Author: Christophe Theron
Date: 12:13:47 10/17/00
Go up one level in this thread
On October 16, 2000 at 11:55:36, Uri Blass wrote:
>On October 16, 2000 at 11:12:48, Robert Hyatt wrote:
>
>>On October 16, 2000 at 10:03:52, Amir Ban wrote:
>>
>>>On October 15, 2000 at 04:04:05, Bruce Moreland wrote:
>>>
>>>>On October 14, 2000 at 16:15:17, Thorsten Czub wrote:
>>>>
>>>>>[Event "Open Dutch CC 2000"]
>>>>>[Site "Leiden NED"]
>>>>>[Date "2000.10.14"]
>>>>>[Round "02"]
>>>>>[White "Tiger"]
>>>>>[Black "Nimzo 8"]
>>>>>[Result "1-0"]
>>>>>[ECO "D20"]
>>>>>
>>>>>1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bb3 Nc6 7.Ne2 Bf5
>>>>>8.Nbc3 e6 9.a3 Qd7 10.O-O Be7 11.Be3 O-O-O 12.Rc1 f6 13.exf6 gxf6
>>>>>14.Na4 Nd5 15.Bc4 Na5 16.Ba2 Bg4 17.Nac3 Nxc3 18.Rxc3 Kb8 19.f3 Bh5
>>>>>20.b4 Nc6 21.b5 Na5 22.Qa4 b6 23.Nf4 Bf7 24.Rfc1 Bd6 25.Nd3 Rhg8
>>>>>26.Nc5 Bxc5 27.dxc5 e5 28.Bxf7 Qxf7 29.cxb6 cxb6 30.Qc2 Qg6 31.Qa2 f5
>>>>>32.Kh1 f4 33.Bg1 h5 34.Qe2 Qf6 35.a4 h4 36.h3 Qg5 37.R1c2 Rd7
>>>>>38.Qe1 Rdg7 39.Qe4 Rd7 40.Qe2 Rgd8 41.Qe1 Qe7 42.Qe4 Qg5
>>>>>
>>>
>>>[snip]
>>>
>>>>Assuming that the sacrifice is accepted, 45. a5 seems easy to find, but I wonder
>>>>what would have happened had black tried to keep lines closed with 45. ... b5,
>>>>which is also possible for a program to find.
>>>>
>>>
>>>If 45... b5 46. Qe2 Rd5 47. Bb6! is not clearly winning, but makes black suffer.
>>>
>>>I'm not impressed with Thorsten's line: 45... b5 46. Qb4 Rd5 47. a6 Qf6 48. Qc3
>>>Qd6 I think black is safe and clearly better. White is completely passive
>>>guarding c6, his back rank, and needs to stop the passed b-pawn somehow after a
>>>black Kc8.
>>>
>>>It seems to me that the sacrifice is interesting, but doesn't lead to any white
>>>advantage. The position looks dead even until black's terrible 52... a6. What's
>>>wrong with 52... Qg6 ? Other options exist, e.g. to play 48... Rd1 (instead of
>>>48... Qf6), which more or less kills any notion that white will win this game.
>>>
>>>Amir
>>
>>
>>This is not fair.
>>
>>You can't blame the loss on a bad/weak move by black. Not after white
>>sacrificed material. The loss was caused by the Rc6 sacrifice.
>>
>>Or at least that is what we are supposed to believe.
>>
>>:)
>>
>>(good analysis by the way. I see some short-term suffering by black, but he
>>is material ahead. And once the suffering is over, counting pawns is a good way
>>to see who is winning.)
>
>Amir did not say that black is winning but that the position looks dead even.
>
>Counting pawns will tell you that black is winning so it is not right to count
>pawns.
>
>Uri
If the position is dead even, then by all means white must play Rc6.
Because it creates opportunities.
Maybe that's what's new about Gambit Tiger.
Christophe
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