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Socrates (Computer) vs Deep Blue (Computer)
Cape May,NJ ACM (1994), rd 4
Sicilian Defense: Richter-Rauzer. Neo-Modern Variation Early deviations (B66)  ·  0-1
ANALYSIS [x]

FEN COPIED

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sac: 37...a3 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
May-23-08  rwbean: In April 1995 Robert Hyatt wrote in rec.games.chess: "The last time deep thought and star socrates played [referring to this game], deep thought found a forcing line to win material, and it saw the win at least 5 full moves before star socrates knew it had fallen into the sewer."

Remembering this, I decided to go over this game with Rybka. What surprises me is how bad the play is. Rybka is much better than either computer, finding some big improvements:

18. Ne2 (as in Dolmatov - Greenfeld 1991) will draw after 18. Ne2 Bb6 19. Bxh6

20. Bc4? is a horrible move: the improvement for Black is 22... b4 23. axb4 Bd5 24. Rxd5 axb4 25. Bc4 Nxd5 26. Qxe7 Nxe7 (+1.09). Instead White can improve on the game line with 27. Bc4 Rb8+ 28. Kc1 (-0.26). Similarly, 29. Rxc6 and 31 ... a4 are bad moves and 33. Ke2?? is a losing blunder.

I don't really see where the forcing line was but it did open my eyes to how much better current software running on the average computer today is compared with the best programs of 1994.

Jan-25-09  rwbean: Actually Feng-Hsiung Hsu already noted 22... b4 was better than 22... Qe3+ in 1994:

http://groups.google.com/group/rec....

"Newborn refered to the win over StarSocrates as one of the most brilliant games in computer chess history, but it would have been a much better game had it played b4 first before playing Qe3+, as then white would not have the chance to trade the queens."

Jan-25-09  rwbean: http://groups.google.com/group/rec....

Feng-Hsiung Hsu in July 1994:

"*Socrates thought it was winning the d4 pawn
by playing Na2, while DT2 knew all along that the d4 pawn was untouchable. It is not a matter of chess knowledge. It is a matter of calculating the dynamics of the position. It was expecting Ne2, by the way, and calculated that even after Ne2 it had a bind in the position."

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