Queen's Indian Defense, with e3 · E14
Main line, after 1. d4, through 7... Bb7, line 10
1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 b6 5. Nc3 Bd6 6. Bd3 O-O 7. O-O Bb7
Black's queenside bishop takes the long diagonal. ...b6 and ...Bb7 control e4 from the flank: a sound, flexible sister of the Nimzo where piece pressure replaces pawn contact.
The first 4 moves, explained
- 1. d4 Stakes a claim in the centre, controlling e5, and frees the bishop and queen.
- 1... Nf6 Develops the knight to f6, eyeing d5 and e4.
- 2. c4 Fights for d5 from the flank - contesting the centre without committing a centre pawn.
- 2... e6 Supports the centre, adding control of d5.
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Where this fits
This line is one of 14 in the Queen's Indian Defense, with e3. If you want to know where your own games leave it, the guide on leaving theory explains how that is found.