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Hot Topic (More than 10 Replies) 3 Nf3 a6 (Read 6745 times)
kylemeister
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Re: 3 Nf3 a6
Reply #13 - 04/06/23 at 19:00:32
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Kerangali wrote on 04/06/23 at 18:07:14:
There is a Giri-MVL game right now (as of posting) in the Chessable Masters Division 2 with a similar position (by transposition: 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 a6). Tense position but Giri seemed to blunder with Bxg7.

I see that after 6. 0-0 c5 7. e4 b5 Giri played 8. Be2 instead of the old 8. Bd3. Wasn't aware of that one.

I have a fuzzy recollection of noticing a Be2 instead of the old Bd3 in another QGA line recently.
  
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Kerangali
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Re: 3 Nf3 a6
Reply #12 - 04/06/23 at 18:07:14
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There is a Giri-MVL game right now (as of posting) in the Chessable Masters Division 2 with a similar position (by transposition: 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 a6). Tense position but Giri seemed to blunder with Bxg7.
  
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kylemeister
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Re: 3 Nf3 a6
Reply #11 - 03/31/23 at 18:10:02
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On a historical note, 6. b3 was considered best and as leading to an edge for White by Taimanov (47 years ago) and Pachman (30 years ago).
  
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MNb
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Re: 3 Nf3 a6
Reply #10 - 03/31/23 at 16:21:32
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GM Kornev claims an edge for White after 6.b3 and adds that Black can draw with some accuracy (The Complete Queen's Gambit, a repertoire book for White).
  
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George Jempty
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Re: 3 Nf3 a6
Reply #9 - 03/31/23 at 15:08:22
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What about 6.b3 instead?  It doesn't necessarily transpose.
  
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Kerangali
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Re: 3 Nf3 a6
Reply #8 - 03/31/23 at 11:44:05
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Likely 1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 b5 and then 5.a4 Bb7 6.axb5 axb5 7.Rxa8 Bxa8 b3 with e.g. 8...e6 9.bxc4 bxc4 10.Bxc4 Nf6 11.0-0 Be7 12.Bb5+ c6 13.Be2 0-0 14.Nbd2 c5. No forced draw, but nothing to play for once Queenside pawns are gone.
  
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George Jempty
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Re: 3 Nf3 a6
Reply #7 - 03/31/23 at 08:44:17
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tracke wrote on 03/29/23 at 09:21:08:
3.Nf3 a6!? seems to be the recommended move order in the following, forthcoming book:

The Queen‘s Gambit Accepted
- A Modern Counterattack in an Ancient Opening -
by GM Max[im] Dlugy
Russell Enterprises, 352 pages, $30, June 2023 !?
https://www.russell-enterprises.com/upcoming-publications/the-queens-gambit-acce...
The preview of 18 pages looks promising! 

After 3.Nf3 a6!? 4.e3 there‘s no 4…Bg4 but the drawing line 4…b5 
and the main line 4…e6 5.Bxc4 Nf6, often without immediate …c7-c5.

tracke  Smiley


What drawing line with 4...b5 please?
  
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tracke
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Re: 3 Nf3 a6
Reply #6 - 03/29/23 at 09:21:08
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3.Nf3 a6!? seems to be the recommended move order in the following, forthcoming book:

The Queen‘s Gambit Accepted
- A Modern Counterattack in an Ancient Opening -
by GM Max[im] Dlugy
Russell Enterprises, 352 pages, $30, June 2023 !?
https://www.russell-enterprises.com/upcoming-publications/the-queens-gambit-acce...
The preview of 18 pages looks promising! 

After 3.Nf3 a6!? 4.e3 there‘s no 4…Bg4 but the drawing line 4…b5 
and the main line 4…e6 5.Bxc4 Nf6, often without immediate …c7-c5.

tracke  Smiley
« Last Edit: 03/29/23 at 11:02:24 by tracke »  
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fjd
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Re: 3 Nf3 a6
Reply #5 - 10/03/17 at 20:52:58
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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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fjd
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Re: 3 Nf3 a6
Reply #4 - 10/01/17 at 20:58:02
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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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fjd 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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fjd
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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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kylemeister
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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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fjd
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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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