shakmaty

A Rust library for chess move generation

Features

• Generate legal moves:

  ```rust use shakmaty::{Chess, Position};

  let pos = Chess::default(); let legals = pos.legals(); assert_eq!(legals.len(), 20); ```

• Play moves:

  ```rust use shakmaty::{Square, Move, Role};

  // 1. e4 let pos = pos.play(&Move::Normal { role: Role::Pawn, from: Square::E2, to: Square::E4, capture: None, promotion: None, })?; ```

• Detect game end conditions: pos.is_checkmate(), pos.is_stalemate(), pos.is_insufficient_material(), pos.outcome().

• Read and write FENs, SANs and UCIs.

• Supports Standard chess and Chess960. Provides vocabulary to implement other variants.

• Bitboards and compact fixed shift magic attack tables.

Documentation

Read the documentation

Changelog

• 0.3.0
  • Switch to #[repr(i8)] for Square. Implement all lossless integer conversions From<Square>.
  • Add Square::flip_horizontal(), flip_vertical() and flip_diagonal().
  • Efficiently implement CarryRippler::last() by @nvzqz.
  • Eliminate some unchecked indexing by @nvzqz.
  • Faster ASCII case conversions and tests by @nvzqz.
• 0.2.0
  • Square is now a #[repr(u8)] enum.
  • Use bitflags for PositionError.
  • Rename RemainingChecks::subtract() to decrement().
  • Add Position::swap_turn().
• 0.1.0
  • First release with support for stable Rust.

License

Shakmaty is licensed under the GPL-3.0 (or any later version at your option). See the COPYING file for the full license text.