Chess 3.0

UCI Protocol

The user interface has been replaced with the Universal Chess Interface protocol. This allows the engine to communicate with chess GUIs for a more streamlined and user friendly experience.

What's Changed

• Transposition table to store already searched positions
• Move ordering with PV move, killer moves, and MVV/LVA
• Quiescence search to mitigate horizon effect
• Compiler intrinsics for increased speed
• Repetition detection
• Makefile

Full Changelog: v2.0...v3.0

Chess 2.0

What's Changed

• Bitboard representation
• Piece attacks are indexed using a perfect hashing algorithm for fast lookup
• Move generation is over 11 times faster at 58 million nodes per second
• Improved position evaluation using weights of middlegame and endgame values
• Time control

Full Changelog: v1.0...v2.0

Chess 1.0

What's Changed

• 0x88 board
• Basic chess and piece move functionality
• Simple piece evaluation
• Alpha-beta pruning
• Check extensions
• Chess Notation Parsers
• Continuous Integration Tests
• Checkmate detection

Full Changelog: https://github.com/tonywu315/chess/commits/v1.0