A JavaScript chess logic library implemented from scratch in pure JavaScript.It was Written in Java, but it Further Converted Into JavaScript So That It can Be Used In Web Application And App. It Supports all standard moves including En Passant, Check, Checkmate, and Stalemate.

📦 Installation npm install chessmate

🔧 Usage javascript import { Chessboard } from 'chessmate';

const board = new Chessboard();

board.printBoard();

// En Passant Example board.movePiece(6, 0, 4, 0); // White pawn 2-step board.movePiece(1, 5, 3, 5); // Black pawn 2-step board.movePiece(4, 0, 3, 0); // White pawn 1-step board.movePiece(1, 1, 3, 1); // Black pawn 2-step board.movePiece(3, 0, 2, 1); // En Passant by white board.movePiece(6, 1, 4, 1); // White pawn normal move

board.printBoard();

♟ Features Fully functional chess logic

Support for:

Pawn promotion

En Passant

Check and Checkmate detection

Stalemate and Draw

Easy-to-use API

No external dependencies

📁 File Structure chessmate/ ├── chess/ │ ├── Bishop.js │ ├── King.js │ ├── Knight.js │ ├── Pawn.js │ ├── Queen.js │ ├── Rook.js │ └── Game.js ├── Chessboard.js └── index.js

🔄 Future Improvements Add castling support Add Draw Game Support Board State Tracking Undo Redo Moves PGN parsing & move history

👨‍💻 Author Aman Kumar