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Normal Topic 12. Bf3, in the Bayonet Attack (Read 4784 times)
Ametanoitos
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Re: 12. Bf3, in the Bayonet Attack
Reply #5 - 07/03/07 at 09:44:11
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I think there is also the interesting Nataf's move 12.Bf3 Rb8!? (instead of c6). Maybe white can try 13.Be3 here but it's not clear at all!  Also in the Bayonet generally i have found a good solution in the 10..a5 line. If i was white i would invenstigate the old lines with 10.c5 instead of Re1. I was uncomfortable when preparing for black because of some Beliavsky's games after 10.c5. The suggestion of NCO is not aqequate. If you are interested we can start a new discusion about that.
  
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cma6
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Re: 12. Bf3, in the Bayonet Attack
Reply #4 - 07/03/07 at 02:06:53
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Ametanoitos wrote on 02/15/07 at 15:17:54:
Although i haven't understand yet why after 12...Kh8 13.Be3 is not sufficient for a white advantage it seems that this waiting move of Black's is the best after 12.f3 (Black come to this conclusion after trying all the alternatives!).
  Now about the 12.Bf3 issue, as i know all the opening publications tend to think that after 12..c6 Black can equalise in the majority of cases or at least to generate sufficient countrplay. Even now it is not clear if the exchange sucrifice of Shirov's against Rabjabov, to which you reffer to,is a += or unclear. I think that if Shirov had make a safe conclusion he would repeat this variation.


  Actually this whole line is a =+ after 12 Bf3, c6; 13 Bb2, h6; 14 Ne6, Bxe6; 15 dxe, fxe; 16 Nxe4, Nxe4; 17 Rxe4, d5; 18 cxd, cxd; 19 Rxe5 (Exchange sac) Bxe5; 20 Bxe5, Qb6; 21 Bb2, Rad8 where 21... deviates from Shirov-Radjabov and is even better than Radjabov's 21...Kh7. And of course Black can sidestep the whole sac (but why should he?) with 17...Nf5
  ICCF GM Morgado, playing White, has analyzed this line to a fare-thee-well.
« Last Edit: 07/03/07 at 13:45:59 by cma6 »  
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cma6
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Re: 12. Bf3, in the Bayonet Attack
Reply #3 - 07/03/07 at 02:05:43
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Ametanoitos wrote on 02/15/07 at 15:17:54:
Although i haven't understand yet why after 12...Kh8 13.Be3 is not sufficient for a white advantage it seems that this waiting move of Black's is the best after 12.f3 (Black come to this conclusion after trying all the alternatives!).
  Now about the 12.Bf3 issue, as i know all the opening publications tend to think that after 12..c6 Black can equalise in the majority of cases or at least to generate sufficient countrplay. Even now it is not clear if the exchange sucrifice of Shirov's against Rabjabov, to which you refer to,is a += or unclear. I think that if Shirov had make a safe conclusion he would repeat this variation.


  Actually this whole line is  =+ after 12 Bf3, c6; 13 Bb2, h6; 14 Ne6, Bxe6; 15 dxe, fxe; 16 Nxe4, Nxe4; 17 Rxe4, d5; 18 cxd, cxd; 19 Rxe5 (Exchange sac) Bxe5; 20 Bxe5, Qb6; 21 Bb2, Rad8 which is even better than Radjabov's 21...Kh7. And of course Black can sidestep the whole sac (but why should he?) with 17...Nf5
  
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Edward_Dearing
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Re: 12. Bf3, in the Bayonet Attack
Reply #2 - 02/19/07 at 10:29:26
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There is also the issue that Black doesn't need to go into the exchange sac variation - 17...Nf5 is a solid option but more passive option that was played by Dorfman (I think) back in the early 90's, and White is yet to show a serious edge.

Re White having an edge after 12.Bf3, I have some of my own ideas here (probably worse than existing theory, but one has to try!) but I am curious to know why Cox thinks White has an edge. Anyone care to fill me in?
  
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Ametanoitos
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Re: 12. Bf3, in the Bayonet Attack
Reply #1 - 02/15/07 at 15:17:54
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Although i haven't understand yet why after 12...Kh8 13.Be3 is not sufficient for a white advantage it seems that this waiting move of Black's is the best after 12.f3 (Black come to this conclusion after trying all the alternatives!).
  Now about the 12.Bf3 issue, as i know all the opening publications tend to think that after 12..c6 Black can equalise in the majority of cases or at least to generate sufficient countrplay. Even now it is not clear if the exchange sucrifice of Shirov's against Rabjabov, to which you reffer to,is a += or unclear. I think that if Shirov had make a safe conclusion he would repeat this variation.
  
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12. Bf3, in the Bayonet Attack
02/15/07 at 02:43:53
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Hello, All; In the recently concluded Corus super-tournament, GM Radjabov has had some sucess using the King's Indian. In two games, he defeated both GM Van Wely and GM Shirov in the Bayonet Attack. The moves, against Van Wely,  were  1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8.d5 Ne7 9. b4 Nh5 10. Re1 f5 11. Ng5 Nf6 12. f3 Kh8 13. Ne6 Bxe6 14. dxe6
Nh5 15. g3 Bf6 16. c5 f4 17. g4 Ng7 18. Bc4 Nc6 19. cxd6 cxd6 20. Ne2 Rc8
21. Bd5 Nxb4 22. Rb1 Nc2 23. Rf1 b6 24. Rb2 Ne3 25. Bxe3 fxe3 26. Qb3 Bg5
27. Nc3 Rc5 28. Na4 Rc7 29. Nc3 Qc8 30. Nb5 Rc1 31. Rb1 Rxf1+ 32. Rxf1 Qc5
33. Kg2 Rc8 34. Re1 a6 35. Na3 Qd4 36. Re2 Rc3 37. Qb2 h5 38. h3 Qd1 39.
Bb3 Rxb3 40. axb3 Nxe6 0-1 and against Shirov, the move were 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8.d5 Ne7 9. b4 Nh5 10. Re1 f5 11. Ng5 Nf6 12. f3 Kh8 13. Ne6 Bxe6 14. dxe6Nh5 15. g3 Bf6 16. c5 f4 17. g4 Ng7 18. Bc4 Nc6 19. cxd6 cxd6 20. Ne2 Rc8
21. Bd5 Nxb4 22. Rb1 Nc2 23. Rf1 b6 24. Rb2 Ne3 25. Bxe3 fxe3 26. Qb3 Bg5
27. Nc3 Rc5 28. Na4 Rc7 29. Nc3 Qc8 30. Nb5 Rc1 31. Rb1 Rxf1+ 32. Rxf1 Qc5
33. Kg2 Rc8 34. Re1 a6 35. Na3 Qd4 36. Re2 Rc3 37. Qb2 h5 38. h3 Qd1 39.
Bb3 Rxb3 40. axb3 Nxe6 0-1.  Now, in both of these games, I believe the better move for white is 12. Bf3? This is recommended by IM Cox in his book Starting Out d4. In fact, Shirov, himself, beat Radjabov with 12. Bf3 in the 2004 Linares tournament. Now, knowing the strength of 12. Bf3, why did not Shirov and Van Wely play this move? Surely, they would have had a better game than when they both played 12. f3. Can someone tell me the latest word on the Bf3 move? Has black found a way to deal with 12. Bf3? Thank you.
  
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