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Hot Topic (More than 10 Replies) Critical Position in Kozul Suicide (?) (Read 11862 times)
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Re: Critical Position in Kozul Suicide (?)
Reply #15 - 01/29/11 at 22:25:19
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13...Qa7 allows White the extra option of 14.Qe1, whether if it's stronger than 14.Qh3, I am not sure.

Thanks for your analysis Smiley
  
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Re: Critical Position in Kozul Suicide (?)
Reply #14 - 01/29/11 at 12:55:38
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Ooooops I am totally bad. I thought you have asked me about 16...Bh6 17.Qe2 line. Sorry about this.
After 16...Qc5 17.Qe2 again 17...Ke7 18.Nxh5 Bb5! as it was published in the Open Sicilian Section for subscribers back in May 2009 (my own analysis approved by Richard).
So to summarize:
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 b5 10. Bxf6 gxf6 11. Kb1 b4 12. Nce2 Qb6 13. Nxc6 Bxc6 14. f5 e5 15. Ng3 h5 16. h4
1) 16...Bh6 17. Qe2 Ke7 18.Nxh5 Qb7! 19.Re1! b3! =
2) 16...Qc5 17.Qe2 Ke7 18.Nxh5 Bb5! =
  
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Re: Critical Position in Kozul Suicide (?)
Reply #13 - 01/29/11 at 11:30:51
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clickclick wrote on 01/29/11 at 11:04:55:
Milen, I would hardly think 18...Qb7 deserves a exclamation mark, perhaps you meant 18...Bb7?

Nope, I meant exactly 18...Qb7 and it is the only move which keeps Black in the game. The stem game is Guseinov - Kotronias, Moscow Aeroflot 2005.

clickclick wrote on 01/29/11 at 11:04:55:
ps. Although I highly recommend Pavlovic's Cutting Edge work, there is a serious omission in that after, 6.Bg5 e6 7.Qd2 a6 8.0-0-0 Bd7 9.f4 b5 10.Bxf6 gf 11.Nxc6 Bxc6 12.Qe3 Qe7 13.Bd3, he does not mention 13...b4! (instead, only 13...Qa7 is covered).
Also, how do you add a diagram? Undecided

I have some notes about 13...b4 in my files and at the time I looked at these lines I thought it simply transposes after 14.Ne2 Qa7 15.Qh3 into the line 13...Qa7 14.Qh3 b4 15.Ne2. The stem game there is Nevednichy - Kozul, Ljubljana 1999. But again I did not looked at these lines seriously as I do not play 11...Qb6 at all.
About how to insert a diagram - look at this thread http://www.chesspub.com/cgi-bin/yabb2/YaBB.pl?num=1199562081/0#0
  
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Re: Critical Position in Kozul Suicide (?)
Reply #12 - 01/29/11 at 11:04:55
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Milen, I would hardly think 18...Qb7 deserves a exclamation mark, perhaps you meant 18...Bb7?

ps. Although I highly recommend Pavlovic's Cutting Edge work, there is a serious omission in that after, 6.Bg5 e6 7.Qd2 a6 8.0-0-0 Bd7 9.f4 b5 10.Bxf6 gf 11.Nxc6 Bxc6 12.Qe3 Qe7 13.Bd3, he does not mention 13...b4! (instead, only 13...Qa7 is covered).

Also, how do you add a diagram? Undecided
  
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Re: Critical Position in Kozul Suicide (?)
Reply #11 - 01/29/11 at 10:49:44
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Pavlovic dismisses 13.f5 as 'a serious alternative' without analyzing any further if my memory serves me right.
  
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Re: Critical Position in Kozul Suicide (?)
Reply #10 - 01/29/11 at 10:07:58
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Klick wrote on 01/29/11 at 06:20:46:
Whats your assessment of 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 b5 10. Bxf6 gxf6 11. Kb1 b4 12. Nce2 Qb6 13. Nxc6 Bxc6 14. f5 e5 15. Ng3 h5 16. h4 Qc5 17. Qe2 MilenPetrov?

According to my deep analysis it is equal after 17...Ke7 18.Nxh5 Qb7! 19.Re1! b3!. I am sorry but I can not reveal more. Even in some lines Black gets the initiative.

Klick wrote on 01/29/11 at 06:20:46:
As to 13.f5, Qc5 looks like a good  move, what does Pavlovic say here?

I do not know (and do not care) what he says because after 13...e5 I simply reach my main line. Of course this is valid if you ask about 13.f5 in my move order.
  
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Re: Critical Position in Kozul Suicide (?)
Reply #9 - 01/29/11 at 06:20:46
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Sorry for not getting your moves right people.
Whats your assessment of 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 b5 10. Bxf6 gxf6 11. Kb1 b4 12. Nce2 Qb6 13. Nxc6 Bxc6 14. f5 e5 15. Ng3 h5 16. h4 Qc5 17. Qe2 MilenPetrov?

As to 13.f5, Qc5 looks like a good  move, what does Pavlovic say here?
  

