Author: Richard Pijl
Date: 10:06:00 10/20/05
Go up one level in this thread
On October 20, 2005 at 11:46:34, Robert Hyatt wrote:
>Here is the PGN for a blitz game Crafty played on ICC (ignore the pgn headers, I
>fabricated them when annotating the game, I believe the game was a 5 0 blitz).
>
>[Event "?"]
>[Site "?"]
>[Date "2005.10.18"]
>[Round "?"]
>[White "Crafty 20.1"]
>[WhiteElo ""]
>[Black "unknown"]
>[BlackElo ""]
>[Result "*"]
>
>1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 c5 5. d5 h6 6. Bh4 Bxc3+
>7. bxc3 d6 8. e3 e5 9. Bd3 e4 10. Bc2 Qe7 11. Bxf6 Qxf6 12. Ne2
>Qe5 13. Qb1 Nd7 14. Bxe4 O-O 15. Bd3 Nf6 16. Qc2 a6 17. a4 Bg4
>18. Rb1 b5 19. axb5 axb5 20. Rxb5 Bxe2 21. Kxe2 Rfe8 22. h3
>Nh5 23. Kd2 Qg5 24. Rg1 Qf6 25. Rf1 Qe5 26. Rb7 Nf6 27. Rbb1
>Qh2 28. Rg1 Nd7 29. Rbf1 Ne5 30. Ke2 Nxd3 31. Kxd3 Qe5 32. Kd2
>Qf6 33. f4 Ra3 34. Re1 Qd8 35. Re2 Qa5 36. Rb1 Ra4 37. Kd3 f6
>38. Rb5 Qa6 39. Qb3 Ra3 40. Qb2 Ra4 41. e4 Kh7 42. Qc2 Kg8 43. Qb3
>Ra3 44. Qb2 Ra4 45. Qc2 Kh8 46. Qb3 Ra3 47. Qb2 Ra4 48. Qb3
>Ra3 49. Qb2 Ra4 50. h4 h5 51. f5 Kh7 52. Qb1 Ra1 53. Rb6 Qa5
>54. Qb3 Ra3 55. Rb5 Qa6 56. Qc2 Ra1 57. Rb1 Kh8 58. Ree1 Ra2
>59. Qd1 Kg8 60. Qxh5 Ra8 61. Qg4 Ra4 62. e5 dxe5 63. Qe4 Ra3
>64. Rb5 Qa4 65. d6 Ra2 66. Rc1 Rf2 67. Rxc5 Qa2 68. Qe1 Rd8
>69. Ke3 Rxg2 70. Rd1 Rh2 71. Rd2 Rh3+ 72. Ke4 Qa8+ 73. Rdd5
>Rxd6 74. Qb1 Rxd5 75. Rxd5 Qc8 76. Qb5 Rxh4+ 77. Ke3 Qxf5 78. Rd8+
>Kh7 79. Qb3 Qf4+ 80. Kd3 Rh2 81. Rh8+ Kxh8 82. Qd1 e4+ 83. Kd4
>Qd6+ 84. Ke3 Qxd1 85. Kxe4 Rf2 86. c5 *
>
>
>The interesting stuff starts around move 65. White played d6 with an eval of
>+3.20. Let your program search there to see what it likes. The longer you
>search, the more the score should drop.
