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Subject: Re: XiniX is the winner in a certain way

Author: Will Singleton

Date: 11:24:06 10/26/03

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On October 26, 2003 at 11:18:43, Djordje Vidanovic wrote:

>In a certain way, XiniX is the winner of the Dutch Open.  Scoring 1.5/2 against
>the two top-placed programs is quite an achievement.  Congratulations.  The game
>vs Ruffian was quite an eye-opener for the Ruffian team :-) XiniX, thanks.
>
>Djordje

I wonder, had Ruffian played 27...Ng7, if Xinix would have played Rd1 (which
leads either to a nice win or at least equal game) or Bg5, giving Ruffian the
advantage.  Tony?

It appears to me that Ruffian's 27.Nc7 was caused, in part, by a hash anomaly.
With cleared hash, it doesn't consider it; it will play it with hash full,
though.  I've seen similar behavior with my program, though I don't know the
reason.

[d]3rn1k1/1p1rpp2/p5p1/q1p1P2p/2P1P3/1P1bB3/P4NPP/R1Q1R1K1 b - - 0 27

27... Ng7 28. Rd1
  (28. Bg5 Ne6 29. Bh4 Qc7 30. Qc3 g5 31. Bxg5 (31. Rad1 gxh4 32. Nxd3
  Rd4 =+) 31... Nxg5 32. Re3 Nxe4 33. Nxe4 Bxe4 34. Rxe4 Rd1+ 35. Rxd1 Rxd1+
  36. Kf2 Qd7 =+)
28... b5
  (28... Ne6 29. Qd2 Qxd2 30. Rxd2 Nf8 31. e6 +=)
  (28... Qb4 29. Bd2!!)
29. cxb5 Bxb5 30. Rxd7 Rxd7 31. a4 Bc6 32. Bxc5 Ne6 =


Ruffian looks like it might play 28...Qb4 after 27...Ng7 28.Rd1, leading to a
quick loss.  It doesn't consider b5, for some reason.

Will



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