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Subject: Re: BareeV-DeepJunior draw!

Author: blass uri

Date: 03:11:03 07/08/00

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On July 08, 2000 at 03:25:53, Ed Schröder wrote:

>On July 07, 2000 at 20:35:17, Amir Ban wrote:
>
>>On July 07, 2000 at 14:52:29, Francesco Di Tolla wrote:
>>
>>>[Event "Dortmund Super"]
>>>[Site "Dortmund"]
>>>[Date "2000.07.07"]
>>>[Round "1"]
>>>[White "Bareev"]
>>>[Black "DeepJunior 6"]
>>>[Result "1/2-1/2"]
>>>
>>>1. c4 e6 2. Nc3 d5 3. d4 c6 4. e3 Nf6 5. b3 Nbd7 6. Bb2 Bd6 7. Nf3 O-O 8.
>>>Bd3 Qe7 9. O-O e5 10. Be2 e4 11. Nd2 a6 12. cxd5 cxd5 13. b4 Bxb4 14. Qb3
>>>Nb8 15. Na4 Qd6 16. Rfd1 Nc6 17. Bc3 Bxc3 18. Qxc3 Bg4 19. Bxg4 Nxg4 20.
>>>Nf1 b5 21. Nc5 Rfc8 22. Rdc1 h5 23. Rc2 Nf6 24. Rac1 Ne8 25. a4 b4 26. Qe1
>>>h4 27. h3 Qh6 28. Nb3 Rc7 29. Qe2 Raa7 30. Qg4 Kf8 31. Nfd2 Ne7 32. Rxc7
>>>Rxc7 33. Nc5 Ra7 34. Ndb3 Kg8 35. Qe2 Nc7 36. a5 Nb5 37. Qd2 Nc6 38. Na4
>>>Qf6 39. Rc5 Rc7 40. Qe2 g6 41. Qc2 Kg7 42. Qe2 Kh8 43. Qc2 Qd6 44. Qe2 f5
>>>45. Qd1 Kh7 46. Qe2 Rf7 47. f4 exf3 48. Qxf3 Ne7 49. Qf4 Qxf4 50. exf4 Rf6
>>>51. Nb6 Rd6 52. Kf2 Kh6 53. Nc8 Nxc8 54. Rxc8 Kg7 55. Ke3 Re6+ 56. Kd3 Re1
>>>57. Rc1 Rxc1 58. Nxc1 Kf6 59. Na2 b3 60. Nb4 Ke6 61. Nxa6 Kd6 62. Nb4 Nxd4
>>>63. Kc3 Ne2+ 64. Kxb3 Nxf4 65. a6 Kc7 66. Kc3 g5 67. Kd4 g4 68. Kc5 d4 69.
>>>Kxd4 Nxg2 70. Nd3 gxh3 71. Nf2 h2 72. Ke5 f4 73. Ke4 Kb6
>>>1/2-1/2
>>
>>Some comments from Dortmund:
>>
>>The game lasted 6.5 hours, ending two hours after all the other games. We ran
>>into Bareev and Kramnik later on a Dortmund street. Bareev admitted says he's
>>dead tired.
>>
>>Bareev thinks 68... d4 is a mistake and that 68... Kb8 instead wins.
>>
>>I asked him why 13. b4. He said "to confuse the computer". He overlooked and was
>>impressed by 14...Nb8. Boris Alterman thinks b4 is nonsense and doesn't
>>understand what's wrong with simpler answers like 14... Nb6 or 14... Rd8.
>>
>>The score was a roller-coaster in the later part of the game. Junior thought
>>that 56...Re1 is winning, then it failed low, but either there was nothing
>>better or timeout occurred. Later it seemed to work out anyway to a won knight
>>endgame, but the result was a draw.
>>
>>The game was in Bareev's typical style: all positional, no tactics whatever. He
>>defended very accurately in the end (but 55.Ke3 doesn't look right).
>>
>>Interesting comment: Bareev thought the computer was clearly excellent in
>>strategics but not so good in tactics ! Kramnik also joined in the opinion that
>>computers miss many tactics.
>>
>>Something to think about.
>>
>>Tomorrow Huebner. Sunday Adams.
>>
>>By the way, Junior needs 3 points to make the first computer GM norm ever.
>>
>>Amir
>
>Hi Amir,
>
>[d]6k1/2r2p2/p1n2qp1/PnRp4/Np1Pp2p/1N2P2P/2Q2PP1/6K1 b - -
>
>I don't understand 41..Kg7 as it allows 42.Nb6 (not played by Bareev).
>IMO after 42.Nb6 it is white having the better position after all the
>exchanges.
>
>Rebel analysis:
>
>41..Kg7 (-0.56) 14 plies
>41..Qd6 (+0.74) 14 plies
>
>I can't explain the 1.30 difference. What do I miss? Did Junior see
>something very deep or does Rebel and Junior have a total different
>evaluation here.
>
>Ed

Another possibility is that there is a bug in Junior

Junior5.9's evaluation at depth 18 from white's point of view.
after 41...Qd6 (-0.51)
after 41...Kg7 42.Nb6(+0.18)

Uri



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