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Subject: Re: Hossa - Crafty : bishop endgame

Author: Peter McKenzie

Date: 01:56:00 10/27/99

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On October 27, 1999 at 02:59:15, Steffen Jakob wrote:

>Hi all!
>
>Hossa played the following blitz game (5 3 u) against Crafty at ICC (thanx Bob
>for allowing Hossa to play as many games as I want ;-):
>
>[Event "ICS unrated blitz match"]
>[Site "204.178.125.65"]
>[Date "1999.10.27"]
>[Round "-"]
>[White "Hossa"]
>[Black "crafty"]
>[Result "1/2-1/2"]
>[WhiteElo "2398"]
>[BlackElo "3251"]
>[TimeControl "300+3"]
>
>1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 c6 5. Nf3 Bf5 6. Be2 Na6 7. O-O Nb4
>8. a3 O-O-O 9. Bf4 Nd5 10. Nxd5 Qxd5 11. c4 Qe4 12. Be3 Nh6 13. Ne5 e6 14.
>Bf3 Qh4 15. Bxh6 gxh6 16. Nxf7 Rxd4 17. Qa4 Rxc4 18. Qxa7 Ra4 19. Qe3 Rg8
>20. Rfd1 Kc7 21. Qe5+ Kb6 22. Rd7 Qf4 23. Rxb7+ Kxb7 24. Qb5+ Ka7 25. Bxc6
>Qb4 26. Qxb4 Rxb4 27. axb4+ Kb6 28. b5 Bg7 29. Nd6 Kc5 30. Nxf5 exf5 31.
>Rb1 Rd8 32. b4+ Kb6 33. Kf1 Rd4 34. Rb3 f4 35. Ke2 Rc4 36. Rd3 Bd4 37. Rf3
>Bf6 38. Rh3 Bg7 39. Kf3 Rc3+ 40. Kxf4 Rxh3 41. gxh3 Bd4 42. f3 Bc3 43. h4
>Bxb4 44. Kf5 Bd6 45. h3 Kc7 46. Kf6 Bf4 47. Kg7 Kd6 48. Kxh7 Be3 49. Kg6
>Ke6 50. b6 Bxb6 51. Kxh6 Kf5 52. Bd7+ Kf6 53. Kh7 Bc7 54. h5 Kg5 55. h6 Bf4
>56. h4+ Kf6 57. Bc6 Bd2 58. Be4 Kf7 59. Bd5+ Kf6 60. Bc4 Bf4 61. Bd5 Bd2
>62. Bc4 Bf4 63. Bd5 Bd2
>{Game drawn by repetition} 1/2-1/2
>
>Hossa should have won this game. The problem was that he always thought that he
>had a big advantage and therefore exchanged to a drawn endgame. Hossa had 3
>pawns and one bishop and Crafty only one bishop. Unfortunately the bishops where
>on different colored squares. Nevertheless Hossa thought it had a big advantage.
>What does your program say e.g. about the position after e.g. move #51:
>
>8/8/1bB4K/5k2/7P/5P1P/8/8 w - - 0 52

A quick 10ply search by LambChop gives a score of +1.6 pawns to white.  So I
have some smarts in there that reduce the score quite a bit, but not enough to
know its drawn.

>
>Best wishes,
>Steffen.



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