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Subject: Re: Shredder 9

Author: Uri Blass

Date: 05:35:51 12/26/05

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On December 26, 2005 at 08:20:54, Alex Shalamanov wrote:

>On December 26, 2005 at 07:53:23, Uri Blass wrote:
>
>>I think that you are wrong.
>>
>>Fruit is probably better in the endgame than shredder
>>I have example from my correspondence games and I plan to post it after the game
>>is finished.
>>
>>Uri
>
>You're wrong here. Shredder is much better than Fruit even w/o Nalimov
>tablebases. It's just got more endgame knowledge. You didn't convince me anyway.
>
>Alexander

You did not convince me and I remember that Fruit beated Shredder in the endgame
in the last world championship.

Fruit had better evaluation of the endgame thanks to having more knowledge and
when shredder evaluated the QBPPPPvs QBPPPP as equal fruit saw that it has an
advantage for black.

It seems that Shredder overestimated the passed pawn (white b2 pawn)

[Event "?"]
[Site "?"]
[Date "2005.08.16"]
[Round "?"]
[White "Shredder"]
[Black "Fruit"]
[Result "*"]
[PlyCount "188"]
[EventDate "2005.??.??"]

1. e4 {0s} c5 {+0.01/1 1s} 2. Nf3 {9s} e6 {+0.01/1 1s} 3. d4 {11s} cxd4 {
+0.01/1 1s} 4. Nxd4 {9s} Nc6 {+0.01/1 1s} 5. Nc3 {8s} a6 {+0.01/1 1s} 6. Be2 {
10s} d6 {+0.01/1 1s} 7. Be3 {10s} Nf6 {+0.01/1 1s} 8. f4 {11s} Be7 {+0.01/1 1s}
9. O-O {11s} Qc7 {+0.01/1 1s} 10. Qe1 {12s} O-O {+0.01/1 1s} 11. Kh1 {17s} Nxd4
{+0.01/1 1s} 12. Bxd4 {14s} b5 {+0.01/1 1s} 13. Qg3 {12s} Bb7 {-0.32/17 5:34m}
14. a3 {13s (Bf3)} Bc6 {+0.01/1 1s} 15. Bd3 {11s} Rfd8 {-0.26/15 3:22m} 16.
Rae1 {54s} Qb7 {-0.23/17 4:12m} 17. Bxf6 {11s (Qh3)} Bxf6 {-0.14/17 2:40m} 18.
e5 {8s} Be7 {-0.26/17 3:45m} 19. Ne4 {11s} dxe5 {-0.25/17 4:24m} 20. fxe5 {21s}
Rd5 {-0.22/15 9:44m} 21. Re2 {3:11m (Qf4)} Rf8 {-0.03/15 2:39m} 22. Nf6+ {51s}
Bxf6 {-0.02/16 1:43m} 23. Rxf6 {1:59m} Rd4 {+0.12/16 1:27m} 24. Rh6 {
4:07m (Rf1)} g6 {+0.25/17 3:18m} 25. Rh4 {1:03m} Rxh4 {+0.21/19 2:48m} 26. Qxh4
{7s} Qb6 {+0.23/20 6:26m} 27. Qf4 {4:22m} Rd8 {+0.23/21 1s} 28. Rf2 {4:12m (h3)
} Rd7 {+0.27/18 2:02m} 29. c3 {5:12m (h3)} Qc7 {+0.43/17 1:31m} 30. Qe3 {
4:43m (Bc2)} Qd8 {+0.56/19 1:42m} 31. Bf1 {2:28m} Rd1 {+0.56/19 12s} 32. Kg1 {
4:43m (Qf4)} Qd5 {+0.64/17 1:48m} 33. Re2 {3:46m (h3)} a5 {+0.56/17 2:20m} 34.
Qf2 {3:43m (h3)} b4 {+0.61/18 1:45m} 35. axb4 {6:14m} axb4 {+0.55/21 1s} 36.
