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Very Hot Topic (More than 25 Replies) C11: Steinitz with 7 ... Qb6 (Read 19788 times)
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Re: Steinitz with 7 ... Qb6
Reply #27 - 07/29/09 at 10:21:37
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No flaming please for this post...I agree, I have not read posts before sanek9385's one  Embarrassed


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@sanek9385:

8.Na4 Qa5+ 9.c3 c4 Vaganian idea

10.b4! Nxb4?! (10...Qc7!) HgMan on chesspub forum

11.cxb4 Bxb4+ 12.Kf2 b5

and now 13.a3!? is best because

13.Nc5 Nxc5 14.dxc5 Bd7! threatening Rc8-Qc7 to take c5 pawn

15.a3 Bc3 16.Rc1 Qxa3 +=

And yes, you are right 14...Bc3?! 15.Rc1 +/-

Point is c5 pawn is no longer under attack and can be kept by c6 + Nd4...better is to wait a3 White move.

Alternative plan for Black is to play 10...Qb5 to achieve a5 or move
c6 knight like in game Nijboer-Benitah,Cappelle La Grande 2006 given
on www.chessgames.com
  

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Re: Steinitz with 7 ... Qb6
Reply #26 - 07/28/09 at 15:54:19
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French Steinitz Variation, with 7. … Qb6

       1.e4            e6
          2.d4            d5
          3.Nc3            Nf6
          4.e5            Nfd7
          5.f4                   c5
          6.Nf3            Nc6
          7.Be3            Qb6
          8.Na4            Qa5+
          9.c3            c4
          10.b4            Nxb4
          11.cxb4      Bxb4+
          12.Kf2            
          12. …            b5
          13.Nc5       Nxc5
          14.dxc5      Bc3
          15.Bd2

RYBKA advises to play 15.Rc1
How to play this case???
  
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Re: Steinitz with 7 ... Qb6
Reply #25 - 06/25/09 at 14:21:38
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Which one is Denis? Is this a translation too? Or a common Russian name?

Gotta love translation software too. Good use of the word 'phalanges'. Tricky to get that in a chess annotation normally.

Thanks for the annotation. Good quality stuff in an interesting line.
  
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Re: Steinitz with 7 ... Qb6
Reply #24 - 06/25/09 at 13:18:29
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http://74.125.91.132/translate_c?hl=en&sl=ru&tl=en&u=http://www.salinnikov.narod...

Denis is an International Master and a very experienced chess coach.
  
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Re: Steinitz with 7 ... Qb6
Reply #23 - 06/21/09 at 18:50:02
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Smyslov_Fan wrote on 06/21/09 at 07:32:12:
I don't have the game directly at hand, but around 1988, there was a classic game, Ljubojevic-M. Gurevich, which saw this pawn structure, and Black did indeed play f6 for a smashing attack.  (He sacked a N for the d+e pawns and open lines. 

You may want to look it up.  (I may have the year wrong, but I don't think I have the players wrong.)


I wonder if you're thinking of their 1991 game at Linares?

schtroumfechecs wrote on 06/14/09 at 16:32:55:
Hgman,

After looking at your original analyses (maybe not too carefully i must admit) i am surprise about your 13...00 after 13.Nb2. In your original analyse, it seems that 13...Ba3 offers black good chances.
Have you a new opinion about 13...Ba3 or did you played 13...00 just to give it a try?


Following on from S_F's post, I wasn't entirely satisfied with Black's play in the notes I first posted (quite a few years ago) after 13.Nb2.  As I mentioned, the standard 13...Bc3, which is cited in most places, is an error.  13...Ba3 isn't terrific, and launching a kingside attack with f7-f6 can help Black out.  I'm not convinced that 13...0-0 is necessarily a big improvement, but I decided that there was no imminent threat that White would advance the a-pawn (which can be uncomfortable), and Black often has trouble finding time to castle in the lines I analyzed.
  

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Re: Steinitz with 7 ... Qb6
Reply #22 - 06/21/09 at 07:32:12
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I don't have the game directly at hand, but around 1988, there was a classic game, Ljubojevic-M. Gurevich, which saw this pawn structure, and Black did indeed play f6 for a smashing attack.  (He sacked a N for the d+e pawns and open lines. 

