Author: John Merlino
Date: 17:07:20 10/01/02
Go up one level in this thread
On September 30, 2002 at 17:49:21, John Merlino wrote: >On September 30, 2002 at 17:40:40, Terry Ripple wrote: > >>I believe this was the position where Susan Polgar said it was a win if the >>Larry's Queen first checks and then captures the g2 pawn! >> >>I can't find a win here and looks like the Queen check for move #58 is faulty! >>It looks like maybe the best move is "Rf4" to draw the game at best! >> >>Regards, >> Terry >> >>>[d]8/p1p5/Pp1p2nk/1P1B3q/2P1P1r1/1Q3pp1/R5P1/3RK3 b > >I think you're off by one move. I'm pretty sure that Susan suggested Qh1+ for >move 57, in this position.... > >[D]8/p1p5/Pp1p2nk/1P1B3q/2P1Ppr1/1Q4p1/R5P1/3R1K2 b - - 0 57 > >The obvious line would be 57...Qh1+ 58.Ke2 Qxg2+ 59.Kd3 Ne5+, resulting in this >position: > >[D]8/p1p5/Pp1p3k/1P1Bn3/2P1Ppr1/1Q1K2p1/R5q1/3R4 w - - 0 60 > >I intend to let our box run on this position overnight at some point. > >jm I actually backed it up one move, because I felt that 59...Ne5+ was not forced. I then let our P4-2.66 run on the position for over 20 hours, and here is what it came up with: Time Depth Score Positions Moves 0:00 1/3 1.05 1055 59...Qf3+ 60.Kc2 Ne5 61.Qxf3 Nxf3 0:00 1/4 1.13 2858 59...Qf3+ 60.Kc2 Qxb3+ 61.Kxb3 g2 62.Raa1 Rg3+ 63.Kc2 Ne5 0:00 1/4 0.48 7315 59...Ne5+ 60.Kc3 Qf3+ 61.Kb4 g2 62.Raa1 Qf2 63.Qh3+ Kg7 0:00 1/5 0.41 16736 59...Ne5+ 60.Kc3 Qf3+ 61.Kb4 g2 62.Rg1 Qxb3+ 63.Kxb3 Rg3+ 64.Kc2 Nf3 0:00 1/6 -0.31 39395 59...Ne5+ 60.Kc3 Qf3+ 61.Kb4 g2 62.Rg1 Qxb3+ 63.Kxb3 Rg3+ 64.Ka4 f3 65.Rd2 0:00 1/7 -0.24 106940 59...Ne5+ 60.Kc3 Qf3+ 61.Kb4 g2 62.Rg1 Qxb3+ 63.Kxb3 Rg3+ 64.Ka4 f3 65.Rd2 Kh5 0:01 1/8 0.14 275281 59...Ne5+ 60.Kd4 Qf3 61.Qxf3 Nxf3+ 62.Kc3 g2 63.e5 g1=Q 64.Rxg1 Nxg1 65.Rh2+ Kg7 66.e6 0:02 1/9 -0.24 591662 59...Ne5+ 60.Kd4 Qf3 61.Qxf3 Nxf3+ 62.Kc3 g2 63.e5 g1=Q 64.Rxg1 Nxg1 65.Rh2+ Kg5 66.e6 Rg3+ 67.Kd4 0:05 2/10 -0.22 1489211 59...Ne5+ 60.Kd4 Qf3 61.Qxf3 Nxf3+ 62.Kc3 g2 63.e5 g1=Q 64.Rxg1 Nxg1 65.e6 Rg3+ 66.Kd4 Re3 67.Be4 0:15 3/11 0.01 4158392 59...Ne5+ 60.Kd4 Qf3 61.Qxf3 Nxf3+ 62.Kc3 g2 63.e5 g1=Q 64.Rxg1 Nxg1 65.e6 Rg3+ 66.Kd4 Re3 67.Rh2+ Nh3 68.Be4 0:26 3/11 -0.12 6915388 59...Qf3+ 60.Kc2 Qxb3+ 61.Kxb3 f3 62.Kc3 g2 63.Rf2 g1=Q 64.Rxg1 Rxg1 65.Rxf3 Ne5 66.Rh3+ Kg7 67.Kd4 Rg2 0:47 4/12 -0.13 12849313 59...Qf3+ 60.Kc2 Qxb3+ 61.Kxb3 f3 62.Kc3 g2 63.Rf2 g1=Q 64.Rxg1 Rxg1 65.Rxf3 Ne5 66.Rh3+ Kg7 67.Kd4 Rd1+ 68.Kc3 Kf6 3:29 5/13 -0.21 55279224 59...Qf3+ 60.Kc2 Qxb3+ 61.Kxb3 f3 62.Kc3 f2 63.Rf1 Ne5 64.Rfxf2 gxf2 65.Rxf2 Rg3+ 66.Kc2 Kg7 67.Be6 Ra3 68.Kb1 Re3 5:42 5/13 -0.31 89640283 59...Qh3 60.Rg1 g2+ 61.Kc2 Rg3 62.Qb2 Ne5 63.c5 Qh2 64.Raa1 bxc5 65.Qc1 Qh4 66.Qd2 Nf3 16:14 6/14 -0.32 255878069 59...Qh3 60.Rg1 g2+ 61.Kc2 Rg3 62.Qb2 Ne5 63.c5 Qh2 64.Raa1 Re3 65.Qc1 Re2+ 66.Kb3 bxc5 67.Qc3 f3 1:41:46 7/15 -0.57 1544549413 59...Qh3 60.Kd4 Qh5 61.e5 f3+ 62.Kc3 Qxe5+ 63.Kb4 f2 64.Qf3 Rf4 65.Qh1+ Kg7 66.Qf1 Ne7 67.Bg2 Qe3 68.Qe2 Nf5 69.Qh5 4:47:54 8/16 -0.64 124418381 59...Qh3 60.Kd4 Qh5 61.e5 f3+ 62.Kc3 Qxe5+ 63.Kb4 f2 64.Rad2 Ne7 65.Rh1+ Kg7 66.Bg2 Qc5+ 67.Kc3 Nf5 68.Rd3 Ne3 69.Kd2 Nxg2 70.Rxg3 20:08:19 9/17 -0.63 1364298452 59...Qh3 60.Kc2 Qh2+ 61.Kb1 g2 62.e5 g1=Q 63.Rxh2+ Qxh2 64.exd6 cxd6 65.Bf3 Rg3 66.Rxd6 Qf2 67.Qd3 Rg1+ 68.Bd1 Qe3 69.Qc2 f3 70.Qh2+ Kg5 So, potentially Ne5+ is not the best move in this position, but Black MIGHT be able to win this. I have a feeling that they will be talking about this one for quite some time.... jm
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