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Subject: Re: Transferring eval to deep blue game

Author: Dusan Dobes

Date: 14:47:14 12/03/99

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>
>Dusan, if you add a huge penalty for having opposite bishops in endgame,
>does PHalanx play 36.axb5! in the deep blue - kasparov game then (game 2),
>at say 11 ply depth, or does it need a bit bigger depth?

Hm, i dont see the idea. Neither does my proggie. It says just +1.41
for white in the final position of the game (move 45). It prefers
36. Qb6 and evaluates it as +1.60.

What you mean by penalty for having opposite bishops? Phalanx's static
eval just steals lots of points from material advantage in opposite
bishops endgame. No rook, no queen, no knight can be onboard, just
pure K+B+pawns versus K+B+pawns.

>
>I assume if so that it plays 37.Be4? too (Qb6 wins forced there).
>
>[Event "ICC u 120 0 05/04/97"]
>[Site "Internet Chess Club"]
>[Date "1997.05.04"]
>[Round "-"]
>[White "Deep-Blue"]
>[Black "Kasparov"]
>[Result "1-0"]
>[WhiteElo "0"]
>[BlackElo "2795"]
>[GameID "862766392"]
>[ECO "C93"]
>[NIC "RL.22"]
>[LongECO "Ruy Lopez: closed, Smyslov defense"]
>
> 1. e4 e5       2. Nf3 Nc6     3. Bb5 a6      4. Ba4 Nf6     5. O-O Be7
> 6. Re1 b5      7. Bb3 d6      8. c3 O-O      9. h3 h6      10. d4 Re8
>11. Nbd2 Bf8   12. Nf1 Bd7    13. Ng3 Na5    14. Bc2 c5     15. b3 Nc6
>16. d5 Ne7     17. Be3 Ng6    18. Qd2 Nh7    19. a4 Nh4     20. Nxh4 Qxh4
>21. Qe2 Qd8    22. b4 Qc7     23. Rec1 c4    24. Ra3 Rec8   25. Rca1 Qd8
>26. f4 Nf6     27. fxe5 dxe5  28. Qf1 Ne8    29. Qf2 Nd6    30. Bb6 Qe8
>31. R3a2 Be7   32. Bc5 Bf8    33. Nf5 Bxf5   34. exf5 f6    35. Bxd6 Bxd6
>36. axb5 axb5  37. Be4 Rxa2   38. Qxa2 Qd7   39. Qa7 Rc7    40. Qb6 Rb7
>41. Ra8+ Kf7   42. Qa6 Qc7    43. Qc6 Qb6+   44. Kf1 Rb8    45. Ra6
>{Black resigns} 1-0



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