diff --git a/smart-updown.tar.gz b/smart-updown.tar.gz
deleted file mode 100644
index a1dc3d9..0000000
Binary files a/smart-updown.tar.gz and /dev/null differ
diff --git a/smart-updown/README.md b/smart-updown/README.md
new file mode 100644
index 0000000..3001262
--- /dev/null
+++ b/smart-updown/README.md
@@ -0,0 +1,136 @@
+# Smart-Updown — пакет развёртывания (localnet)
+
+Бинарная игра UP/DOWN на цену SOL. Пользователь ставит на направление (UP/DOWN)
+на 15 секунд; при выигрыше получает ставку + 30% (1.3x). Дом (контракт) — оппонент.
+Цена берётся off-chain релеером (он же админ) с вашей БД; SOL хранится в ваулте (PDA `global`).
+
+Программа: **Anchor v2 (fork `otter-sec/anchor`, ветка `anchor-next`)**, Solana, Rust.
+
+---
+
+## Состав пакета
+
+```
+smart-updown/
+├── deploy/
+│   ├── smart_updown.so             # скомпилированная программа (SBF-байткод, кроссплатформенный)
+│   └── smart_updown-keypair.json   # authority-ключар программы (ID = E7Hg55...)
+├── idl/
+│   ├── smart_updown.json           # IDL (для клиента)
+│   └── smart_updown.ts             # типы TypeScript для клиента
+├── relayer/                        # off-chain релеер (админ + закрытие ставок)
+│   ├── package.json
+│   ├── tsconfig.json
+│   ├── .env.example
+│   ├── idl/                        # копия IDL для клиента
+│   └── src/
+│       ├── index.ts                # главный цикл
+│       ├── ops.ts                  # initialize / createBet / closeBet / fundVault
+│       ├── pda.ts                  # вывод PDA
+│       ├── program.ts              # клиент из IDL
+│       ├── priceSource.ts          # ЗАГЛУШКА цены SOL (вставить свой запрос к БД)
+│       └── frontStub.ts            # ЗАГЛУШКА фронта (откуда приходит выбор пользователя)
+├── program/                        # исходники контракта (опционально, для пересборки)
+│   ├── Anchor.toml
+│   ├── Cargo.toml / Cargo.lock
+│   ├── rust-toolchain.toml         # пинит Rust 1.89.0
+│   └── programs/smart-updown/{src,tests}
+├── deploy-localnet.sh              # развёртывание на localnet
+└── README.md
+```
+
+---
+
+## 1. Требования (Linux x86_64)
+
+- **Solana CLI (Agave)** — даёт `solana-test-validator`, `solana program deploy`,
+  `cargo build-sbf`, `solana-keygen`. Установка:
+  `sh -c "$(curl -sSfL https://release.anza.xyz/stable/install)"`
+- **Node.js 18+ / npm** — для relayer.
+- (опционально) **Rust 1.89.0** через rustup — только если пересобираете программу.
+
+> **Важно про `.so`**: это SBF-байткод и он не зависит от архитектуры хоста,
+> поэтому `deploy/smart_updown.so`, собранный на macOS, **работает на Linux-валидаторе**
+> как есть — пересобирать не нужно.
+
+## 2. Развёртывание (localnet)
+
+```bash
+chmod +x deploy-localnet.sh
+./deploy-localnet.sh
+```
+
+Скрипт:
+1. переключает `solana config` на `http://127.0.0.1:8899`;
+2. запускает `solana-test-validator` с программой (`--bpf-program E7Hg55...`);
+3. проверяет, что программа поднята под ID `E7Hg55ywRDKRZJ35rDMJGC3YFThQbh6nAK9GDayG4sr3`.
+
+Подытог — программа доступна на localnet под тем же адресом, что зашит в IDL.
+
+## 3. Relayer (админ + закрытие ставок)
+
+```bash
+cd relayer
+npm install
+cp .env.example .env        # при желании поправить значения
+# инициализация контракта (ваулт/Global):
+npm run init
+# один прогон ставки:
+npm run run
+# непрерывный цикл:
+npm run loop
+```
+
+`init` создаёт `Global` (админ + релеер = keypair из `SMART_ADMIN_KEYPAIR`,
+по умолчанию `~/.config/solana/id.json`). На localnet скрипт сам делает airDrop
+bettor'ам и догружает ваулт банка. На mainnet airDrop выключите
+(`SMART_ALLOW_AIRDROP=0`) и пополняйте ваулт переводами с админа.
+
+> AirDrop на localnet выполняется от keypair, настроенного в `solana config`.
+> Убедитесь, что он существует и имеет SOL (в скрипте деплоя это `id.json`,
+> см. `solana config get`).
+
+## 4. Заглушки — куда вставить реальное
+
+- `relayer/src/priceSource.ts` — функция `getPrice()`. **Замените** на запрос цены
+  SOL из вашей БД. Единицы любые, главное согласованность между entry и exit.
+- `relayer/src/frontStub.ts` — функция `nextBetRequest()`. **Замените** на приём
+  со стороны фронта: направление (UP/DOWN) и сумма, которые выбрал пользователь.
+
+## 5. Деплой в новом окружении (если уже есть валидатор, без перезапуска)
+
+```bash
+solana config set --url http://127.0.0.1:8899
+solana program deploy --program-id deploy/smart_updown-keypair.json deploy/smart_updown.so
+```
+
+## 6. (Опционально) Пересборка программы из исходников + тесты
+
+Та же команда, что использовалась для сборки:
+
+```bash
+cd program
+rustup toolchain install 1.89.0   # если нет
+# собрать .so:
+cargo build-sbf --manifest-path programs/smart-updown/Cargo.toml
+# артефакт появится в program/target/deploy/smart_updown.so
+# интеграционные тесты (LiteSVM), без валидатора:
+cargo test -p smart-updown
+```
+
+Если пересобираете, IDL не меняется, пока не меняете layout аккаунтов/инструкций.
+После изменения контракта: пересоберите `.so`, перегенерируйте IDL
+(`anchor build`, при наличии anchor-cli 2.0.0-rc.1) и обновите `relayer/idl/`
+и `idl/`.
+
+## 7. Переменные окружения relayer (см. .env.example)
+
+| Переменная | По умолчанию | Описание |
+|---|---|---|
+| `SMART_RPC_URL` | `http://127.0.0.1:8899` | RPC кластера |
+| `SMART_ALLOW_AIRDROP` | `1` | airDrop bettors/ваулта (localnet) |
+| `SMART_ADMIN_KEYPAIR` | `~/.config/solana/id.json` | keypair админа/релеера |
+| `SMART_MIN_AMOUNT` | `100000000` | мин. ставка (лампорты) |
+| `SMART_MAX_AMOUNT` | `10000000000` | макс. ставка (лампорты) |
+| `SMART_MULTIPLIER_BPS` | `13000` | выплата 1.3x (bps) |
+| `SMART_EXPIRY_SECONDS` | `15` | экспирация (сек) |
diff --git a/smart-updown/deploy-localnet.sh b/smart-updown/deploy-localnet.sh
new file mode 100755
index 0000000..0b75d50
--- /dev/null
+++ b/smart-updown/deploy-localnet.sh
@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+#
+# Развёртывание smart-updown на localnet (solana-test-validator).
+# Использование: ./deploy-localnet.sh
+#
+# Требования: Solana CLI (solana-test-validator, solana program deploy).
+# Если нужно пересобрать программу из исходников, см. README (опционально).
+set -euo pipefail
+
+HERE="$(cd "$(dirname "$0")" && pwd)"
+PROGRAM_SO="$HERE/deploy/smart_updown.so"
+PROGRAM_KEYPAIR="$HERE/deploy/smart_updown-keypair.json"
+PROGRAM_ID="E7Hg55ywRDKRZJ35rDMJGC3YFThQbh6nAK9GDayG4sr3"
+RPC_URL="http://127.0.0.1:8899"
+
+# 1. Настройка CLI на localhost
+solana config set --url "$RPC_URL"
+solana-keygen pubkey "$PROGRAM_KEYPAIR" >/dev/null 2>&1 || {
+  echo "Ошибка: нет deploy/smart_updown-keypair.json"
+  exit 1
+}
+
+# 2. Запуск валидатора с предзагруженной программой (если ещё не запущен)
+if ! solana cluster-version >/dev/null 2>&1; then
+  echo ">>> Стартую solana-test-validator с программой $PROGRAM_ID"
+  solana-test-validator --reset \
+    --bpf-program "$PROGRAM_ID" "$PROGRAM_SO" \
+    >test-ledger.log 2>&1 &
+  sleep 6
+fi
+solana cluster-version
+
+# 3. Убеждаемся, что программа на месте
+if ! solana program show "$PROGRAM_ID" >/dev/null 2>&1; then
+  echo ">>> Деплою программу"
+  solana program deploy --program-id "$PROGRAM_KEYPAIR" "$PROGRAM_SO"
+else
+  echo ">>> Программа уже задеплоена: $PROGRAM_ID"
+fi
+solana program show "$PROGRAM_ID" | head -12
+
+echo
+echo "Готово. Vault/Global инициализируется первым запуском relayer: npm run init"
+echo "Дальше: npm run loop (непрерывно) или npm run run (один прогон)."
+echo
diff --git a/smart-updown/deploy/smart_updown-keypair.json b/smart-updown/deploy/smart_updown-keypair.json
new file mode 100644
index 0000000..15706e6
--- /dev/null
+++ b/smart-updown/deploy/smart_updown-keypair.json
@@ -0,0 +1 @@
+[39,64,110,209,237,123,147,255,190,74,164,207,160,225,89,109,119,197,167,34,86,233,138,227,63,17,57,104,123,10,58,140,194,196,68,144,108,208,236,142,221,255,163,163,238,139,47,184,50,184,127,42,175,209,36,41,202,28,56,58,98,37,116,204]
\ No newline at end of file
diff --git a/smart-updown/deploy/smart_updown.so b/smart-updown/deploy/smart_updown.so
new file mode 100755
index 0000000..47bcdad
Binary files /dev/null and b/smart-updown/deploy/smart_updown.so differ
diff --git a/smart-updown/idl/smart_updown.json b/smart-updown/idl/smart_updown.json
new file mode 100644
index 0000000..0c72abb
--- /dev/null
+++ b/smart-updown/idl/smart_updown.json
@@ -0,0 +1,546 @@
+{
+  "address": "E7Hg55ywRDKRZJ35rDMJGC3YFThQbh6nAK9GDayG4sr3",
+  "metadata": {
+    "name": "smart_updown",
+    "version": "0.1.0",
+    "spec": "0.1.0",
+    "description": "Created with Anchor"
+  },
+  "instructions": [
+    {
+      "name": "close_bet",
+      "discriminator": [
+        2
+      ],
+      "accounts": [
+        {
+          "name": "relayer",
+          "signer": true
+        },
+        {
+          "name": "bet",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  98,
+                  101,
+                  116
+                ]
+              },
+              {
+                "kind": "arg",
+                "path": "id"
+              }
+            ]
+          }
+        },
+        {
+          "name": "global",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  103,
+                  108,
+                  111,
+                  98,
+                  97,
+                  108
+                ]
+              }
+            ]
+          }
+        },
+        {
+          "name": "bettor",
+          "docs": [
+            "CHECK: recipient must be the bet's bettor and is validated in the handler."
