Latest Updates:
Page Index Toggle Pages: 1 2 [3] 4 5 ... 7
Topic Tools
Very Hot Topic (More than 25 Replies) Alekhine 4 Pawns 6...Nc6, 9...Qd7. (Read 87521 times)
Kam
Junior Member
**
Offline


I Love ChessPublishing!

Posts: 83
Location: Hobart, Tasmania
Joined: 10/14/08
Gender: Male
Re: Alekhine 4 Pawns 6...Nc6, 9...Qd7.
Reply #63 - 06/01/09 at 13:26:33
Post Tools
ALEKINES DEFENCE, FOUR PAWNS ATTACK WITH 9.....Qd7  10. Be2 O-O-O  
11. O-O Bg4  12. Ng5... and 17. .... Nf5!  AN IMPROVEMENT FOR BLACK AND A
CLEVER EXCHANGE SACRIFICE.


1. e4 Nf6  2. e5 Nd5  3. d4 d6  4. c4 Nb6  
5. f5 dxe5  6. fxe5 Nc6  7. Be3 Bf5  8. Nc3 e6  9. Nf3 Qd7  10. Be2 O-O-O  11. O-O  Bg4  



11…. Kb8 has also been discussed in the forum by Ig, Markovich and Bueker, but I think the text is more aggressive and dynamic.
12. Ng5  (12.c5 is considered the main move and a possible continuation is 12…. Nd5 13. Nxd5 Qxd5  14. b4 Qe4 etc.) Bxe2  13. Qxe2 f6  14. exf6 gxf6  15. Rxf6 (15. Nf3 and 15. Nxe6 can also be considered) Nxd4  16. Qf2 Be7  17. Rf7 Nf5!



This move provides important dynamic opportunities. 18. Bc5  (White could try  
18. Bxb6 axb6  19. Nxe6 Bxc5  20. Qxc5 bxc5  21. Rxd7 Rxd7  22. Nd5 b6 Slight Ŧ)





Black had previously followed 17…. Nc6
18. Bc5 Bxc5  19. Qxc5 Qd4+ (Proposed by Bueker and it is better than the more aggressive, but losing 19…. Qd2, which was investigated by Watson)  A possible continuation is  20.Qxd4 Nxd4  21.Nb5 e5  22.Rxc7+ Kb8  23. Nxd4 exd4  24.Rc5 Na4  25.Rb5 Rhe8  26. Rd1 d3 27. Rd2 Re2  28. Rxe2 dxe2  29. Kf2 Re8 30. Ke1 a6  31.Rb3  Black is a pawn down and it will be difficult to save the game. There may be some improvements for black.



18. ... h6  19. Bxe7 hxg5  20. Qc5 g4!  




The participation of this solo pawn attack has changed whites assessment of the black king side offensive from “okay to ignore” to a highly serious threat. The white queen now has restricted attacking versitility, because the safe guarding of the f2 square and preventing the transition Qd4 + is essential. White's intentions of using the queen to probe black's queen side pawn structure and cause weaknesses, or to launch an ambitious queen side pawn storm are now a distant passing thought.

21. Rd1 Four other alternatives are worthy of considering.

a) 21. b3 (perhaps best) g3  22. h3 Kb8   23. Bxd8 Qxf7  24. Rd1 Nd5 25. cxd5 Rxd8  26. dxe6 Rxd1+  27. Nxd1 Qxe6   28. Rf8+ Qc8  29. Qxc8 Kxc8 30. Nc3 Kd7  31. Kf1 a5  32. Ke2 Nh4  33. Ne4 Nxg2  34. Kf3 Nf4  35. Kxg3 Nd3 I think that black should be able to draw.)




