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Subject: Re: CM8(Utzinger) vs CM*(Default) - Impressive attack

Author: Dann Corbit

Date: 14:40:43 04/19/01

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On April 19, 2001 at 17:33:47, John Hatcher wrote:

>I'm generally skeptical of claims that small tweaks to an engine produce big
>differences in strength; but seeing is believing.  Here is a blitz (5/3) game
>between CM8000 (Utzinger) and CM8000 (Default Personality).
>
>White starts an attack against the Black King while Black's queenside is still
>undeveloped.  He sacs a Bishop for two pawns to break up Black's kingside. Then
>he sacs a Rook in a nasty mating attack.  I've never seen Chessmaster get
>tactically trounced like this before.
>
>[Event "Blitz 5/3"]
>[Site "?"]
>[Date "2001.04.19"]
>[Round "?"]
>[White "Cm8000 Utzinger"]
>[Black "CM8000 Default"]
>[Result "1-0"]
>[ECO "D45"]
>[PlyCount "61"]
>[EventDate "2001.??.??"]
>
>1. Nf3 d5 2. d4 e6 3. c4 c6 4. Nc3 Nf6 5. e3 Bb4 6. Bd2 O-O 7. a3 Bd6 8. Bd3 b6
>9. e4 dxe4 10. Nxe4 Nxe4 11. Bxe4 Ba6
>
>The attack begins:
>
>[D]rn1q1rk1/p4ppp/bppbp3/8/2PPB3/P4N2/1P1B1PPP/R2QK2R w KQ - 0 1
>
>12. O-O Bxc4 13. Bxh7+ Kh8 14. Re1 g6 15.Bg5 f6 16. Bxg6 fxg5 17. Ne5 Kg7 18.
>Nxc4 Kxg6 19. Rxe6+ Rf6 20. Qd3+ Kf7  Now the finale:
>
>
>[D]rn1q4/p4k2/1ppbRr2/6p1/2NP4/P2Q4/1P3PPP/R5K1 w - - 0 1
>
>
>21. Qh7+ Kxe6 22. Re1+ Kd5 23. Ne3+ Kxd4 24. Qc2 Bxh2+ 25. Kh1 b5 26. b4 Qe7 27.
>Qd2+ Ke5 28. Nc4+ Kf5 29. Qd3+ Kg4 30. Qh3+ Kf4 31. Qf3# 1-0
>
>Nicely done.  So, what do you think?

I think a single blitz game is less than convincing.  After a couple hundred
games at 40/2, I think there would be evidence worth looking at.



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