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Normal Topic 3 Nf3 a6 (Read 892 times)
mn
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Re: 3 Nf3 a6
Reply #5 - 10/03/17 at 21:52:58
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6 d5 might be a bigger issue, as well as 6 h3 Bh5 7 Nc3 Nc6 8 0-0 Nf6 9 Re1!, when 9...Bd6 10 g4 Bg6 11 e4 leaves Black with the problem of ...e5 being met by takes, takes and f4.
  
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mn
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Re: 3 Nf3 a6
Reply #4 - 10/01/17 at 21:58:02
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I eventually did get around to looking at this: 9...b5 10 Be2 c5 looks okay for Black, e.g. 11 dxc5 Bxc5 12 f4 Rc7 13 Bf3 0-0 14 Ne2 Nbd7 15 0-0 Qb8=

Now for 3 e3  Undecided
  
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kylemeister
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Re: 3 Nf3 a6
Reply #3 - 03/11/17 at 06:35:19
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mn wrote on 03/11/17 at 03:56:28:
Ah, thank you. I'd completely missed this 6 Qb3 idea. 6...Bxf3 7 gxf3 Ra7! (Flohr) looks like an improvement over Smyslov's somewhat loosening move 7...b5, although I'm not sure if he can totally equalize. I'll have to look into this more at some point.


A bit of history:  7...Ra7 (seems an anticipation of more recent stuff) 8. Bd2 Nf6 9. Nc3 Nbd7 has been given as leading to advantage for White.  In the 1940s Fine wrote that the immediate 9...c5 is better.  In the 1970s Taimanov gave it as deserving of further attention.

With White going Nc3 and 0-0 instead of Bd2 and Nc3, Horowitz in the 1960s gave 9...c5 10. Rd1 cd 11. Rxd4 Qc7 "with an almost even game."  Taimanov in the 1970s gave that as leading to equality citing Keres*-Flohr.

Some more recent books have not mentioned 7...Ra7.

*side note:  I have some interest in the Keres move by move book ...but it's now over a month past the given publication date    Angry
« Last Edit: 03/11/17 at 08:39:08 by kylemeister »  
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mn
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Re: 3 Nf3 a6
Reply #2 - 03/11/17 at 03:56:28
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Ah, thank you. I'd completely missed this 6 Qb3 idea. 6...Bxf3 7 gxf3 Ra7! (Flohr) looks like an improvement over Smyslov's somewhat loosening move 7...b5, although I'm not sure if he can totally equalize. I'll have to look into this more at some point.

By the way, does anyone know if this 4...Bg4 line is covered in the Delchev/Semkov book? I know they have a chapter on 3...a6, but the variation index doesn't reveal what 4th move they give after 4 e3.
  
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Re: 3 Nf3 a6
Reply #1 - 03/11/17 at 02:36:48
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I wonder about the Qb3 stuff (e.g. Botvinnik-Smyslov) -- I know that has been considered += in some books over the years.
  
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3 Nf3 a6
03/10/17 at 22:55:45
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Are there any theoretical problems with the line [1 d4 d5 2 c4 dxc4] 3 Nf3 a6 - ? I've begun looking at it, and it seems like a rather attractive solution to Black's problems:

A) 4 e3 - by far the main move - 4...Bg4! 5 Bxc4 e6 6 h3 Bh5 7 Nc3 Nc6! 8 0-0 Nf6, for example, is a position from the 3...Nf6 4 e3 Bg4 line, but having bypassed the g4, Ne5xg6, Qf3 line that's meant to put the early ...a6 under pressure. Any details I've missed?

B) 4 e4!? is more complicated, but also doesn't strike me as a problem; 4...b5 5 a4 Bb7 6 axb5 axb5 7 Rxa8 Bxa8 8 Nc3 c6! looks at least okay for Black.

Is there any important possibility for White I've missed that makes this line unappealing for Black?
  
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