b) 21. Rf1! g3  22.h3 Kb8!  23.Bxd8 Qxf7  24.Rd1 Nd6! (An extremely difficult move to find! The knight move threatens the capture of the c pawn, blocks the d file and thus threatens the capture of the bishop on the back rank, and also opens the threat of Rh5. What more would you want to expect from a knight?!)  25.Bxc7+ Qxc7  26.Qxd6 Nxc4 27. Qxc7+ Kxc7  28.Re1 Rh6  29.Ne2 Nxb2
30. Rc1+ Kb8  30.Nxg3 Rh4 =



c) 21. Ne4 Kb8  22.Nf6 Qd4+  23.Qxd4 Rxd4
24.b3 Nd7  25. Nxd7+ Rxd7  26.Bf6 Rxd7
27. Bxh8 Kc8  28.Re1 Kd7  29.Be5 Nd6
30. Re3 Rf5  31. h3 gxh3  32.gxh3 Nf7=




d) 21. g3? Qd2  22. Bh4 Nd7  23.Qxa7 Nb6!
24.c5 Qe3+  25.Kf1 Rd2  26. Rxc7+ Kxc7
27. cxb6+ Kc6  28. Qa4+ Kxb6  29. Qb3+ Kc6
30.Qc4+ Kd7 31. Ne4  (31. Qa4+ Kc7  32.Nb5+ Kb8 -+) Rf8 32. Bf6 Nd6 -+
The black king had to escape from the
harassing checks, but was able to succeed and win.



21. ... Qxd1! Black forces the exchange sacrifice. 22. Nxd1 Rxd1  23. Kf2 Rd7





24. Rf8+   ( 24. Rxf5 exf5  25. Qxf5 Nxc4 26. b3 Nb6  27. Qxg4 Kb8  28. Bc5 Rxh2  29. Qg8+ Nc8  30. Kf3 a5  31. a3 Rh5 Black is okay.)




24. ... Rxf8  25. Bxf8 g3+!


This intermezzo pawn check is essential, because white is now forced to endure doubled kingside pawns. Black could try to hang on to this pawn, but my analysis shows that this alternative plan is futile.  eg.   25. ... Rf7  26. Qa3 Nd6+ 27. Ke2 Ndxc4   28. Qc5 Nxb2   29. Bg7 N2c4   30. Qh5 Nd6  31. Qxg4 Black is in trouble, due to the presence of the connected, passed kingside pawn roller and additional bishop.



26. hxg3 Rf7  27. Ke1 Nd7  28. Qxa7 Rxf8  29. g4 Nh4   30. Qa8+ Nb8 31. Ke2 Nxg2  32. Qa5 c6  33. Qg5 Nd7 Ŧ   White is in trouble.




Black’s strategy is  1) Utilize the rook for its long range capabilities and thus a) Supporting of the centralized knights or isolated e pawn, b) keeping watch of whites passed g pawn and c) restricting of the movements of the king.  2) Centralizing of the knights in order to assist in the promotion of the central isolated pawn,  3) Calculated pushing of the pawn and 4) minimizing of possible checks from the white queen.

34. Qg7 e5  35. g5 Nf4+  36. Ke3 Ne6 37. Qg6 Nd4  38. Qh7 Nf5+  39. Kd2 e4
40. g6 e3+  41. Ke2 Re8  42. Qf7 Nd4+
43. Ke1 Rd8  44. g7 Ne5  45. g8(Q) Nef3+
46. Kf1 e2+



47. Kg2 Rxg8+  48. Qxg8+ Kc7 49. Qg7+ Kb6  50.c5+ Ka5 -+ The promotion of the e pawn cannot be prevented.


  
Back to top
IP Logged
 
lg
God Member
*****
Offline


I love ChessPublishing.com!

Posts: 601
Location: Lisbon
Joined: 04/18/05
Gender: Male
Re: Alekhine 4 Pawns 6...Nc6, 9...Qd7.
Reply #62 - 04/22/09 at 12:53:15
Post Tools
Markovich

Many thanks for your comments. I think you mean Qg4 instead of Qg5, right?.
This has been my pet line for a long time and I also have lots of analysis with Qc2 instead of Qg4. Black equalizes quite easily.
The reason for examining Qc2, as an alternative to Qg4, is that Qg4 allows h5 followed by h4 and one sees at once that White's king starts to be unsafe. However, Black is also Ok after Qc2.

I still wonder why Miles thought that 12. ....Bb4 (after 12. a5) was critical.

By the way, the last sequence of messages between Stefan and myself
have considered 12. a4 a5 13. Qb3 (his idea, and instead of 13. d5 which forces a sequence of moves) which also looks interesting and might need more analysis.
  
