Author: Heiner Marxen
Date: 16:43:52 02/04/01
Go up one level in this thread
On February 03, 2001 at 20:26:29, Tim Foden wrote: >Hi Leonid, > >On February 03, 2001 at 08:35:53, leonid wrote: >>Hi! >> >>If you like to solve position for mate, here is one. >> >>[D]3b2Q1/1qq3RQ/2rqnBNK/2rrn1QN/1k2rb1B/4bbR1/3b2RQ/2b3R1 b - - >> >>Please, say your result. > >Green Light Chess found successively shorter mates: > >Mate in 12: > 7 9.17 320.77 4436599 Bxg5+ Bhxg5 Bxg5+ Rxg5 Bxg5+ Rxg5 Bxg5+ Bxg5 Bxg5+ > Rxg5 Ng4+ Rxg4 Rxh5+ Qxh5 Rxh5+ Kxh5 Bxg4+ Kh6 > Qh2+ Nh4 Qxh4+ Kg6 Nf4# > 7 11.92 320.77 6109848 Bxg5+ Bhxg5 Bxg5+ Rxg5 Bxg5+ Rxg5 Bxg5+ Bxg5 Bxg5+ > Rxg5 Ng4+ Rxg4 Rxh5+ Qxh5 Rxh5+ Kxh5 Bxg4+ Kh6 > Qh2+ Nh4 Qxh4+ Kg6 Nf4# > >Mate in 11: > 8 39.31 320.79 24529k Bxg5+ Rxg5 Bxg5+ Rxg5 Bxg5+ Bhxg5 Bxg5+ <ht> > 8 1:22 320.79 51844k Bxg5+ Rxg5 Bxg5+ Rxg5 Bxg5+ Bhxg5 Bxg5+ <ht> > >Mate in 10: > 9 2:47 320.81 110514k Bxf6 Nxf6 Bxg5+ Rxg5 Bxg5+ Rxg5 Ng4+ Nxg4 Bxg5+ Kh5 > Bd8+ Ne5 Rdxe5+ Bg5 Rxg5+ Kh6 Qxh2+ Nxh2 Qxh2# > 9 4:10 320.81 169935k Bxf6 Nxf6 Bxg5+ Rxg5 Bxg5+ Rxg5 Ng4+ Nxg4 Bxg5+ Kh5 > Bd8+ Ne5 Rdxe5+ Bg5 Rxg5+ Kh6 Qxh2+ Nxh2 Qxh2# > >Mate in 9: > 10 5:30 320.83 229086k Bxf6 Nxf6 Bxg5+ Rxg5 Nxg7 Qhxg7 Qxg7+ Qxg7 Qxg7+ > Kxg7 Qxf6+ Kh7 Rd7+ Ne7 Qf7+ Kh8 Rh6# > 10 11:14 320.83 490307k Bxf6 Nxf6 Bxg5+ Rxg5 Nxg7 Qhxg7 Qxg7+ Qxg7 Qxg7+ > Kxg7 Qxf6+ Kh7 Rd7+ Ne7 Qf7+ Kh8 Rh6# > >Cheers, Tim. Quite interesting progress! Chest says "no mate in 6" after 3.6 minutes on a K7/600 with 60 MB hash. With an effective branching factor over 12 this could take some time, if it is really a mate in 9. Heiner
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.