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Subject: Re: How long does it take your program to find Nf6! in this position?

Author: Peter Berger

Date: 10:51:58 10/23/01

Go up one level in this thread


On October 23, 2001 at 13:12:38, Andrew Williams wrote:

>The move 27.Nf6+ wins everything immediately. MoonShot (crafty 18.12
>on  a K7 1.33GHz) found that in 14 seconds (albeit with hash-tables
>already full). With some fiddling about with null move rules, PM can
>find it in 37 seconds from a "standing start" (K7 1.2GHz). I'd be
>interested to know how other programs do on this.
>
>3r1rk1/2n1nppp/1pp1p3/p2qP2Q/P1RPN3/2R5/1P2NPPP/6K1 w - - bm Nf6
>
The latest beta(M5) of Gerrit Reubold's Bringer on Athlon 1333:

0:00:02.6  ( 8/24)     646224   0.43  1.f3 Nf5 2.Qg5 Ne8 3.g4 h6  (Mat=0,50=0)
0:00:03.5  ( 8/26)     884548   0.94  1.Nf6+  (Mat=0,50=1)
0:00:04.4  ( 9/26)    1071892   1.74  1.Nf6+  (Mat=0,50=1)
0:00:08.0  ( 9/28)    2014178   12.59  1.Nf6+ gxf6 2.Rg3+ Kh8 3.Qh6 Ng6 4.Rh3
(Mat=-335,50=5)
0:00:10.6  (10/30)    2963816   12.62  1.Nf6+ gxf6 2.Rg3+
0:00:15.1  (11/30)    4271836   13.02  1.Nf6+  (Mat=0,50=1)
0:00:16.0  (11/30)    4780223   13.42  1.Nf6+  (Mat=0,50=1)
0:00:23.2  (11/32)    7074510   13.45  1.Nf6+ gxf6 2.Rg3+ Ng6 3.Rh3 Nh4 4.Qxh4
Qe4 5.Qxe4

Regards,
pete



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