Command Line Chess

This library provides all the rules of the chess game. Also it provides a command line interface with serialization features

Features:

• You can make all the legal moves, including:
  • Castling
  • En passant
  • Pawn promotion
• The game detects and declares:
  • Check
  • Checkmate
  • Stalemate
• You can quit and save the game at almost every moment

How to install

To install the game, simply type:

gem install chess_engine

Then you can try it with chess_engine command

How to use the library

Game is created with:

game = ChessEngine::Game.new

Then you can do something like this:

game.move("e2e4")
# or
game.castling(:long)

You can find the full example of using this library in the ChessEngine::CLI#play method in lib/chess_engine/cli.rb

How to play the CL game

• Start the command line game using chess_engine command
• Trivial moves are made by typing in something like "e2e4" or e3 f5 or even a 1 b 3 (whitespace doesn't matter)
• Short castling is done by typing in 00, oo or OO
• Long castling is done by typing in 000, ooo or OOO
• To quit the game, type in "exit". You will be asked to save the game