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Hot Topic (More than 10 Replies) Black's Gambit vs. Anti-Benoni (Read 15991 times)
Glenn Snow
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Re: Black's Gambit vs. Anti-Benoni
Reply #22 - 12/10/08 at 00:23:34
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Those really interested in this might want to buy Dangerous Weapons: Flank Openings as chapter 7 is devoted to this gambit. 

http://www.chesspub.com/cgi-bin/yabb2/YaBB.pl?num=1207136459/75#75
  
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Re: Black's Gambit vs. Anti-Benoni
Reply #21 - 11/22/08 at 21:33:45
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Dink Heckler wrote on 09/08/07 at 22:38:34:
However, in the high-level encounter Harikrishna-Sutovsky, Essent 2005, White happily played down this line, and indeed after 9 e3, Black chose to deviate with 9...Bxd6 10 Nxa8 Bb4+ 11 Nd2 Qh4 12 g3 Qf6 13 f3 Nxd2 14 Bxd2 Rd8 15 Bxb4...and Black eventually bailed out with a perpetual after some further fun and games.....

Now, this really leaves me scratching my head. Why did White allow this, and why did Black deviate from the prescribed continuation?


I studied Harikrishna's games a little recently (had a good reason Smiley). My conclusion is that the guy is a great player, but does not necessarily study the opening theory in depth. Actually, he lands in strange or dubious positions relatively often, but most of the times finds a way to bail himself out due to his immense tactical skills. So my highly unscientific guess would be that Harikrishna simply outbluffed Sutovsky on that one...

The good news that these days it is easy to check this hypothesis - just put the position on Fritz or Rybka for a few hours. Since this position is so damn tactical, you'll be able to find the right answer yourself!
  
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Re: Black's Gambit vs. Anti-Benoni
Reply #20 - 10/06/08 at 03:09:13
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Dink Heckler wrote on 09/08/07 at 22:38:34:
There's something that's been bugging me in this line.

After:
1 c4 c5
2 Nf3 Nf6
3 d4 cd
4 Nd4 e5
5 Nb5 d5
6 cd Bc5,

the continuation
7 d6?! 0-0
8 Nc7? has been 'known' to be weak for practically as long as this line has existed 
8...Ne4
9 e3 Bb4+
10 Nd2 Qxd6
11 Nxa8 Ra8 etc (see Teske-Salmensuu for details).
This is all well known and very much conventional wisdom.

However, in the high-level encounter Harikrishna-Sutovsky, Essent 2005, White happily played down this line, and indeed after 9 e3, Black chose to deviate with 9...Bxd6 10 Nxa8 Bb4+ 11 Nd2 Qh4 12 g3 Qf6 13 f3 Nxd2 14 Bxd2 Rd8 15 Bxb4...and Black eventually bailed out with a perpetual after some further fun and games.....

Now, this really leaves me scratching my head. Why did White allow this, and why did Black deviate from the prescribed continuation?



10. Nc3 !?  Fritz

 
And things may not be as clear as Black would like. 

  
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Re: Black's Gambit vs. Anti-Benoni
Reply #19 - 09/28/08 at 02:56:47
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Markovich wrote on 05/17/05 at 14:19:24:
The topic is 1. d4 Nf6  2. c4 c5  3. Nf3 cxd4  4. Nxd4 e5.  If you look in, say, Chess Assistant's big database, you will see that 4...e5 is played more often than anything else, and that it has good statistics.  But the theoretical consensus seems to be that Black's game may be a little dicey.  

I have some questions that I hope visitors here will take the time to consider.  

(1)  The main line is 5. Nb5 d5  6. cxd5 Bc5  7. N5c3 O-O  8. e3 e4  9. Be2 Qe7  10. Nd2  Does Black have full compensation?





Well I cannot comment on this variation as I am playing it in correspondence chess. however I will say that there are ideas for black that have only been tested in a very few games.
  
