Author: Uri Blass
Date: 03:19:38 04/15/03
Go up one level in this thread
On April 15, 2003 at 05:12:18, Ulf Flörsheimer wrote: >You maybe right. It seems that Rf6 and Sf3+ are exchangeable. But anyway I >believe that the resulting lines are the same except the exchange of the first >two black moves: > >... Nf3+ Kh1 Rf6 gxf exf ... >... Rf6 Kh1 Nf3 gxf exf ... > >But maybe I'm wrong with my opinion. > >Ulf I agree. This is the reason that Nf3+ is not the only winning move. The only option to check is if after Rf6 white has an alternative to Kh1 but shredder7.04 cannot see a logical alternative and the fact that it does not find a better move than Kh1 at dpeth 13 suggests that the score for other moves is worse than -3.79. New game r1b3k1/pp4pp/4pr2/2Ppn1q1/4p3/PNN1P3/1PP1QPPP/R4RK1 w - - 0 1 Analysis by Shredder 7.04: 2.f4 exf3 ³ (-0.49) Depth: 1/3 00:00:00 2.f4 exf3 ³ (-0.49) Depth: 1/3 00:00:00 2.Rad1 = (0.12) Depth: 1/3 00:00:00 2.Rad1 = (0.12) Depth: 1/3 00:00:00 2.Rad1 Nf3+ 3.Kh1 ³ (-0.42) Depth: 2/4 00:00:00 2.Rad1 Nf3+ 3.Kh1 ³ (-0.42) Depth: 2/4 00:00:00 2.Nd4 Nd3 = (-0.14) Depth: 2/4 00:00:00 2.Nd4 Bd7 = (-0.10) Depth: 2/4 00:00:00 2.Nd4 Nf3+ 3.Kh1 Nh4 = (-0.13) Depth: 3/11 00:00:00 2.Nd4 Bd7 3.Ncb5 Bxb5 4.Qxb5 ³ (-0.26) Depth: 4/11 00:00:00 2.Qb5 Nf3+ 3.Kh1 Qxg2+ 4.Kxg2 Ne1+ 5.Rfxe1 = (-0.25) Depth: 4/11 00:00:00 2.Qb5 Qh4 3.h3 Nc4 = (-0.17) Depth: 4/11 00:00:00 2.Qb5 Nf3+ 3.Kh1 Nh4 4.a4 Nxg2 ³ (-0.45) Depth: 5/11 00:00:00 2.Qb5 Nf3+ 3.Kh1 Qh5 4.h3 a6 5.Qb4 µ (-0.77) Depth: 5/13 00:00:00 2.Nd4 Nf3+ 3.Kh1 Nh4 4.f4 Rh6 5.fxg5 µ (-0.76) Depth: 5/13 00:00:00 2.Nd4 Nf3+ 3.Kh1 Rg6 4.g3 Ne5 ³ (-0.51) Depth: 5/13 00:00:00 2.Nd4 Bd7 3.f4 exf3 4.Nxf3 Nxf3+ 5.Rxf3 Rxf3 6.Qxf3 Rf8 ³ (-0.31) Depth: 6/15 00:00:00 31kN 2.Nd4 Bd7 3.f4 exf3 4.Rf2 ³ (-0.56) Depth: 7/17 00:00:00 53kN 2.Nd4 Nf3+ 3.Kh1 Rg6 4.g3 Qh5 5.Nxf3 exf3 6.Qd3 Qh3 ³ (-0.66) Depth: 7/19 00:00:00 83kN 2.Kh1 Rg6 3.Rg1 Bd7 4.f4 exf3 5.gxf3 Qh5 6.Rxg6 Qxf3+ 7.Qxf3 ³ (-0.65) Depth: 7/19 00:00:01 138kN 2.Kh1 Rg6 3.Rg1 Bd7 4.Qd2 ³ (-0.65) Depth: 7/19 00:00:01 140kN 2.Kh1 Qh4 3.a4 Nf3 4.h3 Rg6 5.Nd4 Qg5 6.g4 Qf5 7.gxf5 µ (-0.76) Depth: 8/21 00:00:02 341kN 2.Nd4 Nf3+ 3.Kh1 Rg6 4.g3 Qh5 5.Nxf3 exf3 6.Qb5 e5 7.Nxd5 Qxh2+ µ (-0.75) Depth: 8/21 00:00:02 372kN 2.Nd4 Nf3+ 3.Kh1 Rg6 4.g3 Qh5 5.Nxf3 exf3 6.Qd1 Bd7 7.Kg1 Rc8 ³ (-0.65) Depth: 8/21 00:00:02 413kN 2.Nd4 Nf3+ 3.Kh1 Qh4 4.h3 e5 5.Nxd5 Rf7 6.Nb5 Bxh3 7.Nd6 ³ (-0.64) Depth: 9/22 00:00:03 570kN 2.Nd2 Nf3+ 3.Kh1 Rg6 4.g3 Nxd2 5.Qxd2 Qh4 6.gxh4 Rg1+ 7.Kxg1 ³ (-0.63) Depth: 9/22 00:00:05 832kN 2.Nd2 Nf3+ 3.Kh1 Qh4 4.h3 Bd7 5.Rad1 Rd8 6.b4 Ne5 7.f4 exf3 8.Nxf3 ³ (-0.56) Depth: 9/23 00:00:06 985kN 2.Nd2 Nf3+ 3.Kh1 Qh4 4.h3 e5 5.Qd1 Bxh3 6.Ndxe4 dxe4 7.Qd8+ Rxd8 µ (-0.81) Depth: 10/23 00:00:07 1253kN 2.Nd2 Nf3+ 3.Kh1 Qh5 4.Nxf3 exf3 5.gxf3 Rh6 6.Qe1 Qxf3+ 7.Kg1 Kh8 8.Rd1 Bd7 µ (-1.31) Depth: 10/31 00:00:12 2008kN 2.Nd2 Nf3+ 3.Kh1 Qh5 4.h3 e5 5.Ncxe4 dxe4 6.Qc4+ Be6 7.Qxe4 Nxd2 8.Qxb7 Raf8 9.Kg1 Nf3+ 10.Kh1 Bxh3 11.Qxa7 -+ (-5.77) Depth: 10/36 00:00:17 3079kN 2.Kh1 Qh4 3.a4 Ng4 4.h3 Nxf2+ 5.Rxf2 Qxf2 6.Qxf2 Rxf2 7.Nxd5 exd5 -+ (-5.76) Depth: 10/36 00:00:18 3112kN 2.Kh1 Qh4 3.a4 Ng4 4.h3 Nxf2+ 5.Rxf2 Qxf2 6.Qxf2 Rg6 -+ (-5.41) Depth: 10/36 00:00:18 3129kN 2.Kh1 Qh4 3.h3 Bd7 4.Nd4 Rc8 5.Ncb5 Rxc5 6.Nxa7 Nc4 µ (-0.90) Depth: 10/36 00:00:25 4227kN 2.Kh1 Nf3 3.Qb5 Nh4 4.g3 Nf3 5.Nd4 Qh5 6.Nxf3 Qxf3+ 7.Kg1 Rf8 8.Rad1 µ (-1.15) Depth: 11/36 00:00:36 6012kN 2.Kh1 Nf3 3.Qb5 Nh4 4.g3 Nf3 5.Nd4 Qh5 6.Nxf3 Qxf3+ 7.Kg1 Rf8 8.Rad1 -+ (-1.65) Depth: 11/36 00:00:39 6448kN 2.Kh1 Nf3 3.gxf3 exf3 4.Rg1 Qxg1+ 5.Kxg1 fxe2 -+ (-1.89) Depth: 11/36 00:00:43 7119kN 2.Kh1 Nf3 3.gxf3 exf3 4.Rg1 Qxg1+ 5.Kxg1 fxe2 6.Nxe2 Bd7 7.Rd1 Rc8 8.f4 Ba4 9.Ned4 -+ (-1.90) Depth: 12/36 00:01:04 10737kN 2.Kh1 Nf3 3.gxf3 exf3 4.Rg1 Qh5 5.Ne4 Rh6 6.Nf6+ Rxf6 7.Qd3 Rh6 8.Rxg7+ Kxg7 9.Qxh7+ Rxh7 -+ (-2.15) Depth: 13/36 00:02:10 21829kN 2.Kh1 Nf3 3.gxf3 exf3 4.Rg1 Qh5 5.Ne4 Rh6 6.Nf6+ Rxf6 7.Qd3 Rh6 8.Rxg7+ Kxg7 9.Rg1+ Rg6 10.Qd4+ e5 11.h4 exd4 -+ (-2.65) Depth: 13/39 00:02:51 28830kN 2.Kh1 Nf3 3.gxf3 exf3 4.Rg1 Qh5 5.Nxd5 exd5 6.Qd1 Rh6 7.Rxg7+ Kxg7 8.Qd4+ Kg8 9.Rg1+ Rg6 10.Rxg6+ hxg6 11.c4 Qh3 12.Qxd5+ Be6 13.Qd4 -+ (-3.79) Depth: 13/39 00:03:59 40574kN 2.Kh1 Nf3 3.gxf3 exf3 4.Rg1 Qh5 5.Nxd5 exd5 6.Qd1 Rh6 7.Rxg7+ Kxg7 8.Qd4+ Kg8 9.Rg1+ Rg6 10.Rxg6+ hxg6 11.Nd2 Be6 12.Qf6 Qf5 -+ (-3.83) Depth: 14/40 00:08:39 87143kN (Blass, Tel-Aviv 15.04.2003) Uri
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