Created
April 24, 2020 16:54
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Bughouse Single Board Puzzle Basic Validation
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| import chess | |
| from chess.variant import CrazyhouseBoard, CrazyhousePocket | |
| def bug_single_board_move(fen, san_move): | |
| board = CrazyhouseBoard() | |
| board.set_fen(fen) | |
| try: | |
| move = board.parse_san(san_move) | |
| is_capture = board.is_capture(move) | |
| capture_piece_type = None | |
| if is_capture: | |
| capture_piece = board.piece_at(move.to_square) | |
| if capture_piece == None: | |
| if board.is_en_passant(move): | |
| capture_piece_type = chess.PAWN | |
| else: | |
| capture_piece_type = capture_piece.piece_type | |
| if board.promoted & (1 << move.to_square): | |
| capture_piece_type = chess.PAWN | |
| board.push(move) | |
| board.pockets[not(board.turn)].remove(capture_piece_type)#undo crazyhouse pocket rules | |
| else: | |
| board.push(move) | |
| out_fen = board.fen() | |
| return out_fen | |
| except ValueError: | |
| return None | |
| test_fen = "r4r2/p1pb1kPp/b1p2Ppp/3pP2P/1P3P2/3N1Q1p/PPPp1PPP/R4K1R/Q w KQ - 0 1" | |
| out_fen = bug_single_board_move(test_fen, "Q@e7") | |
| print(out_fen) |
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