+          ],
+          "writable": true
+        },
+        {
+          "name": "clock",
+          "address": "SysvarC1ock11111111111111111111111111111111"
+        }
+      ],
+      "args": [
+        {
+          "name": "id",
+          "type": "u64"
+        },
+        {
+          "name": "exit_price",
+          "type": "u64"
+        }
+      ]
+    },
+    {
+      "name": "create_bet",
+      "discriminator": [
+        1
+      ],
+      "accounts": [
+        {
+          "name": "bettor",
+          "writable": true,
+          "signer": true
+        },
+        {
+          "name": "global",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  103,
+                  108,
+                  111,
+                  98,
+                  97,
+                  108
+                ]
+              }
+            ]
+          }
+        },
+        {
+          "name": "bet",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  98,
+                  101,
+                  116
+                ]
+              },
+              {
+                "kind": "arg",
+                "path": "id"
+              }
+            ]
+          }
+        },
+        {
+          "name": "clock",
+          "address": "SysvarC1ock11111111111111111111111111111111"
+        },
+        {
+          "name": "system_program",
+          "address": "11111111111111111111111111111111"
+        }
+      ],
+      "args": [
+        {
+          "name": "id",
+          "type": "u64"
+        },
+        {
+          "name": "side",
+          "type": "u64"
+        },
+        {
+          "name": "amount",
+          "type": "u64"
+        },
+        {
+          "name": "entry_price",
+          "type": "u64"
+        }
+      ]
+    },
+    {
+      "name": "initialize",
+      "discriminator": [
+        0
+      ],
+      "accounts": [
+        {
+          "name": "admin",
+          "writable": true,
+          "signer": true
+        },
+        {
+          "name": "global",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  103,
+                  108,
+                  111,
+                  98,
+                  97,
+                  108
+                ]
+              }
+            ]
+          }
+        },
+        {
+          "name": "system_program",
+          "address": "11111111111111111111111111111111"
+        }
+      ],
+      "args": [
+        {
+          "name": "min_amount",
+          "type": "u64"
+        },
+        {
+          "name": "max_amount",
+          "type": "u64"
+        },
+        {
+          "name": "multiplier_bps",
+          "type": "u64"
+        },
+        {
+          "name": "expiry_seconds",
+          "type": "i64"
+        }
+      ]
+    },
+    {
+      "name": "update",
+      "discriminator": [
+        3
+      ],
+      "accounts": [
+        {
+          "name": "admin",
+          "signer": true
+        },
+        {
+          "name": "global",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  103,
+                  108,
+                  111,
+                  98,
+                  97,
+                  108
+                ]
+              }
+            ]
+          }
+        }
+      ],
+      "args": [
+        {
+          "name": "new_relayer",
+          "type": "pubkey"
+        },
+        {
+          "name": "min_amount",
+          "type": "u64"
+        },
+        {
+          "name": "max_amount",
+          "type": "u64"
+        },
+        {
+          "name": "multiplier_bps",
+          "type": "u64"
+        },
+        {
+          "name": "paused",
+          "type": "u64"
+        },
+        {
+          "name": "expiry_seconds",
+          "type": "i64"
+        }
+      ]
+    }
+  ],
+  "accounts": [
+    {
+      "name": "Bet",
+      "discriminator": [
+        147,
+        23,
+        35,
+        59,
+        15,
+        75,
+        155,
+        32
+      ]
+    },
+    {
+      "name": "Global",
+      "discriminator": [
+        167,
+        232,
+        232,
+        177,
+        200,
+        108,
+        114,
+        127
+      ]
+    }
+  ],
+  "events": [
+    {
+      "name": "BetClosed",
+      "discriminator": [
+        122,
+        20,
+        157,
+        254,
+        221,
+        0,
+        39,
+        129
+      ]
+    },
+    {
+      "name": "BetCreated",
+      "discriminator": [
+        32,
+        153,
+        105,
+        71,
+        188,
+        72,
+        107,
+        114
+      ]
+    }
+  ],
+  "errors": [
+    {
+      "code": 6000,
+      "name": "Paused",
+      "msg": "Operation is paused"
+    },
+    {
+      "code": 6001,
+      "name": "NotAdmin",
+      "msg": "Only the admin can perform this action"
+    },
+    {
+      "code": 6002,
+      "name": "NotRelayer",
+      "msg": "Only the relayer is allowed to close bets"
+    },
+    {
+      "code": 6003,
+      "name": "AmountBelowMin",
+      "msg": "Amount below the allowed minimum"
+    },
+    {
+      "code": 6004,
+      "name": "AmountAboveMax",
+      "msg": "Amount above the allowed maximum"
+    },
+    {
+      "code": 6005,
+      "name": "InvalidSide",
+      "msg": "Invalid side value"
+    },
+    {
+      "code": 6006,
+      "name": "BetAlreadyFinalized",
+      "msg": "Bet is already finalized"
+    },
+    {
+      "code": 6007,
+      "name": "NotExpired",
+      "msg": "Bet cannot be closed before expiry"
+    },
+    {
+      "code": 6008,
+      "name": "BetIdMismatch",
+      "msg": "Bet id mismatch"
+    },
+    {
+      "code": 6009,
+      "name": "InsufficientVault",
+      "msg": "Payout exceeds vault solvency"
+    }
+  ],
+  "types": [
+    {
+      "name": "Bet",
+      "serialization": "bytemuck",
+      "repr": {
+        "kind": "c"
+      },
+      "type": {
+        "kind": "struct",
+        "fields": [
+          {
+            "name": "amount",
+            "type": "u64"
+          },
+          {
+            "name": "bet_time",
+            "type": "i64"
+          },
+          {
+            "name": "expire_time",
+            "type": "i64"
+          },
+          {
+            "name": "entry_price",
+            "type": "u64"
+          },
+          {
+            "name": "exit_price",
+            "type": "u64"
+          },
+          {
+            "name": "side",
+            "type": "u64"
+          },
+          {
+            "name": "status",
+            "type": "u64"
+          },
+          {
+            "name": "bettor",
+            "type": "pubkey"
+          }
+        ]
+      }
+    },
+    {
+      "name": "BetClosed",
+      "type": {
+        "kind": "struct",
+        "fields": [
+          {
+            "name": "bet",
+            "type": "pubkey"
+          },
+          {
+            "name": "exit_price",
+            "type": "u64"
+          },
+          {
+            "name": "user_won",
+            "type": "bool"
+          },
+          {
+            "name": "payout",
+            "type": "u64"
+          },
+          {
+            "name": "status",
+            "type": "u64"
+          }
+        ]
+      }
+    },
+    {
+      "name": "BetCreated",
+      "type": {
+        "kind": "struct",
+        "fields": [
+          {
+            "name": "bet",
+            "type": "pubkey"
+          },
+          {
+            "name": "bettor",
+            "type": "pubkey"
+          },
+          {
+            "name": "side",
+            "type": "u64"
+          },
+          {
+            "name": "amount",
+            "type": "u64"
+          },
+          {
+            "name": "bet_time",
+            "type": "i64"
+          },
+          {
+            "name": "expire_time",
+            "type": "i64"
+          },
+          {
+            "name": "entry_price",
+            "type": "u64"
+          }
+        ]
+      }
+    },
+    {
+      "name": "Global",
+      "serialization": "bytemuck",
+      "repr": {
+        "kind": "c"
+      },
+      "type": {
+        "kind": "struct",
+        "fields": [
+          {
+            "name": "counter",
+            "type": "u64"
+          },
+          {
+            "name": "min_amount",
+            "type": "u64"
+          },
+          {
+            "name": "max_amount",
+            "type": "u64"
+          },
+          {
+            "name": "multiplier_bps",
+            "type": "u64"
+          },
+          {
+            "name": "expiry_seconds",
+            "type": "i64"
+          },
+          {
+            "name": "paused",
+            "type": "u64"
+          },
+          {
+            "name": "admin",
+            "type": "pubkey"
+          },
+          {
+            "name": "relayer",
+            "type": "pubkey"
+          }
+        ]
+      }
+    }
+  ],
+  "constants": [
+    {
+      "name": "BET_SEED",
+      "type": "bytes",
+      "value": "[98, 101, 116]"
+    },
+    {
+      "name": "GLOBAL_SEED",
+      "type": "bytes",
+      "value": "[103, 108, 111, 98, 97, 108]"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/smart-updown/idl/smart_updown.ts b/smart-updown/idl/smart_updown.ts
new file mode 100644
index 0000000..544568f
--- /dev/null
+++ b/smart-updown/idl/smart_updown.ts
@@ -0,0 +1,552 @@
+/**
+ * Program IDL in camelCase format in order to be used in JS/TS.
+ *
+ * Note that this is only a type helper and is not the actual IDL. The original
+ * IDL can be found at `target/idl/smart_updown.json`.
+ */
+export type SmartUpdown = {
+  "address": "E7Hg55ywRDKRZJ35rDMJGC3YFThQbh6nAK9GDayG4sr3",
+  "metadata": {
+    "name": "smartUpdown",
+    "version": "0.1.0",
+    "spec": "0.1.0",
+    "description": "Created with Anchor"
+  },
+  "instructions": [
+    {
+      "name": "closeBet",
+      "discriminator": [
+        2
+      ],
+      "accounts": [
+        {
+          "name": "relayer",
+          "signer": true
+        },
+        {
+          "name": "bet",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  98,
+                  101,
+                  116
+                ]
+              },
+              {
+                "kind": "arg",
+                "path": "id"
+              }
+            ]
+          }
+        },
+        {
+          "name": "global",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  103,
+                  108,
+                  111,
+                  98,
+                  97,
+                  108
+                ]
+              }
+            ]
+          }
+        },
+        {
+          "name": "bettor",
+          "docs": [
+            "CHECK: recipient must be the bet's bettor and is validated in the handler."
+          ],
+          "writable": true
+        },
+        {
+          "name": "clock",
+          "address": "SysvarC1ock11111111111111111111111111111111"
+        }
+      ],
+      "args": [
+        {
+          "name": "id",
+          "type": "u64"
+        },
+        {
+          "name": "exitPrice",
+          "type": "u64"
+        }
+      ]
+    },
+    {
+      "name": "createBet",
+      "discriminator": [
+        1
+      ],
+      "accounts": [
+        {
+          "name": "bettor",
+          "writable": true,
+          "signer": true
+        },
+        {
+          "name": "global",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  103,
+                  108,
+                  111,
+                  98,
+                  97,
+                  108
+                ]
+              }
+            ]
+          }
+        },
+        {
+          "name": "bet",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  98,
+                  101,
+                  116
+                ]
+              },
+              {
+                "kind": "arg",
+                "path": "id"
+              }
+            ]
+          }
+        },
+        {
+          "name": "clock",
+          "address": "SysvarC1ock11111111111111111111111111111111"
+        },
+        {
+          "name": "systemProgram",
+          "address": "11111111111111111111111111111111"
+        }
+      ],
+      "args": [
+        {
+          "name": "id",
+          "type": "u64"
+        },
+        {
+          "name": "side",
+          "type": "u64"
+        },
+        {
+          "name": "amount",
+          "type": "u64"
+        },
+        {
+          "name": "entryPrice",
+          "type": "u64"
+        }
+      ]
+    },
+    {
+      "name": "initialize",
+      "discriminator": [
+        0
+      ],
+      "accounts": [
+        {
+          "name": "admin",
+          "writable": true,
+          "signer": true
+        },
+        {
+          "name": "global",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  103,
+                  108,
+                  111,
+                  98,
+                  97,
+                  108
+                ]
+              }
+            ]
+          }
+        },
+        {
+          "name": "systemProgram",
+          "address": "11111111111111111111111111111111"
+        }
+      ],
+      "args": [
+        {
+          "name": "minAmount",
+          "type": "u64"
+        },
+        {
+          "name": "maxAmount",
+          "type": "u64"
+        },
+        {
+          "name": "multiplierBps",
+          "type": "u64"
+        },
+        {
+          "name": "expirySeconds",
+          "type": "i64"
+        }
+      ]
+    },
+    {
+      "name": "update",
+      "discriminator": [
+        3
+      ],
+      "accounts": [
+        {
+          "name": "admin",
+          "signer": true
+        },
+        {
+          "name": "global",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  103,
+                  108,
+                  111,
+                  98,
+                  97,
+                  108
+                ]
+              }
+            ]
+          }
+        }
+      ],
+      "args": [
+        {
+          "name": "newRelayer",
+          "type": "pubkey"
+        },
+        {
+          "name": "minAmount",
+          "type": "u64"
+        },
+        {
+          "name": "maxAmount",
+          "type": "u64"
+        },
+        {
+          "name": "multiplierBps",
+          "type": "u64"
+        },
+        {
+          "name": "paused",
+          "type": "u64"
+        },
+        {
+          "name": "expirySeconds",
+          "type": "i64"
+        }
+      ]
+    }
+  ],
+  "accounts": [
+    {
+      "name": "bet",
+      "discriminator": [
+        147,
+        23,
+        35,
+        59,
+        15,
+        75,
+        155,
+        32
+      ]
+    },
+    {
+      "name": "global",
+      "discriminator": [
+        167,
+        232,
+        232,
+        177,
+        200,
+        108,
+        114,
+        127
+      ]
+    }
+  ],
+  "events": [
+    {
+      "name": "betClosed",
+      "discriminator": [
+        122,
+        20,
+        157,
+        254,
+        221,
+        0,
+        39,
+        129
+      ]
+    },
+    {
+      "name": "betCreated",
+      "discriminator": [
+        32,
+        153,
+        105,
+        71,
+        188,
+        72,
+        107,
+        114
+      ]
+    }
+  ],
+  "errors": [
+    {
+      "code": 6000,
+      "name": "paused",
+      "msg": "Operation is paused"
+    },
+    {
+      "code": 6001,
+      "name": "notAdmin",
+      "msg": "Only the admin can perform this action"
+    },
+    {
+      "code": 6002,
+      "name": "notRelayer",
+      "msg": "Only the relayer is allowed to close bets"
+    },
+    {
+      "code": 6003,
+      "name": "amountBelowMin",
+      "msg": "Amount below the allowed minimum"
+    },
+    {
+      "code": 6004,
+      "name": "amountAboveMax",
+      "msg": "Amount above the allowed maximum"
+    },
+    {
+      "code": 6005,
+      "name": "invalidSide",
+      "msg": "Invalid side value"
+    },
+    {
+      "code": 6006,
+      "name": "betAlreadyFinalized",
+      "msg": "Bet is already finalized"
+    },
+    {
+      "code": 6007,
+      "name": "notExpired",
+      "msg": "Bet cannot be closed before expiry"
+    },
+    {
+      "code": 6008,
+      "name": "betIdMismatch",
+      "msg": "Bet id mismatch"
+    },
+    {
+      "code": 6009,
+      "name": "insufficientVault",
+      "msg": "Payout exceeds vault solvency"
+    }
+  ],
+  "types": [
+    {
+      "name": "bet",
+      "serialization": "bytemuck",
+      "repr": {
