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Normal Topic Early ...c5 (Read 3795 times)
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Re: Early ...c5
Reply #4 - 11/13/21 at 16:52:44
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Correction!

23...Qb2 gives the advantage to black according to Stockfish.
  
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Re: Early ...c5
Reply #3 - 11/13/21 at 16:51:06
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yolocounty wrote on 10/05/14 at 18:45:23:
After 1 d4 Nf6 2 c4 g6 3 Nf3 Bg7 4 0-0 g3 5 Bg2 c5 6 0-0!? (avoiding 6 Nc3 cxd4 7 Nxd4 Qc7 8 b3 d5) black has the simple 6 ... cxd4 7 Nxd4 Nc6 8 Nc3 Nxd4 9 Qxd4 d6 10 Q (to h4, d3, or d2) Be6.


ChessPublishing describes this as the old main line. I think the consensus is that white remains better, but the line remains playable for black.

Another option is suggested in "New Weapons in the King's Indian:"
https://forwardchess.com/product/new-weapons-in-the-kings-indian
From the table of contents:
1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c5 5. Bg2 cd4 6. Nd4 O-O 7. Nc3 d6 8. O-O Nc6

8...Nc6!? is not new, but I think interesting. It has not done so well in human games. Is their any hope? Well maybe. Here's a recent game that was pretty wild:

[Event "Titled Tuesday 7th Sept"]
[Site "chess.com INT"]
[Date "2021.09.07"]
[Round "8"]
[White "Erigaisi Arjun (IND)"]
[Black "Fier Alexander Hilario Takeda (BRA)"]
[Result "1-0"]
[ECO "E65"]
[WhiteElo "2567"]
[BlackElo "2569"]

1.Nf3 Nf6 2.c4 c5 3.Nc3 Nc6 4.g3 g6 5.Bg2 Bg7 6.d4 cxd4 7.Nxd4 O-O 8.O-O d6 9.Nxc6 bxc6 10.Bxc6 Rb8 11.Bg2 Qa5 12.Qc2 Bf5 13.e4 Be6 14.b3 Nxe4 15.Nxe4 Bxa1 16.Bg5 Bf5 17.Bxe7 Rfe8 18.Bxd6 Rbd8 19.c5 Bg7 20.Rc1 Qb4 21.Qc4 Qa3 22.Ng5 h6 23.c6 Qxd6 ( 23...Qb2! += ) 24.Qxf7+ Kh8 25.Qxe8+ Rxe8 26.Nf7+ Kh7 27.Nxd6 1-0


  
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Re: Early ...c5
Reply #2 - 11/13/21 at 16:22:03
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yolocounty wrote on 09/29/14 at 20:48:09:
1 d4 Nf6 2 c4 g6 3 Nf3 Bg7 4 g3 0-0 5 Bg2 c5 6 Nc3 cxd4 7 Nxd4 Qc7!?


This is the recommendation in the Dangerous Weapons series, and seems a reasonable option for black to consider.
  
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yolocounty
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Re: Early ...c5
Reply #1 - 10/05/14 at 18:45:23
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No interest?  Here's a follow up:

After 1 d4 Nf6 2 c4 g6 3 Nf3 Bg7 4 0-0 g3 5 Bg2 c5 6 0-0!? (avoiding 6 Nc3 cxd4 7 Nxd4 Qc7 8 b3 d5) black has the simple 6 ... cxd4 7 Nxd4 Nc6 8 Nc3 Nxd4 9 Qxd4 d6 10 Q (to h4, d3, or d2) Be6.

10 ... Be6, with the (generally temporary) sacrifice of the b7 pawn, just seems to solve everything.  White can get a position with b and c pawns against a and d pawns, but it doesn't look promising.

Compared to the adventured of the Panno variation, these "English-like" lines are attractive.
  
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yolocounty
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Early ...c5
09/29/14 at 20:48:09
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So, 2014 has been a big year for this line:

1 d4 Nf6 2 c4 g6 3 Nf3 Bg7 4 g3 0-0 5 Bg2 c5 6 Nc3 cxd4 7 Nxd4 Qc7!?.

(to some extent this is a move order trick, since White can avoid this by 6 0-0 planning to play Nc3 later, if at all.)

The idea, of course, is 8 b3 d5 a la Kasparov-Karpov (Some tournament in 1986-7).  White ends up with a lead in development that is hard to use because the c4 pawn is weak and Black's position is solid.

Thinking of adopting the line, any opinions?

Kramnik's 8 Qd3 (covered in the recent update) is interesting but doesn't appear to go much of anywhere.
  
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