Author: Michel Langeveld
Date: 08:07:30 05/01/04
Go up one level in this thread
On April 30, 2004 at 23:04:24, Andrew Wagner wrote:
>Here's the position:
>
>[d] 8/7p/5k2/5p2/p1p2P2/Pr1pPK2/1P1R3P/8 b - -
Nullmover needs 13 ply to find it.
Hardware: P3 800Mhz
searching [25,75]
12 1.92 47 840007 1... Ke6 2.h4 h5 3.Rg2 Rb5 4.Rg6+ Kd7 5.Rg5 Rxb2 6.Rxf5
Rb3 7.Ke4 Kd6 {437048}
12 2.92 52 1301964 1... h5 2.h4 Kf7 3.e4 fxe4+ 4.Kxe4 Rb8 5.Kd4 Rc8 6.Ke5
Ke7 7.f5 {445573}
12* 4.16 52 1892641 1... h5 2.h4 Kf7 3.e4 fxe4+ 4.Kxe4 Rb8 5.Kd4 Rc8 6.Ke5
Ke7 7.f5 {455400}
searching [27,77]
13 6.99 47 3223744 1... h5 2.h4 Ke7 3.Rg2 Rb6 4.Rg7+ Kf6 5.Rg2 Rd6 6.Rg1
f7 7.Kf2 d2 8.Ke2 {461524}
13* 11.06 77 5287537 1... Rxb2 {477948}
research 1 [-10000,10000]
13 26.05 355 12107367 1... Rxb2 2.Rxb2 c3 3.Rb6+ Ke7 4.Kf2 c2 5.Rc6 d2 6.Rx
2 d1Q 7.Rc7+ Kd6 8.Rxh7 Qd2+ 9.Kf3 Qd5+ 10.Ke2 Qa2+ 11.Kd3 Qxa3+ 12.Kd4 {464828
13* 26.77 355 12424607 1... Rxb2 2.Rxb2 c3 3.Rb6+ Ke7 4.Kf2 c2 5.Rc6 d2 6.Rx
2 d1Q 7.Rc7+ Kd6 8.Rxh7 Qd2+ 9.Kf3 Qd5+ 10.Ke2 Qa2+ 11.Kd3 Qxa3+ 12.Kd4 {464194
searching [330,380]
14 34.19 361 15724538 1... Rxb2 2.Rxb2 c3 3.Rb6+ Ke7 4.Kf2 c2 5.Rc6 d2 6.Rx
2 d1Q 7.Rc7+ Kf6 8.Rxh7 Qd2+ 9.Kf3 Qd5+ 10.Ke2 Qa2+ 11.Kf3 Kg6 12.Rb7 {459943}
14* 36.94 361 16948523 1... Rxb2 2.Rxb2 c3 3.Rb6+ Ke7 4.Kf2 c2 5.Rc6 d2 6.Rx
2 d1Q 7.Rc7+ Kf6 8.Rxh7 Qd2+ 9.Kf3 Qd5+ 10.Ke2 Qa2+ 11.Kf3 Kg6 12.Rb7 {458837}
searching [336,386]
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