Chess

Implementation of a chess engine based on Minimax with Alpha Beta Pruning.

Description

This is a chess engine implementation in Go that uses the Minimax algorithm with Alpha-Beta pruning for move calculation. It includes both a command-line interface and a web server component.

Prerequisites

• Go 1.23.2 or higher
• notnil/chess package

Installation

1. Clone the repository:

git clone <repository-url>
cd chess-engine

2. Install dependencies:

go mod download

Usage

Command Line Interface

Run the engine with a specific FEN position:

go run main.go "your-fen-string"

If no FEN string is provided, it will use a default position.

Web Server

The engine also provides a web server interface that runs on port 2828.

1. Start the server:

go run main.go

2. Available endpoints:

• GET / - Basic health check
• POST /info - Calculate best move for a given position

  {
    "depth": 5,
    "fen": "your-fen-string"
  }

• POST /analysis - Analyze chess positions (WIP)

Environment Variables

• DEBUG: Set to any value to enable debug output

Features

• Minimax algorithm with Alpha-Beta pruning
• Iterative Deepening Search (IDS)
• Position evaluation using piece values and piece-square tables
• Web API for move calculation
• Support for FEN position input

Project Structure

• main.go - Entry point
• engine/ - Core chess engine implementation
• controller/ - Web server and API handlers
• test/ - Test utilities