+        "kind": "c"
+      },
+      "type": {
+        "kind": "struct",
+        "fields": [
+          {
+            "name": "amount",
+            "type": "u64"
+          },
+          {
+            "name": "betTime",
+            "type": "i64"
+          },
+          {
+            "name": "expireTime",
+            "type": "i64"
+          },
+          {
+            "name": "entryPrice",
+            "type": "u64"
+          },
+          {
+            "name": "exitPrice",
+            "type": "u64"
+          },
+          {
+            "name": "side",
+            "type": "u64"
+          },
+          {
+            "name": "status",
+            "type": "u64"
+          },
+          {
+            "name": "bettor",
+            "type": "pubkey"
+          }
+        ]
+      }
+    },
+    {
+      "name": "betClosed",
+      "type": {
+        "kind": "struct",
+        "fields": [
+          {
+            "name": "bet",
+            "type": "pubkey"
+          },
+          {
+            "name": "exitPrice",
+            "type": "u64"
+          },
+          {
+            "name": "userWon",
+            "type": "bool"
+          },
+          {
+            "name": "payout",
+            "type": "u64"
+          },
+          {
+            "name": "status",
+            "type": "u64"
+          }
+        ]
+      }
+    },
+    {
+      "name": "betCreated",
+      "type": {
+        "kind": "struct",
+        "fields": [
+          {
+            "name": "bet",
+            "type": "pubkey"
+          },
+          {
+            "name": "bettor",
+            "type": "pubkey"
+          },
+          {
+            "name": "side",
+            "type": "u64"
+          },
+          {
+            "name": "amount",
+            "type": "u64"
+          },
+          {
+            "name": "betTime",
+            "type": "i64"
+          },
+          {
+            "name": "expireTime",
+            "type": "i64"
+          },
+          {
+            "name": "entryPrice",
+            "type": "u64"
+          }
+        ]
+      }
+    },
+    {
+      "name": "global",
+      "serialization": "bytemuck",
+      "repr": {
+        "kind": "c"
+      },
+      "type": {
+        "kind": "struct",
+        "fields": [
+          {
+            "name": "counter",
+            "type": "u64"
+          },
+          {
+            "name": "minAmount",
+            "type": "u64"
+          },
+          {
+            "name": "maxAmount",
+            "type": "u64"
+          },
+          {
+            "name": "multiplierBps",
+            "type": "u64"
+          },
+          {
+            "name": "expirySeconds",
+            "type": "i64"
+          },
+          {
+            "name": "paused",
+            "type": "u64"
+          },
+          {
+            "name": "admin",
+            "type": "pubkey"
+          },
+          {
+            "name": "relayer",
+            "type": "pubkey"
+          }
+        ]
+      }
+    }
+  ],
+  "constants": [
+    {
+      "name": "betSeed",
+      "type": "bytes",
+      "value": "[98, 101, 116]"
+    },
+    {
+      "name": "globalSeed",
+      "type": "bytes",
+      "value": "[103, 108, 111, 98, 97, 108]"
+    }
+  ]
+};
diff --git a/smart-updown/program/.gitignore b/smart-updown/program/.gitignore
new file mode 100644
index 0000000..58466dc
--- /dev/null
+++ b/smart-updown/program/.gitignore
@@ -0,0 +1,8 @@
+.anchor
+.DS_Store
+target
+**/*.rs.bk
+node_modules
+test-ledger
+.yarn
+.surfpool
diff --git a/smart-updown/program/Anchor.toml b/smart-updown/program/Anchor.toml
new file mode 100644
index 0000000..6da4f68
--- /dev/null
+++ b/smart-updown/program/Anchor.toml
@@ -0,0 +1,20 @@
+skip_local_validator = true
+
+[toolchain]
+package_manager = "npm"
+
+[features]
+resolution = true
+skip-lint = false
+
+[programs.localnet]
+smart_updown = "E7Hg55ywRDKRZJ35rDMJGC3YFThQbh6nAK9GDayG4sr3"
+
+[provider]
+cluster = "localnet"
+wallet = "~/.config/solana/id.json"
+
+[scripts]
+test = "cargo test"
+
+[hooks]
diff --git a/smart-updown/program/Cargo.lock b/smart-updown/program/Cargo.lock
new file mode 100644
index 0000000..79dd138
--- /dev/null
+++ b/smart-updown/program/Cargo.lock
@@ -0,0 +1,4041 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "aead"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d122413f284cf2d62fb1b7db97e02edb8cda96d769b16e443a4f6195e35662b0"
+dependencies = [
+ "crypto-common 0.1.7",
+ "generic-array",
+]
+
+[[package]]
+name = "aes"
+version = "0.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b169f7a6d4742236a0a00c541b845991d0ac43e546831af1249753ab4c3aa3a0"
+dependencies = [
+ "cfg-if",
+ "cipher",
+ "cpufeatures 0.2.17",
+]
+
+[[package]]
+name = "aes-gcm-siv"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae0784134ba9375416d469ec31e7c5f9fa94405049cf08c5ce5b4698be673e0d"
+dependencies = [
+ "aead",
+ "aes",
+ "cipher",
+ "ctr",
+ "polyval",
+ "subtle",
+ "zeroize",
+]
+
+[[package]]
+name = "agave-bls12-381"
+version = "4.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "210b1ef312273aa81ccb4c52687d96e3cf07621f3619a7998be20eb9741b08e3"
+dependencies = [
+ "blst",
+ "blstrs",
+ "bytemuck",
+ "bytemuck_derive",
+ "group",
+ "pairing",
+]
+
+[[package]]
+name = "agave-feature-set"
+version = "4.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dde74a2d1f2f99a3ea59938d1533c7973c344e47d24c1b645ee81e958c54226a"
+dependencies = [
+ "ahash",
+ "solana-epoch-schedule",
+ "solana-hash 4.2.0",
+ "solana-keypair",
+ "solana-pubkey 4.1.0",
+ "solana-sha256-hasher",
+ "solana-svm-feature-set",
+]
+
+[[package]]
+name = "agave-reserved-account-keys"
+version = "4.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "798e559c514af005950ea81586a3856f9297ecb80a7359057c19bf6717f5f537"
+dependencies = [
+ "agave-feature-set",
+ "solana-pubkey 4.1.0",
+ "solana-sdk-ids",
+]
+
+[[package]]
+name = "agave-syscalls"
+version = "4.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "84debd4abe0cbab5a6aac2ee50e3969ef0e0961f7dff7e8f96bda0be7998bca2"
+dependencies = [
+ "agave-bls12-381",
+ "bincode",
+ "libsecp256k1",
+ "num-traits",
+ "solana-account",
+ "solana-account-info",
+ "solana-big-mod-exp",
+ "solana-blake3-hasher",
+ "solana-bn254",
+ "solana-clock",
+ "solana-cpi",
+ "solana-curve25519",
+ "solana-hash 4.2.0",
+ "solana-instruction",
+ "solana-keccak-hasher",
+ "solana-loader-v3-interface",
+ "solana-poseidon",
+ "solana-program-entrypoint",
+ "solana-program-runtime",
+ "solana-pubkey 4.1.0",
+ "solana-sbpf",
+ "solana-sdk-ids",
+ "solana-secp256k1-recover",
+ "solana-sha256-hasher",
+ "solana-stable-layout",
+ "solana-stake-interface",
+ "solana-svm-callback",
+ "solana-svm-feature-set",
+ "solana-svm-log-collector",
+ "solana-svm-measure",
+ "solana-svm-timings",
+ "solana-svm-type-overrides",
+ "solana-sysvar",
+ "solana-sysvar-id",
+ "solana-transaction-context",
+ "thiserror 2.0.20",
+]
+
+[[package]]
+name = "ahash"
+version = "0.8.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a15f179cd60c4584b8a8c596927aadc462e27f2ca70c04e0071964a73ba7a75"
+dependencies = [
+ "cfg-if",
+ "getrandom 0.3.4",
+ "once_cell",
+ "version_check",
+ "zerocopy",
+]
+
+[[package]]
+name = "aho-corasick"
+version = "1.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c982642fa9e8606056828ee9a8505737230110bb1099153c79efe865c59d12ba"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "allocator-api2"
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+
+[[package]]
+name = "anchor-derive-accounts"
+version = "2.0.0-rc.1"
+source = "git+https://github.com/otter-sec/anchor.git?branch=anchor-next#dbdc31fa415ff36e80dbe861c1a2008f72c8b38e"
+dependencies = [
+ "anchor-lang-idl",
+ "bs58",
+ "curve25519-dalek",
+ "proc-macro2",
+ "quote",
+ "serde_json",
+ "sha2 0.10.9",
+ "solana-address 2.7.0",
+ "syn 2.0.119",
+]
+
+[[package]]
+name = "anchor-lang"
+version = "2.0.0-rc.1"
+source = "git+https://github.com/otter-sec/anchor.git?branch=anchor-next#dbdc31fa415ff36e80dbe861c1a2008f72c8b38e"
+dependencies = [
+ "anchor-derive-accounts",
+ "bytemuck",
+ "pinocchio",
+ "pinocchio-system",
+ "sha2 0.10.9",
+ "solana-address 2.7.0",
+ "solana-instruction",
+ "solana-msg",
+ "solana-program-error",
+ "solana-program-memory",
+ "solana-sha256-hasher",
+ "solana-system-interface 2.0.0",
+ "solana-sysvar",
+ "wincode 0.6.1",
+]
+
+[[package]]
+name = "anchor-lang-idl"
+version = "0.2.0"
+source = "git+https://github.com/otter-sec/anchor.git?branch=anchor-next#dbdc31fa415ff36e80dbe861c1a2008f72c8b38e"
+dependencies = [
+ "anchor-lang-idl-spec",
+ "anyhow",
+ "heck",
+ "serde",
+ "serde_json",
+ "sha2 0.10.9",
+]
+
+[[package]]
+name = "anchor-lang-idl-spec"
+version = "0.1.0"
+source = "git+https://github.com/otter-sec/anchor.git?branch=anchor-next#dbdc31fa415ff36e80dbe861c1a2008f72c8b38e"
+dependencies = [
+ "anyhow",
+ "serde",
+]
+
+[[package]]
+name = "anchor-v2-testing"
+version = "0.1.0"
+source = "git+https://github.com/otter-sec/anchor.git?branch=anchor-next#dbdc31fa415ff36e80dbe861c1a2008f72c8b38e"
+dependencies = [
+ "litesvm",
+ "solana-keypair",
+ "solana-message",
+ "solana-program-runtime",
+ "solana-signer",
+ "solana-transaction",
+ "solana-transaction-context",
+]
+
+[[package]]
+name = "ansi_term"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d52a9bb7ec0cf484c551830a7ce27bd20d67eac647e1befb56b0be4ee39a55d2"
+dependencies = [
+ "winapi",
+]
+
+[[package]]
+name = "anyhow"
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+checksum = "330a5ed07fa54e4702c9d6c4174f74427fc0ef6e214bbd677ae50a5099946470"
+
+[[package]]
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+checksum = "a22f4561524cd949590d78d7d4c5df8f592430d221f7f3c9497bbafd8972120f"
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+ "ark-ec 0.4.2",
+ "ark-ff 0.4.2",
+ "ark-std 0.4.0",
+]
+
+[[package]]
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+ "pastey",
+ "proc-macro2",
+ "quote",
+ "thiserror 2.0.20",
+ "wincode-derive 0.4.6",
+]
+
+[[package]]
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+ "pastey",
+ "proc-macro2",
+ "quote",
+ "thiserror 2.0.20",
+ "wincode-derive 0.5.1",
+]
+
+[[package]]
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+ "darling",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.119",
+]
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+[[package]]
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+ "proc-macro2",
+ "quote",
+ "syn 2.0.119",
+]
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+
+[[package]]
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+ "zeroize_derive",
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+[[package]]
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+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.119",
+]
+
+[[package]]
+name = "zmij"
+version = "1.0.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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diff --git a/smart-updown/program/Cargo.toml b/smart-updown/program/Cargo.toml
new file mode 100644
index 0000000..0999ea4
--- /dev/null
+++ b/smart-updown/program/Cargo.toml
@@ -0,0 +1,18 @@
+[workspace]
+members = [
+    "programs/*"
+]
+resolver = "2"
+
+[workspace.package]
+edition = "2021"
+rust-version = "1.89.0"
+
+[profile.release]
+overflow-checks = true
+lto = "fat"
+codegen-units = 1
+[profile.release.build-override]
+opt-level = 3
+incremental = false
+codegen-units = 1
diff --git a/smart-updown/program/programs/smart-updown/Cargo.toml b/smart-updown/program/programs/smart-updown/Cargo.toml
new file mode 100644
index 0000000..ba4adf3
--- /dev/null
+++ b/smart-updown/program/programs/smart-updown/Cargo.toml
@@ -0,0 +1,33 @@
+[package]
+name = "smart-updown"
+version = "0.1.0"
+description = "Created with Anchor"
+edition.workspace = true
+rust-version.workspace = true
+
+[lib]
+crate-type = ["cdylib", "lib"]
+name = "smart_updown"
+
+[features]
+default = []
+cpi = ["no-entrypoint"]
+no-entrypoint = []
+no-log-ix-name = []
+idl-build = []
+profile = ["anchor-v2-testing/profile"]
+
+[dependencies]
+# Once anchor-lang is published to crates.io, swap to: anchor-lang = "2.0.0-rc.1"
+anchor-lang = { git = "https://github.com/otter-sec/anchor.git", branch = "anchor-next" }
+solana-program-log = { version = "1.1", features = ["macro"] }
+wincode = { version = "0.5", features = ["derive"] }
+
+[dev-dependencies]
+anchor-v2-testing = { git = "https://github.com/otter-sec/anchor.git", branch = "anchor-next" }
+solana-clock = "3.0.1"
+solana-pubkey = "3.0.0"
+
+
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = ['cfg(target_os, values("solana"))'] }
diff --git a/smart-updown/program/programs/smart-updown/src/constants.rs b/smart-updown/program/programs/smart-updown/src/constants.rs
new file mode 100644
index 0000000..7e493df
--- /dev/null
+++ b/smart-updown/program/programs/smart-updown/src/constants.rs
@@ -0,0 +1,16 @@
+use anchor_lang::prelude::*;
+
+#[constant]
+pub const GLOBAL_SEED: &[u8] = b"global";
+
+#[constant]
+pub const BET_SEED: &[u8] = b"bet";
+
+pub const SIDE_UP: u64 = 0;
+pub const SIDE_DOWN: u64 = 1;
+
+pub const STATUS_OPEN: u64 = 0;
+pub const STATUS_PAYOUT_DONE: u64 = 1;
+pub const STATUS_HOUSE_WON: u64 = 2;
+
+pub const BPS_DIVISOR: u64 = 10_000;
diff --git a/smart-updown/program/programs/smart-updown/src/error.rs b/smart-updown/program/programs/smart-updown/src/error.rs
new file mode 100644
index 0000000..884660d
--- /dev/null
+++ b/smart-updown/program/programs/smart-updown/src/error.rs
@@ -0,0 +1,34 @@
+use anchor_lang::prelude::*;
+
+#[error_code]
+pub enum SmartUpdownError {
+    #[msg("Operation is paused")]
+    Paused,
+
+    #[msg("Only the admin can perform this action")]
+    NotAdmin,
+
+    #[msg("Only the relayer is allowed to close bets")]
+    NotRelayer,
+
+    #[msg("Amount below the allowed minimum")]
+    AmountBelowMin,
+
+    #[msg("Amount above the allowed maximum")]
+    AmountAboveMax,
+
+    #[msg("Invalid side value")]
+    InvalidSide,
+
+    #[msg("Bet is already finalized")]
+    BetAlreadyFinalized,
+
+    #[msg("Bet cannot be closed before expiry")]
+    NotExpired,
+
+    #[msg("Bet id mismatch")]
+    BetIdMismatch,
+
+    #[msg("Payout exceeds vault solvency")]
+    InsufficientVault,
+}
diff --git a/smart-updown/program/programs/smart-updown/src/events.rs b/smart-updown/program/programs/smart-updown/src/events.rs
new file mode 100644
index 0000000..89c51e7
--- /dev/null
+++ b/smart-updown/program/programs/smart-updown/src/events.rs
@@ -0,0 +1,21 @@
+use anchor_lang::prelude::*;
+
+#[event]
+pub struct BetCreated {
+    pub bet: Address,
+    pub bettor: Address,
+    pub side: u64,
+    pub amount: u64,
+    pub bet_time: i64,
+    pub expire_time: i64,
+    pub entry_price: u64,
+}
+
+#[event]
+pub struct BetClosed {
+    pub bet: Address,
+    pub exit_price: u64,
+    pub user_won: bool,
+    pub payout: u64,
+    pub status: u64,
+}
diff --git a/smart-updown/program/programs/smart-updown/src/instructions.rs b/smart-updown/program/programs/smart-updown/src/instructions.rs
new file mode 100644
index 0000000..2caac14
--- /dev/null
+++ b/smart-updown/program/programs/smart-updown/src/instructions.rs
@@ -0,0 +1,10 @@
+pub mod close_bet;
+pub mod create_bet;
+pub mod initialize;
+pub mod update;
+
+#[allow(ambiguous_glob_reexports)]
+pub use close_bet::*;
+pub use create_bet::*;
+pub use initialize::*;
+pub use update::*;
diff --git a/smart-updown/program/programs/smart-updown/src/instructions/close_bet.rs b/smart-updown/program/programs/smart-updown/src/instructions/close_bet.rs
new file mode 100644
index 0000000..11d7a1b
--- /dev/null
+++ b/smart-updown/program/programs/smart-updown/src/instructions/close_bet.rs
@@ -0,0 +1,95 @@
+use anchor_lang::{prelude::*, Lamports};
+
+use crate::{
+    constants::{
+        BPS_DIVISOR, BET_SEED, GLOBAL_SEED, SIDE_DOWN, SIDE_UP, STATUS_HOUSE_WON,
+        STATUS_PAYOUT_DONE, STATUS_OPEN,
+    },
+    error::SmartUpdownError,
+    events::BetClosed,
+    state::{Bet, Global},
+};
+
+#[derive(Accounts)]
+#[instruction(id: u64, exit_price: u64)]
+pub struct CloseBet {
+    pub relayer: Signer,
+    #[account(
+        mut,
+        seeds = [BET_SEED, id.to_le_bytes()],
+        bump
+    )]
+    pub bet: Account<Bet>,
+    #[account(
+        mut,
+        seeds = [GLOBAL_SEED],
+        bump
+    )]
+    pub global: Account<Global>,
+    /// CHECK: recipient must be the bet's bettor and is validated in the handler.
