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Is the Gruenfeld Defense Dying?....
http://www.chessexchange.com/forum/viewtopic.php?f=2&t=131
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Author:  kapilgain [ Thu Apr 14, 2005 6:17 am ]
Post subject: 

Wow! I never expected 26.Rce1 to be the winning move for White! :shock: Indeed, the line which you (and your computer engine! :P :wink:) claim wins for White. However, this does not yet convince me that the Gruenfeld is a weak opening, and also that Berliner's 9.Be3 and 10.h4 are its refutation :twisted:. So, I went through our entire analysis to seek out the problem and it is clear that the Simagin Improved variation (which Berliner chose for the purpose of analysis) is a bad choice for the Gruenfeld player and that owing to this the White centre pawns turn out to be Black's root cause of failure :evil:. Keeping this fact in mind, I would suggest these lines for Black, where unfortunately Berliner's spike pawn manoeuvre h2-h4 is ineffective! :twisted: :

a) 1.d2-d4 Ng8-f6 2.c2-c4 g7-g6 3.Nb1-c3 d7-d5 4.c4xd5 Nf6xd5 5.e2-e4 Nd5xc3 6.b2xc3 Bf8-g7 7.Bf1-c4 0-0 8.Ng1-e2 Nb8-c6 9.Bc1-e3 b7-b6 10.h2-h4 Nc6-a5 11.Bc4-d3 e7-e5 12.d4xe5 {With a bad pawn structure}


b) 1.d2-d4 Ng8-f6 2.c2-c4 g7-g6 3.Nb1-c3 d7-d5 4.c4xd5 Nf6xd5 5.e2-e4 Nd5xc3 6.b2xc3 Bf8-g7 7.Bf1-c4 0-0 8.Ng1-e2 c7-c5 9.0-0 Nb8-c6 10.Bc1-e3 Bc8-g4 11.f2-f3 Nc6-a5 12.Bc4-d3 c5xd4 13.c3xd4 Bg4-e6 14.Qd1-a4 a7-a6 15.d4-d5 b7-b5 16.Qa4-b4 Bg7xa1 17.Rf1xa1 Be6-d7 18.Qb4-d4 f7-f6 19.e4-e5 f6xe5 20.Qd4xe5 Qd8-b8 21.Qe5xe7 Rf8-e8 22.Qe7-c5 Na5-b7 23.Qc5-c1 Nb7-d6 24.Ne2-g3 Bd7-f5 25.Qc1-d2 Bf5xd3 26.Qd2xd3 Qb8-d8 {Winning for Black!}


c) 1.d2-d4 Ng8-f6 2.c2-c4 g7-g6 3.Nb1-c3 d7-d5 4.c4xd5 Nf6xd5 5.e2-e4 Nd5xc3 6.b2xc3 Bf8-g7 7.Bf1-c4 0-0 8.Ng1-e2 c7-c5 9.Bc1-e3 Nb8-c6 10.h2-h4 c5xd4 11.c3xd4 Nc6-a5 12.Bc4-d3 Na5-c6 13.Bd3-c2 Qd8-a5+ 14.Be3-d2 Qa5-h5 {Black has the initiative}

Author:  fickle [ Fri Apr 15, 2005 8:16 am ]
Post subject: 

kapilgain wrote:
a) 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 Nc6 9.Be3 b6 10.h4 Na5 11.Bd3 e5 12.d4xe5 {With a bad pawn structure}

Berliner recommends 12.h5!, not 12.dxe5?, which as you rightly point out leads to a bad pawn structure for White.

12.h5 Qe7 13.Qd2 exd4 14.cxd4 Bb7 15.f3 c5 16.Bh6 Bxh6 17.Qxh6 cxd4 18.e5!

I don't know if he analyses your other line (8...c5). I'll have to take a look at it .. [edit: here it is:]

Berliner's Improvement

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Ne2 O-O 9.Be3 Nc6 10.Rc1! cxd4 11.cxd4 Qa5+ 12.Kf1 Bd7 13.h4 Rfc8 14.h5 Nd8 15.hxg6 hxg6 16.Bh6!! Bxh6 17.Rxh6 Qg5 {17..Kg7 18.Rh4} 18.Rh2 b5 19.f4 Qg5 20.Bd5 Rxc1 {20.. Bc6 21.Bxc6 Rxc6 22.Rxc6 Nxc6 23.d5 +-} 21.Qxc1 Rc8 22.Qd2 Bc6 {22.. e6 23.Bb3 +-} 23.f5!! gxf5 24.Rh3! Bxd5 25.exd5!! f4! 26.Nxf4 Nb7 27.Nh5! Qf5+ 28. Kg1 Qxd5 29.Qe3!! +- ( followed by Nf4,Qg3 )

You might want to check out this page also:

The Grünfeld Defence Is Rather Ill

Author:  kapilgain [ Mon Apr 18, 2005 6:22 am ]
Post subject: 

fickle wrote:
kapilgain wrote:
a) 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 Nc6 9.Be3 b6 10.h4 Na5 11.Bd3 e5 12.d4xe5 {With a bad pawn structure}

Berliner recommends 12.h5!, not 12.dxe5?, which as you rightly point out leads to a bad pawn structure for White.