[D]r5k1/6p1/5p2/1RpPpP2/q1P1Q2P/r1PK4/6P1/4R3 w - - 4 65
The Baron likes 65.Rb1. No decreasing score at all after more than 20 minutes on
a P4-2.4:
ply time nodes score pv
6(13)& 0:01.05 102228 +2.20 Re1-b1 Ra8-d8 Rb5xc5 Ra3-a2 Kd3-e3
(Qa4-d7)
6(14). 0:01.27 149045 +2.20 Re1-b1 Ra8-d8 Rb5xc5 Ra3-a2 Kd3-e3
(Qa4-d7)
7(15)& 0:01.76 243911 +2.30 Re1-b1 Ra3-a2 Kd3-e3 Ra8-d8 Rb1-b2
Ra2xb2
7(15)& 0:02.59 378919 +2.33 Qe4-g4 Ra8-d8 Kd3-e2 Qa4-c2 Ke2-f1
Ra3-a2 Qg4-f3 Ra2-a3 (Rb5xc5) (Ra3xc3)
7(15). 0:02.91 446635 +2.33 Qe4-g4 Ra8-d8 Kd3-e2 Qa4-c2 Ke2-f1
Ra3-a2 Qg4-f3 Ra2-a3 (Rb5xc5) (Ra3xc3)
8(15)& 0:04.73 784077 +2.29 Qe4-g4 Ra8-d8 Rb5xc5 Qa4-b4 Rc5-c7
Rd8xd5 Kd3-e2 Ra3-a2 (Ke2-f1)
8(16)& 0:07.64 1292475 +2.36 d5-d6 Ra8-d8 Qe4-d5 Kg8-h7 Re1-c1
Qa4-a7 Rb5xc5 Qa7-d7 (Rc5-c7)
8(17). 0:08.52 1472798 +2.36 d5-d6 Ra8-d8 Qe4-d5 Kg8-h7 Re1-c1
Qa4-a7 Rb5xc5 Qa7-d7 (Rc5-c7)
9(16)& 0:15.71 2729239 +2.40 Qe4-g4 Ra8-d8 Rb5xc5 Qa4-b4 Rc5-c7
Rd8xd5 Kd3-e2 Rd5-d2 Ke2-f1 (Qb4-f8)
9(19). 0:20.00 3583309 +2.40 Qe4-g4 Ra8-d8 Rb5xc5 Qa4-b4 Rc5-c7
Rd8xd5 Kd3-e2 Rd5-d2 Ke2-f1 (Qb4-f8)
10(18)& 0:34.61 6334120 +2.47 Qe4-g4 Ra3-b3 Re1-b1 Rb3xb5 Rb1xb5
Qa4-a1 Rb5-b7 Qa1-f1 Kd3-e3 Qf1-e1 Ke3-f3
Qe1-f1 (Kf3-g3)
10(20). 0:43.29 7996844 +2.47 Qe4-g4 Ra3-b3 Re1-b1 Rb3xb5 Rb1xb5
Qa4-a1 Rb5-b7 Qa1-f1 Kd3-e3 Qf1-e1 Ke3-f3
Qe1-f1 (Kf3-g3)
11(20)& 1:02.89 11713057 +2.42 Qe4-g4 Ra3-b3 Re1-b1 Rb3xb5 Rb1xb5
Qa4-a1 Rb5-b7 Qa1-f1 Kd3-e3 Qf1-e1 Ke3-f3
Qe1xc3 Kf3-e2 Ra8-a2 (Ke2-f1) (Ra2-a1)
11(22)& 1:39.31 18576814 +2.54 Re1-b1 Ra3-a2 Kd3-e3 Ra8-d8 Rb1-b3
Ra2-a1 Qe4-g4 Qa4-a2 Rb3-b2 Qa2-a3
11(22). 1:47.77 20122237 +2.54 Re1-b1 Ra3-a2 Kd3-e3 Ra8-d8 Rb1-b3
Ra2-a1 Qe4-g4 Qa4-a2 Rb3-b2 Qa2-a3
12(22)& 2:55.55 32721029 +2.51 Re1-b1 Ra8-d8 Rb5-b8 Qa4-e8 Rb8xd8
Qe8xd8 (Rb1-b5) (Ra3-a2) (Rb5xc5) (Ra2-f2)
(Qe4-g4)
12(22). 5:21.21 59984688 +2.51 Re1-b1 Ra8-d8 Rb5-b8 Qa4-e8 Rb8xd8
Qe8xd8 (Rb1-b5) (Ra3-a2) (Rb5xc5) (Ra2-f2)
(Qe4-g4)
13(28)& 8:11.31 91592085 +2.52 Re1-b1 Ra8-d8 Kd3-d2 Ra3-a2 Kd2-e1
Qa4-a3 Qe4-f3 e5-e4 Qf3-g3 e4-e3 Qg3xe3
Ra2xg2 Qe3-e6 Kg8-h7
13(28). 12:04.36 134896351 +2.52 Re1-b1 Ra8-d8 Kd3-d2 Ra3-a2 Kd2-e1
Qa4-a3 Qe4-f3 e5-e4 Qf3-g3 e4-e3 Qg3xe3
Ra2xg2 Qe3-e6 Kg8-h7
14(27)& 21:34.21 238841879 +2.65 Re1-b1 Ra8-d8 Qe4-f3 Ra3-a2 Rb1-b3
Ra2-a3 Rb3xa3 Qa4xa3 Qf3-g4 Qa3-a7 Kd3-e2
Qa7-a2 Ke2-f3 Qa2-d2
>
>If it doesn't follow the game another move and try again. Crafty's scores
>looked like this:
>
>move 66: +3.15, 67: +2.41, 68: +1.59, 69: +.62, 70: 0.00, 71: -.39, 72: 0.00,
>73: 0.00, 74: -1.33, 75: -2.76, 76: -2.75, 77: -12.0, 78: -13.66, etc.