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Re: Black's Gambit vs. Anti-Benoni
Reply #18 - 09/10/07 at 02:33:28
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Only Harikrishna and Sutovsky can clarify, I'm afraid. As far as I can see 9...Bb4+ is still close to winning.
  
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Re: Black's Gambit vs. Anti-Benoni
Reply #17 - 09/08/07 at 22:38:34
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There's something that's been bugging me in this line.

After:
1 c4 c5
2 Nf3 Nf6
3 d4 cd
4 Nd4 e5
5 Nb5 d5
6 cd Bc5,

the continuation
7 d6?! 0-0
8 Nc7? has been 'known' to be weak for practically as long as this line has existed 
8...Ne4
9 e3 Bb4+
10 Nd2 Qxd6
11 Nxa8 Ra8 etc (see Teske-Salmensuu for details).
This is all well known and very much conventional wisdom.

However, in the high-level encounter Harikrishna-Sutovsky, Essent 2005, White happily played down this line, and indeed after 9 e3, Black chose to deviate with 9...Bxd6 10 Nxa8 Bb4+ 11 Nd2 Qh4 12 g3 Qf6 13 f3 Nxd2 14 Bxd2 Rd8 15 Bxb4...and Black eventually bailed out with a perpetual after some further fun and games.....

Now, this really leaves me scratching my head. Why did White allow this, and why did Black deviate from the prescribed continuation?
« Last Edit: 09/09/07 at 08:55:16 by Dink Heckler »  
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Re: Black's Gambit vs. Anti-Benoni
Reply #16 - 08/14/07 at 03:40:01
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You've got to be kidding.  And yes, I know there's a thread on this somewhere around here...
  
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Re: Black's Gambit vs. Anti-Benoni
Reply #15 - 08/14/07 at 02:59:23
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You want to play a gambit against the Benoni? Try 1 d4 c5 2 b4!  or 1 d4 c5    2 Nf3 cxd4 3 b4! , the Zilbermints Benoni.

The advantage is that there is no theory on this in the regular chess books.
After 1 d4 c5 2 Nf3 cxd4  4 b4!  Black no longer has the option of capturing the b4-pawn as after 1 d4 c5 2 b4! cxb4 3 a3.

Keep in touch.
  
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Re: Black's Gambit vs. Anti-Benoni
Reply #14 - 08/01/07 at 13:44:03
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With the white pieces against this gambit, 18-year-old USCF Master Eric Rodriguez of Florida yesterday defeated IM Enrico Sevillano on first board of the U.S. Open.  Sevillano got into a dither with his pieces, and didn't have anywhere to put his f6 knight when Rodriguez pushed g4 (with tempo on Black's f5 bishop), g5.  Rodriguez then nicely stymied the IM's attempts at counterplay.

Sevillano's unobservant handling of the opening was a little strange, since the push of the g-pawn is a theme in White's play against this gambit, these days.  His choice of 10...a6 instead of 10...a5 was interesting, though.

Personally I like White's chances against this gambit.

U.S. Open 2007
2007-07-31
White: Rodriguez, Eric
Black: Sevillano, Enrico M


1.d4 Nf6 2.c4 c5 3.Nf3 cxd4 4.Nxd4 e5 5.Nb5 d5 6.cxd5 Bc5 7.N5c3 O-O 8.e3 e4 9.Nd2 Re8 10.a3 a6 11.Be2 Bf5 12.b4 Ba7 13.Bb2 Nbd7? 14.g4 Bg6 15.g5 Rc8 16.gxf6 Qxf6 17.Nc4 Qh4 18.Qd2 Red8 19.a4 Bh5 20.Nd6 Ne5 21.Nxc8 Rxc8 22.Nb5 Nd3+ 23.Bxd3 exd3 24.Nxa7 Rc2 25.Rc1 Qe4 26.Rg1 f6 27.Rxc2 dxc2 28.d6 1-0.
« Last Edit: 08/02/07 at 12:45:44 by Markovich »  
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Re: Black's Gambit vs. Anti-Benoni
Reply #13 - 09/09/05 at 13:05:17
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Quote:

My conclusion: White's best try is 8.e3 e4 9.a3 a5 10.Be2 followed by g2-g4.


