Author: Chris Kantack
Date: 18:31:21 04/27/02
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On April 27, 2002 at 18:41:28, John Merlino wrote: >On April 27, 2002 at 18:12:27, Uri Blass wrote: > >>The following position is from my last game >> >>[D]6k1/RR4p1/5p1p/4p3/8/P7/4rrPP/3K4 b - - 0 31 >> >>I played 31...Rxg2 and after 32.a4 Ra2 my opponent resigned. >> >> >> >>After the game he said that he needed one more tempo. >> >>I said that I was lucky because I saw the idea of Rxg7+ that almost win the game >>only after I played 31...Rxg2. >> >>I played 31...Rxg2 fast because the move seemed to be almost forced(I did not >>like the idea of Rd2+ Kc1 and the idea of Ra2 with the double mate threat is >>gone) >> >>I also said in the anlaysis that the best was still 32.Rxg7+ Rxg7 33.Ra8+ >>inspite of the fact that white is losing after 33...Kf7 34.Kxe2 Rg2+ because in >>the worst case black will need to sacrifice the rook for the a pawn when the >>black passed pawns are going to be srtronger than the rook. >> >> >>I find that some top programs cannot find 31...Rxg2 >>for black because they do not evaluate correctly the pawn endgame. >> >> >>Uri > >It takes Chessmaster 9000 (pre-Beta) 2:05 on a PIII-600 to see Rxg2, but about a >minute later it discards it for Rd2+ (which turns out to be two checking moves >to force the White King farther away from the Black pawns BEFORE taking on g2): > (rest removed for brevity) ChessMaster 6000 (on 1.6GHz P4) finds Rxg2 instantly. It too then quickly discards it for Rd2+. Chris Kantack http://home.earthlink.net/~kantack/lcdchess/home.htm
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