Author: leonid
Date: 06:58:31 10/06/01
Go up one level in this thread
On October 06, 2001 at 08:12:46, Tim Foden wrote: >On October 06, 2001 at 07:54:35, leonid wrote: > >>On October 06, 2001 at 05:07:58, Tim Foden wrote: >> >>>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. >>> >>>Pretz did very well to find a mate in 40 seconds! Green Light took over 6 >>>hours! >>> >>> 10 20:53 ++ 671083k Qxb7+ (a=21.81 b=22.61 e=22.61) >>> 10 39:20 +29.914 1392m Qxb7+ Qbxb7 Rxa7+ Kb8 Ra8+ Qxa8 Nxd6+ Qxb2 Qxb2+ >>> Rb3 Rxa8+ Qxa8 Qbxb3+ Qab7 Ndxe4+ Qxe5 Bfxe5+ Nc7 >>> Bxc7+ Ka8 Qxb7+ Kxb7 Nxc5+ Ka8 Bxh2 Bxd4 Qxf5 >>> 10 6:04:59 +Mate12 13318m Nc7+ Qcxc7 Rxa7+ Q8xa7 Rxa7+ Kb8 Rxb7+ Qdxb7 Qxb7+ >>> Qexb7 Qxb7+ Kxb7 Qxc7+ Nxc7 Qb5+ Kc8 Qee8+ Nxe8 >>> Qxe8+ Qd8 Qc6+ Qc7 Qxc7# >>> 10 6:24:27 +Mate12 14263m Nc7+ Qcxc7 Rxa7+ Q8xa7 Rxa7+ Kb8 Rxb7+ Qdxb7 Qxb7+ >>> Qexb7 Qxb7+ Kxb7 Qxc7+ Nxc7 Qb5+ Kc8 Qee8+ Nxe8 >>> Qxe8+ Qd8 Qc6+ Qc7 Qxc7# >>> 11 8:12:18 +Mate12 19413m Nc7+ Qcxc7 Rxa7+ Q8xa7 Rxa7+ Kb8 Rxb7+ Qdxb7 Qxb7+ >>> Qexb7 Qxb7+ Kxb7 Qxc7+ Nxc7 Qb5+ Kc8 Qee8+ Nxe8 >>> Qxe8+ Qd8 Qc6+ Qc7 Qxc7# >>> 11 10:00:11 1/73 Rxa7+ >exit >>> >>>Cheers, Tim. >> >>Hi, Tim! >> >>I don't know if I asked you this some time before but I am curious to know. Do >>you have in your solver equal way written plys, or you have specialized plys? At >>least, now I know already three person that use specialized plys in their >>program; I am one between them. Not everybody do this. Paul, for instance, do >>otherwise and still reach good result. > >No Leonid. My program is a normal chess program. It doesn't have a mate >solving mode, and I don't intend to add one. :) When I started my program I expected that it will be also "normal" chess program. Only my idea (I read nothing before I started programming) was that every chess program look for mate before looking for everything else. Even now mate solver is initial part of my chess program. Chess program is in its unfinished stage with exception of mate solver that work in it. Cheers, Leonid. >Cheers, Tim.
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