Author: Paul
Date: 14:25:22 10/05/01
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On October 05, 2001 at 16:02:14, Paul wrote: >On October 05, 2001 at 12:59:56, leonid wrote: > >>Today, after good explantion of how it must be done, I installed Chest (Heiner's >>mate solver). It do the wonders on brute force search. I went to see some >>positions that otherwise will be too slow for me to solve. It could be that you >>can help me with one position. Your computer and hash could make solution more >>speedy. Mine is Celeron 600Mhz, 64M. This position is actually one from three >>similar positions one of which went to Web. This last was left as less >>accessible. Just say me how far you went, or what solution you found. >> >>[D]kq4BK/pq4QQ/2qqnP2/1NnqQnN1/2QBqB2/5r2/RQ4qr/RQ4bb w - - >> >>Thanks, >>Leonid. > >For now here's what Pretz found: > >00:40 WM12 12 Rxa7+ Q8xa7 Rxa7+ Kb8 Ra8+ Kxa8 Q1a1+ Qca6 Qxa6+ Nxa6 Qc8+ Qdb8 >Qexb8+ Nxb8 Nc7+ Nxc7 Qxb8+ Qxb8 Qxb8+ Kxb8 Qxc7+ Ka8 Qb8# > >A mate in 12 in 40 seconds. > As an exception to my general rule :), I've now tried this one with Chest. Just finished the search for a mate in 10 without result, but in light of the times and factors I can't start a mate in 11 search now, maybe tomorrow. Depth Seconds Factor 6 .48 7 3.32 6.9 8 28.12 8.5 9 266.92 9.5 10 2348.34 8.8 So depth 11 could take about 6 hours. Groetjes, Paul
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