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Hot Topic (More than 10 Replies) C02: Advance 6.a3 and 9.Be3 (Read 9784 times)
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Re: Advance 6.a3 and 9.Be3
Reply #14 - 03/14/09 at 15:50:19
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Paul Cumbers wrote on 03/12/09 at 02:46:43:
20...Qe7 21.Nc4 Qh4+ 22.g3

Of course, White could try and improve on this, e.g. 22.Kd1 (with the possibility of running the king over to the queenside: Kc2-b1 or Rc2 & Kc1-b2), or 21.Qb3 (taking the sting out of ...a6). I haven't been entirely convinced by anything I've looked at (from Black's point of view) after either of these moves.

Any ideas as to how Black should continue after 22.Kd1 or 21.Qb3 Undecided ?
  
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Re: Advance 6.a3 and 9.Be3
Reply #13 - 03/12/09 at 02:46:43
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oddjob290 wrote on 03/11/09 at 10:22:11:
21. Qh4+!? looks much better after going down that route. My engine reckons the 25. Qc2 variation (leads to a possible rook endgame where Black has the active rooks on the f-file plus a passed a-pawn) looks more tougher to break down than then 25. Rc3 where here, White is about to give the material back due to the powerful c6 bishop...

20...Qe7 21.Nc4 Qh4+ 22.g3 Qh6 23.Ne2 a6 24.Qb3 Rf3 25.Qc2 Bxb5 is a sneaky line for White, losing a tempo with his queen so he can take on e4 without being skewered by ...Bc6! After 26.Qxe4 Raf8 27.Qxb7 (pre-empting ...Bc6), Black will find it difficult to win the rook and pawn ending following 27...Qh3 28.Qe4 Qg2 29.Kd2 Bxc4 30.Rhg1 Qxe2+ 31.Qxe2 Bxe2 32.Kxe2, so 27...Re3! (intending ...Qf6/Qh5 without allowing Qe4) is the way to continue the initiative, e.g.:

(i) 28.Nxe3? Qxe3 29.Qg2 Bxe2 30.Qxe2 Qxc1+ wins;
(ii) 28.Qg2 Ref3! shuts the trapdoor on the queen, leaving White very passive (if 29.Nf4, then 29...R8xf4! 30.gxf4 Qxf4);
(iii) 28.Rc2 Rb3 29.Rb2 Rxb2 30.Nxb2 Qe3 31.Qg2 Qb3 32.Nd1 Qc4  Smiley;
(iv) 28.h4 (planning to defend along the 2nd rank with Rh2), 28...Qf6 29.Rh2 Rd3! 30.Nd2 Rxd4!  Cool (31.Nxd4? Qxd4 is dire).
  
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Re: Advance 6.a3 and 9.Be3
Reply #12 - 03/11/09 at 10:22:11
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21. Qh4+!? looks much better after going down that route. My engine reckons the 25. Qc2 variation (leads to a possible rook endgame where Black has the active rooks on the f-file plus a passed a-pawn) looks more tougher to break down than then 25. Rc3 where here, White is about to give the material back due to the powerful c6 bishop...
  
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Re: Advance 6.a3 and 9.Be3
Reply #11 - 03/10/09 at 23:48:12
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oddjob290 wrote on 03/10/09 at 17:42:13:
Just been goin thro the 20... Qe7 move as you pointed out (not sure why I didn't enough time for this in my original analysis) but it doesn't look good either :-

20... Qe7 21. Nc4 a6  (21... Qf6 22. Ne5 Qf2+ 23. Kd1 Qxg2 24. Re1 Rf1 25. Qc4 Rxe1+ 26. Kxe1 Rc8 27. Qf1 - looks a deffo draw after this move) and the plan(s) that my engine comes up with in the long run involves the knight perching on the e3 square which is difficult to shift if Black wants to win  Angry - what do you think?

I suggest a slightly different approach for Black here: 20...Qe7 21.Nc4 Qh4+!? 22.g3 Qh6 (eyeing e3 and c1 - you'll see why h6 is a better square than g5 for the queen in a mo...) 23.Ne2 (23.Qc2? Rac8! is very awkward for White, but if Black's queen was on g5, White would now have 24.Qd2!) 23...a6 24.Qb3 (24.Qc2 Bxb5 25.Qd2 Qf6 with good play, e.g. 26.Qe3? Qf3! 27.Qxf3 exf3 28.Nf4 Rac8 –+) 24...Rf3! (a useful bonus of provoking g3) 25.Rc3 (25.Qc2 Bxb5 26.Qxe4 Raf8 with a promising position) 25...axb5! 26.Na3/Nb2 Bc6 with active play.
  
