E14

Queen's Indian Defense, with e3

14 named lines in this family, ECO E14. Under each line you get its moves and the sentences it adds that this page has not already printed. A line's own page carries up to its first 4 per-move notes in full.

Main line, after 1. d4, through 5... Bb7, line 1E14

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 b6 5. Nc3 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.

• 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.

Main line, after 1. d4, through 6. c4, line 2E14

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. O-O c5 6. c4

• 2. Nf3 Develops the knight to f3, eyeing d4 and e5. It also props up the d4 pawn. Theory calls this the Knights Variation.

Main line, after 1. d4, through 6. Bd3, line 3E14

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 b6 5. Nc3 Bd6 6. Bd3

Main line, after 1. d4, through 6... Be7, line 4E14

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. O-O c5 6. c4 Be7

Main line, after 1. d4, through 6... g6, line 5E14

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. O-O c5 6. c4 g6

Main line, after 1. d4, through 6... b6, line 6E14

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 Be7 5. Nc3 O-O 6. b3 b6

Main line, after 1. d4, through 6... b6, line 7E14

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 Be7 5. b3 O-O 6. Bd3 b6

Main line, after 1. d4, through 7. Nc3, line 8E14

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. O-O Be7 6. c4 O-O 7. Nc3

Main line, after 1. d4, through 7. e3, line 9E14

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 b6 5. a3 Bxd2+ 6. Qxd2 Bb7 7. e3

White comes out of the line with the bishop pair.

Main line, after 1. d4, through 7... Bb7, line 10E14

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 b6 5. Nc3 Bd6 6. Bd3 O-O 7. O-O Bb7

Main line, after 1. d4, through 8. Bd3, line 11E14

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 Be7 5. b3 O-O 6. Bb2 b6 7. Nbd2 Bb7 8. Bd3

White's queenside bishop takes the long diagonal and Black's queenside bishop takes the long diagonal.

Main line, after 1. d4, through 9. c4, line 12E14

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. Nbd2 c5 6. b3 Be7 7. Bb2 d6 8. O-O O-O 9. c4

Main line, after 1. Nf3, through 9. Bd3, line 13E14

1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. Nc3 Be7 5. d4 O-O 6. b3 b6 7. cxd5 exd5 8. Bb2 Bb7 9. Bd3

An early pawn trade leaves the c-file as White's avenue and the e-file as Black's - both sides get real winning chances down their own file.

• 1. Nf3 Theory calls this the Zukertort Opening.
• 1... d5 Stakes a claim in the centre, controlling e4, and frees the bishop and queen.
• 2. e3 Supports the centre, adding control of d4.
• 2... Nf6 It also props up the d5 pawn.

Main line, after 1. d4, through 9. Nbd2, line 14E14

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. e3 b6 5. b3 Bb7 6. Bd3 Nbd7 7. O-O Bd6 8. Bb2 O-O 9. Nbd2

• 2... d5 Theory calls this the Symmetrical Variation.

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