Author: Bob Durrett
Date: 06:58:28 12/31/02
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On December 31, 2002 at 09:33:06, Uri Blass wrote: >On December 31, 2002 at 09:01:55, Bob Durrett wrote: > >>In the following position, with Black to move, Fritz 8 says the correct move is >>Re8. It gives a position evaluation of 0.00 >> >>5r1k/pp1p2pp/n4q2/2pB4/2P2r2/8/PP2QPPP/R4RK1 b - - 0 18 >>wKg1,Qe2,Bd5,Ra1,f1,Pa2,b2,c4,f2,g2,h2/bKh8,Qf6,Na6,Rf4,f8,Pa7,b7,c5,d7,g7,h7 >> >>I forgot how to display the position here. Maybe someone will do it for me. >> >>Bob D. > >Can you post the relevant game. I absolutely guarantee that you don't want to see the relevant game. It was one of my 60+ blitz 2 12 ICC games which I played recently, after years of inactivity, for the purpose of determining how much my game had deteriorated. The game is filled with big errors on both sides. > >Maybe Re8 force repetition of the position so Fritz prefers repetition and not >negative evaluation(of course in that case white made an horrible blunder in a >previous move). If you will look at the position, you will see that there is no chance for a draw by repetition of the position. But your idea does sound right. Fritz must have gone into a mode where it "thought" there was a repetition of the position. Maybe there is an unintended jump to that "repetition of position display" subroutine or function which occurs improperly sometimes. > >A lot of programs evaluates first repetition as a draw. >It may be wrong in analysis but in games it is usually no problem. This jumped out at me in post-mortem analysis. Strangely, my opponent in the actual game also played Re8?? and I, shamefully [!!!], failed to capture the rook. Maybe this has something to do with the bug. > >Uri
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