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RdC
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Re: a4 Anti-Marshall
Reply #8 - 05/28/19 at 13:07:54
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RdC wrote on 10/27/15 at 14:34:37:
The sequence runs

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 b4 9. d4


The May 2019 update in chesspublishing.com features this line.

I was musing about whether the moves d4 and a4 can be interchanged.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d4 d6 9. a4

The "normal" move against 9. c3 of 9. .. Bg4 is still very playable and after 10. c3 either .. Bxf3 or .. Qd7 .

So just an attempt to confuse Black with a transposition.
  
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brabo
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Re: a4 Anti-Marshall
Reply #7 - 10/27/15 at 14:47:57
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RdC wrote on 10/27/15 at 14:34:37:
There is another line becoming popular. As an anti-Marshall, the move 8. d4 is also possible. But what if you combine the a4 and d4 ideas?

The sequence runs

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 b4 9. d4

By analogy with the 8. d4 variation, 9. .. Nxd4 and 9. .. exd4 should be possible, but have been played very little. In practice, Black has played 9. .. d6 and now the popular choice is to play 10. dxe5 with an Exchange variation idea rarely seen after 8. d4 or even in the whole Spanish complex. Most GMs seem to have preferred to capture with the pawn, but taking with the Knight is also feasible.

I was quite impressed by how Aronian handled the position for black in the recent Sinquefield cup.

Some analysis was published on chess.com: http://www.chess.com/news/aronian-learns-his-lesson-vaults-to-lead-4616
  
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RdC
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Re: a4 Anti-Marshall
Reply #6 - 10/27/15 at 14:34:37
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There is another line becoming popular. As an anti-Marshall, the move 8. d4 is also possible. But what if you combine the a4 and d4 ideas?

The sequence runs

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 b4 9. d4

By analogy with the 8. d4 variation, 9. .. Nxd4 and 9. .. exd4 should be possible, but have been played very little. In practice, Black has played 9. .. d6 and now the popular choice is to play 10. dxe5 with an Exchange variation idea rarely seen after 8. d4 or even in the whole Spanish complex. Most GMs seem to have preferred to capture with the pawn, but taking with the Knight is also feasible.
  
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chandrashekharkoravi
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Re: a4 Anti-Marshall
Reply #5 - 08/27/14 at 19:39:26
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Here is the like chess cafe article that I am talking about


click http://www.chesscafe.com/text/abby21.pdf
  
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chandrashekharkoravi
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Re: a4 Anti-Marshall
Reply #4 - 08/22/14 at 14:43:26
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PANFR wrote on 04/04/13 at 15:48:43:
Honestly I was not impressed by the way Svidler handled the position. He forgot to move that bishop from c1, while he unprovokedly moved the rook from f1. White must find some plan which does not require Rf1-e1 if he is to achieve something- this move should be played only if it's the only way to prevent an eventual ...d6-d5 by Black. I much prefer the way Karjakin handles the position, although it may not promise much.
Here is a game I played recently at LSS. Black got a reasonable position, and while he was about to achieve ...d5 with a completely satisfactory position, I launched a wild attack and eventually won- but I really doubt if I had any real advantage, had Black opted for 23...Bd7 instead of 23...Nh4. The game after move 20 or so is a total mess, practically impossible to caclculate without engine aid.


Instead of 13...Qb7 I think Abby Marshall recommendations in Chess cafe column The Openings Explained of 13...h6 followed by Nh7 followed by attack with f5 and Ng5 is better
  
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walkingterrapin
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Why play the Colle when
you can play 1.e4!!!!!!!!!

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Re: a4 Anti-Marshall
Reply #3 - 04/12/13 at 12:26:16
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It is always going to be better to play b4, getting in a5 does not do anything concrete for white.  and plus if white plays c3 then you can continue with the marshall gambit.  Over the board i have never seen a5 used in any of the 10 or so anti games i have played in.  most of them just play c3 or h3 and against both you can just play the standard marshall gambit.

bb7 removes the possibility of being able o play the marshall gambit and it will also give them a chance to force you 2 play the Zaitsev system.
  
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PANFR
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Re: a4 Anti-Marshall
Reply #2 - 04/04/13 at 15:48:43
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Honestly I was not impressed by the way Svidler handled the position. He forgot to move that bishop from c1, while he unprovokedly moved the rook from f1. White must find some plan which does not require Rf1-e1 if he is to achieve something- this move should be played only if it's the only way to prevent an eventual ...d6-d5 by Black. I much prefer the way Karjakin handles the position, although it may not promise much.
Here is a game I played recently at LSS. Black got a reasonable position, and while he was about to achieve ...d5 with a completely satisfactory position, I launched a wild attack and eventually won- but I really doubt if I had any real advantage, had Black opted for 23...Bd7 instead of 23...Nh4. The game after move 20 or so is a total mess, practically impossible to caclculate without engine aid.
  
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brabo
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Re: a4 Anti-Marshall
Reply #1 - 03/22/13 at 08:16:33
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RdC wrote on 03/21/13 at 22:04:11:
Today's Svidler-Carlsen game sort of transposed into this. Carlsen played d6 against 6. d3, and then Svidler went a4, Carlsen then castled. Re1 itself wasn't played until move 14.

I personally found it a very bad openingchoice from Svidler going into exactly the type of positions Carlsen likes. I have published 2 articles recently on my blog discussing a bit the a4 anti-marshall system:
http://schaken-brabo.blogspot.be/2012/11/de-anti-marshall.html
http://schaken-brabo.blogspot.be/2013/02/kleuren-omwisselen.html
  
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RdC
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a4 Anti-Marshall
03/21/13 at 22:04:11
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Today's Svidler-Carlsen game sort of transposed into this. Carlsen played d6 against 6. d3, and then Svidler went a4, Carlsen then castled. Re1 itself wasn't played until move 14.

I uncovered just the one previous game from the Feb 2012 Aeroflot Open between Balogh and Salgado Lopez.



Playing this type of position with the black pieces, I've never really known whether it was better to play .. b4 allowing white to get a5 in, or to play .. Bb7 allowing the possibility of axb5 and Rxa8. I had noticed that Aronian prefers b4, with a follow up of Be6 and Carlsen did the same today.

Carlsen managed to play .. d5 and recaptured with the Rook which had gone to d8 instead of e8. This puts pressure on the  lonely a5 pawn.



Note - edited as there haven't been any games with the exact anti-Marshall move order to reach the game position.
  
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