Author: John Merlino
Date: 11:54:57 02/09/03
Go up one level in this thread
On February 09, 2003 at 06:14:26, Steffen Jakob wrote: >Hi, > >in the following position Hossa exchanged the queen against two rooks in a match >with Hiarcs8: > >[D]6k1/5R2/1p1p2p1/p2q4/2p4P/P1P2R2/5PP1/6K1 b - - 0 33 > >It seems as if the pawn endgame after 33... Qxf7 34.Rxf7 Kxf7 is lost for black. >What does your engine say about this? The game continued with 35.f4 d5 36.Kf2 d4 >37.cxd4 b5 38.Ke2 b4 39.axb4 axb4 Chessmaster 9000, on a P3-733, also exchanges the queen for the two rooks. But I think that's only because it thinks that it's the least of all evils. Time Depth Score Positions Moves 0:00 1/4 -0.35 2434 33...Qxf7 34.Rxf7 Kxf7 35.Kf1 Ke6 36.Ke2 Kd5 37.Ke3 0:00 1/5 -0.40 10367 33...Qxf7 34.Rxf7 Kxf7 35.Kf1 Ke6 36.Ke2 b5 37.Ke3 Kd5 0:00 1/6 -0.23 22687 33...Qxf7 34.Rxf7 Kxf7 35.f4 Ke6 36.g4 b5 37.Kf2 Kd5 38.Ke3 0:00 1/7 -0.23 56310 33...Qxf7 34.Rxf7 Kxf7 35.f4 Ke6 36.g4 b5 37.Kf2 Kd5 38.Ke3 0:01 1/8 -0.05 68584 33...Qxf7 34.Rxf7 Kxf7 35.f4 Ke6 36.g4 b5 37.Kf2 a4 38.h5 gxh5 39.gxh5 0:01 2/9 0.10 96721 33...Qxf7 34.Rxf7 Kxf7 35.f4 Ke6 36.g4 b5 37.Kf2 Kf6 38.Ke3 Ke6 39.Ke4 0:01 3/10 0.22 160799 33...Qxf7 34.Rxf7 Kxf7 35.f4 Ke6 36.g4 b5 37.Kf2 Kf6 38.Ke3 Ke6 39.h5 gxh5 40.gxh5 0:03 4/11 0.36 312462 33...Qxf7 34.Rxf7 Kxf7 35.f4 Ke7 36.Kf2 b5 37.g4 Ke6 38.h5 gxh5 39.gxh5 Kf5 40.h6 Kg6 0:08 5/12 0.42 851597 33...Qxf7 34.Rxf7 Kxf7 35.f4 Ke7 36.Kf2 b5 37.g4 Ke6 38.h5 gxh5 39.gxh5 Kf7 40.Ke3 Kg7 41.Ke4 0:27 6/13 0.46 2750971 33...Qxf7 34.Rxf7 Kxf7 35.f4 Ke7 36.Kf2 b5 37.g4 Kf7 38.Ke3 Kg7 39.Kd4 Kf7 40.h5 gxh5 41.gxh5 Kg7 42.f5 1:21 7/14 0.49 7734441 33...Qxf7 34.Rxf7 Kxf7 35.g4 b5 36.Kf1 Kf6 37.f4 Ke6 38.Kf2 Kf6 39.Ke3 a4 40.Ke4 Kg7 41.f5 gxf5+ 42.Kxf5 b4 3:34 8/15 0.49 19762353 33...Qxf7 34.Rxf7 Kxf7 35.g4 b5 36.Kf1 Kf6 37.f4 Ke6 38.Kf2 Kf6 39.Ke3 a4 40.Ke4 Ke6 41.h5 d5+ 42.Kd4 gxh5 43.gxh5 It thinks the two next best moves are b5 and Qd1+, which both get an eval of over 1.4 for White. >[D]8/5k2/6p1/8/1ppP1P1P/8/4K1P1/8 w - - 0 40 > >Here Hossa overevaluates the connected passed pawns which is maybe the reason >for 33... Qxf7 40.Kd2 and 41.Kc3 stops the Black pawns cold, leaving the Black king to stop the other three pawns. It's very over, but it appears that it was over before 33...Qxf7: Time Depth Score Positions Moves 0:00 2/6 0.30 2900 40.d5 Ke7 41.g4 Kd6 42.h5 gxh5 43.gxh5 0:00 3/7 0.31 5311 40.d5 Ke7 41.g4 b3 42.Kd2 Kd6 43.h5 0:00 4/8 0.14 13339 40.d5 Ke7 41.g4 b3 42.Kd2 b2 43.Kc2 c3 44.h5 gxh5 45.gxh5 0:00 4/8 0.31 17281 40.Kd2 b3 41.Kc3 Ke6 42.g4 Kd5 43.h5 gxh5 44.gxh5 0:00 5/9 0.99 31835 40.Kd2 b3 41.Kc3 Ke6 42.g4 Kf6 43.h5 gxh5 44.gxh5 Kf5 45.h6 0:00 6/10 0.99 64818 40.Kd2 b3 41.Kc3 Ke6 42.g4 Kf6 43.h5 gxh5 44.gxh5 Kf5 45.h6 0:01 7/11 1.29 118530 40.Kd2 b3 41.Kc3 Ke6 42.g4 Kf6 43.h5 gxh5 44.gxh5 Kf5 45.h6 Kg6 0:02 8/12 1.23 214658 40.Kd2 b3 41.Kc3 Ke6 42.g4 Kf6 43.h5 gxh5 44.gxh5 Kf5 45.h6 Kg6 46.d5 0:04 9/13 1.51 500750 40.Kd2 b3 41.Kc3 Ke6 42.g4 Kf6 43.h5 gxh5 44.gxh5 Kf5 45.h6 Kg6 46.d5 Kf6 47.h7 0:16 10/14 3.26 1863679 40.Kd2 b3 41.d5 Kf6 42.g4 b2 43.Kc2 c3 44.h5 gxh5 45.gxh5 Kf7 46.h6 Kg8 47.h7+ Kxh7 48.d6 Kg6 0:28 11/15 4.04 3084893 40.Kd2 b3 41.Kc3 Ke6 42.g4 Kf6 43.h5 gxh5 44.gxh5 Kf5 45.d5 Kf6 46.h6 Kg6 47.f5+ Kxh6 48.d6 Kg5 0:59 12/16 6.07 6256330 40.Kd2 b3 41.g4 Ke6 42.h5 gxh5 43.gxh5 Kf7 44.d5 Kf6 45.h6 b2 46.Kc2 Kg6 47.Kxb2 Kxh6 48.d6 Kh5 49.d7 jm
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