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Re: Critical Position in Kozul Suicide (?)
Reply #8 - 01/26/11 at 21:38:46
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MilenPetrov wrote on 01/25/11 at 08:27:38:
Instead of 11...Qb6 i always play first 11...b4 and only then Qb6. Why? Simply to avoid White's plan with Qe1 which according to Pavlovic (Cutting Edge 1) gives White better chances. From the other side it simply transposes after 12. Nce2 Qb6 13.Nxc6 Bxc6 14.f5 e5 15.Ng3 h5.
Thus I also avoid Bd3 lines which I think give White better chances.
After 15...h5 (15...a5 is worse) 16.h4 Black can choose between 16...Qc5 and 16.Bh6.

Well, hats off for your findings. You have already proven your lines to work in corr chess! (If my databases informed me correctly.) I was only spending some thoughts on Khalifman's lines with the idea in mind to make the black lines work for me for some entertaining rapid games. OK, but now I'm getting more and more the impression that all these lines are maybe best played at corr chess with a serious analysis and strong engine in the background. After all, only strong and concrete piece play can help Black to overcome the structural problems one might face otherwise. -- Thx MilenPetrov, and good luck for your corr games! I'm still not sure whether I could cope with these challenges over the board.
  
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Re: Critical Position in Kozul Suicide (?)
Reply #7 - 01/26/11 at 08:57:50
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Yes, you are right, I thought it was 13.Qe1. But without blacks queen on b6 any Nd5 doesnt come with the usual punch. In my notes I thought that Nijboers 12..h5 13.Kb1 Qa5 14.Bd3 0-0-0 was sensible.
  

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Re: Critical Position in Kozul Suicide (?)
Reply #6 - 01/25/11 at 23:39:29
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Klick, I think you mean 13.Qe1? : )

I was very happy to see Pavlovic's 21.Ba6! in the 13...Be7 line, a novelty which I have already found when updating my files some time ago. Perhaps Pavlovic is right when he says that Black's best chance against 11.Kb1...13.Qe1 is for Black to play 13...0-0-0?

  
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Re: Critical Position in Kozul Suicide (?)
Reply #5 - 01/25/11 at 16:33:05
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Quote:
13.f5 - as is recommended by Wells in Experts vs the Sicilian. Yermolinsky coverage of this line in my opinion is inadequate, while Pavlovic only mentions 13.f5 as a 'serious alternative'. So far, I have only managed to dig up ways for White to get a dominating position - despite the computer's insistence otherwise.
Yrjola doesnt even mention 13.f5 in his book on the classical. Without having seen Pavlovic`s or Wells` analysis, Blacks play after sacrificing the f6-pawn seems good enough to me. Kozul lost a game against Volokitin in this line in 2005, but had good play and later repeated the line in 2006 and 2010, both games he won.

Quote:
Instead of 11...Qb6 i always play first 11...b4 and only then Qb6. Why? Simply to avoid White's plan with Qe1 which according to Pavlovic (Cutting Edge 1) gives White better chances.
While 12.Qe1 is a good move, I don`t see any reason to avoid it as I believe black can hold his own here and the play is sharp and interesting. Probably just a matter of taste. Most players seem to play 9.f3 these days, but that is another discussion.
  

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Re: Critical Position in Kozul Suicide (?)
Reply #4 - 01/25/11 at 08:30:06
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Forgot to mention that Khalifman covers both lines which I mentioned in my previous post as better for White but I found improvements for Black which keep them in the game.
  
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Re: Critical Position in Kozul Suicide (?)
Reply #3 - 01/25/11 at 08:27:38
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I play this line with Black but I use a different move order. Instead of 11...Qb6 i always play first 11...b4 and only then Qb6. Why? Simply to avoid White's plan with Qe1 which according to Pavlovic (Cutting Edge 1) gives White better chances. From the other side it simply transposes after 12. Nce2 Qb6 13.Nxc6 Bxc6 14.f5 e5 15.Ng3 h5.
Thus I also avoid Bd3 lines which I think give White better chances.
After 15...h5 (15...a5 is worse) 16.h4 Black can choose between 16...Qc5 and 16.Bh6.
After I spent months of deep analysis I think that both lead to an equal position.
The positions which arise are not easy to be played are not in everyone's taste.
  
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Re: Critical Position in Kozul Suicide (?)
Reply #2 - 01/24/11 at 21:09:25
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So far, I have only looked at 13...h5, if only because both Houdini and Rybka insists it's the best option. Although the engines suggest that the resulting positions are 'equal', I would still take White.

I will take a look at the lines you have posted - thanks : )
  
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Re: Critical Position in Kozul Suicide (?)
Reply #1 - 01/24/11 at 10:59:29
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Yes, Yermolinsky might have had in mind writing another book about this specific Kozul line but this never materialized.

Some analysis of critical lines:
13. f5 Qc5 14. Bd3 b4 (Black has also the line 13... b4 which often leads to the same positions but I think the text limits white options better) 15. Ne2 e5 16. Ng3
a) 16... a5 17. Nh5 Be7!? a rare continuation (There is also 17... Ke7 18. h4 Rg8 but I like White better after 19. Qe2 Bh6 20. g4 a4 21. Bc4 as indicated by Khalifman)
b) 16... h5 17. h4 Bh6 18. Qe2 Qe3 as played by A. Jankovic in two games in 2009.

Can you blow these two lines off the board?
« Last Edit: 01/24/11 at 13:41:00 by Papageno »  
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