Author: leonid
Date: 05:56:52 08/08/01
Go up one level in this thread
On August 07, 2001 at 13:33:24, Heiner Marxen wrote: >On August 04, 2001 at 15:56:13, leonid wrote: > >>On August 04, 2001 at 15:13:24, Angrim wrote: >> >>>On August 04, 2001 at 09:01:36, leonid wrote: >>> >>>>Hi! >>>> >>>>Are you ready for solving some mate? Here is one: >>>> >>>>[D]q1qk1q1q/q1qrrq1q/1bQq1Qb1/1Q1QQ1Q1/BNn2nNB/1Q4Q1/3Q4/R2K3R w - - >>>> >>>>Please indicate your result. >>>> >>>>Thanks, >>>>Leonid. >>> >>>proved that move f6xe7 wins, 12 turns >>>PN2:4523172 evals, 98612 expands, 30.16 seconds >> >>This time we found mate by selective at the same depth but your probably is more >>quick. >> >>12 moves selective in 105 sec. Celeron 600. No hash. >> >>By brute force I stopped searching before 8 moves. 7 moves took 18 min and 57 >>sec. > >Hello Leonid, hello Angrim! > >Unfortunately, Chest is not much faster: "no mate in 8" after 38.1 minutes >on a K7/600 with 350 MB hash. The effective branching factor is beetween >8 and 10, so more depth would cost a lot of time. And depth 12 is not >reachable for Chest, here. Sorry. > >Cheers, >Heiner Hi, Heiner! Thanks for 8 moves! My branching factor was 9.37, 9.96 and 11.67 between 4 moves and 7, that I look by brute force. Your branching is lose to mine or better. My time was, starting with 4 moves: 1.043 sec, 9.78 sec, 97 sec, 18 min 57 sec. Cheers, Leonid.
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