Author: Robert Hyatt
Date: 10:34:21 08/26/05
Go up one level in this thread
On August 26, 2005 at 13:11:07, Gian-Carlo Pascutto wrote:
>On August 26, 2005 at 12:51:13, Robert Hyatt wrote:
>
>>Check your analysis. That position is a mate in 3 for black. :)
>
>Me and 5 or 6 chessprograms disagree. (See my other post)
>
>(I did not try Crafty).
>
>>I can get multiple PVs. Can you post the PGN for the game and I can get it to
>>display the five best moves and scores via "annotate"...
>
>[Event "13th WCCC"]
>[Site "Reykjavik"]
>[Date "2005.08.14"]
>[Round "2"]
>[White "Deep Sjeng"]
>[Black "Zappa"]
>[ECO "E12"]
>[Result "0-1"]
>
>1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Ba6 5. Qc2 Bb7 6. Nc3 c5
>7. e4 cxd4 8. Nxd4 Nc6 9. Nxc6 Bxc6 10. Bf4 Bc5 11. Be2 O-O
>12. Rd1 a5 13. O-O Qe7 14. Bg3 e5 15. Bh4 h6 16. Rd2 Rfc8
>17. Nd5 Bxd5 18. Bxf6 Qxf6 19. Rxd5 Rc7 20. Qd2 Bd4 21. Kh1
>Qe7 22. f4 d6 23. b3 Rc5 24. f5 Qf6 25. Rc1 Rac8 26. g3 Kf8
>27. Kg2 Ke7 28. b4 axb4 29. axb4 R5c7 30. Qa2 h5 31. Qd2 h4
>32. g4 h3+ 33. Kh1 Qh4 34. Rf1 Ra7 35. Qd3 Rca8 36. c5 bxc5
>37. bxc5 Bxc5 38. Qf3 Ra2 39. Rdd1 R8a3 40. Rd3 Qh6
>41. Rxa3 Rxa3 42. Bd3 Be3 43. Bb1 Bc5 44. Bd3 Kd8 45. Rb1
>Bb6 46. g5 Qh4 47. g6 f6 48. Rd1 Bd4 49. Rb1 Rc3 50. Qg3
>Qxg3 51. hxg3 Rxd3 52. Kh2 Bf2 53. Kxh3 Bxg3 54. Kg2 Bf4
>55. Ra1 Bh6 56. Ra8+ Kc7 0-1
Here's what I got: Note most moves are hopeless. I only asked for the best 10,
and that was really too many here... Note that some of the PVs end in the usual
<HT> but that is now shown in the annotate output, unfortunately, so any PV
could have a little more "stuff" on the end.
Note that this is also the perfect place for Hsu's last incarnation of singular
extensions, where they extended, but less, if there are only two decent moves.
Qe2 and Qf1 really seem to be "it" here. I'd suspect that SE would work well
here in general, if it isn't the "cheapo-type" that Bruce and I worked on a few
years back, but rather is a "real SE algorithm as explained by Hsu"...
({16:-1.31} 49. Qe2 Qf4 50. Rf1 Qg5 51. Bc4 Ke7 52. Bf7 Re3 53.
Qa2 Qg2+ 54. Qxg2 hxg2+ 55. Kxg2 Rxe4 56. Bc4 Be3 57. Bd5 Rd4 58. Bc6 $17)
({16:-1.63} 49. Qf1 Ke7 50. Qe2 Qf4 51. Rf1 Qg5 52. Bb1 Bc5 53.
Qb2 Rb3 54. Qc2 Kf8 55. Qa2 Ba3 56. Rd1 Rc3 $19)
({16:-3.37} 49. Rb1 d5 50. Rf1 dxe4 51. Qxe4 Qxe4+ 52. Bxe4 Kc7
53. Rc1+ Kd7 54. Re1 Ra2 55. Bd5 Rf2 56. Be4 Rb2 57. Rd1 Ra2 58. Rc1 Kd6 $17)
({16:-5.33} 49. Rf1 Rb3 50. Qe2 Qg5 51. Bc2 Rb2 52. Rd1 Qg2+
53. Qxg2 hxg2+ 54. Kxg2 Rxc2+ 55. Kg3 Re2 56. Rb1 Re3+ 57. Kg2 Kc7 58. h4 Rxe4
59. Rc1+ Bc5 60. h5 $19)
({16:-13.42} 49. Rc1 Qg5 50. Rb1 Rxd3 51. Qxh3 Rxh3 52. Rb8+
Kc7 53. Rb7+ Kc6 54. Rc7+ Kb5 55. Rc5+ Ka4 56. Rc4+ Kb3 57. Rb4+ Kc2 58. Rb2+
Kd3 59. Rd2+ Kxe4 60. Rxd4+ Kxf5 61. Rxd6 $19)
({16:-15.44} 49. Rg1 Bxg1 50. Kxg1 Qg5+ 51. Kf2 Qd2+ 52. Qe2
Qf4+ 53. Ke1 Ra1+ 54. Qd1 Rxd1+ 55. Kxd1 Qxh2 56. Kc1 Qf4+ 57. Kc2 h2 58. Kc3
h1=Q 59. Kc4 Kc7 $19)
({14:-Mat06} 49. Qe3 Bxe3 50. Rb1 Qg4 51. Rb8+ Kc7 52. Rc8+
Kxc8 53. Ba6+ Kc7 54. Bb7 Qg2# $19)
({14:-Mat06} 49. Qg3 Rxd3 50. Qxd3 Qg4 51. Qxh3 Qxh3 52. Rg1
Qf3+ 53. Rg2 Qd1+ 54. Rg1 Qxg1# $19)
({11:-Mat05} 49. Qxh3 Qxh3 50. Be2 Rg3 51. Bf3 Rxf3 52. Rb1
Rf1+ 53. Rxf1 Qxf1# $19)
({11:-Mat05} 49. Bc2 Rxf3 50. Rb1 Rf1+ 51. Rxf1 Qg5 52. Rf2
Bxf2 53. Bd1 Qg2# $19)
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