Author: blass uri
Date: 23:03:56 10/07/98
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On October 07, 1998 at 23:33:53, James T. Walker wrote: >I gave Fritz 5.16 a position /p4K/P////k// W. I think that I have that figured >out right. Anyway, Fritz announces #14 after about 16 sec. But when you go >through the moves it announces #13 twice, #10 twice,#8 followed by #9 etc. It >jumps from #6 to #4 no matter what move I make in that position. After that it >counts on down to mate properly. It ends up with about a mate in 17. What >causes this phenom ? Crafty with the same position announces #17 on the first >move then while pondering it finds mate in 15. After that it counts down by one >to mate. That seems fairly normal. >Jim Fritz never knew to count It was designed to play chess and not to count the number of moves to mate I think that this is because of hash tables Maybe fritz found that some position leads to mate and remember it in the hash tables as mate without the number of moves After it go to the same position again in the search it evaluates it as checkmate without number of moves and this is the reason that it cannot count Uri
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