Back to top
 
IP Logged
 
Markovich
God Member
*****
Offline



Posts: 6099
Location: Columbus, Ohio
Joined: 09/17/04
Re: Alekhine 4 Pawns 6...Nc6, 9...Qd7.
Reply #61 - 04/22/09 at 12:10:26
Post Tools
I've been checking the analysis of lg and Stefan here, and I'm starting to think that 11...Kg8 12.a4 a5 may be all right for Black.  I have little to contribute, but I did look at Qc2 instead of Qg4 (on move 22) and concluded that Black is all right there.  As observed by others, one thing you notice in these lines is the contrast in king safety.  
« Last Edit: 04/22/09 at 13:15:46 by Markovich »  

The Great Oz has spoken!
Back to top
 
IP Logged
 
lg
God Member
*****
Offline


I love ChessPublishing.com!

Posts: 601
Location: Lisbon
Joined: 04/18/05
Gender: Male
Re: Alekhine 4 Pawns 6...Nc6, 9...Qd7.
Reply #60 - 04/03/09 at 23:21:53
Post Tools
Stefan

Thanks for your comments. Sorry for the late responde but I have been traveling. I am including an old answer to one of your posts,
on

"Many thanks for these details and for the nice NICMagazine source. I didn't check Bb4 further, but 12.a4 a5 looks fine. In any case Black replies 22...Bxf7, and in the resulting position with bishops on squares of opposite colours Black's king is often safe on a7, while the Bc5 is a strong piece. White even has to be cautious... After both 22.Qc2 Bxf7 23.Rxf7 Rd4 and 22.Qg4 Bxf7 23.Rxh7 h5 24.Qe2 h4 25.h3 (your line) 25...Rd4 26. e6 Re4 27.Qd3 Re3 28.Qd5 Qxd5 29.Bxd5 Rd8 30.Bf3 Rxe6 31.Rxb7+ Kc8 32.Rxg7 Re7 =, Black has nothing to fear.2

What I have to say does not change the assessment that Black is Ok,
but for completeness here are a few things:
i) After 22.Qg4 Bxf7 23.Rxh7 h5 24.Qe2 h4 25.h3 Rd4 White may also try 26. Re1 (to prevent Re4) Bb4 27. Bb5 Qd5 28. Rd7 Qxd7! 29. Bxd7 Bxe1 30. Qxe1 (30. e6? Bg3 31. e7? Rxd7 32. e8Q+ Rxe8 33. Qxe8 Kc7 34. Qe2 Rd5! -+ illustrating what you said that White should be even cautious) Rxd7 = Black has two rooks for the Queen
and the e5 pawn will fall.
ii) After 22. Qg4 I agree that 22. .... Bxf7 is the safer line But I also
had some fun lines with 22. ... h5 ?! which by the way, I am not sure gives equality to Black. But it also illustrates that newss some caution.
After 22. ... h5 we  have 23. Nxd8 hxg4 24. Nxc6+ Bxc6 (Black is
an exchange down) 25. Rf4 ?! g3 26 h4 g5 27. Rg4 gxh4 28. Bb5 Bd5 = since I dint see what White can do to win and it is completely tied down. However, I think that 25 Be6 g3 26. h3 Bd4 27. Rad1 might be better and here I am not seeing how Black can equalize.

I hope to get back to you with your new analysis.
  
Back to top
 
IP Logged
 
Stefan Buecker
God Member
*****
Offline



Posts: 1386
Location: Germany
Joined: 02/11/09
Gender: Male
Re: Alekhine 4 Pawns 6...Nc6, 9...Qd7.
Reply #59 - 03/31/09 at 21:55:15
Post Tools
Hello lg,
Your analysis looks convincing. 14...Qe7 is logical, preventing Nh4. If 15.Ne1, which you mention as an alternative, Black might try 15...f6 16.exf6 gxf6 17.c5 Nc8 18.Bf3 Qe8 19.Nb5 Qg6 20.Nd3 Bxd3 21.Rxd3 Ne5 22.Rdd1 Nxf3+ 23.Rxf3 e5 24.d5 Rhg8 =.
  