12.h5 Qe7 13.Qd2 exd4 14.cxd4 Bb7 15.f3 c5 16.Bh6 Bxh6 17.Qxh6 cxd4 18.e5!

I don't know if he analyses your other line (8...c5). I'll have to take a look at it .. [edit: here it is:]

Berliner's Improvement

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Ne2 O-O 9.Be3 Nc6 10.Rc1! cxd4 11.cxd4 Qa5+ 12.Kf1 Bd7 13.h4 Rfc8 14.h5 Nd8 15.hxg6 hxg6 16.Bh6!! Bxh6 17.Rxh6 Qg5 {17..Kg7 18.Rh4} 18.Rh2 b5 19.f4 Qg5 20.Bd5 Rxc1 {20.. Bc6 21.Bxc6 Rxc6 22.Rxc6 Nxc6 23.d5 +-} 21.Qxc1 Rc8 22.Qd2 Bc6 {22.. e6 23.Bb3 +-} 23.f5!! gxf5 24.Rh3! Bxd5 25.exd5!! f4! 26.Nxf4 Nb7 27.Nh5! Qf5+ 28. Kg1 Qxd5 29.Qe3!! +- ( followed by Nf4,Qg3 )

You might want to check out this page also:

The Grünfeld Defence Is Rather Ill



1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 Nc6 9.Be3 b6 10.h4 Na5 11.Bd3 e5 12.h5 exd4!? Yes, 12...Qe7 is the book move but I personally do not like the position. I would rather suggest the interesting 12...exd4!?. 13.Bxd4 Qg5 14.hxg6 fxg6 15.g3 {15.Rh2 c5 16.Bxg7 Kxg7 17.Rb1 Be6 18.Qc1 Qxc1+ 19.Nxc1 =+} Bg4 16.f4 Bxe2 17.fxg5 Bxd1 18.Rxd1 And White has a wrecked pawn structure with a vulnerable king in the centre.


1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Ne2 O-O 9.Be3 Nc6 10.Rc1! Na5!? 11.Bd3 cxd4 12.cxd4 Nc6!? 13.Rc5 e6 14.Bb1 Bd7 15.d5!? 0-0 was another good option. But the text allows White to play an eventual h4, with the support of the king's rook at the rear. Ne5 16.Bd4 Ng4 17.Bxg7 Kxg7 18.Qb3 b6 19.Rc3 Qh4 20.g3 Qe7 21.h3 Nf6 22.dxe6 {22.Re3 exd5 23.e5! Ne4 24.f3 Nc5 25.Qxd5 Rfd8 26.Qc4 Be6 Or 26...Rac8. -+} Bxe6 And the position is almost equal.

Author:  fickle [ Tue Apr 26, 2005 3:58 pm ]
Post subject: 

kapilgain wrote:
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 Nc6 9.Be3 b6 10.h4 Na5 11.Bd3 e5 12.h5 exd4!? Yes, 12...Qe7 is the book move but I personally do not like the position. I would rather suggest the interesting 12...exd4!?. 13.Bxd4 Qg5 14.hxg6 fxg6 15.g3 {15.Rh2 c5 16.Bxg7 Kxg7 17.Rb1 Be6 18.Qc1 Qxc1+ 19.Nxc1 =+} Bg4 16.f4 Bxe2 17.fxg5 Bxd1 18.Rxd1 And White has a wrecked pawn structure with a vulnerable king in the centre.

:( 12...exd4! does seem to be a big improvement. However, I think White should play 13.cxd4!? to preserve a better pawn structure.

12 ...exd4! 13.cxd4!? c5 14.hxg6 fxg6 15.Rc1 cxd4 16.Nxd4 Bxd4 17.Bxd4 Be6 {17...Qxd4?? 18.Bc4+ 1-0; perhaps Black should consider 14...hxg6!?} 18.Bb1 Rc8 19.Bb2 Nc4 20.Qxd8 Rxd8 21.Bc3 Rf7 22.Bc2 Nd6

Position is finely balanced. White has a passed pawn in the middle and the bishop pair, but his isolated a-pawn is weak. It may be difficult to hold onto the bishops, and the Black rooks may be adequate to deal with White's passed pawn. Looks like a draw. :?:

(I haven't had a chance to take a look at the other variation yet!)

Author:  seifullaah73 [ Mon May 09, 2005 11:43 am ]
Post subject:  BF

Bobby Fischer wrote:
The King's Gambit is busted!


what did he mean by that did he mean that its of no good use any more for white. :?:

Author:  kapilgain [ Mon Jul 03, 2006 4:18 pm ]
Post subject: 

But Fischer himself used to play the Bishop Gambit (3.Bc4) line of the King's Gambit Accepted. Also, he later introduced the solid but very passive Fischer Defense against the KGA for the Black player: 1.e4 e5 2.f4 exf4 3.Nf3 d6. Maybe that's the reason why he claimed that KG had been busted! :roll:

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