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perft segfaults about ethereal HOT 4 CLOSED

andygrant avatar andygrant commented on July 29, 2024
perft segfaults

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Comments (4)

lucasart avatar lucasart commented on July 29, 2024

I think your FEN is wrong in perft.epd. This FEN also crashes Demolito. But I'm looking at this FEN, and I can't see why...

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lucasart avatar lucasart commented on July 29, 2024

Ah, It's obvious! It cannot be black's turn to play, because Qh4 captures Ke1. Wrong FEN. Need to correct perft.epd.

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AndyGrant avatar AndyGrant commented on July 29, 2024

Removing the last few positions -- verified the rest through Stockfish. Does not crash on windows, but that tends to be the case with a lot of illegal operations. SF also does not crash on windows. Probably comes down to a piece lookup using getlsb(0), an illegal memory lookup follows, and windows is okay with that sometimes.

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AndyGrant avatar AndyGrant commented on July 29, 2024

Resolve with bdbad8a

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