+    #[account(mut)]
+    pub bettor: SystemAccount,
+    pub clock: Sysvar<Clock>,
+}
+
+pub fn handler(ctx: &mut Context<CloseBet>, id: u64, exit_price: u64) -> Result<()> {
+    require!(
+        anchor_lang::address_eq(ctx.accounts.relayer.address(), &ctx.accounts.global.relayer),
+        SmartUpdownError::NotRelayer
+    );
+    require!(
+        anchor_lang::address_eq(ctx.accounts.bettor.address(), &ctx.accounts.bet.bettor),
+        SmartUpdownError::NotRelayer
+    );
+    require!(
+        ctx.accounts.bet.status == STATUS_OPEN,
+        SmartUpdownError::BetAlreadyFinalized
+    );
+    let now = ctx.accounts.clock.unix_timestamp;
+    require!(now >= ctx.accounts.bet.expire_time, SmartUpdownError::NotExpired);
+
+    let entry = ctx.accounts.bet.entry_price;
+    let side = ctx.accounts.bet.side;
+    let amount = ctx.accounts.bet.amount;
+
+    if exit_price == entry {
+        return Ok(());
+    }
+
+    let user_won = (side == SIDE_UP && exit_price > entry)
+        || (side == SIDE_DOWN && exit_price < entry);
+
+    let payout;
+    if user_won {
+        let multiplier = ctx.accounts.global.multiplier_bps;
+        let payout_amount =
+            (amount as u128)
+                .checked_mul(multiplier as u128)
+                .unwrap()
+                .checked_div(BPS_DIVISOR as u128)
+                .unwrap() as u64;
+        require!(
+            ctx.accounts.global.view().lamports() >= payout_amount,
+            SmartUpdownError::InsufficientVault
+        );
+        payout = payout_amount;
+        ctx.accounts.global.sub_lamports(payout)?;
+        ctx.accounts.bettor.add_lamports(payout)?;
+        ctx.accounts.bet.status = STATUS_PAYOUT_DONE;
+    } else {
+        payout = 0;
+        ctx.accounts.bet.status = STATUS_HOUSE_WON;
+    }
+
+    ctx.accounts.bet.exit_price = exit_price;
+
+    emit!(BetClosed {
+        bet: *ctx.accounts.bet.address(),
+        exit_price,
+        user_won,
+        payout,
+        status: ctx.accounts.bet.status,
+    });
+
+    Ok(())
+}
diff --git a/smart-updown/program/programs/smart-updown/src/instructions/create_bet.rs b/smart-updown/program/programs/smart-updown/src/instructions/create_bet.rs
new file mode 100644
index 0000000..4db75ef
--- /dev/null
+++ b/smart-updown/program/programs/smart-updown/src/instructions/create_bet.rs
@@ -0,0 +1,93 @@
+use anchor_lang::prelude::*;
+
+use crate::{
+    constants::{BET_SEED, GLOBAL_SEED, SIDE_DOWN, SIDE_UP, STATUS_OPEN},
+    error::SmartUpdownError,
+    events::BetCreated,
+    state::{Bet, Global},
+};
+
+#[derive(Accounts)]
+#[instruction(id: u64, side: u64, amount: u64, entry_price: u64)]
+pub struct CreateBet {
+    #[account(mut)]
+    pub bettor: Signer,
+    #[account(
+        mut,
+        seeds = [GLOBAL_SEED],
+        bump
+    )]
+    pub global: Account<Global>,
+    #[account(
+        init,
+        payer = bettor,
+        seeds = [BET_SEED, id.to_le_bytes()],
+        bump
+    )]
+    pub bet: Account<Bet>,
+    pub clock: Sysvar<Clock>,
+    pub system_program: Program<System>,
+}
+
+pub fn handler(
+    ctx: &mut Context<CreateBet>,
+    id: u64,
+    side: u64,
+    amount: u64,
+    entry_price: u64,
+) -> Result<()> {
+    require!(ctx.accounts.global.paused == 0, SmartUpdownError::Paused);
+    require!(side == SIDE_UP || side == SIDE_DOWN, SmartUpdownError::InvalidSide);
+    require!(
+        amount >= ctx.accounts.global.min_amount,
+        SmartUpdownError::AmountBelowMin
+    );
+    require!(
+        amount <= ctx.accounts.global.max_amount,
+        SmartUpdownError::AmountAboveMax
+    );
+    require!(
+        id == ctx.accounts.global.counter,
+        SmartUpdownError::BetIdMismatch
+    );
+
+    let now = ctx.accounts.clock.unix_timestamp;
+    let bettor_address = *ctx.accounts.bettor.address();
+    let bet_address = *ctx.accounts.bet.address();
+    let expiry_seconds = ctx.accounts.global.expiry_seconds;
+
+    {
+        let bet = &mut ctx.accounts.bet;
+        bet.bettor = bettor_address;
+        bet.side = side;
+        bet.amount = amount;
+        bet.bet_time = now;
+        bet.expire_time = now + expiry_seconds;
+        bet.entry_price = entry_price;
+        bet.exit_price = 0;
+        bet.status = STATUS_OPEN;
+    }
+
+    ctx.accounts.global.counter = ctx.accounts.global.counter.checked_add(1).unwrap();
+
+    {
+        let cpi_accounts = system_program::Transfer {
+            from: ctx.accounts.bettor.cpi_handle_mut(),
+            to: ctx.accounts.global.cpi_handle_mut(),
+        };
+        let cpi_ctx = CpiContext::new(ctx.accounts.system_program.address(), cpi_accounts);
+        system_program::transfer(cpi_ctx, amount)?;
+    }
+
+    emit!(BetCreated {
+        bet: bet_address,
+        bettor: bettor_address,
+        side,
+        amount,
+        bet_time: now,
+        expire_time: now + expiry_seconds,
+        entry_price,
+    });
+
+    Ok(())
+}
diff --git a/smart-updown/program/programs/smart-updown/src/instructions/initialize.rs b/smart-updown/program/programs/smart-updown/src/instructions/initialize.rs
new file mode 100644
index 0000000..801995b
--- /dev/null
+++ b/smart-updown/program/programs/smart-updown/src/instructions/initialize.rs
@@ -0,0 +1,36 @@
+use anchor_lang::prelude::*;
+
+use crate::{constants::GLOBAL_SEED, state::Global};
+
+#[derive(Accounts)]
+pub struct Initialize {
+    #[account(mut)]
+    pub admin: Signer,
+    #[account(
+        init,
+        payer = admin,
+        seeds = [GLOBAL_SEED],
+        bump
+    )]
+    pub global: Account<Global>,
+    pub system_program: Program<System>,
+}
+
+pub fn handler(
+    ctx: &mut Context<Initialize>,
+    min_amount: u64,
+    max_amount: u64,
+    multiplier_bps: u64,
+    expiry_seconds: i64,
+) -> Result<()> {
+    let global = &mut ctx.accounts.global;
+    global.admin = *ctx.accounts.admin.address();
+    global.relayer = *ctx.accounts.admin.address();
+    global.counter = 0;
+    global.min_amount = min_amount;
+    global.max_amount = max_amount;
+    global.multiplier_bps = multiplier_bps;
+    global.paused = 0;
+    global.expiry_seconds = expiry_seconds;
+    Ok(())
+}
diff --git a/smart-updown/program/programs/smart-updown/src/instructions/update.rs b/smart-updown/program/programs/smart-updown/src/instructions/update.rs
new file mode 100644
index 0000000..25f59c2
--- /dev/null
+++ b/smart-updown/program/programs/smart-updown/src/instructions/update.rs
@@ -0,0 +1,41 @@
+use anchor_lang::prelude::*;
+
+use crate::{
+    constants::GLOBAL_SEED,
+    error::SmartUpdownError,
+    state::Global,
+};
+
+#[derive(Accounts)]
+pub struct Update {
+    pub admin: Signer,
+    #[account(
+        mut,
+        seeds = [GLOBAL_SEED],
+        bump
+    )]
+    pub global: Account<Global>,
+}
+
+pub fn handler(
+    ctx: &mut Context<Update>,
+    new_relayer: Address,
+    min_amount: u64,
+    max_amount: u64,
+    multiplier_bps: u64,
+    paused: u64,
+    expiry_seconds: i64,
+) -> Result<()> {
+    require!(
+        anchor_lang::address_eq(ctx.accounts.admin.address(), &ctx.accounts.global.admin),
+        SmartUpdownError::NotAdmin
+    );
+    let global = &mut ctx.accounts.global;
+    global.relayer = new_relayer;
+    global.min_amount = min_amount;
+    global.max_amount = max_amount;
+    global.multiplier_bps = multiplier_bps;
+    global.paused = paused;
+    global.expiry_seconds = expiry_seconds;
+    Ok(())
+}
diff --git a/smart-updown/program/programs/smart-updown/src/lib.rs b/smart-updown/program/programs/smart-updown/src/lib.rs
new file mode 100644
index 0000000..3afedca
--- /dev/null
+++ b/smart-updown/program/programs/smart-updown/src/lib.rs
@@ -0,0 +1,68 @@
+pub mod constants;
+pub mod error;
+pub mod events;
+pub mod instructions;
+pub mod state;
+
+use anchor_lang::prelude::*;
+
+pub use instructions::*;
+
+declare_id!("E7Hg55ywRDKRZJ35rDMJGC3YFThQbh6nAK9GDayG4sr3");
+
+#[program]
+pub mod smart_updown {
+    use super::*;
+
+    #[discrim = 0]
+    pub fn initialize(
+        ctx: &mut Context<Initialize>,
+        min_amount: u64,
+        max_amount: u64,
+        multiplier_bps: u64,
+        expiry_seconds: i64,
+    ) -> Result<()> {
+        initialize::handler(ctx, min_amount, max_amount, multiplier_bps, expiry_seconds)
+    }
+
+    #[discrim = 1]
+    pub fn create_bet(
+        ctx: &mut Context<CreateBet>,
+        id: u64,
+        side: u64,
+        amount: u64,
+        entry_price: u64,
+    ) -> Result<()> {
+        create_bet::handler(ctx, id, side, amount, entry_price)
+    }
+
+    #[discrim = 2]
+    pub fn close_bet(
+        ctx: &mut Context<CloseBet>,
+        id: u64,
+        exit_price: u64,
+    ) -> Result<()> {
+        close_bet::handler(ctx, id, exit_price)
+    }
+
+    #[discrim = 3]
+    pub fn update(
+        ctx: &mut Context<Update>,
+        new_relayer: Address,
+        min_amount: u64,
+        max_amount: u64,
+        multiplier_bps: u64,
+        paused: u64,
+        expiry_seconds: i64,
+    ) -> Result<()> {
+        update::handler(
+            ctx,
+            new_relayer,
+            min_amount,
+            max_amount,
+            multiplier_bps,
+            paused,
+            expiry_seconds,
+        )
+    }
+}
diff --git a/smart-updown/program/programs/smart-updown/src/state.rs b/smart-updown/program/programs/smart-updown/src/state.rs
new file mode 100644
index 0000000..09befeb
--- /dev/null
+++ b/smart-updown/program/programs/smart-updown/src/state.rs
@@ -0,0 +1,25 @@
+use anchor_lang::prelude::*;
+
+#[account]
+pub struct Global {
+    pub counter: u64,
+    pub min_amount: u64,
+    pub max_amount: u64,
+    pub multiplier_bps: u64,
+    pub expiry_seconds: i64,
+    pub paused: u64,
+    pub admin: Address,
+    pub relayer: Address,
+}
+
+#[account]
+pub struct Bet {
+    pub amount: u64,
+    pub bet_time: i64,
+    pub expire_time: i64,
+    pub entry_price: u64,
+    pub exit_price: u64,
+    pub side: u64,
+    pub status: u64,
+    pub bettor: Address,
+}
diff --git a/smart-updown/program/programs/smart-updown/tests/test_smart_updown.rs b/smart-updown/program/programs/smart-updown/tests/test_smart_updown.rs
new file mode 100644
index 0000000..d798760
--- /dev/null
+++ b/smart-updown/program/programs/smart-updown/tests/test_smart_updown.rs
@@ -0,0 +1,283 @@
+use {
+    anchor_lang::{
+        bytemuck, cpi::find_program_address, solana_program::instruction::Instruction, Id,
+        InstructionData, ToAccountMetas,
+    },
+    anchor_v2_testing::{Keypair, LiteSVM, Message, Signer, VersionedMessage, VersionedTransaction},