You may want to look it up.  (I may have the year wrong, but I don't think I have the players wrong.)
  
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Re: Steinitz with 7 ... Qb6
Reply #21 - 06/18/09 at 14:15:34
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I find the positions with the piece sacrifice very fascinating, but I'm wary of doing the real analysis work and adding 7...Qb6 to my Black repertoire because White is scoring so well with the uncommon 8.a3!? protecting b2 by tactical means. Many games lead to those depressing positions where the bad French bishop is the only significant difference between Black and White.

So to all French experts: Why is 8.a3 not a problem?
  

Improvement begins at the edge of your comfort zone. -Jonathan Rowson
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Re: Steinitz with 7 ... Qb6
Reply #20 - 06/14/09 at 16:32:55
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Hgman,

After looking at your original analyses (maybe not too carefully i must admit) i am surprise about your 13...00 after 13.Nb2. In your original analyse, it seems that 13...Ba3 offers black good chances.
Have you a new opinion about 13...Ba3 or did you played 13...00 just to give it a try?
  
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Re: Steinitz with 7 ... Qb6
Reply #19 - 05/17/09 at 02:55:58
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Interesting thought.  It seems as though 14.g3 effectively rules out pushing the f-pawn, because it leaves e6 weak.

At first, I wondered about the immediate 14...f5 as a way of closing the diagonal and protecting the pawn:

A). 15.Bh3 (which I don't think is best anymore) Nb6 16.Qc2 Bd7 17.Rhc1 looks interesting, but I don't think Black is any worse off than in other lines.

B). 15.exf6 (obviously, this just helps Black) Nxf6 16.Bh3 Ne4+ and I'll happily play Black.

C). 15.Qc2 can be unpleasant for Black and probably rules out 14...f5.

Maybe the simple 14...h6 is best: 15.Bh3 Nb6 16.Qc2 Bd7.  White might have better than 15.Bh3 at this point, of course, since the e-pawn isn't as vulnerable.  Nevertheless, attacking the top of the pawn chain on e5 is difficult for Black.

I'll have to look at this some more...
  

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Re: Steinitz with 7 ... Qb6
Reply #18 - 05/10/09 at 09:41:10
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After some nice games on a wellknown server I came back to the analysis board to see if this line could be good enough for OTB - but...

1.Nc3 d5 2.e4 e6 3.d4 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3 Qb6 8.Na4 Qa5+ 9.c3 c4 10.b4 Nxb4 11.cxb4 Bxb4+ 12.Kf2 b5 13.Nb2 O-O 14.g3 with the idea of 14...f6 15.Bh3 and if Black plays something else White goes for Bh3, Kg2 and takes over

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One move I thought about is 14...Be7 and start queenside action instead of ideas with ...f6 - but somehow I think it will not work
Anyone any idea?
  
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Re: Steinitz with 7 ... Qb6
Reply #17 - 03/17/09 at 02:20:50
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Here's the conclusion to the second game.  I raced into the draw convinced I had a won endgame.   Embarrassed

Note, of course, that due to the transposition, the game is a move behind where it would typically play had it been a standard French:

1.e4 d6 2.d4 Nf6 3.f3 d5 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3 Qb6 8.Nc3 e6 9.Na4 Qa5+ 10.c3 c4 11.b4 Nxb4 12.cxb4 Bxb4+ 13.Kf2 b5 14.Nc5 Nxc5 15.dxc5 O-O 16.a3 Bc3 17.Rb1 f6 18.exf6 Rxf6 19.Nd4 a6 20.Ne2 d4 21.Bxd4 Bxd4+ 22.Qxd4 Bb7 23.h4 Rf5 24.Qd7 Rf7 25.Qxe6 Qxa3 26.Qe5 Rc8 27.Rh3 Qxc5+ 28.Qxc5 Rxc5 29.Re3 Kf8 30.g3 Rd7 31.Nc3 Bc6 32.Bg2 Rd2+ 33.Re2 Rxe2+ 34.Nxe2 Bxg2 35.Kxg2 c3 36.Nc1 a5 37.Ra1 a4 38.Kf2 Rd5 39.Ra3 c2 40.Rc3 b4 41.Rxc2 Rb5 42.Ke3 b3 43.Rb2 Kf7 44.Kd3 Rb7 45.Kc3 Rc7+ 46.Kd2 Rb7 47.Rb1 b2 48.Na2 a3 49.Nc3 Rb3 50.h5 Rxc3 51.Kxc3 a2 52.Kxb2 axb1=Q+ 53.Kxb1 Ke6 54.Kc2 Kf5 55.Kd3  1/2-1/2
  

