Author: Uri Blass
Date: 07:47:51 01/04/02
Go up one level in this thread
On January 04, 2002 at 10:00:40, Ingo Bauer wrote:
>Hi
>
>>Shredder6 could not avoid Nxb5 even in 112 seconds
>>based on the pgn of it's games against tiger aggresive.
>
>This is what S6 thinks on a A1600+ with 256 MB. S6 needs 29 Seconds to avoid
>Nxb5. On a P800 it should need around 1 min (little less).
>
>Ingo
>
>>[D]8/5rbk/6q1/1p1Q4/1PpP2p1/2N2p2/5PP1/3R2K1 w - - 0 1
>
>Engine: Shredder 6
>by Stefan Meyer-Kahlen
>
> 8.01 0:02 -0.01 1.Nxb5 g3 2.gxf3 gxf2+ 3.Kxf2 Qc2+ 4.Kg3 Qg6+ 5.Kf2 Qc2+
>6.Kg3 Qg6+ 7.Kf2 Qc2+ (612.395) 279.2
> 9.01 0:04 -0.01 1.Nxb5 g3 2.gxf3 gxf2+ 3.Kxf2 Qc2+ 4.Kg3 Qg6+ 5.Kf2 Qc2+
>6.Kg3 Qg6+ 7.Kf2 Qc2+ (1.255.226) 306.4
> 10.01 0:08 -0.26-- 1.Nxb5 g3 2.gxf3 Rf5 3.Qxc4 Rxf3 4.Kg2 Qe4 5.fxg3 Rd3+
>6.Kg1 Rxd1+ 7.Qf1 (2.887.596) 334.4
> 10.01 0:10 -0.76-- 1.Nxb5 g3 2.gxf3 Rf5 3.Qxc4 Rxf3 4.Kg2 Qe4 5.fxg3 Rd3+
>6.Kh3 Rxd1 7.Nd6 Qxd4 (3.686.650) 338.9
> 10.01 0:27 -2.15 1.Nxb5 Rf5 2.Qb7 g3 3.gxf3 Qh6 4.Kf1 Qh1+ 5.Ke2 Qxd1+
>6.Kxd1 g2 7.Ke2 g1Q 8.Qe4 Qg6 9.Nd6 Rf8 10.Nxc4 Qxe4+ 11.fxe4 Bxd4 (9.714.038)
>356.6
> 10.02 0:29 -2.14++ 1.Re1 fxg2 2.Kxg2 Qf5 3.Qxf5+ Rxf5 4.Ne4 Bxd4 5.Kg3 Rxf2
>6.Kxg4 (10.582.050) 355.3
> 10.02 0:30 -1.79++ 1.Re1 fxg2 2.Kxg2 Qf5 3.Qxf5+ Rxf5 4.Ne4 Bxd4 5.Kg3 Kg6
>6.Kxg4 Rd5 7.Re2 (10.802.444) 355.7
> 10.02 0:36 -0.98 1.Re1 fxg2 2.Kxg2 Qf6 3.Rf1 Qf5 4.Qc6 Rf6 5.Qb7 Qf3+ 6.Qxf3
>gxf3+ 7.Kg3 (12.875.884) 352.2
> 10.04 0:38 -0.97++ 1.g3 Qf5 2.Qxb5 Qxb5 3.Nxb5 Rf5 4.Nc3 Bxd4 5.Ne4
>(13.589.554) 351.7
> 10.04 0:39 -0.97 1.g3 Rf5 2.Qe4 Rh5 3.Qa8 Qh6 4.Qe4+ Kg8 5.d5 Bxc3 6.Qxg4+
>Kh7 7.Qd7+ Kg6 8.Qe8+ Kf5 9.g4+ Kxg4 10.Qe6+ (13.961.952) 351.4
> 10.06 0:40 -0.96++ 1.Ne4 Rf5 2.Qd7 Rh5 3.Ng3 fxg2 (14.259.314) 350.7
> 10.06 0:41 -0.69 1.Ne4 Rf5 2.Qd7 Rh5 3.Ng3 Qc2 4.Re1 Qd2 5.Rb1 Rg5 6.Nf5
>(14.686.167) 349.9
> 10.19 0:51 -0.68++ 1.Qe4 fxg2 2.Kxg2 Qxe4+ 3.Nxe4 Rd7 4.d5 Kg8 5.f3 gxf3+
>6.Kxf3 Rf7+ 7.Ke3 Bh6+ 8.Ke2 Bd2 (17.744.055) 346.6
> 10.19 0:52 -0.57 1.Qe4 Qxe4 2.Nxe4 Rd7 3.d5 Kg8 4.gxf3 gxf3 5.d6 Kf7 6.Ng5+
>Ke8 7.Nxf3 Bb2 (18.248.957) 347.0
> 11.01 0:55 -0.81 1.Qe4 fxg2 2.Kxg2 Qxe4+ 3.Nxe4 Rf4 4.Ng5+ Kg6 5.Ne6 Rf3
>6.Nxg7 Kxg7 7.Kf1 g3 (19.229.894) 348.3
> 11.05 1:02 -0.80++ 1.Ne4 Rf5 2.Qd7 Rh5 3.Ng3 Qc2 4.Re1 Qd2 5.Nxh5 Qxb4 6.Kh2
>fxg2 (21.802.308) 347.0
> 11.05 1:04 -0.80 1.Ne4 Rf5 2.Qd7 Rf4 3.gxf3 gxf3+ 4.Ng3 Rg4 5.Kf1 c3 6.Qf5
>Bxd4 (22.353.678) 346.7
> 12.01 1:43 -0.67 1.Ne4 Rf5 2.Qb7 Rf4 3.Re1 fxg2 4.Kxg2 Qf5 5.Kg1 Kh8 6.Qb8+
>Bf8 7.Qe8 Qd5 (35.438.582) 342.7
> 13.01 2:42 -0.73 1.Ne4 Rf5 2.Qb7 fxg2 3.Kxg2 Kg8 4.Ng3 Rf8 5.Qxb5 Qf7 6.f4
>gxf3+ 7.Kf2 Rd8 8.Nf5 (55.880.933) 344.6
>best move: Nc3-e4 time: 4:07.806 min n/s: 351.744 CPU 99.2% nodes: 87.160.957
This is what shredder6(64 mbytes hash)
did in the game that was posted
it used almost 2 minutes on 1600 mhz and got depth 11 but could not
avoid Nxb5 when your shredder6 could avoid Nxb5 at depth 10.