>
After forcing 65.d6 Ra2 (although the Baron thinks 65..Rd8 is much better) I'm
getting decreasing scores though:
ply time nodes score pv
6(13)+ 0:01.15 127371 +2.63 Qe4-d5 (Kg8-f8) (Re1-c1) (Ra8-d8) (Qd5xc5)
(Ra2xg2) (d6-d7)
6(13)& 0:01.37 159962 +2.67 Qe4-d5 Kg8-h7 Re1-c1 Qa4-a3 Rc1-b1
Qa3-a4 (Kd3-e4)
6(13). 0:01.43 170892 +2.67 Qe4-d5 Kg8-h7 Re1-c1 Qa4-a3 Rc1-b1
Qa3-a4 (Kd3-e4)
7(17)- 0:02.30 350532 +2.32 Qe4-d5 (Kg8-h7) (Re1-c1) (Ra8-d8)
7(17)& 0:02.63 417882 +1.84 Qe4-d5 Kg8-h7 Re1-c1 Ra8-d8 Kd3-e3
Qa4-a3 Rb5-b1
7(17). 0:03.02 483611 +1.84 Qe4-d5 Kg8-h7 Re1-c1 Ra8-d8 Kd3-e3
Qa4-a3 Rb5-b1
8(16)& 0:05.27 873801 +1.58 Kd3-e3 Qa4-a3 Qe4-d3 Ra2xg2 Ke3-f3
Rg2-h2 Qd3-d5 Kg8-f8
8(16)+ 0:07.69 1279795 +2.19 Re1-c1 (Kg8-h7) (Rb5-b7) (Ra8-d8) (Rb7-b6)
8(16)& 0:09.88 1657627 +2.59 Re1-c1 Ra8-d8 Qe4-d5 Kg8-h7 Rb5-b7
Ra2-f2 g2-g3 Qa4-a6 (d6-d7)
8(20). 0:10.27 1753417 +2.59 Re1-c1 Ra8-d8 Qe4-d5 Kg8-h7 Rb5-b7
Ra2-f2 g2-g3 Qa4-a6 (d6-d7)
9(16)& 0:15.65 2707840 +2.42 Re1-c1 Ra8-d8 Qe4-d5 Kg8-h7 d6-d7
Qa4-a3 Rb5-b1 Ra2-f2 Rc1-f1 (Qa3-a2)
9(18). 0:18.12 3140678 +2.42 Re1-c1 Ra8-d8 Qe4-d5 Kg8-h7 d6-d7
Qa4-a3 Rb5-b1 Ra2-f2 Rc1-f1 (Qa3-a2)
10(18)& 0:29.49 5184635 +2.14 Re1-c1 Ra8-d8 Qe4-d5 Kg8-h7 Rb5-b7
e5-e4 Kd3-e3 Qa4-a3 Qd5-d1 Ra2xg2 Qd1-h5
Kh7-g8 Qh5-f7 (Kg8-h8)
10(20). 0:33.50 5970715 +2.14 Re1-c1 Ra8-d8 Qe4-d5 Kg8-h7 Rb5-b7
e5-e4 Kd3-e3 Qa4-a3 Qd5-d1 Ra2xg2 Qd1-h5
Kh7-g8 Qh5-f7 (Kg8-h8)
11(20)& 1:19.86 14423911 +2.08 Re1-c1 Ra2-f2 Kd3-e3 Rf2-f4 Qe4-d5
Kg8-h7 g2-g3 Qa4-a3 Rc1-c2 Rf4-d4 Qd5xa8
(Qa3xa8)
11(26). 1:32.16 17218263 +2.08 Re1-c1 Ra2-f2 Kd3-e3 Rf2-f4 Qe4-d5
Kg8-h7 g2-g3 Qa4-a3 Rc1-c2 Rf4-d4 Qd5xa8
(Qa3xa8)
12(22)& 2:44.44 30479479 +1.83 Re1-c1 Ra8-d8 Kd3-e3 Qa4-a3 Qe4-d5
Kg8-h7 Rb5-b1 Ra2-b2 Ke3-d3 Rb2-f2 Rc1-f1
Qa3-a2
and after 66.Rc1 Rf2 it increases again:
ply time nodes score pv
6(13). 0:01.48 169734 +2.96 Kd3-e3 Rf2-f4 Qe4-d5 Kg8-h7 Rb5xc5
Qa4-e8
7(13)& 0:02.03 269848 +2.95 Kd3-e3 Qa4-a2 Qe4xa8 Qa2xa8 Ke3xf2
Qa8-e4 Rb5-b8 Kg8-f7
7(15). 0:03.35 489729 +2.95 Kd3-e3 Qa4-a2 Qe4xa8 Qa2xa8 Ke3xf2
