Number of Legal Moves to empty squares only #846
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Is there a way to separate legal moves to empty squares from legal moves that are captures? And count both? |
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You can use bitboard masks to achieve this. gen = board.generate_legal_moves(to_mask=~board.occupied) # To empty squares only
gen = board.generate_legal_moves(to_mask=board.occupied) # To occupied squares onlyNote that en passant captures are moves to empty squares. Use These functions return generators. Moves can be counted using |
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Great. Thanks! |
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what is the way to get from the gen (from above) to SquareSet? |
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You can use bitboard masks to achieve this.
Note that en passant captures are moves to empty squares. Use
board.generate_legal_captures()to include these.These functions return generators. Moves can be counted using
len(list(gen))orsum(1 for _ in gen).