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Re: Steinitz with 7 ... Qb6
Reply #16 - 03/15/09 at 10:19:20
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First of all sorry for my false posting in this thread - 13...Bd7 is simply bullshit - I just mixed moves, but the thing is I did not take on c5 and kept a closed position (after Nd7 I did play ...Bd7) and the white attack on the kingside led to nothing - my passed pawns were winning. Anyway the idea is to take on c5 on a convenient moment and perhaps use a tactic with a knight check on e4 - as long as the king is on f2.

I am curious how your game will end - somehow queenside pawns look blocked now and this will certainly favour White (but I had just a quick look and I may be completely wrong). But the story of the game is something to investigate, for sure.

Somehow the question remains if it's better to keep the position closed and try to withstand a kingside attack or to open it as Black.
  
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Re: Steinitz with 7 ... Qb6
Reply #15 - 03/14/09 at 18:10:58
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Matemax wrote on 02/27/09 at 15:00:22:
I gave this idea a try on ICC today. After 13.Nc5 I did not take on c5 but played 13...Bd7 (I am not sure - well looks risky, but who knows - anyway 13...Nc5 may be safer) - the game went on with 14.a3 Ba3 15.Bc1 and now 15...Nc5 16.Ra3 Ne4 17.Kf2 Qb6 and later on I continued with a pawn avalanche on the queenside and went on to win.


I'll have to consider this idea again.  I remember being tempted by 13...Bd7.  The game continues, but here is the current status (a few moves behind where we are in actuality):

1.e4 d6 2.d4 Nf6 3.f3 d5 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3 Qb6 8.Nc3 e6 9.Na4 Qa5+ 10.c3 c4 11.b4 Nxb4 12.cxb4 Bxb4+ 13.Kf2 b5 14.Nc5 Nxc5 15.dxc5 O-O 16.a3 Bc3 17.Rb1 f6 18.exf6 Rxf6 19.Nd4 a6 20.Ne2 d4 21.Bxd4 Bxd4+ 22.Qxd4 Bb7 23.h4 Rf5 24.Qd7 Rf7 25.Qxe6 Qxa3 26.Qe5 Rc8 27.Rh3 Qxc5+ 28.Qxc5 Rxc5 29.Re3 Kf8 30.g3 Rd7 31.Nc3 Bc6 32.Bg2 Rd2+ 33.Re2 Rxe2+ 34.Nxe2 Bxg2 35.Kxg2 c3 36.Nc1 a5 37.Ra1 a4 38.Kf2 Rd5 39.Ra3 c2 40.Rc3 b4 41.Rxc2 Rb5 42.Ke3 b3 43.Rb2 Kf7 44.Kd3 Rb7 45.Kc3 Rc7+ 46.Kd2 Rb7 47.Rb1 b2
  

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Re: Steinitz with 7 ... Qb6
Reply #14 - 02/27/09 at 15:00:22
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Quote:
'm currently playing a second game in this line; my opponent played 13.Nc5...

I gave this idea a try on ICC today. After 13.Nc5 I did not take on c5 but played 13...Bd7 (I am not sure - well looks risky, but who knows - anyway 13...Nc5 may be safer) - the game went on with 14.a3 Ba3 15.Bc1 and now 15...Nc5 16.Ra3 Ne4 17.Kf2 Qb6 and later on I continued with a pawn avalanche on the queenside and went on to win.
  
