Computer Chess Club Archives

Search

Messages

Subject: Re: A Rykba bug ?

Author: Djordje Vidanovic

Date: 17:56:51 12/23/05

Go up one level in this thread

On December 23, 2005 at 20:35:34, Arnon Yogev wrote:

>Kh7 is the only playable move.
>
>[D]2r4k/6p1/6N1/p6p/P7/1B6/1KP4r/2B5 b - - 0 45
>
>Rybka (beta version) can't analyse this position(no PV).
>
>1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5.
>Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Nb3 Be7 9. Qf3 h6 10. Bh4 Qc7 11. O-O-O Nbd7 12.
>a4 b6 13. Bd3 Bb7 14. Bg3 O-O 15. Rhe1 Nc5 16. Nxc5 bxc5 17. Bc4 Qb6 18. f5
>exf5 19. Qxf5 Qb4 20. Bb3 c4 21. Rd4 Rac8 22. h4 Rc5 23. Qf1 Rfc8 24. Ba2 a5
>25. Rxd6 Nh5 26. Bh2 Bxh4 27. Red1 Bf6 28. e5 Bg5+ 29. Kb1 Rb8 30. e6 fxe6 31.
>Rd7 Nf4 32. Bxf4 Bxg2 33. Rd8+ Bxd8 34. Rxd8+ Rxd8 35. Qxg2 Rh5 36. Qe4 Kh8 37.
>Bc1 Qc5 38. Qxe6 Rh1 39. Ne2 c3 40. Bc4 cxb2 41. Kxb2 Rh2 42. Bb3 Qc8 43. Qxc8
>Rxc8 44. Nf4 h5 45. Ng6+ *
>
>AY.


This has been fixed in the later Betas:

New game,
2r4k/6p1/6N1/p6p/P7/1B6/1KP4r/2B5 b - - 0 1

Analysis by Rybka 1.01 Beta XX 32-bit:

1...Kh7
  -+  (-2.17)   Depth: 3   00:00:00
1...Kh7
  -+  (-1.98)   Depth: 4   00:00:00
1...Kh7 2.Ne7
  -+  (-1.97)   Depth: 5   00:00:00
1...Kh7 2.Ne7 Re8
  -+  (-2.05)   Depth: 6   00:00:00  4kN
1...Kh7 2.Ne7 Re8 3.Bf4
  -+  (-2.23)   Depth: 7   00:00:00  6kN
1...Kh7 2.Ne7 Re8 3.Bf4 Rf2
  -+  (-2.01)   Depth: 8   00:00:00  11kN
1...Kh7 2.Ne7 Re8 3.Bf4 Rf2 4.Bg3
  -+  (-2.06)   Depth: 9   00:00:00  21kN
1...Kh7 2.Ne7 Re8 3.Bf4 Re2 4.Nd5 h4
  -+  (-2.13)   Depth: 10   00:00:00  39kN
1...Kh7 2.Ne7 Re8 3.Bf4 Rf2 4.Bg3 Rf3 5.Bh4
  -+  (-2.25)   Depth: 11   00:00:00  137kN
1...Kh7 2.Ne7 Re8 3.Bf4 Rg2 4.Nc6 h4 5.Bf7 Ree2
  -+  (-2.33)   Depth: 12   00:00:01  228kN
1...Kh7 2.Ne7 Re8 3.Bf4 Rg2 4.Nc6 h4 5.Bf7 Ree2 6.Bd5
  -+  (-2.19)   Depth: 13   00:00:01  361kN
1...Kh7 2.Ne5 h4 3.Nf3 Rh1 4.Be3 h3 5.Bd5 Rd1 6.Be6 Re8
  -+  (-2.49)   Depth: 14   00:00:06  1547kN
1...Kh7 2.Ne5 h4 3.Nf3 Rh1 4.Bd2 h3 5.Be6 Rb8+ 6.Kc3 Kg6 7.Ne5+ Kf6 8.Bd5
  -+  (-2.51)   Depth: 15   00:00:11  2563kN
1...Kh7 2.Ne5 h4 3.Nf3 Rh1 4.Bd2 h3 5.Be6 Rb8+ 6.Kc3 Kg6 7.Ne5+ Kf6 8.Bd5
  -+  (-2.62)   Depth: 16   00:00:18  4223kN

(Vidanovic, Home 24.12.2005)

• Re: A Rykba bug ? David Dahlem 18:33:36 12/23/05
  • Re: A Rykba bug ? Vasik Rajlich 02:27:37 12/24/05

This page took 0.01 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.