Author: Pallav Nawani
Date: 01:06:46 06/10/05
Go up one level in this thread
On June 09, 2005 at 23:59:48, Daniel Shawul wrote:
>Bxe4 is the suggested best move at this position.
>My engine can't find it even after a very long time.
>Is it a zugzwang problem?
>8/3p4/p1bk3p/Pp6/1Kp1PpPp/2P2P1P/2P5/5B2 b - -
>where can i find complete analysis of these positions?
>Daniel
Although Natwarlal finds it easily, but its search is very unstable here (see
what is happening at ply 18 onwards). I think a null move problem is possible.
Try disabling NULL move when only pawns are left and see what happens. Meanwhile
I will check why Natwarlal has a unstable search here!!
7 00:00:00 -30 3KN Kd6e5 Kb4c5 Bc6xe4 f3xe4 h6h5 g4g5 Ke5xe4
7 00:00:00 20 5KN Bc6xe4 f3xe4 f4f3 Bf1xc4 b5xc4 Kb4xc4 f3f2
7 00:00:00 20 5KN Bc6xe4 f3xe4 f4f3 Bf1xc4 b5xc4 Kb4xc4 f3f2
8 00:00:00 62 7KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 Ke5xe4
Kb4c5
8 00:00:00 62 8KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 Ke5xe4
Kb4c5
9 00:00:00 86 10KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 Ke5xe4
Kb4c5 d7d5
9 00:00:00 86 11KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 Ke5xe4
Kb4c5 d7d5
10 00:00:00 84 14KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 Ke5xe4
Kb4c5 f3f2 Bf1g2+ Ke4e5
10 00:00:00 84 16KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 Ke5xe4
Kb4c5 f3f2 Bf1g2+ Ke4e5
11 00:00:00 82 24KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Bf1xc4 b5xc4 Kb4xc4 Ke5xe4
11 00:00:00 82 27KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Bf1xc4 b5xc4 Kb4xc4 Ke5xe4
12 00:00:00 108 44KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 f3f2 Bf1g2+ Ke4e5
12 00:00:00 108 48KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 f3f2 Bf1g2+ Ke4e5
13 00:00:00 122 88KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 f3f2 Bf1g2+ Ke4e5 Bg2f1
13 00:00:00 122 94KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 f3f2 Bf1g2+ Ke4e5 Bg2f1
14 00:00:00 113 159KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 f3f2 Bf1e2 d6d5 Kb4c5
14 00:00:00 113 172KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 f3f2 Bf1e2 d6d5 Kb4c5
15 00:00:01 136 305KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 Ke4e5 Kb4a3 d6d5 Ka3b4 f3f2
15 00:00:01 136 319KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 Ke4e5 Kb4a3 d6d5 Ka3b4 f3f2
16 00:00:02 148 603KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 Ke4e3 Kb4a3 d6d5 Ka3b4 Ke3f2
Kb4c5 Kf2xf1 Kc5xd5
16 00:00:02 148 632KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 Ke4e3 Kb4a3 d6d5 Ka3b4 Ke3f2
Kb4c5 Kf2xf1 Kc5xd5
17 00:00:04 159 1097KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 Ke4e3 Kb4a3 Ke3f2 Bf1xc4 b5xc4
Ka3b4 d6d5
17 00:00:04 159 1166KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 Ke4e3 Kb4a3 Ke3f2 Bf1xc4 b5xc4
Ka3b4 d6d5
18 00:00:04 8 1335KN Bc6xe4 f3xe4
18 00:00:15 8 4932KN Bc6xe4?? f3xe4 (f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 Ke4e3 Kb4a3 Ke3f2 Bf1xc4 b5xc4
Ka3b4 d6d5 Kb4c5 Kf2e3 )
18 00:00:19 169 6165KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 Ke4e3 Kb4a3 Ke3f2 Bf1xc4 b5xc4
Ka3b4 Kf2g2 Kb4xc4 Kg2xh3
18 00:00:19 169 6165KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 Ke4e3 Kb4a3 Ke3f2 Bf1xc4 b5xc4
Ka3b4 Kf2g2 Kb4xc4 Kg2xh3
19 00:00:20 18 6282KN Bc6xe4 f3xe4
19 00:00:29 18 9049KN Bc6xe4?? f3xe4 (f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 Ke4e3 Kb4a3 Ke3f2 Bf1xc4 b5xc4
Ka3b4 Kf2g2 Kb4xc4 Kg2xh3 )
19 00:00:41 169 13242KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 Ke4e3 Kb4a3 Ke3f2 Bf1xc4 b5xc4
Ka3b4 Kf2g2 Kb4xc4 Kg2xh3
19 00:00:41 169 13242KN Bc6xe4 f3xe4 f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 Ke4e3 Kb4a3 Ke3f2 Bf1xc4 b5xc4
Ka3b4 Kf2g2 Kb4xc4 Kg2xh3
20 00:00:42 18 13511KN Bc6xe4 f3xe4
20 00:01:08 18 22154KN Bc6xe4?? f3xe4 (f4f3 Kb4a3 Kd6e5 Ka3b4 d7d6
Kb4a3 Ke5xe4 Ka3b4 Ke4e3 Kb4a3 Ke3f2 Bf1xc4 b5xc4
Ka3b4 Kf2g2 Kb4xc4 )
20 00:02:14 224 46540KN Bc6xe4 Bf1g2 Be4xc2 Bg2f1 Kd6d5 Bf1g2 d7d6
Bg2f1 Bc2g6 Bf1g2 h6h5 Bg2f1 h5xg4 h3xg4 Bg6d3
Bf1g2 Kd5e5 Bg2h3 d6d5 Kb4c5
20 00:02:14 224 46540KN Bc6xe4 Bf1g2 Be4xc2 Bg2f1 Kd6d5 Bf1g2 d7d6
Bg2f1 Bc2g6 Bf1g2 h6h5 Bg2f1 h5xg4 h3xg4 Bg6d3
Bf1g2 Kd5e5 Bg2h3 d6d5 Kb4c5
21 00:02:29 73 51821KN Bc6xe4 f3xe4
Pallav
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