Author: Dan Andersson
Date: 13:11:10 03/26/04
Go up one level in this thread
On March 26, 2004 at 15:57:00, Kurt Utzinger wrote:
>On March 26, 2004 at 15:20:59, Dan Andersson wrote:
>
>>On March 26, 2004 at 15:10:37, Kurt Utzinger wrote:
>>
>>>On March 26, 2004 at 14:43:35, Dan Andersson wrote:
>>>
>>>>On March 26, 2004 at 13:49:45, Kurt Utzinger wrote:
>>>>
>>>>>[D]r1b1r1k1/ppq3pp/2n1pp2/3pP3/8/2PBQN2/PP3PPP/4RRK1 b - - 0 17
>>>>>
>>>>Instant blip on the radar.
>>>>Engine UCI 62 MB 933MHz PIII Cu-Mine:
>>>> 6 00:00 -0,64 f6f5 Nf3g5 Bc8d7 f2f4 h7h6 Ng5f3
>>>> 7 00:01 -0,51 f6f5 Nf3g5 Bc8d7 f2f4 h7h6 Ng5f3 a7a6
>>>> 8 00:01 -0,57 f6f5 Nf3g5 Bc8d7 f2f4 h7h6 Ng5f3 Qc7b6 Qe3xb6 a7xb6
>>>> 9 00:03 -0,51 f6f5 Nf3g5 h7h6 Ng5f3 Bc8d7 Re1d1 a7a6 a2a4 Re8f8
>>>>10 00:05 -0,51 f6f5 Nf3g5 h7h6 Ng5f3 Bc8d7 Re1d1 Re8f8 Rf1e1 Qc7b6 Qe3c1
>>>>11 00:09 -0,48 f6f5 Nf3g5 h7h6 Ng5f3 Bc8d7 Re1a1 Re8c8 Rf1e1 Bd7e8 Nf3d4
>>>>Nc6xd4 c3xd4
>>>>12 00:15 -0,48 f6f5 Nf3g5 h7h6 Ng5f3 Bc8d7 Re1a1 Re8c8 Rf1d1 Bd7e8 c3c4
>>>>d5xc4 Bd3xc4 Qc7e7
>>>>13 00:33 -0,48 f6f5 Nf3g5 h7h6 Ng5f3 Bc8d7 Re1a1 Re8c8 Rf1d1 a7a6 a2a3 Bd7e8
>>>>Nf3d4 Nc6xd4 c3xd4
>>>>
>>>>
>>>>
>>>>>How long needs your engine to avoid 17...fxe5? which would be
>>>>>a positonal bad move since Black remains with a passive bishop
>>>>>on c8 and a weak backward pawn on e6. Best seems to close the
>>>>>centre with 17...f5 but other moves keeping the tension are
>>>>>also stronger than 17...fxe5?
>>>>
>>>> The position seems critical after any move. Black must parry the threat
>>>>exf6/c3-c4 thus the number of possible moves are severely limited.
>>>> After 17. .. f5 then the slow 18. a3 or the brutal 18.c4 both seem promising.
>>>>
>>>>MvH Dan Andersson
>>>
>>> Hi Dan
>>> I do not agree with your comment as far as the "threat" c3-c4 is
>>> concerned. After 17...f5! the pawn advance 18.c4 looks bad to me
>>> as after 18...Nb4! 19.cxd5 Nxd5 Black is fine.
>>> Kurt
>> I kind of knew you would dig up that line :) But it is still promising for
>>white after 17. .. f5 18. c4 Nb4 19. cxd5 Nxd5 20. Qd2 Black has a couple of
>>problems. First of all the Square d6. Secondly the backwards e6. And the third
>>is the trouble extricating the bishop without weakening the c6 field. Probably
>>not losing disadvantage, but still a lot to work with for white.
>> And that still leaves the 18. a3 option.
>>MvH Dan Andersson
>
>
> Hi Dan
> In the meantime I have studied the position more deeply and now
> tend to admit that you may be right: Black's position is not at
> all a comfortable one (it's alway good to have someone who is
> very critical at speedy analysis)
> Kurt
>
>[Event "120'/40+60'/20+60'/20"]
>[Site "MyTown"]
>[Date "????.??.??"]
>[Round "?"]
>[White "Shredder 8"]
>[Black "Utzinger, K."]
>[Result "*"]
>[SetUp "1"]
>[FEN "r1b1r1k1/ppq3pp/2n1pp2/3pP3/8/2PBQN2/PP3PPP/4RRK1 b - - 0 17"]
>[PlyCount "16"]
>[TimeControl "40/7200:20/3600:20/3600"]
>
>17... f5 18. c4 (18. a3 {is perhaps even more critical for Black}) 18... Nb4 {0
>} 19. cxd5 Nxd5 20. Qd2 Rd8 21. Rc1 Qe7 22. Bc4 (22. Nd4 {also interesting})
>22... b6 23. Rfd1 Bb7 24. Qg5 Rd7 25. g4 {and White has clear advantage} *
I like these puzzle like positions. And while I do like whites prospects I'm
not saying black is toast with accurate defence. A chess position is usually
pretty resilient. I just wanted to point to anotther interesting move for white.
20. Qd4 instead of Qd2. I would probably spend a lot of time mulling the
relative merits of these moves. These critical moments like move 18 and 20 would
usually take 15 minutes in an OTB Game.
I think that a recognition of such strategic 'Chritical Moments' would help a
program. Fot those interested there are the two opaque books by Iosif Dorfman,
'The Method in Chess' and 'The Critical Moment'. Not easy to read, but some
insights from one of the best trainers in the world.
MvH Dan Andersson
MvH Dan Andersson
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