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Normal Topic 9.000 d5 10.Kb1 .. What is the latest ? (Read 3599 times)
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Re: 9.000 d5 10.Kb1 .. What is the latest ?
Reply #6 - 12/24/04 at 05:05:06
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???I am very sorry guys,but this line is very bad for black.I play and analyse dragon for many years and this the only black problem in dragon.10...Rb8 is rubbish, because white will play 11.Be2 and black does not have a good move.Relatively best now I think is Qd7?!?!? AngryI do not see,how you would like to hold the postition in the queen sac line Undecided
  
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krieger1
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Re: 9.000 d5 10.Kb1 .. What is the latest ?
Reply #5 - 09/11/04 at 13:08:54
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Bxf6 supposedly gives at least equality.. because of the queen sac.. so exf6 should lead to more than just a slightly inferior position for black, to be considered a playable line.

My 2 Cents
  
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gewgaw
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Re: 9.000 d5 10.Kb1 .. What is the latest ?
Reply #4 - 09/09/04 at 14:03:24
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hi,

I think the latest is 12. ...ef6 (instaed of Bxf6)
--> Lahno - Jobava
13. Bc5 d4 14.Bxf8 Qxf8 unclear - so far...
  

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Re: 9.000 d5 10.Kb1 .. What is the latest ?
Reply #3 - 09/04/04 at 03:55:58
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11.Qe1!? looks like a logical move, though it has only one outing so far:

Shabalov,A (2624) - Hoffman,P [B76]
3rd ACP Blitz Prelim4 playchess.com INT (5), 03.06.2004

1.e4 c5 2.f3 d6 3.d4 cxd4 4.xd4 f6 5.c3 g6 6.e3 g7 7.f3 c6 8.d2 0-0 9.0-0-0 d5 10.b1 b8 11.e1 a5 12.b3 c7 13.exd5 b4 14.c5 a5 15.d6 1-0

  
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Re: 9.000 d5 10.Kb1 .. What is the latest ?
Reply #2 - 09/03/04 at 19:53:14
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I thought I could streamline the Los Variation for forum.

1.e4 c5 2. Nf3 d6 3. d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6. f3 Bg7 7.Be3 0-0 8.Qd2 Nc6 9.0-0-0 d5 10.Kb1 Rb8!?

This is where it gets interesting! White has three options here.

11.h4 e5 12. Nxc6 bxc6 13.exd5 Nxd5 Nxd5 15. Qxd5 Qf6 16. h5 Bf5 17.Bc4 [If 17.hxg6 Rdb8 18.gxf7+ Kh8 19. Qxd8 Rxd8-+ and Black is clearly winning] 17...Be6 18.Qe4 Rb4 Rb4 19.b3 Rfb8 20.Kc1 Bxc4 21.bxc4 Qa6 22. hxg6 hxg6 -+

11.Nbd5 a6 12. Na7 e6 13.Nxc8 [Varga-Fedorov 2003; 13. exd5 exd5 Nxc8 Rxc8 15. Nxd5 Nxd5 16. Qxd5 Qf6 17 Qb3 b5! (17...Rfe8?! as in the Varga-Fedorov game) 18. c3 (18. Bc5 Na5 19.Qa3 Rxc5-+) 18...Rfe8 19. b4 20. Bxa6 Na5 21. Qxb4 Qxa6 with a clear advantage to black] 13...Rxc8 14. exd5 Nxd5 15. Nxd5 exd5 16. Qxd5 Qf6 17. Qb3 b5 18. c3 Rfe8 19. Bf2 b4 20. Be1 a5 21 Ba6 Nd4 gives black a slight advantage.

11. g4 e5 12. Nxc6 bxc6 13. exd5 Nxd5 14. Nxd5 cxd5 15. Qxd5 Qc7 16. Qd6 Qb7 17. b3 Bxg4 18.Bg2 Bxf3 19.Bxf3 Qxf3 with a slight advantage to black

I tried to cover the lines of concern to individuals on the forum. I think 11.Be2!? is a solid option which gives white a slight positional edge.

I am personally more convinced of the Rb8!? option than the queen sac. I think Black gets good positional lines. They are not as tactical we traditionally understand the dragon to be, but Black has equality throughout nonetheless.
  
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AmateurDragoneer
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Re: 9.000 d5 10.Kb1 .. What is the latest ?
Reply #1 - 09/03/04 at 17:32:40
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I think most people are convinced that this line is quite playable with the main source game being an old Adams-Ivanchuk game from the 1998 tournament at Dortmund. IM John Donaldson recently annotated one of Shabalov's wins (with Shabalov playing white, the game continued with the less accurate 17...Bf5 and Shabalov won 7 moves later) at the Chicago open and gives the game continuation: 17. Bd3 Rfd8 18. Qe1 Rd6 19. Qa5 b6 20. Qe1 Rc8 21. a3 Rc5 22. g4 Rcd5 23. Qg3 h5 24. h3 h4 at which point, according to Donaldson, black had achieved "a firm blockade" and he adds that he feels that black's play in that game is indicative of how Black should play in this line.

Incidentally, in his notes to 10...Nxd4, Donaldson gives (10...Rb8) with no annotations whatsoever and simply suggests it as a possible alternative. This move was also suggested by ChessPub forum and site member Teyko and I believe his analysis is posted in one of these topics. If not, send me an message and I can foreward you his analysis.
  
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9.000 d5 10.Kb1 .. What is the latest ?
08/09/04 at 21:00:50
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Hi,

The last assesment of this variation i have is from Golubov's 1999 book where after this line of "forced" moves a Queen Vs Rook and Bishop position is reached:

9.000 d5!? 10.Kb1 Nxd4 11.e5!! Nf5! 12.exf6 Bxf6 13.Nxd5 Qxd5!! 14.Qxd5 Nxe3 15.Qd2 Nxd1 16.Qxd1 Be6!

Anyone know if the jury is still out on this one ?

Krig
  
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