+    smart_updown::state::{Bet, Global},
+};
+
+const CLOCK_ADDR: &str = "SysvarC1ock11111111111111111111111111111111";
+const SYSTEM_ADDR: &str = "11111111111111111111111111111111";
+const MIN_AMOUNT: u64 = 1_000_000_000; // 1 SOL
+const MULTIPLIER_BPS: u64 = 13_000; // 1.3x
+const EXPIRY_SECONDS: i64 = 15;
+
+type Addr = anchor_lang::prelude::Address;
+
+fn pid() -> Addr {
+    smart_updown::id()
+}
+
+fn global_pda() -> Addr {
+    find_program_address(&[b"global"], &pid()).0
+}
+
+fn bet_pda(id: u64) -> Addr {
+    find_program_address(&[b"bet", &id.to_le_bytes()], &pid()).0
+}
+
+fn setup() -> (LiteSVM, Keypair) {
+    let mut svm = LiteSVM::new();
+    let bytes = include_bytes!("../../../target/deploy/smart_updown.so");
+    svm.add_program(pid(), bytes).expect("deploy program");
+    let payer = Keypair::new();
+    svm.airdrop(&payer.pubkey(), 100_000_000_000).unwrap();
+    (svm, payer)
+}
+
+fn send(svm: &mut LiteSVM, signers: &[&Keypair], instruction: Instruction) -> Result<(), String> {
+    let blockhash = svm.latest_blockhash();
+    let msg = Message::new_with_blockhash(&[instruction], Some(&signers[0].pubkey()), &blockhash);
+    let tx = VersionedTransaction::try_new(VersionedMessage::Legacy(msg), signers).unwrap();
+    let res = svm.send_transaction(tx);
+    res.map(|_| ()).map_err(|e| format!("{:?}", e))
+}
+
+fn initialize(svm: &mut LiteSVM, admin: &Keypair) {
+    let ix = Instruction::new_with_bytes(
+        pid(),
+        &smart_updown::instruction::Initialize {
+            min_amount: MIN_AMOUNT,
+            max_amount: 1_000_000_000_000,
+            multiplier_bps: MULTIPLIER_BPS,
+            expiry_seconds: EXPIRY_SECONDS,
+        }
+        .data(),
+        smart_updown::accounts::Initialize {
+            admin: admin.pubkey(),
+            global: global_pda(),
+            system_program: SYSTEM_ADDR.parse().unwrap(),
+        }
+        .to_account_metas(None),
+    );
+    send(svm, &[admin], ix).expect("initialize");
+}
+
+fn set_clock(svm: &mut LiteSVM, unix: i64) {
+    use solana_clock::Clock;
+    let mut clk = svm.get_sysvar::<Clock>();
+    clk.unix_timestamp = unix;
+    svm.set_sysvar(&clk);
+}
+
+fn fund_vault(svm: &mut LiteSVM, lamports: u64) {
+    svm.airdrop(&global_pda(), lamports).unwrap();
+}
+
+fn read_global(svm: &LiteSVM) -> Global {
+    let acc = svm.get_account(&global_pda()).expect("global account");
+    *bytemuck::from_bytes::<Global>(&acc.data[8..])
+}
+
+fn read_bet(svm: &LiteSVM, id: u64) -> Bet {
+    let acc = svm.get_account(&bet_pda(id)).expect("bet account");
+    *bytemuck::from_bytes::<Bet>(&acc.data[8..])
+}
+
+fn make_create_ix(id: u64, side: u64, amount: u64, entry_price: u64, bettor: Addr) -> Instruction {
+    Instruction::new_with_bytes(
+        pid(),
+        &smart_updown::instruction::CreateBet {
+            id,
+            side,
+            amount,
+            entry_price,
+        }
+        .data(),
+        smart_updown::accounts::CreateBet {
+            bettor,
+            global: global_pda(),
+            bet: bet_pda(id),
+            clock: CLOCK_ADDR.parse().unwrap(),
+            system_program: SYSTEM_ADDR.parse().unwrap(),
+        }
+        .to_account_metas(None),
+    )
+}
+
+fn make_close_ix(id: u64, exit_price: u64, relayer: Addr, bettor: Addr) -> Instruction {
+    Instruction::new_with_bytes(
+        pid(),
+        &smart_updown::instruction::CloseBet { id, exit_price }.data(),
+        smart_updown::accounts::CloseBet {
+            relayer,
+            bet: bet_pda(id),
+            global: global_pda(),
+            bettor,
+            clock: CLOCK_ADDR.parse().unwrap(),
+        }
+        .to_account_metas(None),
+    )
+}
+
+fn create_up_bet(svm: &mut LiteSVM, admin: &Keypair, side: u64) -> (Keypair, u64, u64) {
+    let bettor = Keypair::new();
+    svm.airdrop(&bettor.pubkey(), 100_000_000_000).unwrap();
+    set_clock(svm, 1_700_000_000);
+    let amount = MIN_AMOUNT;
+    let entry_price = 100_000_000u64;
+    let create_ix = make_create_ix(0, side, amount, entry_price, bettor.pubkey());
+    send(svm, &[&bettor], create_ix).expect("create_bet");
+    (bettor, amount, entry_price)
+}
+
+#[test]
+fn initialize_creates_global() {
+    let (mut svm, admin) = setup();
+    initialize(&mut svm, &admin);
+    let g = read_global(&svm);
+    assert_eq!(g.admin, admin.pubkey());
+    assert_eq!(g.relayer, admin.pubkey());
+    assert_eq!(g.counter, 0);
+    assert_eq!(g.multiplier_bps, MULTIPLIER_BPS);
+    assert_eq!(g.expiry_seconds, EXPIRY_SECONDS);
+    assert_eq!(g.paused, 0);
+}
+
+#[test]
+fn create_bet_escrows_sol() {
+    let (mut svm, admin) = setup();
+    initialize(&mut svm, &admin);
+    let (bettor, amount, entry_price) = create_up_bet(&mut svm, &admin, 0);
+
+    let vault_balance = svm.get_balance(&global_pda()).unwrap();
+    assert!(vault_balance >= amount);
+    let b = read_bet(&svm, 0);
+    assert_eq!(b.bettor, bettor.pubkey());
+    assert_eq!(b.side, 0);
+    assert_eq!(b.amount, amount);
+    assert_eq!(b.entry_price, entry_price);
+    assert_eq!(b.bet_time, 1_700_000_000);
+    assert_eq!(b.expire_time, 1_700_000_000 + EXPIRY_SECONDS);
+    assert_eq!(b.status, 0);
+    assert_eq!(read_global(&svm).counter, 1);
+}
+
+#[test]
+fn close_bet_user_wins_up() {
+    let (mut svm, admin) = setup();
+    initialize(&mut svm, &admin);
+    let (bettor, amount, entry_price) = create_up_bet(&mut svm, &admin, 0);
+
+    set_clock(&mut svm, 1_700_000_000 + EXPIRY_SECONDS + 1);
+    let exit_price = entry_price + 1_000;
+    let before = svm.get_balance(&bettor.pubkey()).unwrap();
+    let payout = amount * MULTIPLIER_BPS / 10_000;
+    fund_vault(&mut svm, 10 * amount);
+
+    let close_ix = make_close_ix(0, exit_price, admin.pubkey(), bettor.pubkey());
+    send(&mut svm, &[&admin], close_ix).expect("close_bet");
+
+    assert_eq!(svm.get_balance(&bettor.pubkey()).unwrap(), before + payout);
+    let b = read_bet(&svm, 0);
+    assert_eq!(b.status, 1);
+    assert_eq!(b.exit_price, exit_price);
+}
+
+#[test]
+fn close_bet_house_wins_down() {
+    let (mut svm, admin) = setup();
+    initialize(&mut svm, &admin);
+    let (bettor, _amount, entry_price) = create_up_bet(&mut svm, &admin, 1);
+
+    set_clock(&mut svm, 1_700_000_000 + EXPIRY_SECONDS + 1);
+    let exit_price = entry_price + 1_000; // side=DOWN but price rose -> lose
+    let before = svm.get_balance(&bettor.pubkey()).unwrap();
+
+    let close_ix = make_close_ix(0, exit_price, admin.pubkey(), bettor.pubkey());
+    send(&mut svm, &[&admin], close_ix).expect("close_bet");
+
+    assert_eq!(svm.get_balance(&bettor.pubkey()).unwrap(), before);
+    assert_eq!(read_bet(&svm, 0).status, 2);
+}
+
+#[test]
+fn close_bet_equal_price_stays_open() {
+    let (mut svm, admin) = setup();
+    initialize(&mut svm, &admin);
+    let (bettor, amount, entry_price) = create_up_bet(&mut svm, &admin, 0);
+
+    set_clock(&mut svm, 1_700_000_000 + EXPIRY_SECONDS + 1);
+    let before = svm.get_balance(&bettor.pubkey()).unwrap();
+    let payout = amount * MULTIPLIER_BPS / 10_000;
+    fund_vault(&mut svm, 10 * amount);
+
+    let equal_ix = make_close_ix(0, entry_price, admin.pubkey(), bettor.pubkey());
+    send(&mut svm, &[&admin], equal_ix).expect("equal close");
+    assert_eq!(read_bet(&svm, 0).status, 0);
+    assert_eq!(svm.get_balance(&bettor.pubkey()).unwrap(), before);
+
+    let exit_price = entry_price + 1_000;
+    let second_ix = make_close_ix(0, exit_price, admin.pubkey(), bettor.pubkey());
+    send(&mut svm, &[&admin], second_ix).expect("second close");
+    assert_eq!(
+        svm.get_balance(&bettor.pubkey()).unwrap(),
+        before + payout
+    );
+    assert_eq!(read_bet(&svm, 0).status, 1);
+}
+
+#[test]
+fn close_bet_before_expiry_rejected() {
+    let (mut svm, admin) = setup();
+    initialize(&mut svm, &admin);
+    let (bettor, _amount, entry_price) = create_up_bet(&mut svm, &admin, 0);
+
+    let close_ix = make_close_ix(0, entry_price + 500, admin.pubkey(), bettor.pubkey());
+    let res = send(&mut svm, &[&admin], close_ix);
+    assert!(res.is_err(), "expected premature close to be rejected");
+    assert_eq!(read_bet(&svm, 0).status, 0);
+}
+
+#[test]
+fn close_bet_wrong_relayer_rejected() {
+    let (mut svm, admin) = setup();
+    initialize(&mut svm, &admin);
+    let (bettor, _amount, entry_price) = create_up_bet(&mut svm, &admin, 0);
+    let attacker = Keypair::new();
+    svm.airdrop(&attacker.pubkey(), 100_000_000_000).unwrap();
+
+    set_clock(&mut svm, 1_700_000_000 + EXPIRY_SECONDS + 1);
+    let close_ix = make_close_ix(0, entry_price + 500, attacker.pubkey(), bettor.pubkey());
+    let res = send(&mut svm, &[&attacker], close_ix);
+    assert!(res.is_err(), "expected wrong relayer to be rejected");
+    assert_eq!(read_bet(&svm, 0).status, 0);
+}
+
+#[test]
+fn close_bet_replay_rejected() {
+    let (mut svm, admin) = setup();
+    initialize(&mut svm, &admin);
+    let (bettor, _amount, entry_price) = create_up_bet(&mut svm, &admin, 0);
+
+    set_clock(&mut svm, 1_700_000_000 + EXPIRY_SECONDS + 1);
+    fund_vault(&mut svm, 10 * MIN_AMOUNT);
+    let close_ix = make_close_ix(0, entry_price + 500, admin.pubkey(), bettor.pubkey());
+    send(&mut svm, &[&admin], close_ix).expect("first close");
+    let res = send(&mut svm, &[&admin], make_close_ix(0, entry_price + 500, admin.pubkey(), bettor.pubkey()));
+    assert!(res.is_err(), "expected replay close to be rejected");
+}
+
+#[test]
+fn create_bet_rejects_out_of_range() {
+    let (mut svm, admin) = setup();
+    initialize(&mut svm, &admin);
+    let bettor = Keypair::new();
+    svm.airdrop(&bettor.pubkey(), 100_000_000_000).unwrap();
+    set_clock(&mut svm, 1_700_000_000);
+
+    let ix = make_create_ix(0, 0, 1, 100_000_000u64, bettor.pubkey());
+    let res = send(&mut svm, &[&bettor], ix);
+    assert!(res.is_err(), "expected below-min bet to be rejected");
+}
diff --git a/smart-updown/program/rust-toolchain.toml b/smart-updown/program/rust-toolchain.toml
new file mode 100644
index 0000000..cb684c0
--- /dev/null
+++ b/smart-updown/program/rust-toolchain.toml
@@ -0,0 +1,4 @@
+[toolchain]
+channel = "1.89.0"
+components = ["rustfmt","clippy"]
+profile = "minimal"
diff --git a/smart-updown/relayer/.env.example b/smart-updown/relayer/.env.example
new file mode 100644
index 0000000..6beb0e0
--- /dev/null
+++ b/smart-updown/relayer/.env.example
@@ -0,0 +1,14 @@
+# RPC эндпоинт кластера (localnet = запущенный solana-test-validator)
+SMART_RPC_URL=http://127.0.0.1:8899
+
+# Разрешить airDrop на localnet (bettor'ам и ваулту). На mainnet выключить.
