code-chess

Chess engine for developers. Pieces are services, board is architecture, checkmate is prod outage, castling is failover.

Usage

const { Board, PIECE_TYPES } = require('./src/chess');

const board = new Board();
console.log(board.render());

// Make moves
board.makeMove(6, 4, 4, 4); // e2-e4 (pawn/microservice advances)
board.makeMove(0, 6, 2, 5); // Ng8-f6 (knight/worker deploys)

// AI plays itself
while (!board.gameOver && board.moveHistory.length < 50) {
  board.aiMove(board.turn);
}

console.log(board.render());
console.log(board.status());
console.log('FEN:', board.toFEN());

Piece Mapping

• King (Core Service) — value 1000, lose it and the game is over
• Queen (Database) — value 9, most powerful, handles everything
• Rook (Cache Layer) — value 5, straight-line scaling
• Bishop (Message Queue) — value 3, diagonal/async routing
• Knight (Worker Process) — value 3, jumps over everything, background jobs
• Pawn (Microservice) — value 1, can promote (scale up) at end of board

Features

• Full legal move validation for all 6 piece types
• Pawn promotion (microservice scales to full service)
• King capture = game over (prod outage)
• Simple AI (capture-priority with random tiebreak)
• FEN notation export (infra state snapshot)
• ASCII board with coordinate labels
• Move history (deploy log)
• Check detection