Rust

Install with the following command.

cargo add hexchess

Basic usage

The Hexchess struct is a deserialized version of Forsyth–Edwards Notation. It contains the board state, current turn, en passant, and move numbers. Since castling is not a part of hexagonal chess, that section is omitted. Board state consists of twelve Bitboard values, each stored as a u128.

pub struct Hexchess {
    pub bitboard_black_bishop: Bitboard,
    pub bitboard_black_king: Bitboard,
    pub bitboard_black_knight: Bitboard,
    pub bitboard_black_pawn: Bitboard,
    pub bitboard_black_queen: Bitboard,
    pub bitboard_black_rook: Bitboard,
    pub bitboard_white_bishop: Bitboard,
    pub bitboard_white_king: Bitboard,
    pub bitboard_white_knight: Bitboard,
    pub bitboard_white_pawn: Bitboard,
    pub bitboard_white_queen: Bitboard,
    pub bitboard_white_rook: Bitboard,
    pub ep: Option<Position>,
    pub fullmove: u16,
    pub halfmove: u8,
    pub turn: Color,
}

The following constants are also available on hexchess::Constants

• EMPTY_POSITION

  1/3/5/7/9/11/11/11/11/11/11 w - 0 1

• INITIAL_POSITION

  b/qbk/n1b1n/r5r/ppppppppp/11/5P5/4P1P4/3P1B1P3/2P2B2P2/1PRNQBKNRP1 w - 0 1

Macros

The following macros are available to construct more readable bitmasks at compile time. To use them, install the following crate.

cargo add hexchess_macros

bitmask!

use hexchess_macros::bitmask;

bitmask!("x/3/5/7/9/11/11/11/11/11/11"); // u128 with first bit set

bitmask_csv!

use hexchess_macros::bitmask_csv;

bitmask_csv!("a1, a2"); // u128 with a1 and a2 bits set

Available methods

Method documentation not available yet.