+SMART_ALLOW_AIRDROP=1
+
+# Путь к keypair админа/релеера (тот же ключ = admin и relayer)
+SMART_ADMIN_KEYPAIR=~/.config/solana/id.json
+
+# Параметры контракта (должны совпадать со значениями при initialize)
+SMART_MIN_AMOUNT=100000000        # 0.1 SOL в лампортах
+SMART_MAX_AMOUNT=10000000000      # 10 SOL в лампортах
+SMART_MULTIPLIER_BPS=13000        # 1.3x выплата в базисных пунктах
+SMART_EXPIRY_SECONDS=15           # экспирация ставки (секунды)
diff --git a/smart-updown/relayer/idl/smart_updown.json b/smart-updown/relayer/idl/smart_updown.json
new file mode 100644
index 0000000..0c72abb
--- /dev/null
+++ b/smart-updown/relayer/idl/smart_updown.json
@@ -0,0 +1,546 @@
+{
+  "address": "E7Hg55ywRDKRZJ35rDMJGC3YFThQbh6nAK9GDayG4sr3",
+  "metadata": {
+    "name": "smart_updown",
+    "version": "0.1.0",
+    "spec": "0.1.0",
+    "description": "Created with Anchor"
+  },
+  "instructions": [
+    {
+      "name": "close_bet",
+      "discriminator": [
+        2
+      ],
+      "accounts": [
+        {
+          "name": "relayer",
+          "signer": true
+        },
+        {
+          "name": "bet",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  98,
+                  101,
+                  116
+                ]
+              },
+              {
+                "kind": "arg",
+                "path": "id"
+              }
+            ]
+          }
+        },
+        {
+          "name": "global",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  103,
+                  108,
+                  111,
+                  98,
+                  97,
+                  108
+                ]
+              }
+            ]
+          }
+        },
+        {
+          "name": "bettor",
+          "docs": [
+            "CHECK: recipient must be the bet's bettor and is validated in the handler."
+          ],
+          "writable": true
+        },
+        {
+          "name": "clock",
+          "address": "SysvarC1ock11111111111111111111111111111111"
+        }
+      ],
+      "args": [
+        {
+          "name": "id",
+          "type": "u64"
+        },
+        {
+          "name": "exit_price",
+          "type": "u64"
+        }
+      ]
+    },
+    {
+      "name": "create_bet",
+      "discriminator": [
+        1
+      ],
+      "accounts": [
+        {
+          "name": "bettor",
+          "writable": true,
+          "signer": true
+        },
+        {
+          "name": "global",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  103,
+                  108,
+                  111,
+                  98,
+                  97,
+                  108
+                ]
+              }
+            ]
+          }
+        },
+        {
+          "name": "bet",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  98,
+                  101,
+                  116
+                ]
+              },
+              {
+                "kind": "arg",
+                "path": "id"
+              }
+            ]
+          }
+        },
+        {
+          "name": "clock",
+          "address": "SysvarC1ock11111111111111111111111111111111"
+        },
+        {
+          "name": "system_program",
+          "address": "11111111111111111111111111111111"
+        }
+      ],
+      "args": [
+        {
+          "name": "id",
+          "type": "u64"
+        },
+        {
+          "name": "side",
+          "type": "u64"
+        },
+        {
+          "name": "amount",
+          "type": "u64"
+        },
+        {
+          "name": "entry_price",
+          "type": "u64"
+        }
+      ]
+    },
+    {
+      "name": "initialize",
+      "discriminator": [
+        0
+      ],
+      "accounts": [
+        {
+          "name": "admin",
+          "writable": true,
+          "signer": true
+        },
+        {
+          "name": "global",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  103,
+                  108,
+                  111,
+                  98,
+                  97,
+                  108
+                ]
+              }
+            ]
+          }
+        },
+        {
+          "name": "system_program",
+          "address": "11111111111111111111111111111111"
+        }
+      ],
+      "args": [
+        {
+          "name": "min_amount",
+          "type": "u64"
+        },
+        {
+          "name": "max_amount",
+          "type": "u64"
+        },
+        {
+          "name": "multiplier_bps",
+          "type": "u64"
+        },
+        {
+          "name": "expiry_seconds",
+          "type": "i64"
+        }
+      ]
+    },
+    {
+      "name": "update",
+      "discriminator": [
+        3
+      ],
+      "accounts": [
+        {
+          "name": "admin",
+          "signer": true
+        },
+        {
+          "name": "global",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  103,
+                  108,
+                  111,
+                  98,
+                  97,
+                  108
+                ]
+              }
+            ]
+          }
+        }
+      ],
+      "args": [
+        {
+          "name": "new_relayer",
+          "type": "pubkey"
+        },
+        {
+          "name": "min_amount",
+          "type": "u64"
+        },
+        {
+          "name": "max_amount",
+          "type": "u64"
+        },
+        {
+          "name": "multiplier_bps",
+          "type": "u64"
+        },
+        {
+          "name": "paused",
+          "type": "u64"
+        },
+        {
+          "name": "expiry_seconds",
+          "type": "i64"
+        }
+      ]
+    }
+  ],
+  "accounts": [
+    {
+      "name": "Bet",
+      "discriminator": [
+        147,
+        23,
+        35,
+        59,
+        15,
+        75,
+        155,
+        32
+      ]
+    },
+    {
+      "name": "Global",
+      "discriminator": [
+        167,
+        232,
+        232,
+        177,
+        200,
+        108,
+        114,
+        127
+      ]
+    }
+  ],
+  "events": [
+    {
+      "name": "BetClosed",
+      "discriminator": [
+        122,
+        20,
+        157,
+        254,
+        221,
+        0,
+        39,
+        129
+      ]
+    },
+    {
+      "name": "BetCreated",
+      "discriminator": [
+        32,
+        153,
+        105,
+        71,
+        188,
+        72,
+        107,
+        114
+      ]
+    }
+  ],
+  "errors": [
+    {
+      "code": 6000,
+      "name": "Paused",
+      "msg": "Operation is paused"
+    },
+    {
+      "code": 6001,
+      "name": "NotAdmin",
+      "msg": "Only the admin can perform this action"
+    },
+    {
+      "code": 6002,
+      "name": "NotRelayer",
+      "msg": "Only the relayer is allowed to close bets"
+    },
+    {
+      "code": 6003,
+      "name": "AmountBelowMin",
+      "msg": "Amount below the allowed minimum"
+    },
+    {
+      "code": 6004,
+      "name": "AmountAboveMax",
+      "msg": "Amount above the allowed maximum"
+    },
+    {
+      "code": 6005,
+      "name": "InvalidSide",
+      "msg": "Invalid side value"
+    },
+    {
+      "code": 6006,
+      "name": "BetAlreadyFinalized",
+      "msg": "Bet is already finalized"
+    },
+    {
+      "code": 6007,
+      "name": "NotExpired",
+      "msg": "Bet cannot be closed before expiry"
+    },
+    {
+      "code": 6008,
+      "name": "BetIdMismatch",
+      "msg": "Bet id mismatch"
+    },
+    {
+      "code": 6009,
+      "name": "InsufficientVault",
+      "msg": "Payout exceeds vault solvency"
+    }
+  ],
+  "types": [
+    {
+      "name": "Bet",
+      "serialization": "bytemuck",
+      "repr": {
+        "kind": "c"
+      },
+      "type": {
+        "kind": "struct",
+        "fields": [
+          {
+            "name": "amount",
+            "type": "u64"
+          },
+          {
+            "name": "bet_time",
+            "type": "i64"
+          },
+          {
+            "name": "expire_time",
+            "type": "i64"
+          },
+          {
+            "name": "entry_price",
+            "type": "u64"
+          },
+          {
+            "name": "exit_price",
+            "type": "u64"
+          },
+          {
+            "name": "side",
+            "type": "u64"
+          },
+          {
+            "name": "status",
+            "type": "u64"
+          },
+          {
+            "name": "bettor",
+            "type": "pubkey"
+          }
+        ]
+      }
+    },
+    {
+      "name": "BetClosed",
+      "type": {
+        "kind": "struct",
+        "fields": [
+          {
+            "name": "bet",
+            "type": "pubkey"
+          },
+          {
+            "name": "exit_price",
+            "type": "u64"
+          },
+          {
+            "name": "user_won",
+            "type": "bool"
+          },
+          {
+            "name": "payout",
+            "type": "u64"
+          },
+          {
+            "name": "status",
+            "type": "u64"
+          }
+        ]
+      }
+    },
+    {
+      "name": "BetCreated",
+      "type": {
+        "kind": "struct",
+        "fields": [
+          {
+            "name": "bet",
+            "type": "pubkey"
+          },
+          {
+            "name": "bettor",
+            "type": "pubkey"
+          },
+          {
+            "name": "side",
+            "type": "u64"
+          },
+          {
+            "name": "amount",
+            "type": "u64"
+          },
+          {
+            "name": "bet_time",
+            "type": "i64"
+          },
+          {
+            "name": "expire_time",
+            "type": "i64"
+          },
+          {
+            "name": "entry_price",
+            "type": "u64"
+          }
+        ]
+      }
+    },
+    {
+      "name": "Global",
+      "serialization": "bytemuck",
+      "repr": {
+        "kind": "c"
+      },
+      "type": {
+        "kind": "struct",
+        "fields": [
+          {
+            "name": "counter",
+            "type": "u64"
+          },
+          {
+            "name": "min_amount",
+            "type": "u64"
+          },
+          {
+            "name": "max_amount",
+            "type": "u64"
+          },
+          {
+            "name": "multiplier_bps",
+            "type": "u64"
+          },
+          {
+            "name": "expiry_seconds",
+            "type": "i64"
+          },
+          {
+            "name": "paused",
+            "type": "u64"
+          },
+          {
+            "name": "admin",
+            "type": "pubkey"
+          },
+          {
+            "name": "relayer",
+            "type": "pubkey"
+          }
+        ]
+      }
+    }
+  ],
+  "constants": [
+    {
+      "name": "BET_SEED",
+      "type": "bytes",
+      "value": "[98, 101, 116]"
+    },
+    {
+      "name": "GLOBAL_SEED",
+      "type": "bytes",
+      "value": "[103, 108, 111, 98, 97, 108]"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/smart-updown/relayer/idl/smart_updown.ts b/smart-updown/relayer/idl/smart_updown.ts
new file mode 100644
index 0000000..544568f
--- /dev/null
+++ b/smart-updown/relayer/idl/smart_updown.ts
@@ -0,0 +1,552 @@
+/**
+ * Program IDL in camelCase format in order to be used in JS/TS.
+ *
+ * Note that this is only a type helper and is not the actual IDL. The original
+ * IDL can be found at `target/idl/smart_updown.json`.
+ */
+export type SmartUpdown = {
+  "address": "E7Hg55ywRDKRZJ35rDMJGC3YFThQbh6nAK9GDayG4sr3",
+  "metadata": {
+    "name": "smartUpdown",
+    "version": "0.1.0",
+    "spec": "0.1.0",
+    "description": "Created with Anchor"
+  },
+  "instructions": [
+    {
+      "name": "closeBet",
+      "discriminator": [
+        2
+      ],
+      "accounts": [
+        {
+          "name": "relayer",
+          "signer": true
+        },
+        {
+          "name": "bet",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  98,
+                  101,
+                  116
+                ]
+              },
+              {
+                "kind": "arg",
+                "path": "id"
+              }
+            ]
+          }
+        },
+        {
+          "name": "global",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  103,
+                  108,
+                  111,
+                  98,
+                  97,
+                  108
+                ]
+              }
+            ]
+          }
+        },
+        {
+          "name": "bettor",
+          "docs": [
+            "CHECK: recipient must be the bet's bettor and is validated in the handler."
