Author: John Merlino
Date: 11:54:00 02/08/03
Go up one level in this thread
On February 08, 2003 at 08:31:38, David Rasmussen wrote:
>Haunted by passers again:
>
>[Event "ICS Rated Standard match"]
>[Site "chessclub.com"]
>[Date "2003.02.08"]
>[Round "-"]
>[White "PostModernist"]
>[Black "Chezzz"]
>[Result "1-0"]
>[WhiteElo "2362"]
>[BlackElo "2402"]
>[TimeControl "3600+10"]
>
>1. e4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 d6 5. d3 e6 6. Nf3 Nc6 7. O-O Nge7 8.
>Be3 Nd4 9. Qd2 O-O 10. Bh6 e5 11. Bxg7 Kxg7 12. Rfe1 Qb6 13. Rab1 Qa5 14.
>Qg5 Nxf3+ 15. Bxf3 Nc6 16. Bg2 Be6 17. a3 Nd4 18. Qc1 Rac8 19. h3 Qd8 20.
>Ra1 Qd7 21. g4 Rh8 22. a4 h5 23. f3 hxg4 24. fxg4 c4 25. dxc4 Bxc4 26. Qd1
>Qc7 27. a5 b5 28. b4 Bd3 29. cxd3 Qxc3 30. Rb1 Qa3 31. Rf1 Rc2 32. Kh1 Rhc8
>33. Qe1 Rxg2 34. Kxg2 Qxd3 35. Rc1 Rxc1 36. Qxc1 Qxe4+ 37. Kh2 Qe2+ 38. Kg3
>Qc4 39. Qxc4 bxc4 40. Kg2 d5 41. Rd1 Nc2 42. Rb1 Na3 43. Ra1 Nb5 44. Kf3 f5
>45. gxf5 gxf5 46. Rg1+ Kf6 47. h4 Nd4+ 48. Kf2 Ne6 49. b5 c3 50. b6 axb6
>51. axb6 Nd8 52. h5 c2 53. h6 c1=Q 54. Rxc1 Kg6 55. Rc7 e4 56. h7 Ne6 57.
>h8=Q f4 58. Re7 Kf5 59. Qh3+ Ke5 60. Qxe6+ Kd4 61. Rc7 e3+ 62. Kf3 e2 63.
>Qf6+ Kd3 64. Qc3#
>{Chezzz checkmated} 1-0
>
>It seems that blacks 49th move was a big mistake, but I suspect other black
>moves before were too. Again, it seems that Chezzz has problems with the passers
>(the theme of CCT5 for Chezzz). Can someone point out:
>
>1. What are the really wrong moves?
>2. What key concept is being misunderstood here? Outside passers? Hidden
>passers?
>
>/David
I'll attempt to guess where Chezzz went out of book again, ok? :-) I'll guess
that the first non-book move was 6...e6. I can't find that move in any database,
and CM9000 has 6...Nf6 in its book, AND that move (e6) appears to lose at least
1/4 of a pawn.
Note, the following analysis was done fairly quickly on a fairly slow machine.
But it might prove to be of some use.
CM9000 is also pretty happy with 14...f6 (eval about -0.5) and 19...c4 (ditto).
CM9000 really likes 32...Qa2 (eval over -3). 32...Rhc8 is about 3/4 pawn less.
38...Qc4 is a blunder (eval about -1.3), whereas 38...Qd3+ is almost -4.4. The
full PV is 38...Qd3+ 39.Kg2 Ne2 40.Qe1 Nf4+ 41.Rxf4 exf4 42.h4 a6 43.h5 Kh6
44.hxg6 Kxg6 45.Kf2 Qg3+ 46.Kf1 Qh3+ 47.Kf2 Qxg4
After 47...Nd4+, White has equalized. CM9000 prefers 47...e4+, but not by much.
By 51...Nd8, White is clearly winning....
jm
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