Author: Robert Hyatt
Date: 14:33:30 02/05/99
Go up one level in this thread
On February 05, 1999 at 14:56:34, John Merlino wrote: >On February 05, 1999 at 11:57:56, Djordje Vidanovic wrote: > >>A couple of days ago I reported on the successful performance of two French >>programs, Chess Wizard and Zchess, in the Aubervilliers rapid chess tournament. >>As this particular position may have been overlooked, and as I believe that it >>is worth analysing with different chess software, I'll try to bring it up again. >> >>White: GM Sekatchev, Black: Zchess 1.2: >> >>1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. h3 Qb6 7. Nc3 Qb4 8. O-O >>Bxc3 9. a3 Qa5 10. bxc3 Qxc3 11. Rb1 Qa5 12. Bb2 f6 13. e5 f5 14. e6 Nf6 15. Qc1 >>b6 16. Re1 O-O 17. Qh6 c4 18. dxc4 Bxe6 19. Rxe6 Rf7 20. Ng5 * 1-0 >> >> >>on move 8, Black (Zchess 1.2) played 8...Bxc3. Of the tested programs, the only >>one not yielding to the temptation was Zarkov 5 playing 8...Nf6, not bothering >>to capture the Knight, which is, of course, a good move. Other programs, among >>them Crafty 16.0, according to Zchess's author Franck Zibi, tend to play the >>same bad move, 8...Bxc3. More info, with comments by Franck 1. e4 c5 2. Nf3 Nc6 >>3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. h3 Qb6 7. Nc3 Qb4 8. O-OBxc3 9. a3 Qa5 10. >>bxc3 Qxc3 11. Rb1 Qa5 12. Bb2 f6 13. e5 f5 14. e6 Nf6 15. Qc1b6 16. Re1 O-O 17. >>Qh6 c4 18. dxc4 Bxe6 19. Rxe6 Rf7 20. Ng5 *Zibi, can be found at >>http://www.forum64.com/. Some tested programs are (AMD K6-2/300): >> >>ZChess 1.2 Bxc3 ?? 11 +0.80 >>WChess 2000 Bxc3 ?? 11 +0.88 >>Crafty 16.0 Bxc3 ?? 12 +0.13 >>Chess Genius 6 Bxc3 ?? 8 -0.06 >>Fritz 5.0 Bxc3 ?? 11 -0.25 >>Zarkov 5 Nf6 ! :-) 6 -0.19 >> >>What does your program play in this position? Bob, you said that you could not >>reproduce 8...Bxc3. Could you retry it on your Quad? Others? >> >>Regards, >>Djordje > >Chessmaster 6000 never gives Bxc3 any serious thought, and almost immediately >prefers Be6. After thinking for about 3 minutes, it still prefers Be6: > >8... Be6 9.a3 Qa5 10.Bd2 Nf6.... with a .54 advantage for white. > >jm Be6 looks ugly from a chess point of view. Either Bd7 or Nf6 or moving the epawn seem more logical to me...
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