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Checkers — Rules & Docs

Everything you need to know about the game, the challenging bot, winning, claiming, and verifying SOL rewards.

1. The game

Game 2 is standard American checkers played on an 8×8 board. You play the red pieces and the server-controlled bot plays black. Red moves first.

2. How to play

• Click a red piece, then click one of its highlighted legal destination squares.
• Pieces move diagonally forward one square.
• Captures jump diagonally over an opposing piece into an empty square.
• If any capture is available, a capture is mandatory.
• If a capture creates another capture with the same piece, the jump sequence continues until no further capture is available.
• A piece that reaches the opposite back rank becomes a king and can move and capture in both directions.

3. Challenging bot

The opponent is not a random-move bot. Its decisions are calculated server-side with alpha-beta minimax search, material and positional evaluation, mandatory-capture logic, and capture extensions. It is deliberately tuned to be difficult to beat while keeping games responsive.

4. What counts as a win

• You must eliminate the bot's pieces or leave the bot with no legal move.
• The server validates every move and controls the board state.
• A browser-side board or fake win cannot unlock a claim.
• At least 30 seconds must have passed since the game started before a verified win can be claimed.

5. The reward formula

reward = floor(reward wallet SOL balance / 30)

Checkers pays 1/30 of the reward wallet's SOL balance at the moment the claim is processed. Example: if the wallet has 3 SOL, the nominal reward is 0.1 SOL. The next payout is calculated from the new on-chain balance.

6. Where rewards come from

The reward wallet is funded by the project's creator-fee revenue. If the wallet balance is low or incoming fees stop, rewards become smaller. Rewards are not guaranteed independently of the wallet balance.

7. How to claim

• Finish a verified winning game.
• Wait until the 30-second minimum play period has passed.
• Enter a valid Solana wallet address.
• The server validates the win and sends the SOL payout on-chain.

8. Anti-abuse rules

• Each game can be claimed only once.
• A wallet is limited to one claim per 24 hours.
• Claim and game-start requests are rate-limited.
• The server is authoritative for moves, wins, timing, and payouts.
• Payouts are serialized so simultaneous claims cannot spend the same reward balance twice.

9. On-chain verification

Every successful reward is a normal SOL transfer from the reward wallet. The game provides a transaction link after payout so the amount, sender, recipient, and transaction status can be checked independently on a block explorer.

10. Reward wallet

The same project reward wallet used by the arcade's other games funds Checkers. Checkers uses a 1/30 divisor rather than 1/10.

11. Important limitations

• This is an experimental rewards game.
• Reward size depends on the reward wallet balance.
• Network conditions and wallet balance can affect payout timing and amount.
• This documentation describes game mechanics and is not financial advice or a promise of investment returns.

12. Security

The payout signing key remains server-side and is never exposed through the game interface. The browser submits moves and claim requests, but the Checkers server is the authority that validates them.