Author: leonid
Date: 14:41:42 12/29/01
Go up one level in this thread
On December 29, 2001 at 09:40:54, Heiner Marxen wrote:
>On December 28, 2001 at 08:37:45, leonid wrote:
>
>>[D]KQQNQRRN/2pnqq1q/5q1k/2BQQq1n/2B1Nq2/2QQNq2/5r2/2bbrq2 w - -
>>
>>Please indicate your result.
>
>According to Chest thisis a mate in 9, with two key moves, but the sulutions
>are basically equal:
>
>PV: Nhxf7+ Qexf7 Nxf5+ Q4xf5 Nxf7+ Qfxf7 Rxf7 Ra2+ Bxa2 Nb6+ Qxb6+ Nf6 Rxh7+
>Qxh7 Bf8+ Qg7 Rh8#
>PV: Ndxf7+ Qexf7 Nxf7+ Qfxf7 Nxf5+ Q4xf5 Rxf7 Ra2+ Bxa2 Nb6+ Qxb6+ Nf6 Rxh7+
>Qxh7 Bf8+ Qg7 Rh8#
>
>On my K7/600 with 350MB hash this needed 5.6 hours. Timing info:
>
># 4 0.33s [ 11.00] 14kN [ 10.00] 1.04 1349- 0
># 5 2.70s [ 8.18] 110kN [ 8.14] 1.23 12057- 0
># 6 20.75s [ 7.69] 908kN [ 8.26] 1.44 93259- 0
># 7 198.84s [ 9.58] 9469kN [ 10.42] 1.62 843070- 0
># 8 2658.52s [ 13.37] 130843kN [ 13.82] 1.89 10444847- 2063600
># 9 20337.74s [ 7.65] 1028023kN [ 7.86] 1.90 76785565- 68037664
Good! I stopped after 8 moves. It look like mine will take long time to solve
it.
Your initial speed is very good, like in previous positions. Mine was:
Move Time Branching factor NPS
4 1.26 sec 156k
8.56
5 10.82 sec 143k
8.27
6 1 min 29 sec 146k
8.46
7 12 min 33 156k
9.04
8 1 h 53 min 32 sec
Cheers,
Leonid.
>Cheers,
>Heiner
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