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Re: Advance 6.a3 and 9.Be3
Reply #10 - 03/10/09 at 17:42:13
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Paul Cumbers wrote on 03/10/09 at 14:37:02:
oddjob290 wrote on 03/09/09 at 11:44:51:
On analysis at this myself with assistance with an engine, I'd look at 20... a5 a bit further. This is what I get :-

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Nc6 6. a3 Nh6 7. b4 cxd4 8. cxd4 Nf5 9. Be3 f6 10. Bd3 Nxe3 11. fxe3 fxe5 12. b5 Nxd4 13. exd4 e4 14. Bxe4 dxe4 15. Ne5 Bd7 16. Nc3 Qa5 17. Rc1 Bxa3 18. Nc4 Qb4 19. Nxa3 O-O 20. Qa4 a5 21. Nc4 Rfc8 22. Qxb4 axb4 23. Nxe4 Bxb5 24. Ned6 Rxc4 25. Nxc4 Bxc4 26. Rxc4 *

What do you think?

26… Ra1+ 27.Kf2 Rxh1 28.Rxb4 Rxh2 29.Rxb7 draw? I suspect 20…Qe7 gives more scope for Black to play for a win because it avoids these exchanges…


You maybe correct about 29. Rxb7 draw although I like White to demonstrate how to. I'm surprised this R endgame position isn't featured in the Nalimov endgames databases to check if it is indeed a draw - maybe others can help us here.

Just been goin thro the 20... Qe7 move as you pointed out (not sure why I didn't enough time for this in my original analysis) but it doesn't look good either :-

20... Qe7 21. Nc4 a6  (21... Qf6 22. Ne5 Qf2+ 23. Kd1 Qxg2 24. Re1 Rf1 25. Qc4 Rxe1+ 26. Kxe1 Rc8 27. Qf1 - looks a deffo draw after this move) and the plan(s) that my engine comes up with in the long run involves the knight perching on the e3 square which is difficult to shift if Black wants to win  Angry - what do you think?
  
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Re: Advance 6.a3 and 9.Be3
Reply #9 - 03/10/09 at 14:37:02
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Thanks for the responses!

Bibs wrote on 03/09/09 at 10:43:29:
As Dom, I suggest 9...g6 is worth a  punt. Can hardly remember, but had that prepped for 2004 Olympiad. Made sense at the time on the dbase, but this is a long time past.
Didn't want the draw line and despite Watson indicating black has half a hope by avoiding the repetition with a q-move away, a quick play through on the PC indicated otherwise (to me anyhow).

I admit that 9…g6 (or 9…Bd7/Be7) is a lot safer, but 6…f6 looks more exciting! Have another look at Black's attempt to avoid the draw – Watson quotes my old analysis in PTF3, but we missed the possibility of 17…Qc3!. It might be more risky than I initially suggested (e.g. after 18.Nd3 Bd6, both kings could end up in the centre following 19.Qh5+!? g6 20.Qh6 Qf6; or White could try and improve with 17.Rb3!? Qa5 18.Nxe5 g6), but I think it’s playable. At any rate, White can hardly be happy with such unbalanced positions as he must have been expecting a quick draw! Further options worth investigating are 15…Be7!?/Bc5!? (instead of 15…fxe5).

oddjob290 wrote on 03/09/09 at 11:44:51:
Oops sorry, (should have adopted the exam question approach of reading the question fully, doh!).

No worries! Smiley

oddjob290 wrote on 03/09/09 at 11:44:51:
On analysis at this myself with assistance with an engine, I'd look at 20... a5 a bit further. This is what I get :-

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Nc6 6. a3 Nh6 7. b4 cxd4 8. cxd4 Nf5 9. Be3 f6 10. Bd3 Nxe3 11. fxe3 fxe5 12. b5 Nxd4 13. exd4 e4 14. Bxe4 dxe4 15. Ne5 Bd7 16. Nc3 Qa5 17. Rc1 Bxa3 18. Nc4 Qb4 19. Nxa3 O-O 20. Qa4 a5 21. Nc4 Rfc8 22. Qxb4 axb4 23. Nxe4 Bxb5 24. Ned6 Rxc4 25. Nxc4 Bxc4 26. Rxc4 *

What do you think?

