Zobrist Hash

class core.hash.ZobristHash(game_type: GameType)

Bases: object

Zobrist Hash.

toggle_last_moved_piece(piece_index: int) → None

Toggles the hash part for the last moved piece, specified by its index.

Parameters:

piece_index (int) – Moved piece index.

toggle_piece(piece_index: int, position: Position, stack: int) → None

Toggles the hash part for the specified piece at the specified position and stack.

Parameters:

• piece_index (int) – Moved piece index.

• position (Position) – Moved piece position.

• stack (int) – Moved piece elevation.

toggle_turn() → None

Toggles the hash part for the turn color.