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Re: Steinitz with 7 ... Qb6
Reply #13 - 02/25/09 at 00:22:01
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HgMan wrote on 02/24/09 at 16:28:18:
1.Nc3 d5 2.e4 e6 3.d4 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3 Qb6 8.Na4 Qa5+ 9.c3 c4 10.b4 Nxb4 11.cxb4 Bxb4+ 12.Kf2 b5 13.Nb2 O-O 14.Qc2 f6 15.g3 fxe5 16.dxe5 Bc5 17.Bxc5 Nxc5 18.Bh3 Qa3 19.Rhd1 Ne4+ 20.Kg2 g5 21.Nd4 gxf4 22.Bxe6+ Bxe6 23.Nxe6 fxg3 24.Nxf8 gxh2 25.Nd3 Qxf8 26.Nf2 h1=Q+ 27.Rxh1 Qg7+ 28.Kf1 Ng3+ 29.Kg1 Nf5+ 30.Ng4 Qxg4+ 31.Qg2 Qxg2+ 32.Kxg2 Kf7 33.Rxh7+ Ke6 34.Rd1?? Ne3+ 0-1


I'll need to go over the game carefully.  I think White more or less has to play 16.dxe5, but you're right: it is a serious concession.  I remember thinking that 21.Nd4 was also a problem for White...
  

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Re: Steinitz with 7 ... Qb6
Reply #12 - 02/24/09 at 17:36:59
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Nice game with a nice idea for Black - I dont understand 14.Qc2, if 14.g3 White may have to chance to evacute the King or play Bh3. I think White has a bad position after the d4-pawn is removed and you made a nice finish. Playing Re1 at the end is of course better  Smiley
  
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Re: Steinitz with 7 ... Qb6
Reply #11 - 02/24/09 at 16:28:18
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Here's my first result with this piece sac.  Unfortunately my opponent blundered at the end, but I suspect I was already winning:

1.Nc3 d5 2.e4 e6 3.d4 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3 Qb6 8.Na4 Qa5+ 9.c3 c4 10.b4 Nxb4 11.cxb4 Bxb4+ 12.Kf2 b5 13.Nb2 O-O 14.Qc2 f6 15.g3 fxe5 16.dxe5 Bc5 17.Bxc5 Nxc5 18.Bh3 Qa3 19.Rhd1 Ne4+ 20.Kg2 g5 21.Nd4 gxf4 22.Bxe6+ Bxe6 23.Nxe6 fxg3 24.Nxf8 gxh2 25.Nd3 Qxf8 26.Nf2 h1=Q+ 27.Rxh1 Qg7+ 28.Kf1 Ng3+ 29.Kg1 Nf5+ 30.Ng4 Qxg4+ 31.Qg2 Qxg2+ 32.Kxg2 Kf7 33.Rxh7+ Ke6 34.Rd1?? Ne3+ 0-1

His note suggested that he meant to play 34.Re1.

I'm currently playing a second game in this line; my opponent played 13.Nc5...
  

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Re: Steinitz with 7 ... Qb6
Reply #10 - 01/18/09 at 14:47:52
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As an addition to your posted analysis I would like to add the following thread: http://www.chesspub.com/cgi-bin/yabb2/YaBB.pl?num=1214391315.
You can also check NIC YB 88 where Moskalenko mentions it. So for me it is still not clear how White can achieve advantage and the line with 7...Qb6 is far from refuted. At least the ball is in White's hands(foots) Smiley.
  
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Re: Steinitz with 7 ... Qb6
Reply #9 - 01/17/09 at 18:49:14
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Almost three years after abandoning the French, I now have two cc games that have allowed me to play the piece sacrifice, 10...Nxb4!?  Both entered the French by weird (and fascinating) transposition.  I'll post both games as we move further beyond the critical stage of the theory I originally submitted, but looking at these lines with fresh eyes strengthens my conviction that Black can cause White some serious problems here...
  

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Re: Steinitz with 7 ... Qb6
Reply #8 - 11/28/08 at 12:46:24
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I have had the opportunity to revisit this line in a correspondence game just recently, and was struck to discover that Black has a remarkable record with the piece sacrifice since 2003: +6, -3, =2!