note that I have not shredder6 but I suspect that
shredder6 may have some hash table bug after seeing it.
[Event "Shredder6-3"]
[Site "Dual MP 1600+"]
[Date "2002.01.03"]
[Round "3.1"]
[White "Shredder 6"]
[Black "Gambit Tiger 2.0"]
[Result "0-1"]
[ECO "B31"]
[PlyCount "159"]
[EventDate "2002.01.03"]
1. e4 {0} 1... c5 {0} 2. Nf3 {0} 2... Nc6 {0} 3. Bb5 {0} 3... g6 {0} 4. O-O {0}
4... Bg7 {0} 5. Re1 {0} 5... e5 {0} 6. a3 {0} 6... a6 {0.48/14 104} 7. Bc4 {
0.32/15 108} 7... d6 {0.44/14 0} 8. d3 {0.23/14 104} 8... Nf6 {(b5) 0.38/14 16}
9. Bg5 {(Nc3) 0.25/14 143} 9... b5 {0.26/14 88} 10. Bd5 {(Ba2) 0.29/14 0} 10...
Qc7 {(Bb7) 0.14/14 95} 11. Nc3 {0.31/12 91} 11... Be6 {0.12/13 63} 12. Qd2 {
(b4) 0.42/11 1} 12... h6 {(0-0) -0.02/14 63} 13. Bxf6 {0.46/11 106} 13... Bxf6
{-0.02/14 0} 14. Rac1 {(b4) 0.50/11 105} 14... Rb8 {(0-0-0) -0.12/12 61} 15.
Qe3 {(Bb3) 0.26/12 122} 15... Qd7 {(Nd4) -0.32/13 166} 16. h3 {
(Ba2) 0.28/12 118} 16... Nd4 {(Bg7) -0.54/13 67} 17. Ba2 {(Red1) 0.03/12 97}
17... Bxa2 {(0-0) -0.54/15 116} 18. Nxa2 {0.25/12 12} 18... O-O {
(Qe7) -0.20/14 77} 19. Nc3 {0.25/14 110} 19... Kg7 {(Bg7) -0.22/15 23} 20. Nd5
{0.25/14 92} 20... Nxf3+ {(Bd8) -0.04/17 188} 21. Qxf3 {0.32/12 7} 21... Bg5 {
(Bh4) -0.02/14 77} 22. Rcd1 {(Rb1) 0.23/14 120} 22... Qe6 {(Bh4) 0.00/13 77}
23. Qg3 {(c3) 0.33/13 72} 23... f5 {-0.10/14 103} 24. b3 {(Qf3) 0.12/13 21}
24... f4 {(Rb7) -0.20/13 57} 25. Qf3 {0.34/13 15} 25... Rb7 {(a5) -0.08/13 220}
26. c3 {0.37/13 54} 26... Bh4 {(Rbb8) -0.04/13 229} 27. Rb1 {(Rd2) 0.42/13 99}
27... Rc8 {(Rbb8) -0.10/11 34} 28. Ra1 {(Rb2) 0.35/13 115} 28... Rbb8 {
(Kh7) -0.09/11 46} 29. Rac1 {(Ra2) 0.36/13 61} 29... Kg8 {(Kh7) -0.10/11 37}
30. Red1 {(Rc2) 0.35/13 68} 30... Kh7 {-0.06/12 52} 31. Rb1 {(Rd2) 0.36/14 67}
31... Rb7 {(Bg5) -0.06/12 30} 32. Rdc1 {(Rd2) 0.34/13 126} 32... Kg7 {
(Rbb8) -0.09/11 31} 33. Ra1 {(c4) 0.37/12 76} 33... Rbb8 {(Be7) -0.06/11 44}
34. d4 {(b4) 0.47/12 45} 34... c4 {-0.08/13 75} 35. b4 {(bxc4) 0.48/14 0} 35...
