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Subject: Re: A one move victory by Chess Tiger?

Author: Erkki Malkamaki

Date: 01:24:52 12/30/99

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On December 29, 1999 at 10:21:57, Torstein Hall wrote:

>On December 29, 1999 at 09:52:33, Sergio Martinez wrote:
>
>I found the sacrifice by 29...Rxc8 of a pawn by Chess Tiger impressive. After
>that it was mainly play against one goal, to use soccer terms. How many programs
>want to give that pawn away?
>
>Torstein
>
>>Round 6:
>>DIEP-C.TIGER     0-1
><BIG SNIP>
>>Event "Sp 99"]
>>[Site "?"]
>>[Date "29.12.99"]
>>[Round "6"]
>>[White "Diep"]
>>[Black "Chess Tiger"]
>>[Result "0-1"]
>>
>>1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5
>>8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. Qf3 Bb4+
>>14. Ke2 Rb8 15. Qg3 Qd6 16. Nf3 Qxg3 17. hxg3 Bd6 18. Nxd4 Bd7 19. Bg5 Be5
>>20. Be3 h6 21. f4 Bd6 22. Nf3 b4 23. Bd4 Bc6 24. Rac1 Bd5 25. Bxf6 gxf6
>>26. Bc4 Bb7 27. Bb3 Ke7 28. Kf2 Rbc8 29. Rxc8 Rxc8 30. Rxh6 Rc1 31. Rh5 Rb1
>>32. Nd2 Rxb2 33. Ke2 f5 34. Rh7 Bc5 35. Kd1 Bxg2 36. Rh2 Bc6 37. Re2 Bd4
>>38. Bc4 Ba4+ 39. Nb3 Rb1+ 40. Kd2 Ba7 41. Nc1 Kd6 42. Bd3 Ra1 43. Bc2 Bb5
>>44. Rh2 Bd4 45. Rh1 Ke7 46. Rd1 Bf2 47. Bd3 Bxd3 48. Kxd3 Bxg3 49. Rf1 Bxf4
>>50. Rxf4 Rxc1 51. Rxb4 e5 52. Rb7+ Kf6 53. Rb6+ Kg5 54. Rb5 e4+
>>55. Ke3 Rc3+ 56. Kd4 Rd3+ 57. Kc4 Rd1 58. a4 e3 59. Re5 Kf4 60. Re7 Kf3
>>61. Rxf7 f4 62. Rb7 e2 63. Re7 e1=Q 64. Rxe1 Rxe1 65. a5 Ke4 66. a6 f3
>>67. a7 Ra1 68. a8=Q+ Rxa8 69. Kb5 f2 0-1

Crafty 17.5 also likes 29  - Rxc8 with a score -0.37 ( black better )
After 31. Rh5 whites score drops to -1.02 and after 34.Bc5 to -1.84

Erkki



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