Author: Robert Hyatt
Date: 21:37:15 12/18/03
Go up one level in this thread
On December 17, 2003 at 17:58:13, Omid David Tabibi wrote:
>On December 17, 2003 at 15:11:04, Peter Berger wrote:
>
>>For information about setup and rules:
>>http://www.talkchess.com/forums/1/message.html?336001
>>
>>Crafty 19.4 - Junior 8.0.0.2
>>[D]2q1r1k1/5p1p/2P5/p1rn2p1/Qb1Nn3/6PP/1P4BK/R1B2R2 b - - 0 1
>>
>>Not a bad testposition at all - 26. ..Nxg3 is not so easy to find for some
>>engines. White is toast.
>
>Falcon Graz running on GenuineIntel 733MHz 256MB:
>depth time nodes nps score variation
> 3/ 8 0.03 1k 34k -0.64 1...c8c7 1.a4b3 g8h8 2.g2e4 e8e4
> 3/ 9 0.04 1k 42k -0.50 1...c5c4 1.a4d1 c8c7 2.g2e4 e8e4
> 4/14 0.06 3k 53k -0.50 1...c5c4 1.a4d1 c8c7 2.g2e4 e8e4
> 5/19 0.13 13k 102k -0.70 1...c5c4 1.f1d1 c8c7 2.a4b3 d5b6
> 3.g2e4 e8e4
> 5/19 0.16 16k 104k -0.57 1...c8c7 1.a4b3 d5f6 2.d4f5 c5c6
> 3.f5h6 g8f8 4.g2e4 e8e4 5.c1g5
> 6/21 0.25 28k 114k -0.83 1...c8c7 1.a4b3 d5f6 2.h2g1 c5e5
> 3.c1e3
> 6/21 0.37 42k 114k -0.70 1...c5c4 1.f1d1 c8c7 2.a4b3 d5b6
> 3.g2e4 e8e4
> 7/21 0.95 126k 132k -0.97 1...c5c4 1.f1d1 c8c7 2.a4b3 d5b6
> 3.g2e4 e8e4 4.c1e3
> 7/22 1.20 165k 137k -0.61 1...c8c7 1.a4b3 d5f6 2.a1a2 c5e5
> 3.d4f5 g8h8
> 8/23 2.85 395k 138k -0.44 1...c8c7 1.a4b3 b4d2 2.g2e4 e8e4
> 3.c1d2 e4d4 4.d2e3 d5e3 5.b3e3 c5c2
> 6.h2g1
> 9/26 6.65 946k 142k -0.44 1...c8c7 1.a4b3 b4d2 2.g2e4 e8e4
> 3.c1d2 e4d4 4.d2e3 d5e3 5.b3e3 c5c2
> 6.h2g1
>10/28 19.54 2904k 148k -0.18 1...c8c7 1.a4b3 b4d2 2.g2e4 e8e4
> 3.c1d2 e4d4 4.d2g5 c5c6 5.a1e1 c6e6
>10/32 28.32 4291k 151k -0.14 1...e4g3
>10/32 34.99 5339k 152k 0.28 1...e4g3 1.h2g3 c8c7 2.g3f2 c7e5
> 3.f2g1 e5d4 4.g1h1 d5c7 5.a4b3 e8e6
> 6.h1h2
>11/37 58.43 9054k 154k 0.33 1...e4g3 1.h2g3 c8c7 2.g3f2 c7e5
> 3.d4f3 e5e2 4.f2g1 c5c2 5.f3e1 b4e1
> 6.a4g4 e1f2 7.g1h1 e2g4 8.h3g4
>
>
>A classical example of a game where evaluation is more important than 10 to 1
>time handicap :)
Yes, but _not_ the way you think. How many times do you do that sac where
it is _wrong_? knight for pawns is only good if it leads to an immediate
tactical win. Your PV isn't showing that. Play on ICC enough and you will
see where that leads to trouble. That's why I have the "bad trade" code
which is what is making _this_ particular case hard to see. But it fixes
far more of these cases than it hurts.
So there is evaluation, and there is evaluation.
What you think is good is not necessarily so most of the time.
>
>
>
>>
>>Crafty itself can't find it in an acceptable time on my Athlon 2600+ at all.
>>Ruffian and Yace need some time too.
>>
>>25. ..g5 is even more difficult if it has to be found with the right idea.
>>
>>Junior played this as a positional sacrifice in fact (who says computers can't
>>sac?) and still had some work to do to find the next moves.
>>
>>It hit Crafty (and the spectator ;) ) completely out of the blue, although if
>>you have seen it is not so tough to understand why it works.
>>
>>Thanks for the chess lesson, Junior!
>>
>>Peter
>>
>>(all comments without any warranty at all of course)
>>
>>Standing: Junior 4 - Crafty 4 ( 7 draws)
>>
>>Peter
>>
>>[Event "Blitz:120'+10"]
>>[Site "Berlin"]
>>[Date "2003.12.16"]
>>[Round "15"]
>>[White "Crafty 19.4"]
>>[Black "Junior 8.0.0.2"]
>>[Result "0-1"]
>>[ECO "E46"]
>>[Annotator "P233-PIV2.0GHz"]
>>[PlyCount "148"]
>>[EventDate "2003.??.??"]