Back to top
 
IP Logged
 
lg
God Member
*****
Offline


I love ChessPublishing.com!

Posts: 601
Location: Lisbon
Joined: 04/18/05
Gender: Male
Re: Alekhine 4 Pawns 6...Nc6, 9...Qd7.
Reply #58 - 03/30/09 at 16:38:39
Post Tools
Stefan,

After 11...Kb8 12.a4 a5 13.Qb3 Bb4! 14.Rad1

perhaps 14....Qe7 15. c5 (Ne1 intending Nc2/d3 targeting the bishop
might be interesting) Nd5 16. Nxd5 Rxd5 17 Bb5 (Bc4 at once !?) Na7
(maybe 17... Ka7, intending Rb8 if White plays 18. Bxc6 bxc6) 18. Bc4
(18. Bd2 (or 18. Bg5 f6 19. Bd2) Bxd2 19. Rxd2 Nxb5 20 axb5 b6)
Rdd8 19. Ng5 Bg6 20. Be2 (20. Bd3 Bh5 21. Nf3 f6) might be playable
for Black.
  
Back to top
 
IP Logged
 
Stefan Buecker
God Member
*****
Offline



Posts: 1386
Location: Germany
Joined: 02/11/09
Gender: Male
Re: Alekhine 4 Pawns 6...Nc6, 9...Qd7.
Reply #57 - 03/28/09 at 17:47:58
Post Tools
lg wrote on 03/28/09 at 15:47:02:
12...Bb4 13.Qb3 f6 14.Rfd1 Black can play 14.... a5. Even, after
14....Ba5 and for the same of continuing ot exchange, I still see Black in the game. For instance,
12...Bb4 13.Qb3 f6 14.Rfd1 Ba5 15 exf6 gxf6 16. Nh4 Bg6 17. Bf3
Qe8 18 Nxg6 hxg6 19 Ne4 e5 ! 20 d5 (Nxf6 Qe7 may transpose) Nd4
21 Bxd4 exd4 22 Nxf6 Qe5 23 Ng4 Qd6 and Black has some chances
on the kingside, no?

Going back to another line proposed, earlier on, by yourself,
12. a4 a5 13. Qb3, it appears that Black can play 13....Nb4 at once
and White has no time to play Rad1 and Rd2. 13...Bb4 14. Rfd1 f6
transposes to aline mentioned above, but with this move order, 14. Rad1 may be better.

Many thanks for the valuable hints. Would you agree that this is the main line after 11...Kb8:

12.a4 a5

Or 12....Bb4 13.Qb3 a5! transposing. If 13...f6?! 14.Rfd1 Ba5 15 exf6 gxf6 16. Nh4 Bg6 17. Bf3 Qe8 18 Nxg6 hxg6, instead of 19.Ne4 the alternative 19.Bf2 looks dangerous.

13.Qb3 Bb4!

After 13...Nb4 14.Rac1 Black still has to find a plan against Rfd1 and a later d5. I can't say that I trust Black's position.

14.Rad1

Your move, more precise than 14.Rfd1 f6 15.Nb5 Qf7, about =.
How would you assess the position after 14.Rad1?
  
Back to top
 
IP Logged
 
lg
God Member
*****
Offline


I love ChessPublishing.com!

Posts: 601
Location: Lisbon
Joined: 04/18/05
Gender: Male
Re: Alekhine 4 Pawns 6...Nc6, 9...Qd7.
Reply #56 - 03/28/09 at 15:47:02
Post Tools
"I apologize for the confusion. What I meant was 12...Bb4 13.Qb3 Ba5 14.Rfd1 f6 15.exf6 gxf6 16.Nh4 Ne7 etc. The two forgotten moves (bold print) now left Bb4 apparently unprotected.
Against 13...f6 I intended 14.Rfd1, which after 14...Ba5 transposes to my (intended) line. If then 15.exf6 gxf6 16.Nh4 Bg6 17.Bf3, White's attack against Black's queenside seems to be hard to meet. "

Ok, thanks. However after

12...Bb4 13.Qb3 f6 14.Rfd1 Black can play 14.... a5. Even, after
14....Ba5 and for the same of continuing ot exchange, I still see Black in the game. For instance,
12...Bb4 13.Qb3 f6 14.Rfd1 Ba5 15 exf6 gxf6 16. Nh4 Bg6 17. Bf3
Qe8 18 Nxg6 hxg6 19 Ne4 e5 ! 20 d5 (Nxf6 Qe7 may transpose) Nd4
21 Bxd4 exd4 22 Nxf6 Qe5 23 Ng4 Qd6 and Black has some chances
on the kingside, no?