26… Ra1+ 27.Kf2 Rxh1 28.Rxb4 Rxh2 29.Rxb7 draw? I suspect 20…Qe7 gives more scope for Black to play for a win because it avoids these exchanges…

MNb wrote on 03/09/09 at 16:13:50:
20...a5 is the safe option; 21.Nab1 Qxa4 22.Nxa4 Bxb5 23.Nc5 Bc6 and Black has quite a few passed pawns.
20...Qe7 is risky, but seems OK to me. White's pieces do not cooperate, f2 is a notorious weakness and White's King will be even unsafe if (s)he manages to exchange rooks with Rh1-f1. Black's biggest problem is to involve Bd7 in the attack as ...e5 is surprisingly hard to press through. Depending on White's 21st move Black should either play 21...a6 to open yet another file for his rooks or double on the f-file. A definite evaluation will take hours of thorough analysis, I'm afraid.

20…a5 21.Nab1 puts the knight on a passive square – after 21…Rac8! 22.Qxb4 axb4 23.Ne2 (23.Na2 meets the same response) 23…e3 it can't move! White is tangled up, and the computer thinks Black is already better here. The line given by oddjob290 looks more sensible, but White seems to be on the worse side of a draw…

If Black is playing for a win, maybe 20…Qe7 is a good practical bet – White will have long term problems with his king, making it harder for him to play this position.
  
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Re: Advance 6.a3 and 9.Be3
Reply #8 - 03/09/09 at 16:13:50
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Paul Cumbers wrote on 03/09/09 at 00:53:40:
Quote:
After 1. e4 e6 2.d4 d5 3.e5 c5 4.c3 Qb6 5.Nf3 Nc6 6.a3 Nh6 7.b4 cxd4 8.cxd4 Nf5 9.Be3 f6 10.Bd3 Nxe3 11.fxe3 fxe5 12.b5 Nxd4 13.exd4 e4 I feel that chances are balanced and complicated.  Black faces an attack in the hopes of winning all of whites pieces.


(b) However, things aren't so clear in the other line! After 9.Be3 f6 10.Bd3 Nxe3 11.fxe3 fxe5 12.b5 Nxd4 13.exd4 e4 14.Bxe4 dxe4 15.Ne5 and instead of 15...g6 I think he should fall back on the alternative 15...Bd7! (given in Watson's PTF3). Let's look at three of White's continuations:

(i) 16.Qh5+ g6 17.Nxg6 hxg6 18.Qxh8 0-0-0 "with excellent play" (Watson), as happened in Karttunen v Tella (Finland, 2006) and Richter v Offinger (Germany, 2006).
(ii) 16.0-0 0-0-0! =+ when Uribe v Orsini (Buenos Aires, 2005) continued 17.Nf7?! Bxb5 18.Nxd8 Bxf1 19.Nf7 Bd3! with advantage to Black.
(iii) 16.Nc3! is critical. Now 16...0-0-0?! 17.Nf7! really does win the exchange, so Straka v Kolar (Czechia, 2004) went 16...Qa5 17.Rc1 Bxa3 18.Nc4 Qb4 19.Nxa3 Rc8. At this point, 20.0-0! would have given White a strong initiative. He has at least a draw with 20...Rxc3 21.Qh5+ g6 22.Qe5 Rf8 23.Rxf8+ Kxf8 24.Qh8+ Ke7 25.Rf1 Rc8 26.Qf6+ Kd6 27.Qf4+ Ke7 28.Qf6+ etc., if not more. So I suggest 19...0-0! (instead of 19...Rc8), turning this into a piece sacrifice! After 20.Qa4 Qe7 (20...a5!? is also interesting), Black switches his queen over to the kingside. The opponent's king is caught in the centre. Does Black have enough play? I spent some time analysing this position, but couldn't come to a clear assessment! It's complicated...

Any thoughts?


20...a5 is the safe option; 21.Nab1 Qxa4 22.Nxa4 Bxb5 23.Nc5 Bc6 and Black has quite a few passed pawns.
20...Qe7 is risky, but seems OK to me. White's pieces do not cooperate, f2 is a notorious weakness and White's King will be even unsafe if (s)he manages to exchange rooks with Rh1-f1. Black's biggest problem is to involve Bd7 in the attack as ...e5 is surprisingly hard to press through. Depending on White's 21st move Black should either play 21...a6 to open yet another file for his rooks or double on the f-file. A definite evaluation will take hours of thorough analysis, I'm afraid.
  

