Author: Sune Larsson
Date: 12:45:01 12/14/02
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On December 14, 2002 at 06:51:19, Kurt Utzinger wrote: >A most interesting position that quite a lot of engines are unable to assess >correctly. For me however, the more important question is if this is a good >example because it demonstrates an exception of the rule in this kind of >position that Black should not exchange pieces. And for this reason it may be >not worth for a programmer to change anything. >Kurt > >Neue Partie >[D]8/1pp5/p1p3pp/5k2/5P1P/5KP1/PPP1R3/5r2 w - - 0 1 >Neue Partie >8/1pp5/p1p3pp/5k2/5P1P/5KP1/PPP1R3/5r2 w - - 0 1 > >Analysis by Chess Tiger 14.0: > >1.Tf2 Txf2+ 2.Kxf2 Ke4 3.b4 b6 4.a3 a5 5.bxa5 bxa5 6.Ke2 c5 7.Kf2 c4 8.c3 c5 >9.Ke2 a4 10.Kd2 > = (-0.12) Tiefe: 10 00:00:00 170kN > = (-0.08) Tiefe: 16 00:03:03 68668kN > >(Utzinger, MyTown 14.12.2002) From the above position (with pawn still on a2), I get the following output from Chess Tiger 14.0 /PIII 800 - hash 96/. So here CT would play the correct 1.Kg2! - in 40/60 minutes. Fritz 8 - Shredder Paderborn 8/1pp5/p1p3pp/5k2/5P1P/5KP1/PPP1R3/5r2 w - - 0 1 Analysis by Chess Tiger 14.0: 6.Rf2 Rxf2+ 7.Kxf2 Kg4 8.c3 c5 9.b3 c6 10.a3 b6 11.c4 = (-0.20) Depth: 10 00:00:00 108kN 6.Rf2 Rxf2+ 7.Kxf2 Kg4 8.Kf1 c5 9.b3 b5 = (-0.24) Depth: 10 00:00:00 212kN 6.Rf2 Rxf2+ 7.Kxf2 Kg4 8.Kf1 c5 9.Kf2 c6 10.b3 b6 11.c3 h5 12.a3 = (-0.24) Depth: 11 00:00:02 574kN 6.Rf2 Rxf2+ 7.Kxf2 Ke4 8.Ke2 h5 9.Kf2 c5 10.Ke2 b5 11.Kf2 c4 12.Ke2 c5 ³ (-0.34) Depth: 12 00:00:04 1112kN 6.Kg2 Ra1 7.a3 h5 8.c3 Kf6 9.Rd2 Rb1 10.Kf3 a5 11.Rd7 a4 ³ (-0.30) Depth: 12 00:00:07 1919kN 6.Kg2 Ra1 7.a3 Ra2 8.c3 h5 9.Kf3 Kf6 10.Ke4 ³ (-0.42) Depth: 13 00:00:12 2950kN 6.Rf2 Rxf2+ 7.Kxf2 Kg4 8.b4 h5 9.Kg2 b6 10.Kf2 b5 11.c3 Kh3 12.Kf3 Kh2 13.a3 ³ (-0.32) Depth: 13 00:00:24 5931kN 6.Rf2 Rxf2+ 7.Kxf2 Ke4 8.b4 h5 9.Ke2 b6 ³ (-0.42) Depth: 14 00:00:34 8387kN 6.Kg2 Ra1 7.a3 h5 8.Kf3 Rf1+ 9.Kg2 Rb1 10.b3 Kf6 11.Rd2 Rb2 12.Kh3 Ke6 13.Re2+ Kd6 ³ (-0.36) Depth: 14 00:00:49 12133kN 6.Kg2 Ra1 7.a3 h5 8.Kf3 Rf1+ 9.Kg2 Rb1 10.b3 Kf6 11.Rd2 Rb2 12.Kh3 Ke6 13.Re2+ Kd6 14.Rd2+ Ke7 ³ (-0.26) Depth: 15 00:02:07 31297kN 6.Kg2 Rb1 7.c3 Rd1 8.Kf3 Rd3+ 9.Kf2 Kg4 10.Re6 Rd6 11.Re7 Rd2+ 12.Re2 Rxe2+ 13.Kxe2 a5 14.Kf2 a4 15.b3 a3 ³ (-0.26) Depth: 16 00:06:31 96168kN (Larsson, KIL 14.12.2002)
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