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Hot Topic (More than 10 Replies) B34: Strange Accelerated Dragon (Read 11197 times)
MNb
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Re: Strange Accelerated Dragon
Reply #11 - 04/18/11 at 15:07:39
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Analysis from Gert Jan de Boer, Schakend Nederland March 1986, game Short-Sosonko, move 14.

Quote:
Because White now prevents it with 15.h4, directly 14...g5 is principled here, though it looks rather risky. Black doesn't have to fear 15.Bxg5 Bxe5 16.Rxe5, after Qxe5 17.Qxe5 Nxe5 18.Bf6 Ng6 he has a reasonable endgame. Better is perhaps 16.Qh4 and 16...0-0? 17.Be7 Re8 18.Rxe5! can't be played. Black has to play 16...d5 and if doesn't sacced from the board on d5, he is OK.


Btw this is what I call good non-trivial explanation. Even then it was crystal clear to me what the position was about.
  
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Re: Strange Accelerated Dragon
Reply #10 - 04/18/11 at 14:20:50
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MNB, can you show the analysis to us? Can be interesting....
  
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MNb
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Re: Strange Accelerated Dragon
Reply #9 - 04/13/11 at 21:00:16
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Well, I can't blame anyone for not saving analysis from Schakend Nederland, the KNSB magazine. I did though, because I have played this myself as Black.
  
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Re: Strange Accelerated Dragon
Reply #8 - 04/13/11 at 16:57:14
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Hmm.  In his Corner a couple of Yearbooks ago, Sosonko seemed to be in line with my version (saying that the De Firmian game was a great success but it was a disaster to repeat the line against a very well-prepared Short), but without detailed analysis.
  
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MNb
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Re: Strange Accelerated Dragon
Reply #7 - 04/11/11 at 21:43:37
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In principle you recall correctly, but as far as I know the recommendations are the other way round.

6.Nxc6 bxc6 7.e5 Ng8 (I can't trust 7...Nh5) 8.Bc4 Bg7 9.Bf4 e6 10.Qf3 f5
a) 11.0-0 Nh6 12.Rad1 Qc7 13.Rfe1 Nf7 14.Qg3 Short-Sosonko, Hoogovens 1986, g5 equalizes according to some Dutch analysis a long time ago.
b) 11.0-0-0 Qc7 12.h4 Nh6 De Firmian-Sosonko, Hoogovens 1986, 13.h5 looks good.
  
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Re: Strange Accelerated Dragon
Reply #6 - 04/11/11 at 15:26:49
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From what I recall, I think a useful pair of games to look at would be De Firmian-Sosonko (showing what White should avoid) and Short-Sosonko (a model game for White).

  
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Re: Strange Accelerated Dragon
Reply #5 - 04/11/11 at 14:50:04
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WillT wrote on 04/11/11 at 13:41:50:
Thanks.  It's a little odd that 6. Be3 is played so often (1642 games compared to 933 for Nxc6 in my DB), including by such giants as Svidler and Taylor (me).  I guess Nxc6 is often just automatically dismissed as it's not normally a good idea in the Sicilian.


It's just a question of being practical. If White plays the Nc3/Be3 Accelerated Dragon main line anyway it makes perfect sense to transpose to that, and don't have to study up on such a rare sideline. Khalifman also did this in his "According to Anand" series, just transposing back to the normal repertoire. Most master-level players know that 6.Nxc6 is supposed to be good for White, but that won't do you any good if you've never studied (or developed) any theory on it. The positions are quite complex strategically, and it's easy for White to go wrong.

Besides, when surprised by it in a game, Black may very well know it better and/or have some improvement ready. A friend of mine has played the Semi-Accelerated occasionally and claims that, while it is ultimately bad, virtually nobody apart from himself knows the REAL refutation (meaning, it's not the one currently in the theory books).

If White wanted to play a Maroczy however, 6.Be3 becomes less attractive since he has then been "move-ordered" out of his repertoire. So ambitious Maroczy players really do have to prepare the Nxc6 line here, just in case.
  
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Re: Strange Accelerated Dragon
Reply #4 - 04/11/11 at 14:19:26
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WillT wrote on 04/11/11 at 13:41:50:
Thanks.  It's a little odd that 6. Be3 is played so often (1642 games compared to 933 for Nxc6 in my DB), including by such giants as Svidler and Taylor (me).  I guess Nxc6 is often just automatically dismissed as it's not normally a good idea in the Sicilian.

sometimes the move order in databases is wrong and make us think that SuperGM X played a strange move which in fact he didnt but just was plugged into the database wrongly.
  
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Re: Strange Accelerated Dragon
Reply #3 - 04/11/11 at 13:41:50
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Thanks.  It's a little odd that 6. Be3 is played so often (1642 games compared to 933 for Nxc6 in my DB), including by such giants as Svidler and Taylor (me).  I guess Nxc6 is often just automatically dismissed as it's not normally a good idea in the Sicilian.
  
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Re: Strange Accelerated Dragon
Reply #2 - 04/11/11 at 13:24:10
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It is mentioned in Donaldson and Silmans accel-dragon book.
They give it the name semi-accel dragon.

Our newly crowned County champion played this line in one of his games. He had some computer verified lines beginning with 7..Nh5 (with a later ..Ng7 ..Ne6). What he showed us looked quite reasonable (for a side line).
Obviously was played hoping for the transpositions though.
  
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Re: Strange Accelerated Dragon
Reply #1 - 04/11/11 at 13:14:45
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6.Nc6 bc6 7.e5 is know as better for White
  
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B34: Strange Accelerated Dragon
04/11/11 at 13:05:05
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I had a game on Saturday where mhy oponent played the following unusual move order:

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6

If white plays normally black seems to either get an Accelerated Dragon where the Maroczy Bind has been ruled out or a mainline Dragon where d5 can be played without the tempo-losing d6.  A quick database search revealed that the line isn't as unusual as I'd thought, and 6. Nxc6 seems to be the way to go.  Interestingly, 'Experts vs the Sicilian' doesn't seem to have anything to say about this line, which seems a fairly major omission given the number of barely-played sidelines it does cover.  Does anybody know of any sources about this line, or have any opinions about it?

Will
« Last Edit: 07/18/11 at 15:30:37 by MNb »  
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