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Normal Topic Taimanov. Acritical line in the English attack (Read 3384 times)
iggistiv
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Re: Taimanov. Acritical line in the English attack
Reply #7 - 05/31/08 at 06:09:33
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Why 11...Nc4 is the only promising line for black?
  
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Re: Taimanov. Acritical line in the English attack
Reply #6 - 05/21/08 at 08:14:05
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Ametanoitos wrote on 03/13/08 at 23:06:18:
[Event "European Team Chess Championships"]
[Site "Crete GRE"]
[Date "2007.11.04"]
[Round "7"]
[White "Ivan Cheparinov"]
[Black "Yannick Pelletier"]
[Result "1-0"]
[ECO "B48"]

Is there any known analysis of this game?

If I remember correctly, the game is analysed in Megabase 2008, which I don't have access to at the moment.
  
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Re: Taimanov. Acritical line in the English attack
Reply #5 - 05/21/08 at 07:41:14
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Bonsai wrote on 03/30/08 at 09:18:47:
Ptero wrote on 03/20/08 at 16:57:20:
My gut feeling is that 20…exf4 is more correct than 20…f6, and black should seek counterplay (following along Cheparinov-Pelletier) with 23…Rb5; introducing the possibility of …Qa5.

23...Rb5 looks pretty good to me. The key point being that on 24.Rhd1 Qb6 white cannot take on d7 due to 25.Rxd7 cxb3 26.cxb3 Rxb3+! -+


In TWIC 703 I noticed another game played with this variation, featuring the line mentioned above: 23...Rb5 24.Rhd1 Qb6.

[Event "IX EICC"]
[Site "Plovdiv BUL"]
[Date "2008.04.26"]
[Round "6"]
[White "Yordanov, N."]
[Black "Papin, V."]
[Result "0-1"]
[ECO "B48"]
[WhiteElo "2296"]
[BlackElo "2483"]
[PlyCount "112"]
[EventDate "2008.04.21"]
[Source "Mark Crowther"]
[SourceDate "2008.04.28"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 Nf6 8. f3
Ne5 9. O-O-O Bb4 10. Nb3 b5 11. Kb1 Nc4 12. Bxc4 bxc4 13. Nc1 Rb8 14. Bf4 e5
15. Bg5 Qb6 16. N1e2 Ba3 17. b3 O-O 18. Bxf6 Qxf6 19. Nd5 Qd8 20. f4 exf4 21.
Qxf4 Bb7 22. Ng3 Bxd5 23. Rxd5 Rb5 24. Rhd1 Qb6 25. Qe5 d6 26. Qc3 Rxd5 27.
exd5 cxb3 28. axb3 Bb4 29. Qc4 Qa5 30. Ne2 Re8 31. c3 Bc5 32. Nc1 g6 33. b4 Qb6
34. Nb3 Bf2 35. Rd2 Qe3 36. Kc2 Be1 37. Rd1 Qf2+ 38. Nd2 Qxg2 39. Qf1 Qe2 40.
Qf4 Re5 41. Qc4 h5 42. Qc6 Qg2 43. Qxd6 Rxd5 44. Qf4 g5 45. Qe3 Bxd2 46. Rxd2
Qxd2+ 47. Qxd2 Rxd2+ 48. Kxd2 f5 49. Ke3 Kf7 50. c4 Ke6 51. Kd4 h4 52. Ke3 Ke5
53. Kd3 g4 54. Ke3 f4+ 55. Kf2 Kd4 56. c5 Kd5 0-1

  
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Bonsai
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Re: Taimanov. Acritical line in the English attack
Reply #4 - 05/19/08 at 22:21:34
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Interestingly Ivanchuk went into the Taimanov-English attack in the last round of the MTel and offered Chepanariov to repeat that line, which he didn't. Assuming Ivanchuk didn't check his database before the game, I'd assume he had something prepared, too.
  
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Re: Taimanov. Acritical line in the English attack
Reply #3 - 03/30/08 at 09:18:47
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Ptero wrote on 03/20/08 at 16:57:20:
My gut feeling is that 20…exf4 is more correct than 20…f6, and black should seek counterplay (following along Cheparinov-Pelletier) with 23…Rb5; introducing the possibility of …Qa5. But then again, what do I know; Chep might have worked it out to a forced win for white on move 40.

23...Rb5 looks pretty good to me. The key point being that on 24.Rhd1 Qb6 white cannot take on d7 due to 25.Rxd7 cxb3 26.cxb3 Rxb3+! -+ and so would probably have to settle for something like 25.Rxb5 axb5 when black will be able to put his rook on the a-file. Should white play something with Nf5 + Qg-somewhere, then most of the time Bf8 seems quite sufficient (and also potentially gets out of the way of a rook on the a-file), while the white rook does not seem to have any attractive ways of leaving the first rank due to back-rank checks such as Qg1.

