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Chess Opening Theory/1. d4/1...Nf6/2. c4/2...g6

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King's Indian Defence
a b c d e f g h
8a8 black rookb8 black knightc8 black bishopd8 black queene8 black kingf8 black bishopg8 black kingh8 black rook8
7a7 black pawnb7 black pawnc7 black pawnd7 black pawne7 black pawnf7 black pawng7 black kingh7 black pawn7
6a6 black kingb6 black kingc6 black kingd6 black kinge6 black kingf6 black knightg6 black pawnh6 black king6
5a5 black kingb5 black kingc5 black kingd5 black kinge5 black kingf5 black kingg5 black kingh5 black king5
4a4 black kingb4 black kingc4 white pawnd4 white pawne4 black kingf4 black kingg4 black kingh4 black king4
3a3 black kingb3 black kingc3 black kingd3 black kinge3 black kingf3 black kingg3 black kingh3 black king3
2a2 white pawnb2 white pawnc2 black kingd2 black kinge2 white pawnf2 white pawng2 white pawnh2 white pawn2
1a1 white rookb1 white knightc1 white bishopd1 white queene1 white kingf1 white bishopg1 white knighth1 white rook1
a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)

rnbqkb1r/pppppp1p/5np1/8/2PP4/8/PP2PPPP/RNBQKBNR w

Moves: 1.d4 Nf6 2.c4 g6
ECO code: E60-E99
Parent: Indian Defence

King's Indian Defence

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2...g6

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With 2...g6, Black commits to a hypermodern development strategy. They will fianchetto their dark-squared bishop with ...Bg7 and attempt to exert pressure on White's center with pieces and timely pawn breaks. After 2...g6 certain themes are already evident. Preservation of the dark-square bishop will be vital for Black's safety after castling kingside. 2...g6 weakens the dark squares around Black's king; without the dark-square bishop to control squares like f6 and h6, these weaknesses can be fatal. The g7 bishop is not purely a defensive piece, however. White must be aware that opening the center by pawn exchanges may very well unleash the bishop's power by giving it a clear diagonal towards White's queenside.

2...g6 will almost certainly lead to either a King's Indian Defence or a Grunfeld Defence.

In the King's Indian Defence, Black castles kingside as quickly as possible with a fianchettoed structure, in doing so it will allow White to have pawn presence in the centre. Black will then do their best to claim as much as they can back with their own pawns, often chipping away at the residual White presence. A strategist's playground.

While in the Grunfeld, Black uses 2...g6 to wait for Nc3 by White where he will follow with ...d5. Black's play will be the dark diagonal, usually with the help of the move ...c5, while White's advantage will be his broad centre - Hypermodernism exemplified.

Theory table

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For explanation of theory tables, see theory table and for notation, see algebraic notation..

1. d4 Nf6 2. c4 g6

3 4 5 6 7
Nc3
Bg7		 e4
d6		 Nf3
O-O		 Be2
e5		 O-O
Nc6		 ∞
Grunfeld Defence ...
d5		 cxd5
Nxd5		 e4
Nxc3		 bxc3
Bg7
=
Nf3
Bg7		 g3
O-O		 Bg2
d6		 O-O
Nc6		 Nc3
a6		 ∞
g3
Bg7		 Bg2
O-O		 Nc3
d6		 Nf3
...		 ...
...		 ∞
f3
Bg7		 e4
d6		 Nc3
O-O		 Be3
Nc6		 Nge2
a6		 ∞
...
e5		 dxe5
Nh5


∞

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Wikipedia has related information at King's Indian Defence

References

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  • Nunn's Chess Openings. 1999. John Nunn (Editor), Graham Burgess, John Emms, Joe Gallagher. ISBN 1-8574-4221-0.
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