Author: Paul
Date: 05:37:47 10/28/01
Go up one level in this thread
On October 28, 2001 at 07:29:06, leonid wrote: >On October 27, 2001 at 17:36:53, leonid wrote: > >>On October 27, 2001 at 16:52:40, Paul wrote: >> >>>On October 27, 2001 at 13:06:43, leonid wrote: >>> >>>>Hello! >>>> >>>>I think that the next mate is just in the middle. It is not very hard to solve >>>>and still it is not extremely easy. The best one when you want to be a sure >>>>winner but not at big price. >>>> >>>>[D]bBQQ1nrq/b2NNq1k/K6n/QQqq1q1B/3Q1Q2/3r1qR1/3q2q1/3RQQq1 w - - >>>> >>>>Please indicate your result. >>>> >>>>Thanks, >>>>Leonid. >>> >>>Hi Leonid, > >Hi, Paul, > >>>since Pretz is in the garage at the moment for a revision of the engine, I >>>thought I'd go over and comfort her with your new position. But I think the >>>engineer broke something, because it doesn't find a mate (in 12) very quick: > >This position is mate in 12. Verified it at night by searching 11 moves by brute >force. Took slightly more time that expected, since branching factor jumped >after 10 moves. Three hours and 45 min. 12 was found already by selective. > >Cheers, >Leonid. Ok, so a mate in 12 it is! I only checked until depth 9 with Chest and estimated it would take about an hour to prove that there is no mate in 11, so I stopped. I haven't been able to come up with a faster time ... almost 8 minutes for mine to find the mate in 12. Paul
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