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Subject: Re: Two test position from the same game

Author: Bryan Hofmann

Date: 04:15:37 05/22/04

Go up one level in this thread


On May 22, 2004 at 04:32:07, Kurt Utzinger wrote:

>[D]3r1rk1/2pqnppp/p7/1p1pP2b/nP6/2P2N2/P1B2PPP/R1BQR1K1 w - - 0 18
>Sokolov,A vs Kortschnoj,V (Variation)
>Position after 17...Na4? when White wins with 18.Bxh7!
>Which program does find this bishop sacrifice?

Tao57-2 Beta
 1   00:01  0.15   Bxa4 bxa4
 1   00:01  0.52   Bd2
 2   00:01  0.37   Bd2 Nf5
 3   00:01  0.49   Bd2 Qc6 Re3
 4   00:01  0.42   Bd2 Nb6 Qe2 Nc4
 5   00:01  0.37   Bd2 Nf5 Bxa4 bxa4 Qe2 Ra8
 5+  00:01  0.37   Bxa4
 5   00:01  0.64   Bxa4 bxa4 Bg5 Kh8 Qd3
 6   00:01  0.53   Bxa4 bxa4 Bg5 Rfe8 Qd3 Qb5
 7   00:01  0.47   Bxa4 bxa4 Bg5 Rfe8 Qd3 Qb5 Rad1 Qxd3 Rxd3
 8   00:01  0.47   Bxa4 bxa4 Bg5 Rfe8 Qd3 Qb5 Rad1 Qxd3 Rxd3
 9   00:01  0.28   Bxa4 bxa4 Bg5 Rde8 Bf4 Ng6 Bg3 f6 e6 Rxe6 Rxe6 Qxe6 Bxc7
 9+  00:01  0.28   Bxh7+
 9   00:02  0.58   Bxh7+ Kxh7 e6 Qc6 Ng5+ Kg6 g4 Bxg4 Qxg4 f5 Qh4 Nxc3
10   00:05  0.58   Bxh7+ Kxh7 e6 Qc6 Ng5+ Kg6 g4 Bxg4 Qxg4 f5 Qh4 Nxc3
11   00:42  0.78   Bxh7+ Kh8 Bc2 Nxc3 Qd4 Ne4 Bxe4 Nc6 Qxd5 Qxd5 Bxd5 Rxd5
12   01:12  0.58   Bxh7+ Kh8 Bc2 Nxc3 Qd4 Ne4 Bxe4 Nc6 Qc5 dxe4 e6 Qd5 e7 Qxc5
exd8Q Rxd8 bxc5 exf3
13   02:23  0.92   Bxh7+ Kh8 Bc2 Nxc3 Qd3 Ne4 Ng5 Nc6 e6 fxe6 Nxe4 Nxb4 Qh3 Qf7
14   04:03  0.88   Bxh7+ Kh8 Bc2 Nxc3 Qd3 Ne4 Ng5 Nc6 e6 fxe6 Nxe4 Qf7 Be3 Nxb4
Ng5 Nxd3 Nxf7+ Bxf7 Bxd3


>
>[D]8/2p3pp/8/1RrkP3/8/3K4/6PP/8 w - - 0 42
>Sokolov,A vs Kortschnoj,V
>Position after 41...Rxc5
>The exchange of rooks leads to a lost pawn end game for White
>Which program does avoid 42.Rxc5?
>
Tao57-2 Beta
 1   00:00  0.29   Rxc5+ Kxc5
 2   00:00  0.74   Rxc5+ Kxc5 Ke4
 3   00:00  0.39   Rxc5+ Kxc5 Ke4 c6
 4   00:00  0.39   Rxc5+ Kxc5 Ke4 c6 e6
 5   00:00  0.44   Rxc5+ Kxc5 Ke4 c6 e6 Kd6
 6   00:00  0.44   Rxc5+ Kxc5 Ke4 g6 g4 c6 g5
 7   00:00  0.44   Rxc5+ Kxc5 Ke4 g6 h3 c6 e6 Kd6
 8   00:00  0.41   Rxc5+ Kxc5 Ke4 g6 g4 h6 h3 c6 h4
 9   00:00  0.48   Rxc5+ Kxc5 Ke4 g6 g4 h6 h3 g5 e6 Kd6
10   00:00  0.49   Rxc5+ Kxc5 Ke4 g6 g3 c6 g4 h6 h4 g5 e6
11   00:00  0.57   Rxc5+ Kxc5 Ke4 h5 g3 g6 h3 Kc6 Kd4 g5 Ke4 h4
12   00:01  0.50   Rxc5+ Kxc5 Ke4 h5 g3 g6 h3 Kc6 Kd4 g5 h4 g4 e6
13   00:02  0.46   Rxc5+ Kxc5 Ke4 Kc6 g4 Kd7 g5 Ke6 h4 c5 h5 c4 g6 hxg6 hxg6
14   00:03  0.15   Rxc5+ Kxc5 Ke4 Kc6 g4 Kd7 g5 Ke6 h4 c5 h5 c4 g6 hxg6 hxg6 c3
15   00:06 -0.01   Rxc5+ Kxc5 Ke4 Kc6 h3 Kd7 Kf5 c5 e6+ Kd6 e7 Kxe7 Ke5 c4 Kd4
Kd6 Kxc4
16   00:14 -0.12   Rxc5+ Kxc5 Ke4 Kc6 Kd4 Kd7 Kd5 c6+ Ke4 Ke6 h4 c5 g4 c4 Kd4 c3
Kxc3 Kxe5
17   00:32 -0.12   Rxc5+ Kxc5 Ke4 Kc6 h4 Kd7 Kf5 c5 e6+ Kd6 g4 h6 h5 c4 Ke4 c3
Kd3 c2 Kxc2 Kxe6
18   00:54 -0.12   Rxc5+ Kxc5 Ke4 Kc6 Kf5 Kd7 e6+ Ke8 h4 Ke7 g4 c5 Ke5 c4 Ke4
Kxe6 Kd4 c3 Kxc3 Kd5
19   02:12 -0.16   Rxc5+ Kxc5 Ke4 h5 Kf5 Kd5 g3 c5 e6 Kd6 e7 Kxe7 Ke5 c4 Kd4 Kd6
Kxc4




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