Author: Kurt Utzinger
Date: 11:32:25 11/02/04
Go up one level in this thread
On November 02, 2004 at 12:51:45, Dom Leste wrote:
>Pro Deo S&D67 found this move against List 512
>
>74...Rh4+!! insane way to equalise, where it was down at this stage.
>
>[D]4r1k1/8/3q2p1/1pRp1p1p/pPbPr2P/P3PQPK/2RB1P2/8 b - - 0 1
>
>
>Match finished in a draw
>
>75.Kxh4 g5+ 76.Kxh5 Qf6 77.R2xc4 Qf7+ 78.Kxg5 Qe7+
>79.Kxf5 Rf8+ 80.Kg4 Qe6+ 81.Kg5 Rxf3 82.R5c8+ Kg7
>83.R4c7+ Rf7 84.f4 Qg6+ 85.Kh4 Qh6+ 86.Kg4 Qg6+
>87.Kf3 Qh5+ 88.g4 Qh3+ 89.Ke2 Qxg4+ 90.Kd3 Qf5+
>91.Ke2 Qg4+ 92.Kd3 Qf5+ 93.Ke2 Qg4+ {3-fold repetition} 1/2-1/2
Pharaon 3.1 does not find the solution. The program
can't - even after 74...Rxh4 - see within reasonable
time that it's a draw (see below)
Kurt
[D]4r1k1/8/3q2p1/1pRp1p1p/pPbP3r/P3PQPK/2RB1P2/8 w - - 0 2
Pharaon 3.1: (P4 1.8/32 MB hash, Arena 1.092)
6/25 00:00 150.111 238.707 +4.77 Kxh4 g5+ Kxh5 Kg7 Dxf5 Le2+ f3 Dh6+ Kg4
Te4+ Dxe4 dxe4
7/25 00:03 786.456 242.539 +5.48 Kxh4 g5+ Kxh5 Kg7 Dxf5 Le2+ f3 Dh6+ Kg4
Te4+ Dxe4 dxe4 Txg5+ Kf6
8/25 00:08 2.028.761 254.466 +3.86 Kxh4 g5+ Kxh5 Df6 Tc6 Dxc6 Dxf5 Tc8 Kxg5
9/25 00:20 5.423.776 262.080 +2.82 Kxh4 g5+ Kxh5 Df6 T2xc4 Df7+ Kxg5 De7+
Kxf5 Tf8+ Kg4 De6+ Kh4 Txf3 Tc8+ Kf7
10/25 01:00 15.697.783 262.705 +2.74 Kxh4 g5+ Kxh5 Df6 T2xc4 Df7+ Kxg5 De7+
Kxf5 Tf8+ Kg4 Dd7+ Kh4 Txf3 Tc8+ Kf7
11/25 02:15 35.744.459 264.547 +0.92 Kxh4 g5+ Kxh5 Kg7 Dxf5 Le2+ f3 Lxf3+
Dxf3 Dg6+ Kg4 Te4+ Kh3 g4+ Kg2 gxf3+ Kxf3 Tg4 Le1 Tg5 Tc7+ Kf6
12/25 05:47 92.134.658 265.507 +1.01 Kxh4 g5+ Kxh5 Kg7 Dxf5 Le2+ f3 Lxf3+
Dxf3 Dg6+ Kg4 Te4+ Kh3 g4+ Kg2 gxf3+ Kxf3 Dh5+ Kg2 De2+ Kg1 Kf7 Tc7+ Ke8
13/25 14:10 227.751.379 268.011 +0.90 Kxh4 g5+ Kxh5 Kg7 Dxf5 Le2+ f3 Lxf3+
Dxf3 Dg6+ Kg4 Te4+ Kh3 g4+ Dxg4 Txg4 Le1 De6 Tc7+ Kg8 Tc8+ Kf7 T2c5
14/25 18:14 298.859.862 273.097 +0.90 Kxh4 g5+ Kxh5 Kg7 Dxf5 Le2+ f3 Lxf3+
Dxf3 Dg6+ Kg4 Te4+ Kh3 g4+ Dxg4 Txg4 Le1 De6 Tc6 De4 Tb6 Tg5 Tc7+ Kg8 Txb5 Dxe3
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