Author: Gerrit Reubold
Date: 22:47:51 07/03/99
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On July 03, 1999 at 19:48:49, Pete Galati wrote: >On July 03, 1999 at 19:16:59, Gerrit Reubold wrote: > >>Hi all, >> >>please test your programs with the following position >> >>5rk1/1r3pp1/pp2pq2/3p4/3Q4/1PR5/P4PPP/4R1K1 w - - >> >>it is from a game which my program (Bringer) lost with white against The Crazy >>Bishop. The draw is very easy to see (for humans): Qxf6 gxf6, and then rook >>checks at h3, g3, f3... How long does your program take to find Qxf6 *with a >>draw score*. How many plies / seconds? Question to the programmers: What do you >>do to solve such positions fast? Extending on checks is not enough, my program >>needs a 12 ply search (8 minutes on a PII-300) to find the draw (Qxf6 is found >>earlier). >> >>Greetings, >>Gerrit Reubold > >Every program that I ran that posistion through, Crafty, Comet, Phalanx and your >Bringer all responded with QxQ. What did Bringer play in that game? I like >Bringer allot, it works well with Winboard and it also has a very good interface >of it's own. > >Pete Bringer likes Qd3 for some minutes, because I have a rule not to trade pieces when behind in material, especially not when the opponent king is (a bit) less safe. The Question was: how long do the other programs need to find the draw, not only the key move. I tested Fritz5.16, the draw was seen instantly, impressive. Hiarcs 6 does like QxQ instantly, but needs some minutes to see the draw. BTW: isn't QxQ a blunder as long as you don't see the draw, trading to an endgame a pawn down? Greetings Gerrit
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