Is this surprise value or the theoretical merits of the position?

The lone addition to the stuff I presented at the beginning of the thread seems to indicate that Black has found a number of interesting new moves after 13.Nxc5...
  

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Re: Steinitz with 7 ... Qb6
Reply #7 - 05/31/07 at 23:26:17
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FYI in line g3 above Khalifman is optimistic about Whites chances after 16Be2 (rather than Qd4) Bxc5 17Bxc5 Qxc5+ 18Qd4.
  
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Re: Steinitz with 7 ... Qb6
Reply #6 - 05/23/07 at 02:37:32
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A recent game in this line:

[Event "RUS-ch sf Urals 60th"]
[Site "Nizhnij Tagil"]
[Date "2007.03.14"]
[Round "4"]
[White "Korjakin,Artem"]
[Black "Kalmachevskikh,Viktor"]
[Result "0-1"]
[Eco "C11"]
1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3 Qb6 8.Na4 Qa5+ 9.c3 c4 10.b4 Nxb4 11.cxb4 Bxb4+ 12.Kf2 b5 13.Nc5 Qb6 14.Nxd7 Bxd7 15.Be2 Be7 16.g4 b4 17.Qc2 a5 18.Nd2 0-0 19.Kg3 a4 20.Nxc4 dxc4 21.Bxc4 Bb5 22.Rhc1 Rac8 23.Qe2 Rxc4 24.Rxc4 Bxc4 25.Qxc4 Qb7 26.Rc1 b3 27.axb3 axb3 28.Rb1 Rb8 29.f5 exf5 30.gxf5 Qe4 31.Rxb3 Rxb3 32.Qxb3 Bh4+ 33.Kh3 h5 34.Qd1 Be1 35.Bg1 Qxf5+ 36.Kg2 Bc3 37.Qf3 Qc2+ 38.Kf1 Bxd4 39.Bxd4 Qc4+ 40.Kg2 Qxd4
41.Qxh5 Qd2+ 42.Kg3 Qe3+ 43.Kh4 Qd2 44.Kh3 Qe3+ 45.Kh4 Qf4+ 46.Kh3 g6 47.Qe2 Kg7 48.Kg2 Kh6 49.h3 Qf5 50.Qb2 Qe4+ 51.Kg3 Qe3+ 52.Kg2 Kg5 53.Qb8 Qd2+ 54.Kg3 Qd3+ 55.Kg2 Kf5 56.Qe8 Qd5+ 57.Kf2 Qe6 58.Qf8 Kxe5 59.Kg3 Kf5 60.Qh6 Qe5+ 61.Kg2 Qe4+ 62.Kg1 Qf4 63.Qh7 Ke4 64.Qh8 Kf3 65.Qa8+ Qe4 66.Qa5 Qb1+ 0-1

13...Qb6 seems to be a new move, though I don't know if it's an improvement over my original analysis.  I suppose the win speaks for itself, but I'll have to look at this position more carefully...
  

"Luck favours the prepared mind."  --Louis Pasteur
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Re: Steinitz with 7 ... Qb6
Reply #5 - 07/13/06 at 01:54:17
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Steffen Pedersen's book has some good analysis on this line.  I think it was his book that made me prefer 9 ... c4 to 9 ... cxd4, when the piece sac really doesn't come off.  Worth thinking about, but I think you have more than enough options at move 7 anyway...
  

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Re: Steinitz with 7 ... Qb6
Reply #4 - 07/12/06 at 22:56:41
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Btw: I think the critical move for Black was 9....cd4.  But as I mentioned in another thread this critical line doesn't seem too good for Black any more.

Since I'm playing the Steinitz here, I will certainly consider 9...c4 before deciding my next move!

Thanks for the timely update of this thread!
  
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Re: Steinitz with 7 ... Qb6
Reply #3 - 07/12/06 at 17:49:04
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986 wrote on 04/03/06 at 21:23:22:
thanks for your analyses, in the variation G1 after the mistake 12. Bd2? I think the right move is b5 and then c3, perhabs a mispelling?

regards Tom


Absolutely right.  It should read 12 Bd2? b5 -+.  For some reason, I am unable to edit the original message.  Statute of limitations or some such thing, perhaps...
  

