Author: leonid
Date: 17:23:43 12/22/01
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On December 22, 2001 at 17:21:52, Heiner Marxen wrote: >On December 22, 2001 at 09:21:12, leonid wrote: > >>Hi! >> >>This one is very accessible: >> >>[D]2qQQq2/r6P/b1PqqR1N/r6B/n1BRQQ1B/q6k/q1NKNP1q/bq4qn w - - > >According to Chest this is a mate in 9. And yes, it is easy: just 101 seconds >on my K7/600: Hi, Heiner! Your time look like very good. When I saw your time I wanted to go back and see my for nine moves for brute force, but finally forgot to try this. Had very busy day with my work that I brought home. At least, time for brute force up to 8 moves is: Moves Time Branching factor NPS 4 0.82 sec 91k 6.6 5 5.43 sec 71k 5.8 6 31.8 sec 59k 4.97 7 2 min 35 sec 51k 4.13 8 10 min 41 sec 51k Cheers, Leonid. >PV: Q8xe6+ Qdxe6 Rd3+ Ng3 Bxe6+ Qaxe6 Bg4+ Qxg4 Qxg4+ Qxg4 Qxg4+ Kg2 Qf3+ Kh3 >Nf4+ Kxh4 Qg4# > >The second one is not yet ready :-) > >Cheers, >Heiner
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