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Subject: Re: A curious endgame position between CM6000 and Wcrafty 16.3...opinions?

Author: Micheal Cummings

Date: 05:30:21 01/25/99

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On January 25, 1999 at 07:58:59, Laurence Chen wrote:

>Black should be able to pull a win because of the outside passed pawn.
>
>On January 25, 1999 at 04:05:32, Havergal Brian wrote:
>
>>The following was a game played on a PPro 233.
>>Pondering was on for both due to CM 50% CPU hogging deal.
>>CM averages around 6-7K nps while wcrafty does around 60K nps in this
>>configuration.  Not bad.  Match is game/30min.
>>Hash for both was 20MB.  Wcrafty does NOT use Tablebases...those really
>>help a great deal.
>>Breakdown:  CM gets what appears to be an advantage out of the opening
>>with more space.  Wcrafty is left in a position that Steinitz would have
>>been proud of.  Lo and behold, wcrafty extricates itself out of the "bind"
>>and proceeds to win a pawn.  In the endgame, all forward progress is
>>stunted...anyone know how the final position should be decided?
>>
>>[Event "Computer chess game"]
>>[Site "MASTER"]
>>[Date "1999.01.25"]
>>[Round "-"]
>>[White "chessmaster 6000"]
>>[Black "wcrafty-16_3"]
>>[Result "*"]
>>[TimeControl "1800"]
>>
>>1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Bg5 Bb4+ 5. Nc3 h6 6. Bxf6 Qxf6 7. e3 O-O
>>8. Be2 dxc4 9. Bxc4 Nc6 10. O-O Qe7 11. Qc2 Bd7 12. Rfc1 Rac8 13. a3 Bd6
>>14. b4 Qf6 15. Ne4 Qe7 16. Rab1 Rfe8 17. Bd3 e5 18. b5 Nd8 19. Nxe5 Bxe5
>>20. dxe5 Qxe5 21. Nc5 Re7 22. Be4 b6 23. Bh7+ Kf8 24. Nxd7+ Rxd7 25. Be4
>>Kg8 26. f4 Qe7 27. a4 Ne6 28. Re1 Rcd8 29. Re2 Nc5 30. Bh7+ Kf8 31. Bf5 Rd5
>>32. Rc1 Qd6 33. Be4 Rd2 34. Rxd2 Qxd2 35. Qxd2 Rxd2 36. Bf3 Ra2 37. Bd1 Ra3
>>38. Rc4 Rxe3 39. Kf2 Ra3 40. Bc2 Ke7 41. Ke2 Ra2 42. Ke3 Kd6 43. Rd4+ Ke6
>>44. Rc4 Ra3+ 45. Kd4 Kd6 46. f5 a6 47. Rb4 axb5 48. axb5 c6 49. bxc6 Kxc6
>>50. Rc4 Ra7 51. Kc3 b5 52. Rg4 f6 53. Be4+ Nxe4+ 54. Rxe4 Kd5 55. Rg4 Kc5
>>56. Kb3 Re7
>>
>>
>>From here on, the two programs played around in endless rookplay which I
>>cut short.  Anyone know if this is a draw or win for black?  I don't believe
>>infiltration with the black king will get anywhere but who knows.


Playing CM6K on a single PC against another program I do not like. And I find
that it hampers the the programs play. It likes to hog the CPU so let it. Not
letting it have the power and space it wants is like cutting a runners legs off.

I have played CM6K against Shredder 2 on a simgle PC and had it also played the
game with CM6K by itselt on another computer and anylysing the game at the same
time controls. And I found that the play and analysis was very different. That
is why I do not like playing program on the same computer. The results are very
dubious.

And yes I do know what to do to play 2 programs on one computer and set
everything up correct, but CM likes power. so give it to it if you want its best



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