Author: Miguel A. Ballicora
Date: 15:27:39 01/11/02
Go up one level in this thread
On January 11, 2002 at 18:19:38, Roy Eassa wrote: >On January 11, 2002 at 16:42:15, Michael Schmolei wrote: > >>I have already checked a few programs, they don't find it inside 7-8 minutes. >>Perhaps with faster hardware....? >>A study from Kazantsev >> >>[D]1R6/5p2/4P1pb/2K4p/2pB1N1k/4P3/6PP/2q5 w - - >> >> >>http://members.tripod.de/Michaels_Schachpage > > >Fritz couldn't get it on its own in 18 minutes (1.2 GHz), but with the help of >Fritz I was able to find this: > >1.e7! > [1.exf7 Qa3+ 2.Kd5 should also win] >1...Qa3+ 2.Rb4 Qa7+ 3.Kxc4 Qxe7 4.Nxg6+! fxg6 5.Bf6+! Qxf6 > [5...Bg5 6.Bxe7+-] >6.Kd5+! Kg5 > [6...Bf4 7.Rxf4+ Qxf4 8.exf4+-] >7.h4+ Kf5 8.g4+! hxg4 9.Rf4+! Bxf4 10.e4# This is an interesing problem, even my poor program Gaviota sees that. Black can play 7... Bf4 to go to a lost pawn endgame (as spiderchess shows in the PV). The point is not that the program cannot see that advantageous variation but rather to see that the rest of the moves besides e7 are not winning. Gaviota plays exf7 and stick with +2 or something for a long while (with a terrible branghing factor in this position). Regards, Miguel
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.