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Re: Steinitz with 7 ... Qb6
Reply #2 - 04/03/06 at 21:23:22
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thanks for your analyses, in the variation G1 after the mistake 12. Bd2? I think the right move is b5 and then c3, perhabs a mispelling?

regards Tom
  
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Der Stratege
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Re: Steinitz with 7 ... Qb6
Reply #1 - 04/01/06 at 02:37:25
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Hello,

First of all i need to be thankful for this inspiration. In former times i tried to play this Sacrifice with exchange on d4. But this seems not to be OK for Black.
Now i will study this line with ...c4 and post the result of it here. Hope to see u again for a Discussion then.

Regards
  
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C11: Steinitz with 7 ... Qb6
03/17/06 at 14:25:33
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Some time ago, I spent some effort working on this line.  Current books don't do it justice, especially the piece sacrifice, which I think has considerable merit.  I've since moved away from these lines, and haven't looked at these notes in awhile, but I thought I'd post them here in the hope that they might be of interest to someone.  I wonder, also, about a collaborative effort to fill in the holes.  As you will note, very little original analysis is here.  Most of it is collecting game scores and pasting them together.  So far as I recall, however, most of the text is mine...

(Note the trap after move 13 in G2).

French Steinitz Variation, with 7. … Qb6

        1.e4            e6
           2.d4            d5
           3.Nc3            Nf6
           4.e5            Nfd7
           5.f4                   c5
           6.Nf3            Nc6
           7.Be3            Qb6


A. 8.a3
B. 8.dxc5
C. 8.Qd2
D. 8.Bd2
E. 8.Rb1
F. 8.Bb5
G. 8.Na4

G.      8.Na4            Qa5+
           9.c3            c4
           10.b4            Nxb4

Safer, perhaps, is 10. … Qc7.
           11.cxb4      Bxb4+
           12.Kf2
           
12.Bd2? c3 -+
           12. …            b5

G1. 13.Nc5
G2. 13.Nb2
G3. 13.a3

G1.            13.Nc5            Nxc5
13.… Bc3 14.Bd2 Bxd2 15.Qxd2 Qxd2+ 16.Nxd2 Nxc5 17.dxc5 Kd7 18.Ke3 a5 (18.… a6 anticipates 20. axb5+ and prevents 21. Bxc4) 19.a4 Kc6 20.axb5+ Kxc5 21.Bxc4 dxc4 22.Rhc1 Bb7 23.Nxc4 Bd5 24.Nxa5+ Kxb5 25.Rcb1+ Kc5 26.Ra3 Bc4 27.Nb7+ Kd5 28.Rc3 Rhb8 29.Rd1+ Kc6 30.Rxc4+ Kxb7 31.Rb1+ 1-0 (Frolyanov-Chebotarev, Cherepovets 2001).  Alternatively, 13.… Bc3 14.f5 Nxc5 15.dxc5 Bxa1 16.Qxa1 exf5 17.e6 f6 18.Nd4 0-0 19.g3 Re8 20.Bg2 Bxe6 21.Nxe6 Rxe6 22.Bxd5 Rae8 23.Rd1 Kf8 1/2-1/2. (Ashby-Charter, Leeds 1998).
           14.dxc5      Bc3
It does seem a shame to part with this dark-squared bishop.  It has to be the strongest minor piece on the board.  14.… Bd7 15.a3 (15.Be2 Rc8 (15. ... Bc3 16.Bd2 Bxd2 17.Qxd2 Qxd2 18.Nxd2 Rc8 19.Ke3 Rxc5 20.Kd4 Rc7 ended in a long and complicated draw in Frolyanov-Salinnikov, Tomsk 2002.) 16.f5 Qc7 17.c6 Bxc6 18.fxe6 fxe6 19.Rf1 Bc3 20.Rb1 Bxe5 21.Kg1 0-0 22.Nxe5 Qxe5 23.Bxa7 Rxf1+ 24.Bxf1 Qf5 25.Rb2 e5 26.Be2 Ra8 27.Bg4 Qg5 28.Be6+ Kh8 29.Rf2 d4 (29. … Qe7! seems to be simply winning: 30.Bxd5 Rd8) 30.Qe1 g6 31.Qb4?! (31.h4) Kg7 (31.… Re8!?) 32.Qd6 Qc1+ 33.Rf1 Qe3+ 34.Kh1 Qe4 35.Bh3 Qe2 36.Qe7+ (36.Qf6+)Kh6 37.Qh4+ Qh5 38.Qf6 Qxh3 39.Qxc6 Qd3 and Black lost in Hermida Gonzalez-Alvarino Cazon, Candas 1999, perhaps on time.  It should be noted that in the final position, Black’s superior position has collapsed.  40.Qf6 Qe2 41.Bc5 and it’s White who has the winning chances) Bc3 16.Rb1 0-0 17.Nd4 Rfc8 18.Nc2 f6 19.exf6 Bxf6 20.Be2 Qd8 21.Bf3 Qe7 22.Re1 Bc3 23.Re2 Rxc5 24.Bd4 (24.Bxc5 Qxc5+ 25.Kf1 is okay for White, too) Bxd4+ 25.Qxd4 Qd6 and White had a good pull in Stanke-Paulsen, German League 1994.
           15.Bd2      Bxd2
           16.Qxd2      b4!?
           17.c6

