Author: Yar
Date: 14:47:03 07/15/04
Go up one level in this thread
shredder 8 depth=22/48 -+ -1.92 .. qe3
On July 15, 2004 at 16:10:10, John Merlino wrote:
>On July 15, 2004 at 10:31:12, Eduard Nemeth wrote:
>
>>A hard endgame Position!
>>
>>First the game:
>>
>>[Event "14th Asian Cities"]
>>[Site "?"]
>>[Date "2004.??.??"]
>>[Round "9"]
>>[White "Ak Hadfizon, Pg Mo Omar"]
>>[Black "Nolte, R."]
>>[Result "0-1"]
>>[ECO "B87"]
>>[BlackElo "2385"]
>>[PlyCount "86"]
>>[EventDate "2004.??.??"]
>>
>>1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. Bc4 e6 7. Bb3 b5 8. a3
>>Bb7 9. f3 Nbd7 10. Be3 Rc8 11. Qd2 Ne5 12. Bg5 h6 13. Bf4 Qb6 14. Be3 Qc7 15.
>>Rd1 Nc4 16. Bxc4 Qxc4 17. Qd3 Be7 18. O-O O-O 19. Nb3 Qc7 20. Rf2 d5 21. exd5
>>Nxd5 22. Nxd5 Bxd5 23. f4 Rfd8 24. Qf1 Bxb3 25. Rxd8+ Rxd8 26. cxb3 Bc5 27.
>>Bxc5 Qxc5 28. Kh1 {Testposition: nun Qxf2! und das Bauernendspiel ist analog
>>der Partie, leicht gewonnen.} Qxf2 $1 29. Qxf2 Rd1+ 30. Qg1 Rxg1+ 31. Kxg1 Kf8
>>32. Kf2 Ke7 33. Ke3 Kd6 34. Kd4 f6 35. b4 e5+ 36. fxe5+ fxe5+ 37. Ke4 Ke6 38.
>>g4 g6 39. h4 h5 40. gxh5 gxh5 41. b3 Kf6 42. a4 Ke6 43. a5 Kd6 0-1
>>
>>Ak Hadfizon,P - Nolte,R, 14th Asian Cities 2004
>>
>>[D]3r2k1/5pp1/p3p2p/1pq5/5P2/PP6/1P3RPP/5Q1K b - - 0 1
>>
>>Black played strong now Qxf2!
>>
>>Black can easy win the pawn b3, but with Queen or Rook it is not easy to win.
>>After Qxf3 and fallows Rd1+ black win the pawn ending!
>>
>>Test it,
>>
>>Eduard
>
>I think it is going to be VERY unlikely that engines will find this move.
>
>First of all, 28...Rd3 is going to be preferred by engines because it will
>easily win either the b2 or b3 pawn (AND very likely quickly trade off other
>material as well). I think most engines will score Rd3 at about -1.5 for Black
>(CM9_SKR scores it at -1.59).
>
>Additionally, I think that engines will need to see up to at least depth 25 to
>see that Qxf3 is better (or even just as good as) Rd3. With both queens and one
>pair of rooks still on the board in the initial position, this could take a VERY
>long time.
>
>So, while Qxf3 certainly seems like it wins, chess engines are just not going to
>find it in a game FOR THE RIGHT REASONS. I imagine that some engines might find
>it because they evaluate the position as a draw and they have code in them to
>trade off material in drawish positions.
>
>Just surmising....
>
>jm
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