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Subject: Re: WCCC Round 3 - Why Green Light Chess won !

Author: Tim Foden

Date: 02:30:49 11/25/03

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On November 24, 2003 at 02:28:18, Gerd Isenberg wrote:

>On November 23, 2003 at 20:36:21, Eduard Nemeth wrote:
>
>>English: Green Light hase a mate position, but the annotator have seen that
>>white is to move, and he thinks (I belive it) that white will set mate no black
>>
>>:-)
>>
>>Here possible notation with mate:
>>
>>[Event "[Radio ChessBase]"]
>>[Site "?"]
>>[Date "0000.??.??"]
>>[Round "?"]
>>[White "Ruy Lopez"]
>>[Black "Green Light Chess"]
>>[Result "0-1"]
>>[ECO "D47"]
>>
>>1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8.
>>Bd3 Bb7 9. e4 b4 10. Na4 c5 11. e5 Nd5 12. Nxc5 Bxc5 13. dxc5 Nxc5 14. Bb5+
>>Kf8 15. O-O Qb6 16. Bc4 Qc7 17. Bd2 a5 18. Bxd5 Bxd5 19. Rc1 Qe7 20. Bg5 f6
>>21. exf6 gxf6 22. Bh6+ Ke8 23. Nh4 Ne4 24. Bf4 Nd6 25. Re1 Rc8 26. Rxc8+ Nxc8
>>27. Qa4+ Qd7 28. Qxa5 Ne7 29. Qxb4 Kf7 30. a3 e5 31. Bg3 Rd8 32. Qd2 Kg8 33.
>>Qh6 Qe6 34. b4 Ra8 35. Ra1 Nc6 36. f4 Nd4 37. Kh1 e4 38. Be1 Rc8 39. a4 e3 40.
>>Qh5 Rc4 41. Rd1 e2 42. Rb1 Nc2 43. Rb3 Nxe1 44. Rg3+ Kf8 45. Qxh7 Nf3 46. Qh8+
>>Ke7 47. Rg7+ Qf7 48. Ng6+ Kd7 49. Rxf7+ Bxf7 50. Nf8+ Kc7 51. Ne6+ Kb7 52.
>>Nd8+ Ka7 53. Nc6+ Rxc6 54. Qb8+ Kxb8 55. gxf3 e1=Q+ 56. Kg2 Rc2+ 57. Kh3 Be6+
>>58. f5 Bxf5+  0-1
>>
>>Eduards World:
>>
>>http://www.beepworld.de/members37/computerschach/
>
>
>Hi Eduard,
>
>but the wrong result was not the reason that GLC won ;-)
>Ruy Lopez had superior position before GLC poisoned passer decided the game,
>maybe before 36.f4?
>
>Cheers,
>Gerd

It was certainly a strange game to watch. :)  GLC had a bad line in the opening
book, and once out of book it very soon thought it was -2.5.  Ruy Lopez agreed,
and maybe even thought +3.0 at times.  This stayed steady for a long time, and I
thought it looked very bad for GLC.  But once Ruy Lopez allowed the passed pawn
GLC's eval slowly started to improve.  It kept on doing so all through the rest
of the match.  It was one I certainly didn't expect to win after the opening!

Cheers, Tim.



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