Author: Brian Richardson
Date: 09:00:40 03/09/00
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On March 08, 2000 at 05:11:11, Howard Exner wrote: >Test your chess engine if it handles this repition theme correctly. To do this >set up the position below and play the white side yourself. Do not enter the >winning move Kh5 but instead play the blunder Kg5. Now let your program play the >black side at say game/15. It will of course play Kd5+ which forces perpetual >check. After it does that try to trick the program and reply Kg4. >Now the test - does your program play the correct Qd1+ or does it blunder and >mistakenly repeat the position with Qe4+, assuming that the opponent will >blunder again with Kg5? Rebel Century failed this test and assumed white would >play again the poor move Kg5. >Why would a program do this? Do other programs fall into this trap of assuming >a repetition of moves even when not forced? > >[D]8/4k3/7Q/8/4q1KP/6P1/8/8 w - - OK, the 3-rep question is an interesting one, but in this position, black is two pawns down--why wouldn't a draw be the "right" thing--so how could Qe4+ be a blunder? (my own chess is relatively poor, so please excuse my missing something obvious). Thanks.
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