17.Qd4 Bd7 (17.… Bb7!?) 18.Bxc4 dxc4 19.Qxc4 Bb5 20.Qb3 Ba4 21.Qc4 Rc8 (21.… 0-0, intending Rfc8; the a8-R might be better placed on b8) 22.Rhc1 0-0 returns the material and now it’s White with the passed pawn, though Black’s position looks at least equal.  Mind you, it seems a shame to part with the beautiful pawn chain that Black has built.  18.Nd2 Rc8 19.Bxc4 could be even better for White after the knight reaches e4, so Black might think about 17.… Ba6 as a means of discouraging the return of material and maintaining the initiative.
           17. …            Qb6+
           18.Nd4      a5
           19.Be2      Ba6

Black must beware of tricks involving Bxc4 and returning the piece for two of the passed pawns.  Ba6 is crucial.
           20.a4
20.Rc1? Bb5  -+
           20. …            c3
20.… Rc8!? 21. Kf1 0-0 looks like an improvement: locking in the rook on h1, and maintaining the tension.  Black should only play c3 when rooks are in position, thereby gaining tempi on the game.  Black might be rather pleased with 16. … b4!?
     21.Qe3 Bxe2 22.Kxe2 Qc5 23.Rhc1 0-0 24.Rc2 Rfe8 25.Rd1 Ra6 26.c7 Qxc7 27.Qd3 Rb6 28.Nb5 Qc6 1/2-1/2 (Ellithorpe-Gay, USA-ch corr. 1984).


G2.            13.Nb2            Ba3
Standard texts offer 13.… Bc3 14.Qc2 b4 15.Be2 Nb6 (Wittmann-Roth, Austrian Team ch., 1988) as unclear, with some initiative for Black, but 15.Rc1! looks like an important improvement: 15. … Bxb2 (forced because White threatens 16.Na4.  15.… Qxa2 16.Na4 Qxc2 17.Rxc2 and White is better.) 16.Qxb2 Qb6 17.Bxc4! dxc4 18.Rxc4 and White returned the material with a big initiative in Sundberg-Van Bruchem, ICCF 2000.
     13.… Qa3?! looks as though it might be rather effective in hampering White’s king’s efforts to retreat to g1 after Rhf1, since the bishop on e3 needs protecting, but 14.Bc1 puts the question to the Black queen, who must retreat (14.… Qc3? 15.Ng1, intending Ne2), and perhaps the best either side can hope for is a draw by repetition.  13.… f5 hasn’t been tried and might warrant some investigation, though it does allow 14.a4, which can force Black’s hand on the queenside.
           14.Qc2      f6
14.… f5!? 15.Be2 0-0 16.Rhf1 Nb6 looks interesting.
           15.Be2
15.exf6 Nxf6, with Ne4 to follow.
           15. …            0-0
           16.Rhf1      f5

