Author: Günther Simon
Date: 00:54:43 01/19/04
Go up one level in this thread
On January 16, 2004 at 14:48:36, Drexel,Michael wrote:
...snip...
>Bishop endings are the most difficult endings for computers.
>
>Yesterday I removed the a pawn pawn from a recently dicussed position:
>
>[D] 8/8/1p5p/5k2/8/2p3P1/1b1pK1PP/3B4 w - - 0 3
>
>and played it out against Fritz 8, just for fun:
>
>[Event "Blitz:10'"]
>[Site ""]
>[Date "2004.01.15"]
>[Round "?"]
>[White "Drexel"]
>[Black "Fritz 8"]
>[Result "1/2-1/2"]
>[Annotator ""]
>[SetUp "1"]
>[FEN "8/8/1p5p/5k2/8/2p3P1/1b1pK1PP/3B4 w - - 0 3"]
>[PlyCount "67"]
>[TimeControl "600"]
>
>3. Bc2+ {0} Kg5 {6} 4. Kd3 {23} b5 {0} 5. Bd1 {6} Kf5 {6} 6. Bb3 {6} Ke5 {7} 7.
>Bd1 {7} Kd6 {9} 8. g4 {18} Kd5 {0} 9. h4 {9} Ke5 {0} 10. g5 {8} hxg5 {8} 11. h5
>{4} Kf6 {10} 12. g4 {4} Kg7 {13} 13. Bb3 {4} Kh8 {13} 14. Bd1 {2} Kh7 {15} 15.
>Bb3 {26} Kg7 {20} 16. Bd1 {4} Kh6 {9} 17. Bb3 {3} Kh7 {16} 18. Bd1 {3} Kh8 {8}
>19. Bb3 {5} Ba1 {15} 20. Bc2 {5} Kg7 {10} 21. Bb3 {1} Kf6 {9} 22. Ke4 {19} Bb2
>{12} 23. Bc2 {3} Ba3 {9} 24. Bb3 {1} Be7 {11} 25. Kd5 {19} Kg7 {11} 26. Ke6 {2}
>Bf8 {11} 27. Bc2 {3} Bc5 {8} 28. Bb3 {4} Kh6 {12} 29. Kf7 {3} b4 {8} 30. Bd1 {5
>} Bf2 {7} 31. Bb3 {2} Ba7 {9} 32. Bd1 {2} Bd4 {9} 33. Bb3 {2} Be5 {7} 34. Bd1 {
>2} Bc7 {6} 35. Bb3 {2} Bb6 {7} 36. Bd1 {22} 1/2-1/2
>
>[D] 8/5K2/1b5k/6pP/1p4P1/2p5/3p4/3B4 b - - 0 36
>
>Is any engine able to see a draw score?
>
>8/5K2/1b5k/6pP/1p4P1/2p5/3p4/3B4 b - - 0 1
>
>Analysis by Fritz 8:
>
>36...Be3--
> -+ (-5.22) Depth: 7/9 00:00:00 7kN
>36...Be3 37.Kf6 Bf4
> -+ (-5.22) Depth: 7/14 00:00:00 8kN
>36...Be3--
> -+ (-4.93) Depth: 8/14 00:00:00 13kN
>36...Be3 37.Kf6 Bf4 38.Kf5
> -+ (-4.93) Depth: 8/14 00:00:00 13kN
>36...Bc5!
> -+ (-4.97) Depth: 8/17 00:00:00 19kN
>36...Bc5 37.Kf6 Bf8 38.Kf5
> -+ (-5.00) Depth: 8/17 00:00:00 21kN
>36...Bc5--
> -+ (-4.72) Depth: 9/16 00:00:00 33kN
>36...Bc5 37.Kf6 Bf8
> -+ (-4.72) Depth: 9/16 00:00:00 42kN
>36...Bd8!
> -+ (-4.75) Depth: 9/16 00:00:00 45kN
>36...Bd8!