+          ],
+          "writable": true
+        },
+        {
+          "name": "clock",
+          "address": "SysvarC1ock11111111111111111111111111111111"
+        }
+      ],
+      "args": [
+        {
+          "name": "id",
+          "type": "u64"
+        },
+        {
+          "name": "exitPrice",
+          "type": "u64"
+        }
+      ]
+    },
+    {
+      "name": "createBet",
+      "discriminator": [
+        1
+      ],
+      "accounts": [
+        {
+          "name": "bettor",
+          "writable": true,
+          "signer": true
+        },
+        {
+          "name": "global",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  103,
+                  108,
+                  111,
+                  98,
+                  97,
+                  108
+                ]
+              }
+            ]
+          }
+        },
+        {
+          "name": "bet",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  98,
+                  101,
+                  116
+                ]
+              },
+              {
+                "kind": "arg",
+                "path": "id"
+              }
+            ]
+          }
+        },
+        {
+          "name": "clock",
+          "address": "SysvarC1ock11111111111111111111111111111111"
+        },
+        {
+          "name": "systemProgram",
+          "address": "11111111111111111111111111111111"
+        }
+      ],
+      "args": [
+        {
+          "name": "id",
+          "type": "u64"
+        },
+        {
+          "name": "side",
+          "type": "u64"
+        },
+        {
+          "name": "amount",
+          "type": "u64"
+        },
+        {
+          "name": "entryPrice",
+          "type": "u64"
+        }
+      ]
+    },
+    {
+      "name": "initialize",
+      "discriminator": [
+        0
+      ],
+      "accounts": [
+        {
+          "name": "admin",
+          "writable": true,
+          "signer": true
+        },
+        {
+          "name": "global",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  103,
+                  108,
+                  111,
+                  98,
+                  97,
+                  108
+                ]
+              }
+            ]
+          }
+        },
+        {
+          "name": "systemProgram",
+          "address": "11111111111111111111111111111111"
+        }
+      ],
+      "args": [
+        {
+          "name": "minAmount",
+          "type": "u64"
+        },
+        {
+          "name": "maxAmount",
+          "type": "u64"
+        },
+        {
+          "name": "multiplierBps",
+          "type": "u64"
+        },
+        {
+          "name": "expirySeconds",
+          "type": "i64"
+        }
+      ]
+    },
+    {
+      "name": "update",
+      "discriminator": [
+        3
+      ],
+      "accounts": [
+        {
+          "name": "admin",
+          "signer": true
+        },
+        {
+          "name": "global",
+          "writable": true,
+          "pda": {
+            "seeds": [
+              {
+                "kind": "const",
+                "value": [
+                  103,
+                  108,
+                  111,
+                  98,
+                  97,
+                  108
+                ]
+              }
+            ]
+          }
+        }
+      ],
+      "args": [
+        {
+          "name": "newRelayer",
+          "type": "pubkey"
+        },
+        {
+          "name": "minAmount",
+          "type": "u64"
+        },
+        {
+          "name": "maxAmount",
+          "type": "u64"
+        },
+        {
+          "name": "multiplierBps",
+          "type": "u64"
+        },
+        {
+          "name": "paused",
+          "type": "u64"
+        },
+        {
+          "name": "expirySeconds",
+          "type": "i64"
+        }
+      ]
+    }
+  ],
+  "accounts": [
+    {
+      "name": "bet",
+      "discriminator": [
+        147,
+        23,
+        35,
+        59,
+        15,
+        75,
+        155,
+        32
+      ]
+    },
+    {
+      "name": "global",
+      "discriminator": [
+        167,
+        232,
+        232,
+        177,
+        200,
+        108,
+        114,
+        127
+      ]
+    }
+  ],
+  "events": [
+    {
+      "name": "betClosed",
+      "discriminator": [
+        122,
+        20,
+        157,
+        254,
+        221,
+        0,
+        39,
+        129
+      ]
+    },
+    {
+      "name": "betCreated",
+      "discriminator": [
+        32,
+        153,
+        105,
+        71,
+        188,
+        72,
+        107,
+        114
+      ]
+    }
+  ],
+  "errors": [
+    {
+      "code": 6000,
+      "name": "paused",
+      "msg": "Operation is paused"
+    },
+    {
+      "code": 6001,
+      "name": "notAdmin",
+      "msg": "Only the admin can perform this action"
+    },
+    {
+      "code": 6002,
+      "name": "notRelayer",
+      "msg": "Only the relayer is allowed to close bets"
+    },
+    {
+      "code": 6003,
+      "name": "amountBelowMin",
+      "msg": "Amount below the allowed minimum"
+    },
+    {
+      "code": 6004,
+      "name": "amountAboveMax",
+      "msg": "Amount above the allowed maximum"
+    },
+    {
+      "code": 6005,
+      "name": "invalidSide",
+      "msg": "Invalid side value"
+    },
+    {
+      "code": 6006,
+      "name": "betAlreadyFinalized",
+      "msg": "Bet is already finalized"
+    },
+    {
+      "code": 6007,
+      "name": "notExpired",
+      "msg": "Bet cannot be closed before expiry"
+    },
+    {
+      "code": 6008,
+      "name": "betIdMismatch",
+      "msg": "Bet id mismatch"
+    },
+    {
+      "code": 6009,
+      "name": "insufficientVault",
+      "msg": "Payout exceeds vault solvency"
+    }
+  ],
+  "types": [
+    {
+      "name": "bet",
+      "serialization": "bytemuck",
+      "repr": {
+        "kind": "c"
+      },
+      "type": {
+        "kind": "struct",
+        "fields": [
+          {
+            "name": "amount",
+            "type": "u64"
+          },
+          {
+            "name": "betTime",
+            "type": "i64"
+          },
+          {
+            "name": "expireTime",
+            "type": "i64"
+          },
+          {
+            "name": "entryPrice",
+            "type": "u64"
+          },
+          {
+            "name": "exitPrice",
+            "type": "u64"
+          },
+          {
+            "name": "side",
+            "type": "u64"
+          },
+          {
+            "name": "status",
+            "type": "u64"
+          },
+          {
+            "name": "bettor",
+            "type": "pubkey"
+          }
+        ]
+      }
+    },
+    {
+      "name": "betClosed",
+      "type": {
+        "kind": "struct",
+        "fields": [
+          {
+            "name": "bet",
+            "type": "pubkey"
+          },
+          {
+            "name": "exitPrice",
+            "type": "u64"
+          },
+          {
+            "name": "userWon",
+            "type": "bool"
+          },
+          {
+            "name": "payout",
+            "type": "u64"
+          },
+          {
+            "name": "status",
+            "type": "u64"
+          }
+        ]
+      }
+    },
+    {
+      "name": "betCreated",
+      "type": {
+        "kind": "struct",
+        "fields": [
+          {
+            "name": "bet",
+            "type": "pubkey"
+          },
+          {
+            "name": "bettor",
+            "type": "pubkey"
+          },
+          {
+            "name": "side",
+            "type": "u64"
+          },
+          {
+            "name": "amount",
+            "type": "u64"
+          },
+          {
+            "name": "betTime",
+            "type": "i64"
+          },
+          {
+            "name": "expireTime",
+            "type": "i64"
+          },
+          {
+            "name": "entryPrice",
+            "type": "u64"
+          }
+        ]
+      }
+    },
+    {
+      "name": "global",
+      "serialization": "bytemuck",
+      "repr": {
+        "kind": "c"
+      },
+      "type": {
+        "kind": "struct",
+        "fields": [
+          {
+            "name": "counter",
+            "type": "u64"
+          },
+          {
+            "name": "minAmount",
+            "type": "u64"
+          },
+          {
+            "name": "maxAmount",
+            "type": "u64"
+          },
+          {
+            "name": "multiplierBps",
+            "type": "u64"
+          },
+          {
+            "name": "expirySeconds",
+            "type": "i64"
+          },
+          {
+            "name": "paused",
+            "type": "u64"
+          },
+          {
+            "name": "admin",
+            "type": "pubkey"
+          },
+          {
+            "name": "relayer",
+            "type": "pubkey"
+          }
+        ]
+      }
+    }
+  ],
+  "constants": [
+    {
+      "name": "betSeed",
+      "type": "bytes",
+      "value": "[98, 101, 116]"
+    },
+    {
+      "name": "globalSeed",
+      "type": "bytes",
+      "value": "[103, 108, 111, 98, 97, 108]"
+    }
+  ]
+};
diff --git a/smart-updown/relayer/package.json b/smart-updown/relayer/package.json
new file mode 100644
index 0000000..a06805b
--- /dev/null
+++ b/smart-updown/relayer/package.json
@@ -0,0 +1,23 @@
+{
+  "name": "smart-updown-relayer",
+  "version": "0.1.0",
+  "private": true,
+  "license": "ISC",
+  "scripts": {
+    "typecheck": "tsc -p tsconfig.json --noEmit",
+    "init": "ts-node src/index.ts --init --once",
+    "run": "ts-node src/index.ts --once",
+    "loop": "ts-node src/index.ts"
+  },
+  "dependencies": {
+    "@anchor-lang/core": "^1.0.0",
+    "@solana/web3.js": "^1.98.0",
+    "bn.js": "^5.2.0"
+  },
+  "devDependencies": {
+    "@types/bn.js": "^5.2.0",
+    "@types/node": "^25.0.0",
+    "ts-node": "^10.9.2",
+    "typescript": "^5.9.3"
+  }
+}
diff --git a/smart-updown/relayer/src/config.ts b/smart-updown/relayer/src/config.ts
new file mode 100644
index 0000000..f536ae1
--- /dev/null
+++ b/smart-updown/relayer/src/config.ts
@@ -0,0 +1,65 @@
+import { Connection, clusterApiUrl, Keypair, PublicKey } from "@solana/web3.js";
+import * as fs from "fs";
+import * as os from "os";
+import * as path from "path";
+
+export const SIDE_UP = 0;
+export const SIDE_DOWN = 1;
+
+/**
+ * Runtime configuration. Everything can be overridden via environment
+ * variables; defaults target the local validator.
+ */
+export interface Config {
+  /** RPC endpoint of the cluster (localnet by default). */
+  rpcUrl: string;
+  /** Localnet allows naive airdrops (to bettors and the house vault). */
+  allowAirdrop: boolean;
+  /** Program id. Defaults to the value embedded in the IDL. */
+  programId: PublicKey;
+  /** House admin/relayer keypair file path. */
+  adminKeypairPath: string;
+  /** Initial parameters used by `init` (must match on-chain constants). */
+  minAmountLamports: number;
+  maxAmountLamports: number;
+  multiplierBps: number;
+  expirySeconds: number;
+}
+
+function env(name: string, fallback: string): string {
+  return process.env[name] ?? fallback;
+}
+
+function envNum(name: string, fallback: number): number {
+  const raw = process.env[name];
+  if (!raw) return fallback;
+  const n = Number(raw);
+  if (!Number.isFinite(n)) throw new Error(`Invalid number for env ${name}: ${raw}`);
+  return n;
+}
+
+export function loadConfig(): Config {
+  const rpcUrl = env("SMART_RPC_URL", "http://127.0.0.1:8899");
+  const allowAirdrop = env("SMART_ALLOW_AIRDROP", "1") === "1";
+  const adminKeypairPath =
+    env("SMART_ADMIN_KEYPAIR", path.join(os.homedir(), ".config/solana/id.json"));
+
+  return {
+    rpcUrl,
+    allowAirdrop,
+    programId: PublicKey.default, // placeholder; real value read from the IDL below
+    adminKeypairPath,
+    minAmountLamports: envNum("SMART_MIN_AMOUNT", 100_000_000), // 0.1 SOL
+    maxAmountLamports: envNum("SMART_MAX_AMOUNT", 10_000_000_000), // 10 SOL
+    multiplierBps: envNum("SMART_MULTIPLIER_BPS", 13_000), // 1.3x
+    expirySeconds: envNum("SMART_EXPIRY_SECONDS", 15),
+  };
+}
+
+export function loadKeypair(pathOrJson: string): Keypair {
+  const resolved = pathOrJson.startsWith("~")
+    ? path.join(os.homedir(), pathOrJson.slice(1))
+    : path.resolve(pathOrJson);
+  const raw = fs.readFileSync(resolved, "utf8");
+  return Keypair.fromSecretKey(Uint8Array.from(JSON.parse(raw)));
+}
diff --git a/smart-updown/relayer/src/frontStub.ts b/smart-updown/relayer/src/frontStub.ts
new file mode 100644
index 0000000..b511219
--- /dev/null
+++ b/smart-updown/relayer/src/frontStub.ts
@@ -0,0 +1,24 @@
+import { Keypair } from "@solana/web3.js";
+import { SIDE_DOWN, SIDE_UP } from "./config";
+
+/**
+ * STUB — «фронт»: от пользователя приходят параметры ставки.
+ *
+ * В реальной системе это сообщение присылает фронтенд (или твоя БД) после
+ * того, как пользователь выбрал направление и сумму. Здесь мы эмулируем
+ * входящую очередь: случайный UP/DOWN и случайную сумму в заданном диапазоне.
