Author: Roy Eassa
Date: 07:43:15 01/28/02
Go up one level in this thread
On January 27, 2002 at 22:08:06, Andrew Smith wrote: >On January 27, 2002 at 19:08:07, Roy Eassa wrote: > >>On January 27, 2002 at 18:22:33, Andrew Smith wrote: >> >>>I don't know about how well programs are to find draws by stalemate. It looks >>>like some have big problems. The lines begins with Rc4. I guess if your program >>>finds the first move the rest should follow. >>> >>>[D]8/p7/P2p1p2/3n4/R2P3K/1p2P1N1/P1p2P1k/Rn6 w KQkq - 0 1 >> >> >>I doubt that any current program/computer can find the draw. >> >>This is what I came up with (using Fritz 7 to help of course!): >> >>1.Rc4! b2 2.Rxc2 bxa1Q 3.f3+! >> >> [3.f4+ Kg1 4.Kh3 Nxe3 5.Rh2 f5! >> (5...d5? 6.f5 Qc3 7.Ne2+ Kf1 8.Nxc3 Nxc3 9.Rb2 Ne2 >> 10.Rb6 Ng1+ 11.Kg3 Nxf5+ 12.Kf4 Nxd4 13.Rxf6 Ke2 >> 14.Ke5 Kd3 15.Rf7 Nge2 16.Kxd5 Nc3+ 17.Kd6 Nxa2 =) >> 6.Ne2+ Kf1 7.Ng3+ Ke1 8.Re2+ Kd1 -+] >> >>3...Kg1 4.Kh3! Nxe3 5.Rh2 f5 6.f4 d5 7.a3! Qxa3 >> >> [7...Qc3? 8.Ne2+ Kf1 9.Nxc3 Nxc3 10.Rb2 Ne2 11.Rb7 Nxf4+ >> 12.Kh4 Nc4 13.Rxa7 +-] >> >>8.Rg2+ Nxg2 stalemate ½-½ >> >> >>Is this correct? > >Just curious, can you post the analysis? I want to see the evals, and depth etc. I obtained the above analysis by manually going up and down the tree of possibilities using Fritz in analysis mode. I.e., Fritz definitely did NOT see the entire thing in advance, or anything close. Thus my comment above, "I doubt that any current program/computer can find the draw." Even given several hours on a fast PC, I don't think Fritz or any other engine would see this through to the draw.
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