> -+ (-4.90) Depth: 9/16 00:00:00 46kN
>36...Bd8--
> -+ (-4.62) Depth: 10/20 00:00:00 71kN
>36...Bd8 37.Ke6 Ba5 38.Kf5
> -+ (-4.62) Depth: 10/20 00:00:00 84kN
>36...Bg1!
> -+ (-4.65) Depth: 10/20 00:00:00 86kN
>36...Bg1!
> -+ (-4.81) Depth: 10/20 00:00:00 86kN
>36...Bg1 37.Kf6
> -+ (-4.87) Depth: 10/20 00:00:00 91kN
>36...Bg1 37.Kf6 Bh2 38.Kf5 Bc7 39.Bc2 b3
> -+ (-4.62) Depth: 11/20 00:00:00 141kN
>36...Bg1 37.Kf6 Bh2 38.Kf5 Bc7 39.Bc2 b3
> -+ (-4.62) Depth: 12/17 00:00:00 193kN
>36...Bg1 37.Kf6 Bh2 38.Kf5 Bc7 39.Bc2 b3
> -+ (-4.62) Depth: 13/20 00:00:00 280kN
>36...Bg1 37.Ke6 Bf2 38.Bc2 b3 39.Bxb3 c2 40.Bxc2 Bg3 41.Bb3 Bf4 42.Kf5
> -+ (-4.62) Depth: 14/21 00:00:01 629kN
>36...Bg1--
> -+ (-4.34) Depth: 15/22 00:00:01 904kN
>36...Bg1 37.Ke6 Bf2 38.Bc2
> -+ (-4.34) Depth: 15/22 00:00:01 947kN
>36...Bg1 37.Ke6 Bf2 38.Bc2 b3 39.Bxb3 c2 40.Bxc2 Bd4
> -+ (-4.34) Depth: 16/24 00:00:03 2038kN
>36...Bg1--
> -+ (-4.06) Depth: 17/24 00:00:04 3322kN
>36...Bg1 37.Ke6 Bf2 38.Bc2
> -+ (-4.06) Depth: 17/24 00:00:05 3452kN
>36...Bg1--
> -+ (-3.78) Depth: 18/32 00:00:09 7040kN
>36...Bg1 37.Ke6 Bf2 38.Bc2
> -+ (-3.78) Depth: 18/32 00:00:09 7222kN
>36...Bg1--
> -+ (-3.50) Depth: 19/30 00:00:16 13384kN
>36...Bg1 37.Ke6 Bd4 38.Kd5 Bg7 39.Bc2 Bf8 40.Kc4 Kg7 41.Kd3 Kh8 42.Ke2 Kg7
>43.Kd1 Kh6
> -+ (-3.37) Depth: 19/43 00:00:41 34298kN
>36...Bg1 37.Ke6 Bd4 38.Kd5 Bg7 39.Bc2 Bf8 40.Kc4 Kg7 41.Kd3 Bd6 42.Ke2 Bc5
>43.Kd1 Kh6 44.Bb3 Bd4 45.Bc2
> -+ (-3.37) Depth: 20/33 00:00:54 45132kN
>36...Bg1 37.Ke6 Bd4 38.Kd5 Bg7 39.Bc2 Bf8 40.Kc4 Kg7 41.Kd3 Bd6 42.Ke2 Bc5
>43.Kd1 Kh6 44.Bb3 Bd4 45.Bc2 Be5
> -+ (-3.37) Depth: 21/35 00:01:04 54020kN
>36...Bg1 37.Ke6 Bd4 38.Kd5 Bg7 39.Bc2 Bf8 40.Kc4 Kg7 41.Kd3 Bd6 42.Ke2 Bc5
>43.Kd1 Kh6 44.Bb3 Bd4 45.Bc2 Be5 46.Bb3
> -+ (-3.37) Depth: 22/39 00:01:27 74139kN
Hi Michael,
You were of course right about my posted position, but for whatever
reason I did not find convincing winning lines in my little analysis,
sorry for insisting...
At least the position inspired you to construct some other interesting
positions :)
Regards,
Günther
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