16. … fxe5? 17.fxe5 Nb6—with a mind to bringing the knight to f5 via c8-e7-f5—looks like a tempting plan for Black, putting pressure on the White king along the newly opened f-file.  However, it may be too slow and Black must be wary of a rapid kingside attack.  18.Kg1 h6 19.Bxh6 and Black is floundering: 19. … gxh6 20.Qg6+ Kh8 21.Qxh6+ Kg8 22.Ng5 and White has sprung a mating trap.
     No better is 18. … Bd7 21.Ng5 g6 22.Bh5 Be8 23.Bg4 Bd7 24.Rxf8+ Rxf8 (24. … Bxf8 25.Qf2 +-) and Black needn’t continue.
           17.Kg1             Nb6
Black’s dark-squared bishop looks wonderfully mobile in this position, though the position may be hard to evaluate.
     The lone game in this line continued: 17.Kg1 Nb6 18.Nd1 Bd7 19.g4 b4 20.gxf5 exf5 21.Ng5 h6 22.Nf3 Ba4 23.Qb1 c3 24.Bd3 Rac8 25.Bc2 Bb2 26.Bxf5 Rxf5 27.Qxf5 Bxa1 28.Qe6+ Kh8 29.f5 Qb5 30.Nh4 Qe8 31.Qd6 Nc4 32.Ng6+ Kh7 33.Qxb4 Bxd1 34.Rxd1 Nxe3 35.Rxa1 Nc2 36.Qb1 Nxa1 37.Qxa1 c2 38.Qc1 Qf7 39.Nf4 Qxf5 40.Ne2 Qg4+ 41.Kf1 Qf3+ 42.Ke1 Qh1+ 43.Kd2 Qxh2 44.Kd3 Qh3+ 45.Kd2 Qg2 46.Kd3 Qe4+ 47.Kd2 h5 48.Qf1 c1=Q+ 49.Nxc1 Qc2+ 50.Ke3 Qxc1+ 51.Qxc1 Rxc1 52.Kf4 Kg6 0-1 (Bosse-Poetsch, Bad Zwesten, 2003).


G3.            13.a3            Be7
                  14.Nc5

As in the earlier lines, retreating the knight to b2 warrants consideration. 14.Nb2 Nb6?! (It’s unlikely that Black can get away with the pawn on a3: 14. … Bxa3? 15.Bc1 b4 16.Bxc4 dxc4 17.Nxc4 Qa5 18.Nd6+ and Black looks miserable.  The best option appears to be 14 … 0-0 15.Qc2 f6 and Black looks very solid.) 15.Qc2 Bd7 16.Bd2 Qa6 17.Be2 Qb7 18.Bb4 a5 19.Bxe7 Kxe7 20.g4 g6 21.h4 b4 22.a4 Rac8 23.h5 Qc6 24.Nh4 Rcf8 25.hxg6 hxg6 26.Nxg6+ fxg6 27.Qxg6 Rhg8 28.Rh7+ Kd8 29.Qh6 b3 30.Kg3 c3 31.Rc1 Qc7 32.Ba6 Qb8 33.Qh4+ Kc7 34.Rxc3+ Nc4 35.Bxc4 Qb4 36.Rxd7+ Kb6 37.Rxb3 1-0 (Mazzotti-Quinto Celle Ligure, 1989)
           14. …            Nxc5
           15.dxc5             Qc7
           16.Qd4            Bd7
           17.Be2             0-0
           18.g4             Rfc8

Black looks okay in this line.  Play continued: 19.Qc3 a5 20.Rhb1 Bxc5 21.Bxc5 Qxc5+ 22.Kg2 b4 23.axb4 axb4 24.Qc2 b3 25.Qc3 Qb6 26.Bxc4 dxc4 27.Rxa8 Rxa8 28.Qxc4 Ra2+ 29.Kg3 Qf2+ 0-1 (Maier-Gann Karlsruhe, 2003).
« Last Edit: 07/24/11 at 08:59:38 by dom »  

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