Author: leonid
Date: 18:58:39 10/17/03
Go up one level in this thread
On October 17, 2003 at 17:45:08, William Kerr wrote: >Hi > >I posted the worlds toughest mate in 4 yesterday but I included the wrong epd >string. That was a tough mate in 4 but this one is far far tougher for some >engines. Its probably a null move issue for some engines. > >[D] 5R2/2K5/1pP5/4k2p/3pp3/2p4N/B4N1b/n1R1B2b w - - id BB #1217 mate in 4; > > > >Again this is from Benko's Bafflers from Chess Life magizine. > >Chessmaster 9000 AMD 1.7Ghz 2 sec m4 >pocketFritz 1.0 17 min m16 >GGM Capa module 43 min 25 sec >Crafty 19.3 AMD 1.7Gh 44 min m5 >ruffian 1.0.1 P2 300 mhz 40 sec >star diamond 1 hr & 50 sec m5 >star diamond mate in 4 level 17 sec >yacePdb P2 300 mhz 4 min m6, 5 min m4 >fritz532 8 sec m6, 14 sec m4 >lg2000v27 greater than 10 min less than 18 min >bringer 5 min m9 >waxman 1:08 m4 P2 300 mhz > >Have fun with this one. Thanks for position! LLchess confirm that it is mate in 4 moves. It solve it by brute force in 4 moves in 0.8 sec. Celeron 600Mhz. No hash. Leonid. >Bill
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.