Author: José Carlos
Date: 02:21:29 10/16/03
Go up one level in this thread
On October 16, 2003 at 04:57:42, José Carlos wrote:
>On October 16, 2003 at 00:45:26, Will Singleton wrote:
>
>>Here's a position which is fairly easy for most amateurs, but not so for Ruffian
>>(and maybe others). bm e4
>>
>>[D]8/7p/p2b2pB/1p1kp3/1P1p2P1/P2P1K2/1P5P/8 b - g3
>
> Are you sure it's easy for amateurs? Well, my program Anubis gets quicky to
>ply 18 with a wrong move; in ply 19, when it starts analyzing e4 it seems hung.
>I've stopped it after more than 2 hours (PIII 933 with other programs running).
>I guess (haven't had time to study the problem) that the tree explosion has to
>do with checks in qsearch, that I do in the first plies without too much
>control.
> I'll try Averno (no checks in qsearch) to see what happens.
> Could you please post the pv of the solution for I can see where my program is
>incorrectly pruning?
>
> José C.
Mmm, Averno finds it:
13 0.42 85.83 39482986 d6e7 b2b3 e7f6 h6f8 f6g5 h2h3 h7h5 f8c5
g5d2 g4h5 g6h5 a3a4 d2g5 a4a5
13 0.59 177.86 84410613 e5e4
13 0.72 207.90 98625627 e5e4 d3e4 d5c4 h6g7 d4d3 g7c3 c4b3 f3e3
b3c2 c3e1 d6h2 e1c3 h2g1 e3f4 g1b6
14 0.90 466.70 224581303 e5e4 d3e4 d5c4 h6g7 d4d3 g7c3 c4b3 f3e3
b3c2 h2h4 d6e5 c3e1 e5b2 h4h5 b2a3
15 0.99 1488.16 725588262 e5e4 d3e4 d5c4 h6g7 d4d3 g7c3 c4b3 f3e3
b3c2 e3d4 d6h2 a3a4 h2g1 d4d5 d3d2 c3d2
c2d2 a4b5
I'm probably doing some wrong pruning in Anubis, or maybe it's seing something
Averno misses. I'll check it later at home. Thanks for the position.
José C.
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