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Normal Topic C52: Subtle improvement in the Evans Gambit (Read 5794 times)
Markovich
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Re: C52: Subtle improvement in the Evans Gambit
Reply #7 - 08/02/12 at 02:02:44
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Actually yes, Smyslov Fan, your judgment was astute. That's way more important than knowing theory.
  

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Vass
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Re: C52: Subtle improvement in the Evans Gambit
Reply #6 - 08/01/12 at 08:10:15
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Smyslov_Fan wrote on 08/01/12 at 04:36:49:
...On the plus side, my evaluation matches Lasker's.

...who was hardly known as an opening expert.  Tongue

Grin Just teasing!
...Although I fully agree with your assessment.  Wink
  
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Smyslov_Fan
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Re: C52: Subtle improvement in the Evans Gambit
Reply #5 - 08/01/12 at 04:36:49
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Phooey. My 10...Nf6 isn't a novelty.

I didn't even bother to look in opening manuals, having expected Sloughter to have done that himself.

I did notice one of the games was Chigorin-Pillsbury, 1899, which Pillsbury won.

Oh well. On the plus side, my evaluation matches Lasker's.
  
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kylemeister
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Re: C52: Subtle improvement in the Evans Gambit
Reply #4 - 08/01/12 at 03:47:06
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As cited by Harding and Cafferty, Lasker considered 10...Be6 as equalizing but thought 10...Nf6 was even better. 
  
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Markovich
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Re: C52: Subtle improvement in the Evans Gambit
Reply #3 - 08/01/12 at 02:32:24
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This is Lasker's Defense, which has been known for at least, oh, ninety years to be mildly favorable for Black. White has to play forever with slightly worse pawns and nothing to make up for it. There is a literature on it, mostly old because White's partisans very soon abandoned 8.dxe5. Am I mistaken, or is it treated in Lasker's Manual of Chess?

Chess theory perhaps should be consulted before proposing to draw conclusions before move twelve, particular in these old sytems that have a vast theory no longer published in standard manuals.

P.S. Doesn't 11...Nf6 12.Ba4+ c6 13.Nd2 just lose to 13...Bxc3?
  

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Smyslov_Fan
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Re: C52: Subtle improvement in the Evans Gambit
Reply #2 - 08/01/12 at 01:41:26
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sloughter wrote on 08/01/12 at 00:14:33:
4.b4 Bxb4 5.c3 Ba5 6.d4 d6 7.O-O Bb6 8.dxe5 Nxe5 9.Qxd8ch Nxd8 10.Nxe5 Be6 11.Bb3! ...
On the other hand what does Black do if 11...Nf6 12.Ba4ch Bd7 (c6 13.Nd2 Bc7 14.Nef3 +/=) 13.Nxd7 Nxd7 14.Rd1 Nc6 15.Nc4 O-O-O 16.Nxb6ch & the Bishops should give White a long term plus.



The line with 12...c6 looks completely equal to me. Black has more long-term chances perhaps, but neither side should lose from here. What am I missing that gives white an advantage?
  
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Smyslov_Fan
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C52: Re: Subtle improvement in the Evans Gambit
Reply #1 - 08/01/12 at 01:34:46
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The moves are: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 d6 7.O-O Bb6 8.dxe5 Nxe5 9.Qxd8ch Nxd8 10.Nxe5 Be6 (10....Nf6!? has never been played, but looks interesting for Black) 11.Bb3

White scores ~75% with 11.Bb5+.

I don't see how 11.Bb3 changes the evaluation of this line. It looks about equal, with a slightly more comfortable game for white despite the structural weaknesses.




Edited:
Edited to add a comment in the pgn attachment. 10...Nf6! is not a novelty. Oh well.  ~SF July 31, 2012

« Last Edit: 08/01/12 at 04:39:01 by Smyslov_Fan »  
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sloughter
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C52: Subtle improvement in the Evans Gambit
08/01/12 at 00:14:33
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4.b4 Bxb4 5.c3 Ba5 6.d4 d6 7.O-O Bb6 8.dxe5 Nxe5 9.Qxd8ch Nxd8 10.Nxe5 Be6 11.Bb3! & Now if Black plays Bxb3 White straightens out his pawn structure and has the c4 square for his Knight.

On the other hand what does Black do if 11...Nf6 12.Ba4ch Bd7 (c6 13.Nd2 Bc7 14.Nef3 +/=) 13.Nxd7 Nxd7 14.Rd1 Nc6 15.Nc4 O-O-O 16.Nxb6ch & the Bishops should give White a long term plus.
« Last Edit: 08/01/12 at 01:35:04 by Smyslov_Fan »  
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