Going back to another line proposed, earlier on, by yourself,
12. a4 a5 13. Qb3, it appears that Black can play 13....Nb4 at once
and White has no time to play Rad1 and Rd2. 13...Bb4 14. Rfd1 f6
transposes to aline mentioned above, but with this move order, 14. Rad1 may be better.


  
Back to top
 
IP Logged
 
Stefan Buecker
God Member
*****
Offline



Posts: 1386
Location: Germany
Joined: 02/11/09
Gender: Male
Re: Alekhine 4 Pawns 6...Nc6, 9...Qd7.
Reply #55 - 03/28/09 at 12:54:53
Post Tools
lg wrote on 03/28/09 at 12:01:55:
ii) Against 12...Bb4, White can also consider 13.Qb3 f6 (Ba5 is recommended by John watson) 14.exf6 gxf6 15.Nh4. Here Stefan mentions  Ne7 and points out that (15...Bg6 16.Bf3) .
If think that 15....Bg6 is playable since after 16. Bf5 Be7 I dont see
what White has got.
After 15.... Bg6, a line I have is as follows 16. c5 Nd5 17. Nxd5 Qxd5
18. Qxd5 Rxd5 19. Nxg6 hxg6 (actually these two moves could be
played earlier) 20 Bf3 Rxd4! 21 Bxc6 (21. Bxd4 Nxd4 22. c6 Bc5
23. Kh1 Nf5 and Black is not worse and might even be better) Rd3
22. Rf4 a5 23. Bf2 bxc6 24 Rxf6 Rd2 and Black seems Ok

I apologize for the confusion. What I meant was 12...Bb4 13.Qb3 Ba5 14.Rfd1 f6 15.exf6 gxf6 16.Nh4 Ne7 etc. The two forgotten moves (bold print) now left Bb4 apparently unprotected.
Against 13...f6 I intended 14.Rfd1, which after 14...Ba5 transposes to my (intended) line. If then 15.exf6 gxf6 16.Nh4 Bg6 17.Bf3, White's attack against Black's queenside seems to be hard to meet.
  
Back to top
 
IP Logged
 
lg
God Member
*****
Offline


I love ChessPublishing.com!

Posts: 601
Location: Lisbon
Joined: 04/18/05
Gender: Male
Re: Alekhine 4 Pawns 6...Nc6, 9...Qd7.
Reply #54 - 03/28/09 at 12:01:55
Post Tools

A few comments on some of Stefan Buecker's suggestions
(after 1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4 dxe5 6.fxe5 Nc6 7.Be3 Bf5 8.Nc3 e6 9.Nf3 Qd7 10.Be2 0-0-0 11.0-0 Kb8!?):

i) 12.a4 a5. 13.d5 exd5 14.Bxb6 cxb6 15.cxd5 Bc5+ 16.Kh1 Nb4 17.Bb5 Qc8 18.Qd2 f6 (I had Rhf8 in my notes and tried to see why I
have selected Rhf8 instead of f6). I think that after 18... f6, 19 exf6
gxf6 20 Nh4 is worth looking for White. Although I am not sure White
wins, it seems to me he can get the pawn on f6 without much compensation for Black (I might be mistaken)

ii) Against 12...Bb4, White can also consider 13.Qb3 f6 (Ba5 is recommended by John watson) 14.exf6 gxf6 15.Nh4. Here Stefan mentions  Ne7 and points out that (15...Bg6 16.Bf3) .
If think that 15....Bg6 is playable since after 16. Bf5 Be7 I dont see
what White has got.
After 15.... Bg6, a line I have is as follows 16. c5 Nd5 17. Nxd5 Qxd5
18. Qxd5 Rxd5 19. Nxg6 hxg6 (actually these two moves could be
played earlier) 20 Bf3 Rxd4! 21 Bxc6 (21. Bxd4 Nxd4 22. c6 Bc5
23. Kh1 Nf5 and Black is not worse and might even be better) Rd3
22. Rf4 a5 23. Bf2 bxc6 24 Rxf6 Rd2 and Black seems Ok

Stefan also states that "If 11...Kb8 doesn't work, we still have 11...Bg4 12.Ng5 Bxe2! 13.Qxe2 f6, which leaves White fewer options than the lines discussed above. The position seems only slightly better for White."

