Author: leonid
Date: 12:10:39 01/10/02
Go up one level in this thread
On January 10, 2002 at 05:15:40, Heiner Marxen wrote: >On January 06, 2002 at 17:01:10, Heiner Marxen wrote: > >>On January 05, 2002 at 11:28:41, leonid wrote: >> >>>On January 05, 2002 at 10:10:09, Gian-Carlo Pascutto wrote: >>> >>>>On January 05, 2002 at 08:54:04, leonid wrote: >>>> >>>>>[D]3k1q2/2nnrr2/1qBNRNq1/qQRQBqQP/qQqqqQ1Q/1bb1Q3/4P2K/8 w - - >>>>> >>>>>Please indicate your result. >>>>> >>>>>Thanks, >>>>>Leonid. >>>> >>>>'Trivial' >>>> >>>>P: 0 D: 1705103883 N: 243144 S: 243143 Mem: 6.49M Iters: 3112 MaxDepth: 31 >>>>Time : 1.830000 >>>>This position is WON. >>>>PV: d6f7 d8c8 c6d7 e7d7 c5c7 c4c7 b4f8 d7d8 f8d8 c7d8 e6c6 d8c7 c6c7 b6c7 f4f5 >>>>c7d7 f5d7 >>>> >>>>1.8 seconds >>> >>>Selective time is excellent and slightly better that mine. For mine it was 1.97 >>>sec. 13 moves. Celeron 600Mhz. No hash. >>> >>>It is still possible that somebody will find shorter mate by selective, or by >>>brute force. Heiner have good chance to go far that me by brute force. When I >>>galanced by curiousity into "Chest" result, even for identical conditions, its >>>branching factor was better. With hash it have chance to look up to the end. >>> >>>Cheers, >>>Leonid. >>> >>>>GCP >> >>Hello Leonid, Hello Gian-Carlo (aka Mr.'Trivial' :-) ! >> >>Bad luck for Chest, this time. It does not find a mate in 10, but needs >>already over 5 hours for that and the EBF gets worse: >> >># 4 0.10s [ 5.00] 4kN [ 7.08] 1.07 508- 0 >># 5 0.63s [ 6.30] 26kN [ 6.31] 1.27 3209- 0 >># 6 3.69s [ 5.86] 158kN [ 6.00] 1.46 19409- 0 >># 7 18.73s [ 5.08] 809kN [ 5.12] 1.74 95826- 0 >># 8 137.70s [ 7.35] 6881kN [ 8.50] 1.87 666312- 0 >># 9 1356.73s [ 9.85] 73147kN [ 10.63] 1.98 6076071- 110972 >># 10 18922.80s [ 13.95] 1048759kN [ 14.34] 1.88 79356137- 70608236 >> >>Currently I let it run on depth 11 with estimated 3 days to go. >>An increasing EBF sometimes indicates that a solution is near. >>(All this on my K7/600). > >Sorry, no luck again: No solution in 11 moves. Thanks, Heiner, for 11! I ended with 9 moves, where my solver took already 4 hours and 25 min. Only 12 is not sure. All those shortest mates (when it is possible to find them) are very useful for me, like it was today. I spent entire day with my mate solver and touched more that 2 thousands line of code. By resolving old positions, with shortest mate already indicated, I found that my writing contains some bugs. Probably, will do nothing more today but tomorrow will return to my code with new bug hunt and position verification. Cheers, Leonid. ># 11 287013.38s [ 15.17] 8170431kN [ 7.79] 1.95 1247837291-1239089390 > >I give up. > >Cheers, >Heiner
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