Author: Frank Quisinsky
Date: 14:21:20 05/23/01
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On May 22, 2001 at 22:01:03, Dieter Buerssner wrote: >On May 22, 2001 at 21:10:59, Frank Quisinsky wrote: > >>2 interesting positions from Leiden: >> >>Leiden: Yace - Patzer >>3r1r1k/ppp1q1pp/4p3/2P1Pp2/3Pp3/PQ3bP1/1P2NP1P/3RR1K1 b - - >> >>Patzer won the game with a very strong attack move. > >I agree, that Patzer played this game extremely well. Here it moved f4. I think, >after this move, this is a forced win. I tried many variations, to come to this >conclusion. I believe, the game was lost for Yace even earlier, although I am >not sure yet, what the decisive mistake was. > >Anyway, I think Patzer played extremely well in this game, and Yace was very >naive. It toatall underestimated the danger of the bishop on f3. Also I think, >this position can be a real problem for engines, that use nullmove. There are >many mate threats, but they are introduced by more or less silent moves. This is >not a total failure of nullmove using engines, but it can make them use much >more depth, than one would assume, to see the real threat. > >I already made quite a few changes to Yace, that all were inspired by this game. > >I really would be interested in the scores, that Patzer showed in this move. >Perhaps you can sen me those in email. > >My congratulation goes to Roland. This really was the fastest defeat of Yace in >any game at a long time control. > >Regards, >Dieter > >P.S. On my computer, Yace finds f4 in one minute. Hi Dieter, thanks for your replay (good that you have every time interest on results and impressions in different chess fora, like your comments). I send Roland Pfister at the moment the log files via eMail, I think Roland can better send the important information to you. Roland was very happy about the full point agains Yace. Your program is very strong and Roland and I hope of a remis :-) 1 minute is very fast. The most programs which I try cann´t found the move under 2 minutes on 1 GHz. But this is not very important. Patzer played very interesting chess and is very strong in king attacks. So Roland can beat Nimzo 2x in Leiden, Diep 2x in Leiden and played in Leiden a lot of very interesting games with king attacks. The position: Yes the bishop is very strong and Patzer played the right moves. Also move 18. is right. With the opening I am not very happy. Kc6 is not so strong (pawn c7 standing in this position not very good). I think ... oh je Yace hat schon nach wenigen Zügen eine sehr gute Stellung. Best Frank
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