I guess more critical might be 25.Qd2 aiming to take on d7 with the queen, but even if white wins the pawn black still seems to have fairly good counter-play, unless Cheparinov had some clever idea down the road up his sleeves.
  
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Re: Taimanov. Acritical line in the English attack
Reply #2 - 03/20/08 at 16:57:20
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gewgaw wrote on 03/15/08 at 13:02:47:
20.f4 looks at first sight innocent, but is indeed quite poisonous; my answer would be:
20. ... d6 21. f5 (21. fxe5 dxe5 =) 21... f6 22. g4 a5 23. h4 (23. g5!? fxg5 24. h4 g4 25. Rdg1 (25. h5)) 23... Rf7 24. g5 cxb3 25. cxb3 a4 26. gxf6 axb3 27. Ne7+ Rxe7 28. fxe7 Qxe7 29. Qd5+ Qf7 30. Rh3 Ba6 31. Qxf7+ Kxf7 32. Rd2 (32. Rxb3 Rxb3+ 33. axb3
Bxe2) 32... bxa2+ 33. Kxa2 Bc5 about equal.




My gut feeling is that 20…exf4 is more correct than 20…f6, and black should seek counterplay (following along Cheparinov-Pelletier) with 23…Rb5; introducing the possibility of …Qa5. But then again, what do I know; Chep might have worked it out to a forced win for white on move 40.

Interestingly, in the recent Russian championship, Morozevich forwent the 14.Bf4 recommendation and played 14.Ka1 against Vitiugov, only to find himself defending a worse position.
  
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Re: Taimanov. Acritical line in the English attack
Reply #1 - 03/15/08 at 13:02:47
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20.f4 looks at first sight innocent, but is indeed quite poisonous; my answer would be:
20. ... d6 21. f5 (21. fxe5 dxe5 =) 21... f6 22. g4 a5 23. h4 (23. g5!? fxg5 24. h4 g4 25. Rdg1 (25. h5)) 23... Rf7 24. g5 cxb3 25. cxb3 a4 26. gxf6 axb3 27. Ne7+ Rxe7 28. fxe7 Qxe7 29. Qd5+ Qf7 30. Rh3 Ba6 31. Qxf7+ Kxf7 32. Rd2 (32. Rxb3 Rxb3+ 33. axb3
Bxe2) 32... bxa2+ 33. Kxa2 Bc5 about equal.


  

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Taimanov. Acritical line in the English attack
03/13/08 at 23:06:18
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After following closely with the thread for Khalifman's recomendation on the Taimanov English attack (   ), and reading the relevant chapter in the Safest Sicilian i remembered instantly that there is an important new game presenting a new idea in a well analysed position:

[Event "European Team Chess Championships"]
[Site "Crete GRE"]
[Date "2007.11.04"]
[Round "7"]
[White "Ivan Cheparinov"]
[Black "Yannick Pelletier"]
[Result "1-0"]
[ECO "B48"]
[WhiteElo "2670"]
[BlackElo "2609"]
[PlyCount "59"]
[EventDate "2007.10.28"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 Nf6 8.
O-O-O Bb4 9. f3 Ne5 10. Nb3 b5 11. Kb1 Nc4
(In The Safest Sicilian is clear that Topalov has revived the line for white and the only promising line for black is that of 11...Nc4)
12. Bxc4 bxc4 13. Nc1 Rb8 14. Bf4 e5
15. Bg5 Qb6 16. N1e2 O-O 17. Bxf6 Ba3 18. b3 Qxf6 19. Nd5 Qd8
20. f4 exf4
(20.f4 is the new move improving over the previous attempts for white to gain anything from the position. I wonder what happens after black playing another move other than 20...exf4.I suppose 21.f5 or fxe5 are the options, but what is the strongest?)
21.Qxf4 Bb7 22. Ng3 Bxd5 23. Rxd5 Rb6 24. Rhd1 cxb3 25. axb3 Qc8 26. R1d3 Rd8 27.e5 Qc6 28. Ne4 Rb5 29. Nf6+ gxf6 30. Rd6 1-0

An impresing win of the two knights (even if the one on d5 didn't survive for to long!) against the so-called powerfull two bishops! Shocked
Seriously, it seems that black is in a bit of pressure here. Surely the  Cheparinov-Topalov team have done their work! Is there any known analysis of this game?
20.f4! is
  
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