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Subject: Re: Which program plays

Author: Bernhard Bauer

Date: 06:03:30 09/11/98

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On September 11, 1998 at 03:02:18, blass uri wrote:

>
>On September 11, 1998 at 01:23:39, Serge Desmarais wrote:
>
>>On September 11, 1998 at 00:01:10, Roy Brunjes wrote:
>>
>>>
>>>I think the subject says it all.  Of course this is a huge matter of opinion,
>>>but if a large group like this comes close to a consensus, then I'll consider
>>>the input valuable.  To me, human play contains more subtle,
>>>positional/strategic stuff as well as speculative sacrifices (fairly rare for
>>>programs I gather - though some claim Hiarcs 6 does spec sacs).
>>>
>>>Thanks!
>>>
>>>Roy
>>
>>
>>   What does it mean "playing like a human"? If you look at the games of a
>>Petrosian and compare them with those of Tal, Fischer, Kasparov etc. you will
>>find that ONE SINGLE human style doesn't exist. Your question seems to imply
>>that humans play chess in a way, while computers/programs play another way. In
>>any given chess position, you do not have an infinite number of good/playable
>>moves, but still more than one (usually or at least often). Now, today's
>>programs do play moves that any human could/would play
>
>Sometimes computers play stupid moves that no human in the level of at least
>2000 elo could play.
>I cannot say it about grandmasters
>
>Uri

In the last Rubinstein memorial the following position occured after blacks
move 36...Rb8.
FEN:1r/4kp/4pn1p/1P3p1P/5P/1P2KPN/8/3R w
White played Ke4?? and black answered Nd5??
These were stupid moves, but were it computer moves?
Was the black player under 2000 elo? Wasn't black a GM?

Here is the game:

[Event "Rubinstein mem"]
[Site "Polanica Zdroj POL"]
[Date "1998.08.20"]
[Round "04"]
[White "Macieja,B"]
[Black "Karpov,An"]
[Result "0-1"]
[ECO "B19"]
[WhiteElo "2490"]
[BlackElo "2725"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nf6 8.
h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Be7 12. O-O-O Nbd7 13. Kb1 O-O 14.
Qe2 c5 15. c4 cxd4 16. Nxd4 Qb6 17. Bc3 Bb4 18. Nb5 Bxc3 19. Nxc3 Nc5 20.
Rd2 Rad8 21. Rhd1 Rxd2 22. Rxd2 Qc6 23. Qf3 Qxf3 24. gxf3 Rc8 25. b3 Kf8
26. Nce4 Ke7 27. Nxf6 gxf6 28. Kc2 f5 29. f4 Nd7 30. Kd3 Rc6 31. Ke3 Nf6
32. f3 Rc8 33. Rd1 a6 34. a4 b5 35. axb5 axb5 36. cxb5 Rb8 37. Kd4 Nd5 38.
Re1 Kd6 39. Kc4 Rc8+ 40. Kd4 Nc3 41. Ne2 Nxb5+ 42. Kd3 Nc7 43. Nc3 Na6 44.
Ra1 Nb4+ 45. Kd2 Nc6 46. Ra4 Rb8 47. Kc2 Rb4 48. Rxb4 Nxb4+ 49. Kd2 Kc5 50.
Na4+ Kd4 51. Nc3 Nc6 52. Na4 Na5 53. b4 Nc4+ 54. Ke2 Ne3 55. Nc5 Nd5 56.
Nd3 f6 57. Nc5 Nxf4+ 58. Kf2 Kc4 59. Ke3 Kxb4 60. Nd7 Nxh5 61. Nf8 e5 0-1

What is better: playing like a computer or playing like a GM?
Kind regards
Bernhard



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