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Re: Advance 6.a3 and 9.Be3
Reply #7 - 03/09/09 at 11:44:51
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Paul Cumbers wrote on 03/09/09 at 10:56:08:
oddjob290 wrote on 03/09/09 at 09:52:46:
Apologies for butting in, is there a problem with 15... Bd7 intending to castle queenside possibly instead of 15... g6?


I examine 15…Bd7 further down in my post – keep reading! [The idea for Black is a piece sac with 15…Bd7 16.Nc3 Qa5 17.Rc1 Bxa3 18.Nc4 Qb4 19.Nxa3 0-0!? 20.Qa4 Qe7 (or 20…a5)]


Oops sorry, (should have adopted the exam question approach of reading the question fully, doh!). On analysis at this myself with assistance with an engine, I'd look at 20... a5 a bit further. This is what I get :-

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Nc6 6. a3 Nh6 7. b4 cxd4 8. cxd4 Nf5 9. Be3 f6 10. Bd3 Nxe3 11. fxe3 fxe5 12. b5 Nxd4 13. exd4 e4 14. Bxe4 dxe4 15. Ne5 Bd7 16. Nc3 Qa5 17. Rc1 Bxa3 18. Nc4 Qb4 19. Nxa3 O-O 20. Qa4 a5 21. Nc4 Rfc8 22. Qxb4 axb4 23. Nxe4 Bxb5 24. Ned6 Rxc4 25. Nxc4 Bxc4 26. Rxc4 *

What do you think?
  
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Re: Advance 6.a3 and 9.Be3
Reply #6 - 03/09/09 at 10:56:08
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oddjob290 wrote on 03/09/09 at 09:52:46:
Apologies for butting in, is there a problem with 15... Bd7 intending to castle queenside possibly instead of 15... g6?


I examine 15…Bd7 further down in my post – keep reading! [The idea for Black is a piece sac with 15…Bd7 16.Nc3 Qa5 17.Rc1 Bxa3 18.Nc4 Qb4 19.Nxa3 0-0!? 20.Qa4 Qe7 (or 20…a5)]
  
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Re: Advance 6.a3 and 9.Be3
Reply #5 - 03/09/09 at 10:43:29
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As Dom, I suggest 9...g6 is worth a  punt. Can hardly remember, but had that prepped for 2004 Olympiad. Made sense at the time on the dbase, but this is a long time past.
Didn't want the draw line and despite Watson indicating black has half a hope by avoiding the repetition with a q-move away, a quick play through on the PC indicated otherwise (to me anyhow).
  
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Re: Advance 6.a3 and 9.Be3
Reply #4 - 03/09/09 at 09:52:46
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Quote:
(b) However, things aren't so clear in the other line! After 9.Be3 f6 10.Bd3 Nxe3 11.fxe3 fxe5 12.b5 Nxd4 13.exd4 e4 14.Bxe4 dxe4 15.Ne5 g6 16.0-0 Bg7 17.Kh1 Bxe5 18.dxe5 Qxb5, White has improved on 19.Nc3 (see Watson's PTF3) with 19.Nd2!. The knight is eyeing c4 (and d6) as well as e4.


Apologies for butting in, is there a problem with 15... Bd7 intending to castle queenside possibly instead of 15... g6?
  
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Re: Advance 6.a3 and 9.Be3
Reply #3 - 03/09/09 at 02:03:32
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This is great stuff guys. I shall have to download it and look carefully at it as I often play the line mentioned. Also I sometimes play the French as black, with the early Nc6 lines against the Tarrasch or classical.
  

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Re: Advance 6.a3 and 9.Be3
Reply #2 - 03/09/09 at 00:53:40
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After 1. e4 e6 2.d4 d5 3.e5 c5 4.c3 Qb6 5.Nf3 Nc6 6.a3 Nh6 7.b4 cxd4 8.cxd4 Nf5 9.Be3 f6 10.Bd3 Nxe3 11.fxe3 fxe5 12.b5 Nxd4 13.exd4 e4 I feel that chances are balanced and complicated.  Black faces an attack in the hopes of winning all of whites pieces.

