Author: Mark Rawlings
Date: 10:57:54 08/27/99
Go up one level in this thread
I let Crafty with 3+2 tablebases chew on this one overnight after the moves c5 bxc5. After 25 ply, the eval was still +1.07 (Be1 Kc7 Ba5+ Kb8...) This one is really deep! Mark On August 27, 1999 at 13:14:34, Howard Exner wrote: >On August 27, 1999 at 04:54:05, Howard Exner wrote: > >>On August 27, 1999 at 00:00:22, Paulo Soares wrote: >> >>>On August 26, 1999 at 15:26:30, Howard Exner wrote: >>> >>>>On August 26, 1999 at 05:20:10, Paulo Soares wrote: >>>> >>>>>1. c5 really wins? I have my doubts with the following variant: 1.c5 bxc5. >>>>>I didn't still get to find a line that wins. >>>>> >>>>>2k5/p7/Pp1p1b2/1P1P1p2/2P2P1p/3K3P/5B2/8 w - - >>>>> >>>>>Paulo >>>> >>>>1. c5 bxc5 2. Be1 Kb8 3. Kc4 Kc8 4. Ba5 Bd4 5. Bd8 Be3 6. Bg5 Kc7 7. Kd3 >>>>Bc1 8. Bxh4 Bxf4 9. Bd8+ Kc8 10. h4 Be5 11. Ba5 Bg7 12. h5 >>>> >>>>This sequence looks like it should win for white. If there's a better >>>>sequence of moves maybe we can continue to work on it. >>> >>>Good line! I didn't get to find defense for black. >>>I am not getting to find a winner endgame for >>>white with the line below, in which black plays >>>4...Kb8 instead of 4...Bd4. >> >>This is a tough one. I'll try some lines and report back. >>I wonder if the author of this test, Frederic Louguet, has >>the solution somewhere? Also I read another reply to your post saying >>that the solution is a long one but no lines were given. >> >>>Paulo >>> >>>[Round ""?] >>>[White ""?] >>>[Black ""?] >>>[Result " *"] >>>[Annotator " Soares,P "] >>>[SetUp " 1 "] >>>[FEN " 2k5/p7/Pp1p1b2/1P1P1p2/2P2P1p/3K3P/5B2/8 w - - 0 1 "] >>> >>>1. c5 bxc5 2. Be1 Kb8 3. Kc4 Kc8 4. Ba5 Kb8 5. b6 axb6 >>>6. Bxb6 Bd4 7. a7+ Kb7 8. Bc7 Kxa7 9. Bxd6 Kb6 > >Here are some lines that look promising: > > >1. c5 bxc5 2. Be1 Kb8 3. Ba5 Kc8 4. b6 axb6 5. Bxb6 Kb8 6. a7+ Kb7 7. Bc7 >Kxa7 8. Bxd6 Kb6 9. Be5 Be7 10. Kc4 Bf8 11. Bf6 Bd6 12. Bd8+ Kb7 13. Bxh4 >Bxf4 14. Kxc5 Kc7 15. Bf2 Bh6 16. h4 Kd7 17. h5 Bg5 18. Be1 Bh6 19. Kd4 >Bg7+ 20. Kc4 Bh6 21. Bb4 Be3 22. Kd3 Bg5 23. Bd2 f4 24. Ke4 f3 25. Be3 >Kd6 26. Kxf3 Bf6 27. Ke4 Bg7 28. h6 > >1. c5 bxc5 2. Be1 Kb8 3. Ba5 Kc8 4. b6 axb6 5. Bxb6 Kb8 6. a7+ Kb7 7. Bc7 >Be7 8. Bb8 Bf8 9. Kc3 Ka8 10. Kc4 Kb7 11. Kb5 Be7 12. Bc7 Kxa7 13. Kc6 >Ka6 14. Kd7 Bf8 15. Ke8 Kb7 16. Ba5 Bh6 17. Bd2 c4 18. Kd7 c3 19. Be3 Bf8 >20. Ke6 Ka6 21. Kxf5 Kb5 22. Ke6 Kc4 23. f5 Kd3 24. Bg5 c2 25. f6
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