Queen's indian defense

Its ECO code is from E12-19
[Black "E12"]{ Queen's Indian Defence}
1.d4 Nf6 2.c4 e6 3.Nf3 b6

{E12 Queen's Indian Defence
Miles Variation}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Bf4

{E12 Queen's Indian Defence
Petrosian System}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3

{E12 Queen's Indian Defence
4.Nc3}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3

{E12 Queen's Indian Defence
4.Nc3, Botvinnik Variation}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.Bg5 h6 6.Bh4 g5 7.Bg3 Nh5

[Black "E13"]{ Queen's Indian Defence
4.Nc3, Main line}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.Bg5 h6 6.Bh4 Bb4

[Black "E14"]{ Queen's Indian Defence
4.e3}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3

{E14 Queen's Indian Defence
Averbakh Variation}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb7 5.Bd3 c5 6.O-O Be7 7.b3 O-O 8.Bb2 cxd4 9.Nxd4

[Black "E15"]{ Queen's Indian Defence
4.g3}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3

{E15 Queen's Indian Defence
Nimzovich Variation}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6

{E15 Queen's Indian Defence
4.g3 Bb7}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7

{E15 Queen's Indian Defence
Rubinstein Variation}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 c5 6.d5 exd5 7.Nh4

{E15 Queen's Indian Defence
Buerger Variation}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 c5 6.d5 exd5 7.Ng5

[Black "E16"]{ Queen's Indian Defence
Capablanca Variation}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4

{E16 Queen's Indian Defence
Yates Variation}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4 6.Bd2 a5

{E16 Queen's Indian Defence
Riumin Variation}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4 6.Bd2 Be7

[Black "E17"]{ Queen's Indian Defence
5.Bg2 Be7}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7

{E17 Queen's Indian Defence
Anti-Queen's Indian System}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3

{E17 Queen's Indian Defence
Opovcensky Variation}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 Ne4 7.Bd2

{E17 Queen's Indian Defence
old Main line, 6.O-O}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O

{E17 Queen's Indian Defence
Euwe Variation}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.b3

[Black "E18"]{ Queen's Indian Defence
old Main line, 7.Nc3}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3

[Black "E19"]{ Queen's Indian Defence
old Main line, 9.Qxc3}
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Qc2 Nxc3 9.Qxc3

Good

good collection guys