Chess Opening Theory/1. d4/1...Nf6/2. c4/2...e6/3. Nf3/3...b6/4. g3

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< Chess Opening Theory‎ | 1. d4‎ | 1...Nf6‎ | 2. c4‎ | 2...e6‎ | 3. Nf3‎ | 3...b6
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Queen's Pawn Opening
a b c d e f g h
8 a8 b8 c8 d8 e8 f8 g8 h8 8
7 a7 b7 c7 d7 e7 f7 g7 h7 7
6 a6 b6 c6 d6 e6 f6 g6 h6 6
5 a5 b5 c5 d5 e5 f5 g5 h5 5
4 a4 b4 c4 d4 e4 f4 g4 h4 4
3 a3 b3 c3 d3 e3 f3 g3 h3 3
2 a2 b2 c2 d2 e2 f2 g2 h2 2
1 a1 b1 c1 d1 e1 f1 g1 h1 1
a b c d e f g h
Position in Forsyth-Edwards Notation(FEN)


Queen's Indian Defense[edit]

4. g3[edit]

With this move, White decides to challenge the h1-a8 diagonal immediately and fianchetto his own light-squared bishop to counter black's.

Black can now play:

  • 4...Bb7, a standard developing move. White can then respond with Bg2 and Nc3.
  • 4...Ba6, attacking the c-pawn. This is a bit of a nuisance for white, who cannot comfortably defend the pawn with the natural e2-e3 because the bishop is already committed to g2.
  • 4...Bb4+, echoing the Bogo-Indian and Nimzo-Indian defences. White can interpose with the bishop or knight.

There are other options available, though these are less likely to be encountered:

  • 4...c5, immediately challenging the (central) d-pawn. This leads to pawn structures specific to the Benoni or to variations with a late c5 of the Queen's Indian, if both sides choose to neglect this central challenge and continue to develop
  • 4...c6, leads to a Closed Catalan variation after Black's immediate 5...d5 follow-up

Theory table[edit]

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

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3


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