Author: Djordje Vidanovic
Date: 11:38:59 10/26/03
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On October 26, 2003 at 14:24:06, Will Singleton wrote: >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 Will, thanks for yout thoughts. I am planning to go through this game very carefully now. I have to see what happened. As I have exactly the same machine as used in Leiden with the same Ruffian version, I believe that I will the answer. Of course, the first losing move was that Q to a5, instead of barring the g5 square to the white knight by playing f6... Djordje
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