Qa8-e4 Rb5-b8 Kg8-f7
8(15)& 0:04.50 704532 +2.92 Kd3-e3 Rf2-f4 Qe4-d5 Kg8-h7 Rb5xc5
Qa4-a3 Rc1-c2 Ra8-d8
8(16). 0:08.40 1387622 +2.92 Kd3-e3 Rf2-f4 Qe4-d5 Kg8-h7 Rb5xc5
Qa4-a3 Rc1-c2 Ra8-d8
9(19)- 0:23.89 4152919 +2.57 Kd3-e3 (Rf2-f4) (Qe4-d5) (Kg8-h7) (Rb5xc5)
(Qa4-a2) (Qd5-d2) (Qa2-a7) (Qd2-d5)
(Qa7-a2) <rep>
9(19)& 0:28.40 4902549 +2.08 Kd3-e3 Rf2-f4 Qe4-d5 Kg8-h7 g2-g3
Qa4-a3 Rc1-c2 Rf4-d4 Qd5xa8
9(19). 0:38.56 6657200 +2.08 Kd3-e3 Rf2-f4 Qe4-d5 Kg8-h7 g2-g3
Qa4-a3 Rc1-c2 Rf4-d4 Qd5xa8
10(18)& 0:46.30 8080613 +2.08 Kd3-e3 Rf2-f4 Qe4-d5 Kg8-h7 g2-g3
Qa4-a3 Rc1-c2 Rf4-d4 Qd5xa8 Qa3xa8 (c3xd4)
10(20). 1:00.42 10684309 +2.08 Kd3-e3 Rf2-f4 Qe4-d5 Kg8-h7 g2-g3
Qa4-a3 Rc1-c2 Rf4-d4 Qd5xa8 Qa3xa8 (c3xd4)
11(19)& 1:11.79 12828938 +2.08 Kd3-e3 Rf2-f4 Qe4-d5 Kg8-h7 g2-g3
Qa4-a3 Rc1-c2 Rf4-d4 Qd5xa8 Qa3xa8 c3xd4
11(21). 1:40.95 18167161 +2.08 Kd3-e3 Rf2-f4 Qe4-d5 Kg8-h7 g2-g3
Qa4-a3 Rc1-c2 Rf4-d4 Qd5xa8 Qa3xa8 c3xd4
12(22)& 2:20.00 25519794 +2.31 Kd3-e3 Qa4-a2 Qe4xa8 Qa2xa8 Ke3xf2
Qa8-a2 Kf2-e3 Qa2xc4 Rb5-b8 Kg8-h7 g2-g3
e5-e4 Rc1-d1 Qc4xc3 (Ke3xe4) (Qc3-e5) (Ke4
-f3)
(Qe5xf5) (Kf3-e2)
After 67.Rxc5 Qa2 the white score sinks below zero rapidly. Perhaps 67.Rxc5 was
not the best one?:
ply time nodes score pv
5(13). 0:01.10 113649 +1.30 Qe4-e1 Ra8-d8 Kd3-e3 Qa2-a7 (Ke3xf2)
6(14)& 0:01.21 144399 +1.10 Qe4-e1 Ra8-d8 Rc5-c6 Rf2xg2 Qe1-e3
(Rg2-g3)
6(14). 0:01.70 223181 +1.10 Qe4-e1 Ra8-d8 Rc5-c6 Rf2xg2 Qe1-e3
(Rg2-g3)
7(15)& 0:02.20 322277 +1.40 Qe4-e1 Ra8-d8 Rc5-c6 Rf2xg2 h4-h5
Rg2-f2 (h5-h6)
7(15). 0:02.80 423394 +1.40 Qe4-e1 Ra8-d8 Rc5-c6 Rf2xg2 h4-h5
Rg2-f2 (h5-h6)
8(16)- 0:05.11 817061 +1.05 Qe4-e1 (Ra8-d8) (Rc5-c6) (Rf2xg2) (h4-h5)
(e5-e4) (Kd3-e3) (Qa2-a4)
8(16)& 0:05.99 996977 +0.00 Qe4-e1 Ra8-d8 Rc5-c6 Rf2xg2 Rc6-b6
Rg2-g4 Rb6-c6 Rg4-g2 <rep>
8(16). 0:07.91 1342409 +0.00 Qe4-e1 Ra8-d8 Rc5-c6 Rf2xg2 Rc6-b6
Rg2-g4 Rb6-c6 Rg4-g2 <rep>
9(18)& 0:10.22 1794424 -0.21 Qe4-e1 Ra8-d8 Rc5-c6 Rf2xg2 Kd3-e3
Qa2-a4 Rc6-c7 Rd8xd6 (Ke3-f3)
9(18). 0:15.43 2652318 -0.21 Qe4-e1 Ra8-d8 Rc5-c6 Rf2xg2 Kd3-e3
