Author: Mike Hood
Date: 11:41:20 04/07/02
Go up one level in this thread
On April 07, 2002 at 14:23:46, Terry McCracken wrote: >On April 07, 2002 at 11:57:18, Robert Hyatt wrote: > >>On April 07, 2002 at 10:41:27, Michael Fuhrmann wrote: >> >>>[D] 1b6/8/8/7p/6k1/6P1/8/6K1 w - - 0 1 >>> >>>Crafty, without tablebases, scores this as about -4.5 for white. Shouldn't the >>>score be 0.0? >> >> >>This excites some sort of bug that I haven't seen. the static evaluation for >>this position is 0.00, but the search produces some sort of position where the >>draw recognition fails... >> >>I'll look at it... > >Don't be too hard on yourself Dr. Hyatt, Fritz 7 although close to accurate >gives an eval of -0.81 pawns and Shredder is a little worse than Crafty at >-4.96, well Chess Tiger 14.0 is "out to lunch" between -12 to -11+ pawns! > >Sorry Christophe! You need to fix this problem before you release Chess Tiger >15.0. > >Terry This is a matter of opinion. I think that today's chess programmers have the right to assume the use of 5-piece tablebases. The time spent tweaking the algorithms for cases like this would be better spent on writing better algorithms for middlegame analysis. But it's the programmer's own decision. Maybe he wants to solve this problem anyway for the sake of his own intellectual achievement.
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