My problem is that after 9...f6 10.b5 leads either to a draw or a better white position.  the variation goes like this: 9.Be3 f6 10.b5 Nxe5! 11.dxe5 Nxe3 12.fxe3 Qxe3+ 13.Qe2 Qc1+ 14.Qd1 Qe3+ draw.

any comments on 10.b5 or proposed alternatives to blacks 9...f6 would be greatly appreciated.  

thanks,
Nolan

(a) I think Black can successfully avoid the draw in the 10.b5 line: 9.Be3 f6 10.b5 Nxe5 11.dxe5 Nxe3 12.fxe3 Qxe3+ 13.Qe2 Qc1+ 14.Qd1, and now 14...Qb2! 15.Nbd2 fxe5 16.Rb1 Qxa3 17.Nxe5 Qc3! taking control of e5 (I had previously only considered 17...Qe3+ 18.Qe2, when White keeps a grip on e5), e.g. 18.Nd3 Bd6 preparing ...e5. With a strong centre and three pawns for the piece, Black has a good game.

(b) However, things aren't so clear in the other line! After 9.Be3 f6 10.Bd3 Nxe3 11.fxe3 fxe5 12.b5 Nxd4 13.exd4 e4 14.Bxe4 dxe4 15.Ne5 g6 16.0-0 Bg7 17.Kh1 Bxe5 18.dxe5 Qxb5, White has improved on 19.Nc3 (see Watson's PTF3) with 19.Nd2!. The knight is eyeing c4 (and d6) as well as e4. Look what happened in these two games:

Malvasio v Valli (email, 1999)
1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.a3 Nh6 7.b4 cxd4 8.cxd4 Nf5 9.Be3 f6 10.Bd3 Nxe3 11.fxe3 fxe5 12.b5 Nxd4 13.exd4 e4 14.Bxe4 dxe4 15.Ne5 g6 16.0-0 Bg7 17.Kh1 Bxe5 18.dxe5 Qxb5 19.Nd2 Qd3 20.Qc1 Rf8 21.Rd1 Qe3 22.Re1 Qf4 23.Nxe4 Qxc1 24.Raxc1 Bd7 25.Nf6+ Rxf6 26.exf6 Bc6 27.Rxe6+ Kf7 28.Re7+ Kxf6 29.Rxh7 Rd8 30.Rf1+ Kg5 31.Kg1 Rd2 32.h4+ Kg4 33.Rf2 Rd3 34.h5 Kg5 35.hxg6 Kxg6 36.Rh3 1-0

Liedtke v De la Cruz (Germany, 2004)
1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.a3 Nh6 7.b4 cxd4 8.cxd4 Nf5 9.Be3 f6 10.Bd3 Nxe3 11.fxe3 fxe5 12.b5 Nxd4 13.exd4 e4 14.Bxe4 dxe4 15.Ne5 g6 16.0-0 Bg7 17.Kh1 Bxe5 18.dxe5 Qxb5 19.Nd2 Qxe5 20.Nc4 Qd5 21.Qc2 Rf8 22.Rfd1 Qc6 23.Nd6+ Kd8 24.Qb2 Bd7 25.Rac1 Qa6 26.Qg7 Rf2 27.Nxe4 1-0

I don't see how Black can survive here, so instead of 15...g6 I think he should fall back on the alternative 15...Bd7! (given in Watson's PTF3). Let's look at three of White's continuations:

(i) 16.Qh5+ g6 17.Nxg6 hxg6 18.Qxh8 0-0-0 "with excellent play" (Watson), as happened in Karttunen v Tella (Finland, 2006) and Richter v Offinger (Germany, 2006).
(ii) 16.0-0 0-0-0! =+ when Uribe v Orsini (Buenos Aires, 2005) continued 17.Nf7?! Bxb5 18.Nxd8 Bxf1 19.Nf7 Bd3! with advantage to Black.
(iii) 16.Nc3! is critical. Now 16...0-0-0?! 17.Nf7! really does win the exchange, so Straka v Kolar (Czechia, 2004) went 16...Qa5 17.Rc1 Bxa3 18.Nc4 Qb4 19.Nxa3 Rc8. At this point, 20.0-0! would have given White a strong initiative. He has at least a draw with 20...Rxc3 21.Qh5+ g6 22.Qe5 Rf8 23.Rxf8+ Kxf8 24.Qh8+ Ke7 25.Rf1 Rc8 26.Qf6+ Kd6 27.Qf4+ Ke7 28.Qf6+ etc., if not more. So I suggest 19...0-0! (instead of 19...Rc8), turning this into a piece sacrifice! After 20.Qa4 Qe7 (20...a5!? is also interesting), Black switches his queen over to the kingside. The opponent's king is caught in the centre. Does Black have enough play? I spent some time analysing this position, but couldn't come to a clear assessment! It's complicated...

