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Hot Topic (More than 10 Replies) Alekhine: Sergeev variation (Read 1423 times)
Keano
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Re: Alekhine: Sergeev variation
Reply #10 - 04/08/16 at 19:48:12
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5/5 is pretty impressive Brabo, and objectively Black may be running too many risks. Nevertheless the line is interesting, although I may have to look elsewhere for my 4PA line  Sad
  
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brabo
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Re: Alekhine: Sergeev variation
Reply #9 - 04/08/16 at 14:23:42
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Keano wrote on 04/04/16 at 18:32:47:
@Brabo - your analysis of 8.Rc1 does look very convincing

Here is an attempt to improve for Black with 9...Na6!?







And Black can try to argue that White has over-extended. My engine is suggesting White simply give up a pawn here for comp. Not sure how many OTB players would go for that.




On my Dutch blog I already wrote in 2012 that white must be always ready to sacrifice the pawn. 2 examples below from my own practice in which I did exactly that.
The first one is from an online blitzgame.

Today my score is 5/5 with 8.Rc1 online.
In OTB I only got 1 opportunity to play 8.Rc1. Also in that game I didn't hesitate to sacrifice the pawn.


So I already was familiar with Na6. In fact my analysis of 2012 only mentions 10.Nf3 but 10.Be2 is perfectly fine too.
I also want to add that besides the pawnsacrifice with 11.d5, there is also 11.dxc5 in your line.

Conclusion the Sergeev-variation is an excellent surprise weapon but it is extremely risky against a well prepared opponent.
  
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Keano
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Re: Alekhine: Sergeev variation
Reply #8 - 04/04/16 at 20:30:08
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MartinC wrote on 04/04/16 at 19:55:03:
Drawing the sample from 4PA players, I'd have thought quite a few Smiley


haha - maybe right.
  
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MartinC
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Re: Alekhine: Sergeev variation
Reply #7 - 04/04/16 at 19:55:03
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Drawing the sample from 4PA players, I'd have thought quite a few Smiley
  
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Keano
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Re: Alekhine: Sergeev variation
Reply #6 - 04/04/16 at 18:32:47
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@Brabo - your analysis of 8.Rc1 does look very convincing

Here is an attempt to improve for Black with 9...Na6!?







And Black can try to argue that White has over-extended. My engine is suggesting White simply give up a pawn here for comp. Not sure how many OTB players would go for that.



  
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brabo
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Re: Alekhine: Sergeev variation
Reply #5 - 10/05/15 at 22:27:28
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A short summary of the rational can be read below. More can be found on my blogs (Dutch and English).

  
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Re: Alekhine: Sergeev variation
Reply #4 - 10/05/15 at 20:05:13
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Brabo:
No, sorry I missed it. I simply mentioned this game, since i saw it to day and was "atracted" to it due to some potential wild play.
I am not well acquainted with this variation, but reading the latest books, one sees that the authors claim that this is critical. So, i was simply "reporting".
In fact after 8.d5 there is the strange move 8...Bf5 played in Mozer-Fier (instead of 8...Bc8) which was analysed recently here by Tom Rendle

What is the rational behind 8.Rc1? My "knowledge of german language" is close to -100.
  
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brabo
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Re: Alekhine: Sergeev variation
Reply #3 - 10/05/15 at 19:41:06
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lg wrote on 10/05/15 at 18:58:05:
Critical is 8.d5 after 7...Be6


Did you investigate 8.Rc1 which I recommended earlier already here see http://www.chesspub.com/cgi-bin/chess/YaBB.pl?num=1267504014/30

A glimpse of my detailed analysis can be found in the article
http://chess-brabo.blogspot.be/2014/06/archiving.html

I mention in the article http://chess-brabo.blogspot.be/2015/04/password.html that I used the move 8.Rc1 with success last year.
  
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lg
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Re: Alekhine: Sergeev variation
Reply #2 - 10/05/15 at 19:28:40
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Tony

great! thanks, luis
  
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TonyRo
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Re: Alekhine: Sergeev variation
Reply #1 - 10/05/15 at 19:17:36
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lg
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Alekhine: Sergeev variation
10/05/15 at 18:58:05
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Interesting game today on playchess.com on the Sergeev variation (which probably come to light due to the two latest everyman books by Taylor and Lakdawala)

Black's move 19...dxe5 is interesting since Black is giving a piece (for a very strong pawn formation) na dnot accepted by White.
Final position is also worth seeing

Critical is 8.d5 after 7...Be6


Radnai,Adam (2327) - Sergeev,Vladimir (2446) [B03]
11th Heviz Festival Heviz (4), 05.10.2015
[Robot 11]

1.e4 Nf6 2.e5 Nd5 3.c4 Nb6 4.d4 d6 5.f4 g6 6.Nc3 Bg7 7.Be3 Be6 8.Nf3 0-0 9.Qb3 Na6 10.Be2 c5 11.Rd1 Qc8 12.Nd5 Bxd5 13.cxd5 c4 14.Qa3 Nxd5 15.Kf2 b5 16.Ng5 Nab4 17.Bd2 Nc2 18.Qf3 e6 19.Qe4 dxe5 20.fxe5 f6 21.Qxc2 fxg5+ 22.Kg1 Qd8 23.g3 Rc8 24.Kg2 c3 25.bxc3 Nxc3 26.Bxc3 b4 27.Qb3 bxc3 28.Rd3 Qd7 29.Rxc3 Rxc3 30.Qxc3 Qd5+ 31.Bf3 Qxa2+ 32.Kh3 Kh8 33.Qd3 a5 34.Qe2 Qb3 35.Be4 Qc3 36.Qd3 Qxd3 37.Bxd3 Rd8 38.Ra1 g4+ 39.Kg2 Bxe5 40.Rxa5 Bxd4 41.Ra6 e5 42.Be2 h5 43.Rxg6 Rf8 44.Ba6 Rf2+ 45.Kh1 Kh7 46.Re6 Kg7 47.h3 h4 0-1

  
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