A live, mainnet, zero-risk, free-to-play, multi-contract chess protocol running on Stacks where:

• STX = gas only • CHESS token = game economy • Funds are isolated • Logic is modular • Everything is extensible

This is your FULL MASTER SMART CONTRACT ARCHITECTURE (Mainnet + Free Economy Model) ♟️

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🧠 SYSTEM OVERVIEW

                          ┌────────────────────┐
                          │   router.clar      │
                          │   (entry point)    │
                          └─────────┬──────────┘
                                    │
        ┌───────────────────────────┼────────────────────────────┐
        ▼                           ▼                            ▼
 ┌───────────────┐           ┌───────────────┐            ┌───────────────┐
 │ registry.clar │           │ escrow.clar   │            │ logic.clar    │
 │ game storage  │           │ token vault   │            │ move engine   │
 └──────┬────────┘           └──────┬────────┘            └──────┬────────┘
        │                            │                           │
        ▼                            ▼                           ▼
 ┌───────────────┐           ┌───────────────┐            ┌───────────────┐
 │ timer.clar    │           │ chess-token   │            │ ranking.clar  │
 │ timeout sys   │           │ SIP-010 FT    │            │ elo stats     │
 └───────────────┘           └───────────────┘            └───────────────┘

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🔥 ECONOMIC MODEL

Layer 1 — STX

Used only for: • Gas fees • Deployment

Never used for wagers.

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Layer 2 — CHESS Token (SIP-010)

Free in-game currency.

Used for: • Wagers • Rewards • Tournament pools • Ranking incentives

Minted freely during testing.

Zero financial risk.

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📦 CONTRACT BREAKDOWN

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1️⃣ chess-token.clar (SIP-010 Fungible Token)

This is the economic fuel.

Responsibilities

• Mint tokens • Transfer tokens • Faucet function (optional) • Supply control

Storage

total-supply
owner
mint-enabled

Token Properties

Name: Chess Token
Symbol: CHESS
Decimals: 6

Security Model

During dev:

mint-enabled = true

Production:

mint-enabled = false

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2️⃣ escrow.clar (Token Vault)

This is the treasury chamber.

⚠️ It NEVER holds STX.

Only CHESS tokens.

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Responsibilities

• Lock wager tokens • Release tokens to winner • Refund tokens • Prevent double withdrawal

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Storage

game-id → {
   white-amount: uint
   black-amount: uint
   total: uint
   claimed: bool
}

---

Interaction

Uses:

ft-transfer?

Not:

stx-transfer?

This isolates real value risk.

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3️⃣ registry.clar (Game State Authority)

This is the canonical source of truth.

---

Responsibilities

• Create game • Assign players • Track status • Track whose turn • Track move count • Mark finished

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Storage Model

game-id → {
   white: principal
   black: optional principal
   wager: uint
   status: uint
   turn: principal
   move-count: uint
   created-at: uint
   last-move-at: uint
}

---

Status Enum

0 = waiting
1 = active
2 = finished
3 = cancelled

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4️⃣ logic.clar (Move Engine)

The referee.

It does NOT validate chess rules.

Frontend validates legality.

On-chain logic enforces:

• Turn order • Move recording • Move counter • Resignation

---

Storage

(game-id, move-number) → {
   player: principal
   move: string-ascii
   timestamp: uint
}

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5️⃣ timer.clar (Timeout Authority)

Prevents griefing.

---

Responsibilities

• Validate inactivity • Allow timeout claim • Reset move timer

---

Storage

game-id → {
   timeout-duration: uint
}

Timeout logic uses:

block-height

for deterministic timing.

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6️⃣ ranking.clar (Reputation Layer)

Optional but powerful.

Tracks:

• Wins • Losses • Draws • Elo score

---

Storage

player → {
   wins: uint
   losses: uint
   rating: uint
}

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7️⃣ router.clar (Master Orchestrator)

The only contract the frontend calls.

It coordinates everything.

It does NOT store state.

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🧭 FULL GAME LIFECYCLE FLOW

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🎮 CREATE GAME

User → router.create-game
        → escrow.lock-tokens
        → registry.create-game
        → timer.initialize

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♟️ JOIN GAME

User → router.join-game
        → escrow.lock-tokens
        → registry.assign-black
        → registry.activate

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🔁 SUBMIT MOVE

User → router.submit-move
        → logic.record-move
        → registry.update-turn
        → timer.reset

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🏳 RESIGN

User → router.resign
        → logic.record-resignation
        → escrow.release
        → registry.finish
        → ranking.update

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⏳ TIMEOUT WIN

User → router.claim-timeout
        → timer.validate
        → escrow.release
        → registry.finish
        → ranking.update

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🔐 SECURITY BOUNDARIES

escrow: • Cannot change game state

Registry: • Cannot release funds

Logic: • Cannot access funds

Router: • Cannot bypass validation

Token: • Cannot interfere with game logic

Each contract has single responsibility.

This prevents catastrophic exploits.

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🧱 DEPLOYMENT ORDER

Deploy in this order:

1 chess-token.clar
2 escrow.clar
3 registry.clar
4 logic.clar
5 timer.clar
6 ranking.clar
7 router.clar

Router last because it references others.

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🧪 MAINNET TESTING MODEL

Because token is free:

• Mint unlimited CHESS • Wager fake tokens • Only pay STX gas • Real blockchain execution • Real contract addresses • Real indexing

Financial risk = zero.

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🚀 FUTURE EXTENSIONS

This architecture supports:

• Tournament contract • DAO governance • Betting pools • Spectator rewards • NFT match certificates • ChessFi staking • Leaderboard mining rewards

All without touching escrow core.

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🏗 SYSTEM CHARACTERISTICS

Your protocol becomes:

• Live mainnet • Free-to-play • Fully on-chain • Modular • Upgradeable via new versions • Economically isolated • Production scalable

This is not a demo.

This is infrastructure.

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