Qa2-a4 Rc6-c7 Rd8xd6 (Ke3-f3)
10(19)& 0:29.49 5322789 -0.24 Qe4-e1 Ra8-d8 Rc5-a5 Qa2xa5 Qe1xf2
Qa5-a3 Qf2-e3 Rd8xd6 Kd3-e2 Qa3-a2 Ke2-f3
(Qa2xc4)
10(19). 0:42.13 7624914 -0.24 Qe4-e1 Ra8-d8 Rc5-a5 Qa2xa5 Qe1xf2
Qa5-a3 Qf2-e3 Rd8xd6 Kd3-e2 Qa3-a2 Ke2-f3
11(20)& 1:16.40 14152162 -0.51 Qe4-e1 Ra8-d8 Kd3-e3 Rf2xg2 Rc1-d1
Rg2-h2 Rd1-d2 Qa2-a7 Rd2-d5 Rd8xd6
(Ke3-e4)
and finally after 68.Qe1 Rd8:
ply time nodes score pv
6(13)& 0:01.10 112484 +0.00 Rc5-c6 Rf2xg2 Rc6-b6 Rg2-g4 Rb6-c6
Rg4-g2 <rep>
6(13). 0:01.37 157128 +0.00 Rc5-c6 Rf2xg2 Rc6-b6 Rg2-g4 Rb6-c6
Rg4-g2 <rep>
7(15)& 0:01.70 221092 -0.21 Rc5-c6 Rf2xg2 Kd3-e3 Qa2-a4 Rc6-c7
Rd8xd6 (Ke3-f3)
7(15). 0:02.80 408084 -0.21 Rc5-c6 Rf2xg2 Kd3-e3 Qa2-a4 Rc6-c7
Rd8xd6 (Ke3-f3)
8(16)& 0:05.22 836343 -0.42 Rc5-c6 Rf2xg2 h4-h5 Qa2-a8 Qe1-e4
Rg2-g3 Kd3-e2 Rd8xd6 (Ke2-f2)
8(19). 0:07.85 1321793 -0.42 Rc5-c6 Rf2xg2 h4-h5 Qa2-a8 Qe1-e4
Rg2-g3 Kd3-e2 Rd8xd6 (Ke2-f2)
9(16)& 0:12.80 2212376 -0.51 Kd3-e3 Rf2xg2 Rc1-d1 Rg2-h2 Rd1-d2
Qa2-a7 Rd2-d5 Rd8xd6
9(21). 0:18.67 3300847 -0.51 Kd3-e3 Rf2xg2 Rc1-d1 Rg2-h2 Rd1-d2
Qa2-a7 Rd2-d5 Rd8xd6
10(20)& 0:33.45 6105546 -0.44 Rc5-a5 Rd8xd6 Kd3-e3 Qa2xa5 Ke3xf2
Qa5-c5 Kf2-f1 Qc5xc4 Kf1-g1 Qc4-g4 Qe1-f2
Rd6-d3 (Kg1-f1)
10(22). 0:37.79 6965960 -0.44 Rc5-a5 Rd8xd6 Kd3-e3 Qa2xa5 Ke3xf2
Qa5-c5 Kf2-f1 Qc5xc4 Kf1-g1 Qc4-g4 Qe1-f2
Rd6-d3 (Kg1-f1)
11(22)- 1:36.12 17838890 -0.79 Rc5-a5 (Rd8xd6) (Kd3-e3) (Qa2-b2) (Ra5-d5)
(Rd6xd5) (c4xd5) (Rf2xf5) (g2-g4) (Rf5-f4)
11(22)& 1:46.12 19988753 -0.89 Rc5-a5 Rd8xd6 Kd3-e3 Qa2-b2 Rc1-b1
Qb2-c2 Ra5-d5 Rd6xd5 Rb1-b8 Kg8-h7 c4xd5
Rf2-f4
11(22). 3:14.71 35795448 -0.89 Rc5-a5 Rd8xd6 Kd3-e3 Qa2-b2 Rc1-b1
Qb2-c2 Ra5-d5 Rd6xd5 Rb1-b8 Kg8-h7 c4xd5
Rf2-f4
Needless to say: all searches started with clean hashtables.
>I first thought I had some sort of bug, but after playing back through the
>position, this is less a bug and more just missing deep tactics. Would be
>interesting to see what kinds of scores at different depths other programs see
>starting at move 66...
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