Author: John Stanback
Date: 12:00:36 03/08/00
Go up one level in this thread
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 - - Zarkov does not have a problem with this test since I do not count the 2nd repetition of a position as a draw in the first 2 plies of the search. John
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.