>>[TimeControl "7200+10"]
>>
>>{16MB, Junior8.ctg, P233MMX} 1. d4 {0} Nf6 {1} 2. c4 {3} e6 {0} 3. Nc3 {2} Bb4
>>{0} 4. e3 {(f3) 4} O-O {0} 5. Nge2 {(Ld3) 4} d5 {0} 6. a3 {4} Be7 {0} 7. cxd5 {
>>4} exd5 {0} 8. g3 {(b4) 4} a5 {0} 9. Bg2 {4} c6 {0} 10. O-O {4} Re8 {0} 11. h3
>>{3} Na6 {0} 12. f3 {(Ld2) 271} b5 {0.02/17 427} 13. e4 {255} b4 {0.29/15 68}
>>14. Na4 {204} Nc7 {0.18/15 0} 15. Nb6 {200} Rb8 {0.17/16 0} 16. Nxc8 {204} Qxc8
>>{0.26/15 235} 17. axb4 {(e5) 199} Bxb4 {0.19/15 494} 18. Qc2 {5} c5 {
>>0.27/15 313} 19. Bf4 {(e5) 5} Rb7 {0.01/13 156} 20. dxc5 {197} Rb5 {
>>-0.08/13 331} 21. c6 {(Le3) 137} Rc5 {-0.13/13 194} 22. Qa4 {(Dd3) 5} dxe4 {
>>-0.26/14 419} 23. fxe4 {(Ld6) 10} Nxe4 {-0.15/13 212} 24. Kh2 {(Tad1) 240} Nd5
>>{-0.50/13 283} 25. Nd4 {(Tad1) 299} g5 {-1.03/14 279} 26. Bc1 {168} Nxg3 {
>>-0.73/13 178} 27. Kxg3 {490} Qc7+ {-1.33/13 0} 28. Kf2 {137} Rc4 {-1.63/13 177}
>>29. Kg1 {(Lxg5) 6} Rxd4 {-1.92/11 140} 30. Qc2 {(Lxg5) 5} h6 {-1.57/12 268} 31.
>>Kh1 {(Df2) 146} Re6 {-1.71/12 83} 32. Qf2 {143} Bc5 {-1.19/13 29} 33. Rxa5 {
>>(Ld2) 116} Rf6 {-1.81/11 21} 34. Rxc5 {(Ta8+) 134} Rxf2 {-1.75/15 317} 35. Rxf2
>>{5} Qb6 {-2.22/14 280} 36. Rcc2 {6} Rd1+ {-1.99/14 144} 37. Rf1 {5} Qd4 {
>>-1.99/15 125} 38. Rc4 {5} Qxc4 {-1.95/14 45} 39. Rxd1 {4} Ne7 {-2.17/14 63} 40.
>>Rd8+ {93} Kh7 {-2.18/16 0} 41. Bd2 {172} Nxc6 {-2.36/16 0} 42. Re8 {122} Nd4 {
>>-2.75/16 0} 43. Bc3 {(Te1) 142} Ne6 {-2.56/14 86} 44. Re7 {(Kg1) 120} Kg6 {
>>-2.74/15 94} 45. Rd7 {17} Qe2 {-3.09/14 30} 46. Rd2 {(Td6) 127} Qe1+ {
>>-3.15/15 55} 47. Kh2 {4} Qe3 {-3.21/15 23} 48. Kh1 {87} f5 {-3.73/16 0} 49. Rc2
>>{(Kh2) 516} f4 {-4.61/15 72} 50. Bf1 {149} f3 {-6.96/15 0} 51. Bb4 {(La5) 426}
>>f2 {-7.51/12 18} 52. Rc4 {323} Qe1 {-9.04/17 0} 53. Kg2 {75} Nf4+ {-9.22/17 1}
>>54. Rxf4 {20} gxf4 {-9.52/16 83} 55. Bc5 {(h4) 5} Qe4+ {-9.52/15 29} 56. Kxf2 {
>>38} Qc2+ {-9.82/15 25} 57. Kf3 {433} Qxc5 {-12.58/17 0} 58. Bd3+ {(h4) 382} Kg5
>>{-15.42/14 37} 59. h4+ {5} Kxh4 {-#14/14 49} 60. Kxf4 {4} Qd4+ {-#14/3 4} 61.
>>Be4 {15} h5 {-#14/3 15} 62. Kf3 {(Kf5) 44} Qxe4+ {-#14/3 0} 63. Kxe4 {(Kf2) 40}
>>Kg3 {-#14/1 1} 64. b4 {4} h4 {-#13/1 0} 65. b5 {3} h3 {-#12/1 0} 66. b6 {3} h2
>>{-#11/1 0} 67. Kd5 {(Kd3) 2} h1=Q+ {-#10/1 0} 68. Kd6 {(Kc4) 4} Qb7 {-#9/1 0}
>>69. Kc5 {4} Kf4 {-#8/1 0} 70. Kd4 {4} Qxb6+ {-#7/1 0} 71. Kc4 {(Kc3) 3} Ke4 {
>>-#6/1 0} 72. Kc3 {3} Qd4+ {-#5/1 0} 73. Kb3 {4} Kd3 {-#4/1 0} 74. Ka2 {6} Kc2 {
>>-#3/1 0} 0-1
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