It is probably just a matter of taste, but I don't think Black should play along with an immediate a5.  Rather 9...Re8 with the idea that against b4, Black plays Bf8 and a5.

See Karpov-Topalov 1995, for example.
  
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Re: Black's Gambit vs. Anti-Benoni
Reply #12 - 09/09/05 at 06:30:26
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As an afterthought, perhaps JW could please give some games with it in his next update?
  
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Re: Black's Gambit vs. Anti-Benoni
Reply #11 - 09/09/05 at 06:29:38
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I'm about six months out of date on this line, but back then it was looking fine and fun for Black. Is 8 h3 really problematic? Mind you I found Black's play in Timman-Topalov (think I've that big 90s clash from a Spanish event correct) rather convincing.
  
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Re: Black's Gambit vs. Anti-Benoni
Reply #10 - 08/26/05 at 02:17:15
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(1a) It is my impression, that White's move order 8. e3 e4 9. Be2 Qe7 10. Nd2 is slightly imprecise. According to Stohl after Rd8 White's best is 11.a3. Now Black has a fair choice and does not need to play a5; Kasparov preferred Nxd5. 12.Ncxe4 looks very risky because of the piece sac on e3, see Barkovsky-Tseitlin, Leningrad 1981 and Postny-Smirin, Israel 1999. After 12.Nxd5 Rxd5 it is not clear if White can maintain an advantage. My conclusion is, that White should play a3 at an earlier stage, to provoke a5.
(1b) Maybe White need not play 11.a3 and can afford 11.o-o. Though Smyslov_Fan forbids gambiteers to win the pawn back, Na6 12.a3 Nc7 looks best: 13.b4 Bd6 14.Qc2 Miles-Ristic, Metz 1995, Ncxd5 looks sufficient for equality. Another try is 11.Qa4 Bf5 12.g4 when Bg6 pleases me most.
(1c) Even after 9.a3 a5 10.Be2 Qe7 11.Nd2 Rd8 Black has done quite well. Still White might prove an edge after 12.Qc2 Bf5 13.o-o or 13.Nb3.
(2a) This is another argument to play 9.a3 a5 as after 10.Be2 Qe7 11.g4 Rd8 12.g5 Ne8 13.Nd2 Bf5 14.Bg4 Qxg5 15.Bxf5 Qxf5 16.Ndxe4 Black cannot play Bb4. In stead of Dorfman-Glavina White might also follow the path of Gelfand-Gofman, Kramatorsk 1989.
(2b) Why should Qe7 be the main line? Black has Re8 too: 9.a3 a5 10.Be2 Re8 11.Nd2 Bf5 though 12.g4 Bg7 13.h4 is possible again.
(3) 8.h3 Bf5 9.g4 (other moves do not convine) Be4 10.f3 Nxd5 11.fxe4 Qh4+ 12.Kd2 Ne3 gives Black a terrific attack.

My conclusion: White's best try is 8.e3 e4 9.a3 a5 10.Be2 followed by g2-g4.
  
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Re: Black's Gambit vs. Anti-Benoni
Reply #9 - 08/17/05 at 01:30:09
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In Markovich's main line, is there a known reply to 10...Bb4?

White seems quite tied down... 11.Qb3 Rd8 12.0-0 (not very thematic, but what else?) Na6...

11.a3 Bxc3 12.bxc3 Nxd5 13.Nxe4 Rd8 14.Qc2 Bf5 15.Be3 Bg6 with some compensation for the pawn.

I'd be interested in knowing what correct play for White is here.
  
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Re: Black's Gambit vs. Anti-Benoni
Reply #8 - 08/16/05 at 17:59:30
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Thx!
  
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