I agree. Essentially, after many lines we get a game with equal
material. The only possible disadvanatge for Black is that, in contrast
to White, he gets sinle pawns on the h row and e or f row while White
gets two pawn on the h and g rows. One possible line is
14. exf6 gxf6 15. Rxf6 Nxd4 16. Qf2 Be7 17. Rf7 Nc6 18. Bc5 Bxc5 19. Qxc5 Qd4+ looks which better than Qd2 as suggested by John Watson.
  
Back to top
 
IP Logged
 
Stefan Buecker
God Member
*****
Offline



Posts: 1386
Location: Germany
Joined: 02/11/09
Gender: Male
Re: Alekhine 4 Pawns 6...Nc6, 9...Qd7.
Reply #53 - 03/28/09 at 03:28:30
Post Tools
lg wrote on 03/27/09 at 11:43:10:
Basically, what John Watson says on the line
11...Kb8 12. a5 Bb4 13 a5 (JW mentions 13. Qb3 Ba5 which appears to be Ok. I also think that 13. ...f6 is playable) Nxa5 (Bxa5!) 14 c5 ! Nbc4 is:
[...]
iii) 15. Bc1 Bxc3 16. bxc3 b6 17. Qa4! Qxa4 18. Rxa4 b5 19. Rb4 a6 20. Nh4 Bg6 21. Nxg6 fxg6 22. Rf7 Rhg8 23. Bg4 Rde8 and Black is tied down, but the follow-up is not evident.


(1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4 dxe5 6.fxe5 Nc6 7.Be3 Bf5 8.Nc3 e6 9.Nf3 Qd7 10.Be2 0-0-0 11.0-0) 11...Kb8!? 12.a4 Bb4 (a5) 13.a5 Nxa5 (Ba5) 14.c5 Nbc4 15.Bc1 Bxc3 16.bxc3 (iii) b6 17.Qa4 Qxa4 18.Rxa4 b5 19.Rb4 a6 20.Nh4

Instead of 20...Bg6, Black has alternatives. For example 20...Be4 21.Rxf7 Nc6 22.Rxc4 bxc4 23.Bxc4 Rhf8 24.Rxf8 Rxf8 25.Bxe6 a5 and the a-pawn seems strong enough to hold the balance.
But isn't 17.Ra4! b5 18.Rb4 better? White has attractive plans, e.g. 18...Ka8 19.Qe1 Rb8 20.Nh4 (20.Nd2 Ne3) Bg6 21.Nxg6 (21.Qf2 Be4!? 22.Qf4 f5 23.exf6 Bd5) 21...hxg6 (21...fxg6 22.Rf2 followed by Qf1) 22.Bf3+ c6 23.Bg5 and while White seems able to gradually strengthen his position, Black's immobile knights can't do much.

In line (ii), 16...b5, the flexible reply 17.Rf2 looks attractive.

Against 12...Bb4, White can also consider 13.Qb3 (plan: Rfd1, or Nh4) f6 14.exf6 gxf6 15.Nh4 Ne7 (15...Bg6 16.Bf3) 17.Nxf5 Nxf5 18.Bf2 followed by Bf3 and a strong attack.
But against 12...a5, there is 13.Qb3 f6 14.Rad1 Nb4 15.Rd2 +/-, while other ideas are not much worse (14.c5).