+ */
+export interface BetRequest {
+  bettor: Keypair;
+  side: number; // SIDE_UP | SIDE_DOWN
+  amountLamports: number;
+}
+
+/** Очередь входящих ставок. В заглушке наполняем случайными значениями. */
+export function nextBetRequest(minAmount: number, maxAmount: number): BetRequest {
+  const bettor = Keypair.generate();
+  const side = Math.random() < 0.5 ? SIDE_UP : SIDE_DOWN;
+  const amount =
+    minAmount + Math.floor(Math.random() * (maxAmount - minAmount + 1));
+  return { bettor, side, amountLamports: amount };
+}
diff --git a/smart-updown/relayer/src/index.ts b/smart-updown/relayer/src/index.ts
new file mode 100644
index 0000000..59fc019
--- /dev/null
+++ b/smart-updown/relayer/src/index.ts
@@ -0,0 +1,136 @@
+import { LAMPORTS_PER_SOL, PublicKey } from "@solana/web3.js";
+import { Program } from "@anchor-lang/core";
+import { loadConfig, loadKeypair, SIDE_UP } from "./config";
+import { getPrice } from "./priceSource";
+import { nextBetRequest } from "./frontStub";
+import {
+  initialize,
+  createBet,
+  closeBet,
+  readGlobal,
+  ensureVaultFunded,
+} from "./ops";
+import { betPda } from "./pda";
+import { makeConnection, makeProgram } from "./program";
+
+import type { SmartUpdown } from "../idl/smart_updown";
+
+const LAMPORTS_PER_SOL_NUM = Number(LAMPORTS_PER_SOL);
+
+const sleep = (ms: number) => new Promise((r) => setTimeout(r, ms));
+
+const STATUS_OPEN = 0;
+async function fundBettor(connection: any, bettorPubkey: PublicKey): Promise<void> {
+  const bal = await connection.getBalance(bettorPubkey);
+  if (bal < 2 * LAMPORTS_PER_SOL_NUM) {
+    await connection.requestAirdrop(bettorPubkey, 5 * LAMPORTS_PER_SOL_NUM);
+    await sleep(800);
+    console.log(`bettor funded ${bettorPubkey.toBase58()} (+5 SOL)`);
+  }
+}
+
+/** Закрывает ставку, повторяя при «equal price» (exit==entry) пока не зафиналится. */
+async function settleBet(
+  program: Program<SmartUpdown>,
+  id: any,
+  entryPrice: number,
+  relayer: any,
+  bettor: PublicKey
+): Promise<void> {
+  for (let attempt = 1; ; attempt++) {
+    const exitPrice = await getPrice();
+    if (exitPrice === entryPrice) {
+      console.log(`attempt ${attempt}: exit==entry (${exitPrice}), жду движение...`);
+      await sleep(2000);
+      continue;
+    }
+    const sig = await closeBet(program, id, exitPrice, relayer, bettor);
+    console.log(`close_bet #${id} exit=${exitPrice} (attempt ${attempt}) tx=${sig}`);
+
+    const status = await getStatus(program, id);
+    if (status === STATUS_OPEN) {
+      console.log(`ставка ещё open (equal price), повторяю close...`);
+      await sleep(2000);
+      continue;
+    }
+    return;
+  }
+}
+
+async function getStatus(program: Program<SmartUpdown>, id: any): Promise<number> {
+  const bet = await program.account.bet.fetchNullable(betPda(program.programId, id));
+  return bet ? bet.status.toNumber() : -1;
+}
+
+async function main(): Promise<void> {
+  const cfg = loadConfig();
+  const admin = loadKeypair(cfg.adminKeypairPath);
+  const connection = makeConnection(cfg.rpcUrl);
+  const program = makeProgram(connection, admin);
+
+  console.log(`RPC: ${cfg.rpcUrl}`);
+  console.log(`Admin/relayer: ${admin.publicKey.toBase58()}`);
+
+  const global = await readGlobal(program, program.programId);
+  if (!global) {
+    if (!process.argv.includes("--init")) {
+      throw new Error(
+        "Контракт не инициализирован. Запусти с флагом --init (или init+run)."
+      );
+    }
+    await initialize(program, {
+      minAmount: cfg.minAmountLamports,
+      maxAmount: cfg.maxAmountLamports,
+      multiplierBps: cfg.multiplierBps,
+      expirySeconds: cfg.expirySeconds,
+    }, admin);
+    console.log("Контракт инициализирован.");
+  } else {
+    console.log(
+      `Global: counter=${global.counter} vault=${(global.lamports / LAMPORTS_PER_SOL_NUM).toFixed(2)} SOL ` +
+        `expiry=${global.expirySeconds}s paused=${global.paused}`
+    );
+  }
+
+  if (cfg.allowAirdrop) {
+    await ensureVaultFunded(connection, program, 10 * LAMPORTS_PER_SOL_NUM);
+  }
+
+  const loops = process.argv.includes("--once") ? 1 : Infinity;
+  let n = 0;
+
+  while (n < loops) {
+    n++;
+    const req = nextBetRequest(cfg.minAmountLamports, cfg.maxAmountLamports);
+    await fundBettor(connection, req.bettor.publicKey);
+
+    const entryPrice = await getPrice();
+    await createBet(program, req.bettor, {
+      side: req.side,
+      amount: req.amountLamports,
+      entryPrice,
+    });
+
+    console.log(
+      `ставка ${req.side === SIDE_UP ? "UP" : "DOWN"} на ${(req.amountLamports / LAMPORTS_PER_SOL_NUM).toFixed(3)} SOL, жду ${cfg.expirySeconds}s...`
+    );
+    await sleep((cfg.expirySeconds + 1) * 1000);
+
+    const g0 = await readGlobal(program, program.programId);
+    const id = g0!.counter.subn(1);
+    await settleBet(program, id, entryPrice, admin, req.bettor.publicKey);
+
+    const outcome = await program.account.bet.fetchNullable(betPda(program.programId, id));
+    console.log(
+      outcome!.status.toNumber() === 1
+        ? `>> результат #${id}: ПОЛЬЗОВАТЕЛЬ ВЫИГРАЛ (payout 1.3x)`
+        : `>> результат #${id}: ВЫИГРАЛ ДОМ (user lost)`
+    );
+  }
+  console.log("Готово.");
+}
+
+main().catch((e) => {
+  console.error(e);
+  process.exit(1);
+});
diff --git a/smart-updown/relayer/src/ops.ts b/smart-updown/relayer/src/ops.ts
new file mode 100644
index 0000000..3660f3e
--- /dev/null
+++ b/smart-updown/relayer/src/ops.ts
@@ -0,0 +1,131 @@
+import { Connection, Keypair, LAMPORTS_PER_SOL, PublicKey } from "@solana/web3.js";
+import BN from "bn.js";
+import { Program } from "@anchor-lang/core";
+import { SIDE_UP } from "./config";
+import { globalPda } from "./pda";
+
+import type { SmartUpdown } from "../idl/smart_updown";
+
+const LAMPORTS_PER_SOL_NUM = Number(LAMPORTS_PER_SOL);
+
+/** Считывает account Global (ваулт). Возвращает null, если ещё не инициализирован. */
+export async function readGlobal(
+  program: Program<SmartUpdown>,
+  programId: PublicKey
+): Promise<{
+  counter: BN;
+  minAmount: BN;
+  maxAmount: BN;
+  multiplierBps: BN;
+  expirySeconds: BN;
+  paused: BN;
+  admin: PublicKey;
+  relayer: PublicKey;
+  lamports: number;
+} | null> {
+  const global = globalPda(programId);
+  const raw = await program.account.global.fetchNullable(global);
+  if (!raw) return null;
+  const lamports = await program.provider.connection.getBalance(global);
+  return {
+    counter: raw.counter,
+    minAmount: raw.minAmount,
+    maxAmount: raw.maxAmount,
+    multiplierBps: raw.multiplierBps,
+    expirySeconds: raw.expirySeconds,
+    paused: raw.paused,
+    admin: raw.admin,
+    relayer: raw.relayer,
+    lamports,
+  };
+}
+
+/** Одноразовая инициализация контракта (вызывается admin'ом до приёма ставок). */
+export async function initialize(
+  program: Program<SmartUpdown>,
+  args: {
+    minAmount: number;
+    maxAmount: number;
+    multiplierBps: number;
+    expirySeconds: number;
+  },
+  admin: Keypair
+): Promise<string> {
+  const sig = await program.methods
+    .initialize(
+      new BN(args.minAmount),
+      new BN(args.maxAmount),
+      new BN(args.multiplierBps),
+      new BN(args.expirySeconds)
+    )
+    .accounts({
+      admin: admin.publicKey,
+    })
+    .signers([admin])
+    .rpc();
+  return sig;
+}
+
+/** Создаёт ставку от имени пользователя. Возвращает фактический id (== counter). */
+export async function createBet(
+  program: Program<SmartUpdown>,
+  bettor: Keypair,
+  args: { side: number; amount: number; entryPrice: number }
+): Promise<BN> {
+  const global = await readGlobal(program, program.programId);
+  if (!global) throw new Error("Contract not initialized");
+  const id = global.counter;
+
+  const sig = await program.methods
+    .createBet(new BN(id), new BN(args.side), new BN(args.amount), new BN(args.entryPrice))
+    .accounts({
+      bettor: bettor.publicKey,
+    })
+    .signers([bettor])
+    .rpc();
+
+  console.log(`create_bet #${id} side=${args.side === SIDE_UP ? "UP" : "DOWN"} ` +
+    `amount=${(args.amount / LAMPORTS_PER_SOL_NUM).toFixed(3)} SOL entry=${args.entryPrice} tx=${sig}`);
+  return id;
+}
+
+/**
+ * Закрывает ставку после экспирации.
+ * Если exit_price == entry_price, контракт не финализирует ставку — тогда
+ * ждём первое движение цены и повторяем close (см. обработку в main loop).
+ */
+export async function closeBet(
+  program: Program<SmartUpdown>,
+  id: BN,
+  exitPrice: number,
+  relayer: Keypair,
+  bettor: PublicKey
+): Promise<string> {
+  return program.methods
+    .closeBet(new BN(id), new BN(exitPrice))
+    .accounts({
+      relayer: relayer.publicKey,
+      bettor,
+    })
+    .signers([relayer])
+    .rpc();
+}
+
+/**
+ * Догружает ваулт (house bankroll), чтобы хватило на выплаты 1.3x.
+ * На localnet используем airDrop на PDA ваулта; на mainnet воздух не накапает —
+ * там нужно переводить SOL с админа (off-chain, вне этого CLI).
+ */
+export async function ensureVaultFunded(
+  connection: Connection,
+  program: Program<SmartUpdown>,
+  amountLamports: number
+): Promise<void> {
+  const global = globalPda(program.programId);
+  const current = await connection.getBalance(global);
+  const needed = amountLamports; // будущая выплата (до 1.3x), запасаем с запасом
+  if (current >= needed) return;
+  const topUp = needed - current + 5 * LAMPORTS_PER_SOL_NUM; // +5 SOL запаса
+  await connection.requestAirdrop(global, topUp);
+  console.log(`vault funded +${(topUp / LAMPORTS_PER_SOL_NUM).toFixed(2)} SOL`);
+}
diff --git a/smart-updown/relayer/src/pda.ts b/smart-updown/relayer/src/pda.ts
new file mode 100644
index 0000000..06dcce3
--- /dev/null
+++ b/smart-updown/relayer/src/pda.ts
@@ -0,0 +1,16 @@
+import { PublicKey } from "@solana/web3.js";
+import BN from "bn.js";
+
+/** Seeds, согласованные с контрактом (см. constants.rs). */
+export const GLOBAL_SEED = Buffer.from("global");
+export const BET_SEED = Buffer.from("bet");
+
+export function globalPda(programId: PublicKey): PublicKey {
+  return PublicKey.findProgramAddressSync([GLOBAL_SEED], programId)[0];
+}
+
+export function betPda(programId: PublicKey, id: BN): PublicKey {
+  const idLE = Buffer.alloc(8);
+  idLE.writeBigUInt64LE(BigInt(id.toString(10)));
+  return PublicKey.findProgramAddressSync([BET_SEED, idLE], programId)[0];
+}
diff --git a/smart-updown/relayer/src/priceSource.ts b/smart-updown/relayer/src/priceSource.ts
new file mode 100644
index 0000000..3a5b007
--- /dev/null
+++ b/smart-updown/relayer/src/priceSource.ts
@@ -0,0 +1,22 @@
+/**
+ * STUB — SOL price source.
+ *
+ * TODO(пользователь): замени `getPrice` на реальный запрос к своей БД.
+ * Договоримся, что функция возвращает цену SOL как целое число в «центах»
+ * (то же юнит-пространство, что у веса entry/exit на контракте). Контракт
+ * сравнивает тол ько «больше/меньше/равно», поэтому само юнит-пространство
+ * не критично — главное, чтобы оно было согласовано между entry и exit.
+ */
+let simulated = 100_000_000;
+
+/** Цена SOL сейчас (заглушка — детерминированно «гуляет»). */
+export async function getPrice(): Promise<number> {
+  const drift = Math.round(Math.random() * 200_000); // ±0.2% движка
+  simulated += Math.random() < 0.5 ? drift : -drift;
+  return simulated;
+}
+
+/** Управляемая заглушка: вернуть ровно `value` (полезна для теста «equal price»). */
+export function setPriceOverride(value: number | undefined): void {
+  simulated = value ?? 100_000_000;
+}
diff --git a/smart-updown/relayer/src/program.ts b/smart-updown/relayer/src/program.ts
new file mode 100644
index 0000000..0f82f4d
--- /dev/null
+++ b/smart-updown/relayer/src/program.ts
@@ -0,0 +1,27 @@
+import { Connection } from "@solana/web3.js";
+import { AnchorProvider, Program, Wallet } from "@anchor-lang/core";
+import { Keypair } from "@solana/web3.js";
+import idl from "../idl/smart_updown.json";
+
+import type { SmartUpdown } from "../idl/smart_updown";
+
+/**
+ * Создаёт готовый клиент программы: Connection + AnchorProvider (подпись админа-
+ * релеера) + типизированный Program, собранный из IDL.
+ */
+export function makeProgram(
+  connection: Connection,
+  admin: Keypair
+): Program<SmartUpdown> {
+  const provider = new AnchorProvider(
+    connection,
+    new Wallet(admin),
+    { commitment: "confirmed", preflightCommitment: "confirmed" }
+  );
+  // IDL.address задаёт programId в рантайме.
+  return new Program<SmartUpdown>(idl as unknown as SmartUpdown, provider);
+}
+
+export function makeConnection(rpcUrl: string): Connection {
+  return new Connection(rpcUrl, "confirmed");
+}
diff --git a/smart-updown/relayer/tsconfig.json b/smart-updown/relayer/tsconfig.json
new file mode 100644
index 0000000..acc1fad
--- /dev/null
+++ b/smart-updown/relayer/tsconfig.json
@@ -0,0 +1,14 @@
+{
+  "compilerOptions": {
+    "lib": ["es2020"],
+    "module": "commonjs",
+    "target": "es2020",
+    "esModuleInterop": true,
+    "moduleResolution": "node",
+    "resolveJsonModule": true,
+    "strict": true,
+    "skipLibCheck": true,
+    "outDir": "dist"
+  },
+  "include": ["src/**/*", "idl/**/*"]
+}