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Hot Topic (More than 10 Replies) Unsound pawn sacrifice in QGA? (Read 6469 times)
Semkov(Guest)
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Re: Unsound pawn sacrifice in QGA?
Reply #12 - 11/24/07 at 12:46:28
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Semkov has to say that taking on d4 loses for Black. I claim so in the QGA third edition which is still on the drawing board, but probably less than 1 month away from being printed.
  
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sssthepro
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Re: Unsound pawn sacrifice in QGA?
Reply #11 - 11/16/07 at 06:43:25
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Sorry, I mean taking the knight first
  
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Smyslov_Fan
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Re: Unsound pawn sacrifice in QGA?
Reply #10 - 11/16/07 at 00:31:39
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Quote:
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Bxc4 c5 5. Qe2 cxd4 6.exd4 Nc6 7.0-0 Nxd4!? 
 
I dunno. Of course, White has a big development advantage, but I cannot think of anything to make the advantage concrete. For example, one of my games is as follows: 
 
8.Nc3 a6 9.Be3 Qh4 9. Rfd1 Be7 What now? 


I don't have a board in front of me, but 8.Nc3 might best be answered by 8...Nd4x(Q)e2+ Embarrassed
  
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Re: Unsound pawn sacrifice in QGA?
Reply #9 - 11/15/07 at 17:46:54
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I admit to not knowing the ultimate truth.

I looked at several books; no two of them agreed exactly, when they mentioned the line at all.  Their evaluations of the whole thing varied by a full category, i.e. from about equal to White is clearly better.  I wonder what Semko(v) and Sakaev have to say, though.

In the only GM game I'm aware of from recent years, White played a line which doesn't look impressive (and which had been given as worse for him), but ended up winning.  (Update:  I see that LeeRoth just posted the game I was talking about.)

All rather curious.
  
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LeeRoth
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Re: Unsound pawn sacrifice in QGA?
Reply #8 - 11/15/07 at 17:34:06
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If you don't like this variation, I would suggest something other than the Furman.  But there really isn't any reason to worry about this as White:

[Event "Ubeda op 3rd"]
[Site "Ubeda"]
[Date "1998.01.25"]
[Round "6"]
[White "Pelletier, Yannick"]
[Black "Arencibia, Walter"]
[Result "1-0"]
[ECO "D26"]
[WhiteElo "2515"]
[BlackElo "2535"]

1. d4 d5 2. c4 dxc4 3. Nf3 e6 4. e3 Nf6 5. Bxc4 c5 6. Qe2 cxd4 7. exd4 Nc6 8.
O-O Nxd4 9. Nxd4 Qxd4 10. Rd1 Qb6 11. Bb5+ Bd7 12. Nc3 Bxb5 13. Qxb5+ Qc6 14.
Be3 Be7 15. Rac1 O-O 16. Qxc6 bxc6 17. Na4 Rfc8 18. Rc4 Nd5 19. Rdc1 Nxe3 20.
fxe3 g6 21. Kf2 Bd6 22. Rxc6 Rd8 23. h3 Be5 24. Ke2 Rab8 25. b3 Kg7 26. Ra6
Rbc8 27. Rc5 Rxc5 28. Nxc5 Bb8 29. b4 Kf6 30. Ra5 Rd5 31. a4 Ke7 32. Rb5 Bd6
33. Rb7+ Ke8 34. Ne4 Be7 35. Rxa7 Re5 36. Ra8+ Kd7 37. Ra7+ Ke8 38. Kd3 Bxb4
39. Nf6+ Kd8 40. Rd7+ Kc8 41. Rxf7 Rf5 42. g4 Rf3 43. Ke2 Rxh3 44. Rxh7 Rxh7
45. Nxh7 Kd7 46. Kd3 Ke7 47. Ng5 Kd6 48. Nf3 1-0

  
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sssthepro
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Re: Unsound pawn sacrifice in QGA?
Reply #7 - 11/15/07 at 08:33:59
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Is this the best way to play for White? Are there better moves?
  
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LeeRoth
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Re: Unsound pawn sacrifice in QGA?
Reply #6 - 11/15/07 at 02:15:41
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Yes, but it moved to d7 to capture White's bishop.  12..Nf6xd7.
  
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Re: Unsound pawn sacrifice in QGA?
Reply #5 - 11/15/07 at 01:21:39
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erm, Mf6 is already played. 3...Nf6
  
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Re: Unsound pawn sacrifice in QGA?
Reply #4 - 11/14/07 at 19:03:16
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No, I meant 13...Nf6 (in the 13...Be7 version, Black would be taking it upside the head at the end).

13...Bc5 is interesting but seems promising for White, for instance after 14. Na4 Qc6 15. Nxc5 Qxc5 (if 15...Nxc5, with ideas like 16. Be3 0-0 17. Rac1 Qa6 18. Qg4 f5, then probably 16. Qg4) 16. Be3 Qe5 (16...Qa5 17. Qg4) and now probably 17. Rac1 (although White can regain the pawn by 17. Qd2/d3 Nf6 18. Bxa7).

So get it on the board and play it, or whatever that John Cox expression was.
  
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sssthepro
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Re: Unsound pawn sacrifice in QGA?
Reply #3 - 11/14/07 at 10:27:28
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I think you mean 13...Be7. 

However, I think Black can play 13...Bc5. After 14.Na4 Qc6 15.Nxc5 Qxc5 White may have gotten the bishop, but is this enough for an advantage?
  
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Re: Unsound pawn sacrifice in QGA?
Reply #2 - 11/14/07 at 07:16:07
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Filling in the couple of moves that you left out, one old recommendation is 10. Rd1 Qb6 11. Bb5+ Bd7 12. Bxd7+ Nxd7 13. Nc3 Nf6 14. Be3 Qc6 15. Rac1 a6 16. Nd5 Qxd5 17. Rxd5 with a slight advantage to White (Malich-Uhlmann, Zinnowitz 1966).
  
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Re: Unsound pawn sacrifice in QGA?
Reply #1 - 11/14/07 at 06:54:30
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Can people please reply? Sad
  
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sssthepro
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Unsound pawn sacrifice in QGA?
11/13/07 at 00:12:48
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I recently had a few games in a particular line and lost all of them Sad

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Bxc4 c5 5. Qe2 cxd4 6.exd4 Nc6 7.0-0 Nxd4!?

I dunno. Of course, White has a big development advantage, but I cannot think of anything to make the advantage concrete. For example, one of my games is as follows:

8.Nc3 a6 9.Be3 Qh4 9. Rfd1 Be7 What now? 

Another game:

8.Rd1 Qb6 9.Nc3(if 9.Be3 immediately Black has 9...Bc5) a6 10. Be3 Qc7 What now? 


I would appreciate any comments. Thanks.
  
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