If 11...Kb8 doesn't work, we still have 11...Bg4 12.Ng5 Bxe2! 13.Qxe2 f6, which leaves White fewer options than the lines discussed above. The position seems only slightly better for White.
« Last Edit: 03/28/09 at 04:40:49 by Stefan Buecker »  
Back to top
 
IP Logged
 
Markovich
God Member
*****
Offline



Posts: 6099
Location: Columbus, Ohio
Joined: 09/17/04
Re: Alekhine 4 Pawns 6...Nc6, 9...Qd7.
Reply #52 - 03/27/09 at 12:02:20
Post Tools
Michael Ayton wrote on 03/27/09 at 01:31:29:
Re an early ...g6, who knows? You're assuredly not an idiot; but you might just be Dr Tarrasch redivivus ...


Yeah, that's pretty close to the truth, I guess, but minus a good deal of his chess skill.
  

The Great Oz has spoken!
Back to top
 
IP Logged
 
lg
God Member
*****
Offline


I love ChessPublishing.com!

Posts: 601
Location: Lisbon
Joined: 04/18/05
Gender: Male
Re: Alekhine 4 Pawns 6...Nc6, 9...Qd7.
Reply #51 - 03/27/09 at 11:43:10
Post Tools
Markovich

Basically, what John Watson says on the line
11...Kb8 12. a5 Bb4 13 a5 (JW mentions 13. Qb3 Ba5 which appears to be Ok. I also think that 13. ...f6 is playable) Nxa5 (Bxa5!) 14 c5 ! Nbc4 is:
i) 15. Bxc4 Nxc4 16. Bg5 Nxb2 17. Qb3 Nd3 is wild.
ii) 15. Bc1 Bxc3 16. bxc3 b5 17. Bg5 Rc8 18. Nd2 c6 19. Nxc4 Nxc4 20. Bxc4 bxc4 and it will be hard for White to overcome Black on the queenside)
iii) 15. Bc1 Bxc3 16. bxc3 b6 17. Qa4! Qxa4 18. Rxa4 b5 19. Rb4 a6 20. Nh4 Bg6 21. Nxg6 fxg6 22. Rf7 Rhg8 23. Bg4 Rde8 and Black is tied down, but the follow-up is not evident.

On i) I agree and it is not clear. I had some long time ago on this line,
I need to look it up again. But I think that if someone wants to play
this line, he (she) needs to know this variation well.
ii) This line is in my analysis and in my opinion it is perfectly Ok for Black (basically, that is what JW says, no?)
iii) No comment yet in iii) since I have not looked at it yet.
However, for the time being, I think the alternative given in ii) is OK
and I dont need to go into iii)
  
Back to top
 
IP Logged
 
Michael Ayton
God Member
*****
Offline


‘You’re never alone with
a doppelgänger.’

Posts: 1947
Location: durham
Joined: 04/19/03
Gender: Male
Re: Alekhine 4 Pawns 6...Nc6, 9...Qd7.
Reply #50 - 03/27/09 at 01:31:29
Post Tools
Quote:
I am sure some people will post in favor of an early ...g6 and whatnot, but if that's chess, I'm an idiot.


Re an early ...g6, who knows? You're assuredly not an idiot; but you might just be Dr Tarrasch redivivus ...
  
Back to top
 
IP Logged
 
Markovich
God Member
*****
Offline



Posts: 6099
Location: Columbus, Ohio
Joined: 09/17/04
Re: Alekhine 4 Pawns 6...Nc6, 9...Qd7.
Reply #49 - 03/27/09 at 01:19:24
Post Tools
lg wrote on 03/25/09 at 21:11:14:
!I don't understand 15.Qc1, which looks bad after 15...Bxe2 16.Qxb2 Bh5. "

Sorry!!!!!

15 Qf1 ! and if Bxe2 16 Qxe2


Well, I have to agree that 15.Qf1! works and, so far as I can tell, kills the whole line.  I don't think I'll work on this line any more, since it seems from our investigations here that Black is doomed.  Well, chess is chess; you can't do anything about it.

In my book, that leaves Black with "just" 9...Be7 against the 4PA.  I am sure some people will post in favor of an early ...g6 and whatnot, but if that's chess, I'm an idiot.
  

The Great Oz has spoken!
Back to top
 
IP Logged
 
Page Index Toggle Pages: 1 2 [3] 4 5 ... 7
Topic Tools
Bookmarks: del.icio.us Digg Facebook Google Google+ Linked in reddit StumbleUpon Twitter Yahoo