Author: KarinsDad
Date: 09:25:10 07/07/00
Other than mine? One of the bugs having my program play itself on Winboad discovered was that the king would move out of check into a square that was not originally covered by check, but is now an illegal square due to the checking piece now attacking it. For example: [D]1Q4k1/6pp/8/8/8/8/8/6K1 b In this position, white just played Qb8+. Black then plays the illegal move Kh8 since it determines which squares are not attacked by white using the PieceAttacks structure (which is just a set of bits indicating which squares are attacked by which piece in a given position). Now, I am adding code to avoid this problem, but without generating ALL moves ahead of time and checking for legality after illegal moves have been generated, does anyone else have a program which does this up front? And if so, is there a slick way of doing it (my method is kind of clumsy)? KarinsDad :)
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