Author: Mike S.
Date: 05:21:46 06/09/01
Go up one level in this thread
On June 08, 2001 at 06:22:50, Ferdinand S. Mosca wrote:
>On June 08, 2001 at 05:57:27, Mike S. wrote:
>
>>On June 08, 2001 at 01:53:58, Ferdinand S. Mosca wrote:
>>(...)
>>>[D]8/8/1n6/2b2B2/5B1k/3p4/5P2/5K2 b - - 0 62
>>(...)
>>3. BB vs. N should need *more than 50 moves* - obviously
>>Crafty knows that - so Bxf2 "simply" draws!
>Interesting, but this maybe unclear as Comet will first hunt the
>knight which is what actually happened in the game!!
After some analysis, I must say I have some doubt now too, about Bxf2. 1st, I
admit that I forgot that the 50 move count is restartet as soon as white can
play BxN. Furthermore white can *delay* taking the d3 pawn and indeed start
hunting the knight right away as you say...:
The following moves are by Shredder 5 with 4-piece tbs *and* 5-piece Thompson
databases, after entering 1...Bxf2 manually:
[Event "?"]
[Site "?"]
[Date "2001.06.09"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/8/1n6/2b2B2/5B1k/3p4/5P2/5K2 b - -"]
1... Bxf2 {entered manualy, and switched to comp-comp}
2. Kxf2 Nd5 3. Bd2 Ne7 4. Be6 Ng6 5. Ke3 Nf8 6. Bf5 Kg5
7. Bxd3 Ng6 8. Ke4+ Kf6 9. Bc4 Ne7 10. Bc3+ Kg5 11. Be1 Ng6
12. Ba5 Nf8 13. Bd8+ Kg6 14. Bh4 Nh7 15. Ke5 Ng5 16. Bd3+
Kh5 17. Bf2 Kg4 18. Be2+ Kh3 19. Be3 Kh4 20. Bd2 Nh3
21. Be1+ Kg5 22. Bb5 Kg6 23. Be8+ Kg5 24. Ke4 Ng1 25. Bb5
Nh3 26. Bd7 Ng1 27. Ke3 Kf6 28. Bf2 Ke7 29. Bg4 Kf6
30. Bxg1 Ke5 31. Bh2+ Kd5 32. Kd3 Kc5 33. Be6 Kb5 34. Kd4
Ka5 35. Kc4 Ka6 36. Kc5 Ka5 37. Bb3 Ka6 38. Kc6 Ka5 39. Bd6
Ka6 40. Bb4 Ka7 41. Kc7 Ka6 42. Bc4+ Ka7 43. Bc5+ Ka8
44. Bd5#
Furthermore, after removing the d3 pawn from the position after Bxf2, the
Thompson's said:
[Event "?"]
[Site "?"]
[Date "2001.06.09"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/8/1n6/5B2/5B1k/8/5b2/5K2 w - -"]
1. Kxf2 Nd5 2. Bd2 Ne7 3. Bd7 Kh5 4. Ke3 Kg5 5. Ke4+ Kf6
6. Be1 Ng6 7. Bg4 Kg5 8. Be2 Nf8 9. Ba5 Kf6 10. Bc4 Ne6
11. Bc3+ Ke7 12. Ke5 Nf8 13. Bb4+ Ke8 14. Be2 Kf7 15. Bh5+
Kg7 16. Bc3 Ng6+ 17. Kf5+ Kh6 18. Bd1 Nf8 19. Ba1 Ng6
20. Bd4 Nf8 21. Ba4 Nh7 22. Be8 Nf8 23. Kf6 Nh7+ 24. Kf7
Ng5+ 25. Kg8 Ne6 26. Be3+ Ng5 27. Kf8 Kh7 28. Bxg5 Kh8
29. Ba4 Kh7 30. Bc2+ Kh8 31. Bf6#
Did we miss something?
Maybe it was one of these incomplete tbs problems, because 6-piece situations
are involved?
Regards,
M.Scheidl
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