cxb4 {4:56m} h6 {+0.51/20 1s} 37. Re1 {3:41m (Qf4)} Rxe1 {+0.62/21 1:31m} 38.
Qxe1 {16s} Qd4+ {+0.62/23 1:52m} 39. Qf2 {39s} Qxb4 {+0.60/22 59s} 40. h3 {
2:28m} Be4 {+0.57/22 40s} 41. Kh2 {3:33m} Bd5 {+0.57/22 1s} 42. Bd3 {55s} Qb7 {
+0.46/20 1:39m} 43. Qf6 {5:45m} Qb6 {+0.44/22 1s} 44. Qh4 {3:38m (Bb1)} Qb8 {
+0.46/21 3:34m} 45. Qf6 {18s (Qd4)} Qb7 {+0.44/20 1:45m} 46. Bb1 {3:29m} Qd7 {
+0.42/21 1s} 47. Qh4 {3:04m} Qc7 {+0.44/20 38s} 48. Qf4 {4:47m} Ba8 {
+0.43/21 1s} 49. b4 {3:30m} Qb7 {+0.33/22 1s} 50. Qd2 {4:15m (Qf3)} Kg7 {
+0.41/21 2:44m} 51. Qb2 {1:22m (Ba2)} Qb5 {+0.95/22 3:28m} 52. Kg1 {1:19m (Ba2)
} h5 {+0.96/21 3:03m} 53. Ba2 {8:09m} Qd3 {+1.02/21 1s} 54. Qf2 {2:09m} Kg8 {
+1.20/21 2:43m} 55. Kh2 {14s} Be4 {+1.25/20 3:07m} 56. Qb2 {6:06m (Qg3)} h4 {
+1.55/23 4:28m} 57. b5 {7s} g5 {+1.55/22 3:37m} 58. Qf2 {2:04m} Qc3 {
+1.57/21 1:04m} 59. b6 {1:16m} Kf8 {+1.64/21 4:26m} 60. Kg1 {7s (Qe2)} Qa1+ {
+1.64/20 2:24m} 61. Kh2 {9s} Qxe5+ {+1.63/18 7s} 62. Kg1 {9:24m} Qa1+ {
+1.98/21 1s} 63. Kh2 {1:25m} Qc3 {+2.36/21 1s} 64. Kg1 {33s (Qe2)} Ke7 {
+2.41/18 58s} 65. Kh2 {44s} f5 {+2.41/18 26s} 66. Kg1 {1:04m (Qe2)} Kd7 {
+2.73/17 1:09m} 67. Kh2 {6:21m} Kc6 {+2.90/20 1s} 68. Qe2 {22s (Kg1)} Kxb6 {
+2.89/18 1:06m} 69. Qf2+ {2:40m (Bc4)} Kc6 {+2.95/17 59s} 70. Qe2 {31s} Kd6 {
+2.96/17 45s} 71. Bc4 {6s (Qf2)} Qe5+ {+3.45/15 32s} 72. Kg1 {16s} Qd4+ {
+3.98/16 24s} 73. Kh2 {7s} g4 {+3.98/16 47s} 74. hxg4 {50s} fxg4 {+4.16/17 1s}
75. Qxg4 {1:09m} Qxc4 {+4.16/18 1s} 76. Qxh4 {19s} Qe2 {+4.16/16 24s} 77. Qd8+
{13s} Kc6 {+4.17/17 43s} 78. Qc8+ {7s} Kb5 {+4.17/18 43s} 79. Qb8+ {7s} Kc4 {
+4.17/18 27s} 80. Qc7+ {12s} Kd3 {+4.17/18 32s} 81. Qd6+ {2:37m (Qd7+)} Bd5 {
+4.20/18 25s} 82. Qa6+ {7s} Kd2 {+4.21/18 22s} 83. Qa5+ {6s} Kc2 {+4.25/17 16s}
84. Qa4+ {6s} Bb3 {+4.21/18 34s} 85. Qd4 {14s (Qc6+)} e5 {+4.70/17 35s} 86. Qa7
{49s (Qc5+)} e4 {+4.95/15 26s} 87. Qc5+ {24s} Bc4 {+5.10/17 11s} 88. Qa3 {
4:48m (Qf5)} Qd3 {+13.28/18 34s} 89. Qa5 {1:59m (Qa4+)} e3 {+13.69/15 33s} 90.
Qa4+ {6s} Qb3 {+13.90/14 12s} 91. Qe8 {16s (Qd7)} e2 {+14.11/13 30s} 92. Qe4+ {
8s (Qe5)} Kb2 {+14.02/14 29s} 93. Qh4 {12s} Qc3 {+M9/13 31s} 94. Qf2 {8s} Ka1 {
+M8/14 17s} *



Note also that both fruit and shredder can use the nalimov tablebases today and
in most endgames they are not important.

Uri



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