📝 Chess Game Description Using Express.js, Node.js, Socket.IO, and chess.js 🎮 Overview This is a real-time multiplayer Chess game where two users can connect to the same game room and play against each other. The application uses Node.js with Express.js for the backend server, Socket.IO for real-time communication between players, and chess.js for managing the game logic and enforcing the rules of chess.

🧱 Tech Stack Node.js: Backend runtime environment.

Express.js: Web framework for handling HTTP requests and serving HTML/CSS/JS files.

Socket.IO: Enables real-time, bidirectional communication between clients and server.

chess.js: JavaScript chess library that manages the rules of the game, piece movement, check/checkmate logic, etc.

(Optional) chessboard.js: For rendering the board on the frontend visually.

🔗 Architecture and Workflow Server Setup (Node.js + Express.js):

Hosts static files (HTML, CSS, JS).

Initializes a WebSocket server using Socket.IO.

Manages game rooms and player connections.

Game Logic (chess.js):

A new Chess instance is created per room to track the game state.

Validates moves (legal, in turn, etc.).

Determines check, checkmate, stalemate conditions.

Real-time Communication (Socket.IO):

When a player joins a game, they are assigned a color (white or black).

When a player makes a move, it’s validated using chess.js and then broadcast to the opponent.

Handles events like:

Player joining

Player move

Game over

Player disconnect

Frontend (HTML/JS + Socket.IO-client):

Displays the board.

Allows drag-and-drop or click-based piece movement.

Listens to and emits Socket.IO events.

Updates UI when opponent moves or the game ends.

⚙️ Core Features Two-player online chess.

Real-time move synchronization.

Turn-based control (white and black).

Game rule enforcement (using chess.js).

Check/checkmate detection.

Automatic disconnection handling.