Any thoughts?
  
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Re: Advance 6.a3 and 9.Be3
Reply #1 - 04/11/03 at 06:31:28
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I agree with you about all your lines, and my feeling is Black must reply g6 or Be7, to Bd3 move and Bd7/Rc8 on Be2, Cc3 or Nbd2.

I suggest: 9..g6!? or 9...Bd7.

I will not comment much more on g6 which leads to a good and active system (Bg7 or Bh6), with f6 done after short castling.

For Bd7/Be7 system, here are some lines:
8. cxd4 Bd7!? (or 8...Nf5 9.Bd3 Bd7) 9.Be3  (9.Bxh6 see Nikitin-Flohr,Moscou 1957 ; 9.Be2 Nf5 10.Be3 Rc8 11.oo Be7 12.Nbd2 oo 13.Nb3 f6) Nf5 10.Bd3 (10.Be2 Rc8 ; 10.Dd2 Nxb4 ; 10.Nc3 Rc8 and to follow, as example 11.Na4 Qd8 12.Nc5 Nxe3 13.fxe3 Bxc5 14.bxc5 oo 15.Bd3 f5 16.exf6 Qxf6 17.oo Qh6 18.Qd2 Be8; 10.b5 Na5 11.Nc3 Nxe3 12.fxe3 Rc8 13.Na4 Qd8 ) Nxe3 11.fxe3 Be7 12.oo (12.Nc3 Nxb4! Leblanc-Jablowsky,1997) oo 13.Nbd2 (13.Nc3 Nxb4) Nb8!? Torre-Chernin,NewDehli 1991 as given in MCO and Kosten's book about the Advance.

One main idea is to forbid Nc3-Na4 in some lines, since it's the main threat on the wing. A rook on c8 is then useful and  the rook can be used to support a knight on c4 when White plays quick b5.

To play a quick f6, my advice is Greco-Euwe systeme with Bd7 (the queen stays on the d8 square).
  

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C02: Advance 6.a3 and 9.Be3
04/09/03 at 20:21:45
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After 1. e4 e6 2.d4 d5 3.e5 c5 4.c3 Qb6 5.Nf3 Nc6
6.a3 Nh6 7.b4 cxd4 8.cxd4 Nf5 9.Be3

I was wondering what you all thought might be a promising line for black but also for white.  I play this variation as white and also defend it as black.  Ill give some quick variations for everyone to look at further.

9. Be3 f6
This is the move I most want to play, immediately striking e5.  
The most logical to me seems to be Bd3, forcing the trade of knight for bishop, strengthening d4 for white and gaining 2 bishops for black.  

After 10.Bd3 Nxe3 11.fxe3 fxe5 12.b5 Nxd4 13.fxd4 e4
I feel that chances are balanced and complicated.  Black faces an attack in the hopes of winning all of whites pieces.  this line goes unmentioned by watson and lane.

Watson gives  11.fxe3 f5!? 12.Nc3 leading to Ne2-f4 which i think is rather dull.
Also black can reach a similar if not identical position with an extra tempo by playing f5 either on move 9 or after playing Be7.  

I like the complicated positions resulting after
10.Bd3 Nxe3 11.fxe3 fxe5
My problem is that after 9...f6 10.b5 leads either to a draw or a better white position.  

the variation goes like this:
9.Be3 f6 10.b5 Nxe5! 11.dxe5 Nxe3 12.fxe3 Qxe3 13.Qe2 Qc1 14.Qd1 Qe3 draw.

of course white can avoid drawing by playing Be2 but then i think that blacks sac is justified by gaining another pawn.

10.b5 Nxe5! is given by watson as a sufficient answer to whites b5 but i dont want a theoretical draw on move 14.  any other answers to this move.  maybe Na5 with the idea of a quick Bd7, Rc8, Nc4 as well as pressure on the e5 pawn.  

any comments on 10. b5 or proposed alternatives to blacks 9...f6 would be greatly appreciated.  

thanks,
Nolan
« Last Edit: 07/25/11 at 17:12:15 by dom »  
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