exd4 {(Qd7) -0.14/12 24} 36. cxd4 {0.74/12 26} 36... Qd7 {0.22/13 43} 37. Ra2 {
(a4) 0.44/13 4} 37... Bg5 {0.04/10 16} 38. Rac2 {(Rca1) 0.47/12 17} 38... Rf8 {
(Qa7) -0.06/12 39} 39. a4 {(Ra2) 0.42/12 25} 39... Kh7 {(Bf6) 0.00/10 13} 40.
Rd1 {(Ra2) 0.42/12 52} 40... Rbe8 {(Bf6) -0.04/11 18} 41. axb5 {0.51/11 7}
41... axb5 {0.15/16 100} 42. Ra2 {0.61/15 0} 42... Bf6 {(Qb7) 0.14/14 58} 43.
Ra6 {(Nc3) 0.67/13 75} 43... Bg7 {0.30/15 141} 44. Ra5 {(Nc3) 0.53/14 0} 44...
Rf7 {(Rd8) 0.15/14 47} 45. Ra6 {(Nc3) 0.52/15 157} 45... Rff8 {(Rb8) 0.15/16 56
} 46. Ra5 {0.52/14 156} 46... Rf7 {(Rb8) 0.15/14 53} 47. Nc3 {0.51/14 40} 47...
Rb8 {0.15/15 59} 48. Ra6 {0.48/14 4} 48... g5 {(Rff8) 0.16/13 50} 49. Nd5 {
(e5) 0.64/13 107} 49... Re8 {0.15/14 73} 50. Nc3 {(Ra5) 0.52/14 70} 50... Rb8 {
0.15/17 55} 51. Nd5 {0.55/13 2} 51... Re8 {0.15/17 55} 52. Ra5 {0.49/13 27}
52... Qe6 {(Kg8) 0.18/15 83} 53. Nc3 {0.72/14 127} 53... Rb8 {0.15/15 0} 54.
Kf1 {(Ra6) 0.48/14 165} 54... Rfb7 {(Qd7) 0.15/14 56} 55. Ra6 {(Nd5) 0.63/13 76
} 55... Rb6 {0.15/15 56} 56. Ra3 {(Ra7) 0.61/13 42} 56... R6b7 {0.15/14 52} 57.
Ra6 {0.60/15 55} 57... Rb6 {0.15/16 2} 58. Raa1 {0.64/13 99} 58... Qf7 {
(Rf8) 0.15/14 59} 59. Kg1 {(Ra5) 0.77/14 106} 59... R6b7 {(Re8) 0.15/13 69} 60.
Ra6 {0.76/14 73} 60... Rb6 {0.15/15 0} 61. Ra5 {(Raa1) 0.76/14 48} 61... R6b7 {
0.20/15 258} 62. Ra6 {(e5) 0.76/16 0} 62... Rb6 {0.15/15 51} 63. Ra5 {
0.77/15 57} 63... R6b7 {0.15/15 51} 64. Qg4 {0.73/13 26} 64... Qg6 {
(Rb6) 0.24/14 115} 65. Ra6 {(h4) 0.89/13 60} 65... h5 {(Rd8) 0.32/13 42} 66.
Qe2 {(Qf3) 0.52/13 62} 66... g4 {-0.08/14 52} 67. hxg4 {0.30/13 0} 67... hxg4 {
0.18/14 71} 68. e5 {0.28/13 25} 68... f3 {0.44/13 75} 69. Qe3 {0.21/13 88}
69... Rb6 {(Bh6) 0.30/12 0} 70. Ra7 {(Rxb6) 0.17/13 107} 70... dxe5 {
(R6b7) -0.04/13 119} 71. Qxe5 {(dxe5) -0.05/12 143} 71... R6b7 {
(Kh8) -0.78/14 49} 72. Rxb7 {(Qh2+) 0.08/12 104} 72... Rxb7 {-0.72/11 11} 73.
Qd5 {(Qe3) 0.08/13 94} 73... Rf7 {(Rb6) -0.72/13 47} 74. Nxb5 {
(g3) -1.11/11 112} 74... Rf5 {(g3) -4.30/13 43} 75. Qb7 {(Qe4) -2.12/9 40}
75... Qh5 {(g3) -8.68/13 73} 76. Nd6 {(Qc7) -6.01/10 65} 76... g3 {-9.78/12 38}
77. Qxg7+ {-7.26/12 14} 77... Kxg7 {-10.18/14 12} 78. Nxf5+ {-7.75/12 40} 78...
Qxf5 {-9.34/12 5} 79. Rf1 {-11.40/11 24} 79... gxf2+ {-10.78/13 41} 80. Kxf2 {
(Rxf2) -15.02/13 0} 0-1
Uri
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