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OPENINGS THEORY
- ECO CODES BASE -
- E12 -
[E12-a] - QID: Queen's
Indian defence
1.d4 Nf6 2.c4 e6 3.Nf3 b6
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[E12-b] - QID: Queen's
Indian defence
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nbd2
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[E12-c] - QID: Queen's
Indian: Miles variation
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Bf4
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[E12-d] - QID: Queen's
Indian: Miles variation
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Bf4 Bb7
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[E12-e] - QID: Queen's
Indian: Miles variation
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Bf4 Bb7 5.Nbd2 c5 (TL:
(Tarrasch's lever)) =/unclear
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[E12-f] - QID: Queen's
Indian: Miles variation
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Bf4 Bb7 5.Nbd2 c5 (TL:
(Tarrasch's lever)) 6.dxc5
Bxc5 7.e3 =/unclear
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[E12-g] - QID: Queen's
Indian: Miles variation
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Bf4 Bb7 5.Nbd2 c5 (TL:
(Tarrasch's lever)) 6.dxc5
Bxc5 7.e3 0-0 8.Be2 d5 (QGL:
(Queen's gambit lever)) /unclear
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[E12-h] - Queen's
Indian: Petrosian system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.a3 (WID: counter Bb4)
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[E12-i] - Queen's
Indian: Petrosian system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.a3 (WID: counter Bb4) c5 (TL:
(Tarrasch's lever)) Ba6!?
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[E12-j] - QID: Queen's
Indian: 4.Bg5 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Bg5
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[E12-k] - QID: Queen's
Indian: 4.Bg5 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Bg5 Be7
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[E12-l] - QID: Queen's
Indian: 4.Bg5 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Bg5 Bb4+
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[E12-m] - QID: Queen's
Indian: 4.Bg5 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Bg5 h6 (5.Bh4)
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[E12-n] - QID: Queen's
Indian: 4.Bg5 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Bg5 Bb7 5.e3 h6 =
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[E12-o] - QID: Queen's
Indian: 4.Nc3 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3
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[E12-p] - QID: Queen's
Indian: 4.Nc3 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 c5? (TL) d5! +/-
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[E12-q] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical
point)) =
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[E12-r] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical
point)) 5.g3 =
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[E12-s] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical
point)) 5.Qc2 =
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[E12-t] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical
point)) 5.Qc2 c5 (TL) =
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[E12-u] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical
point)) 5.Qc2 c5 (TL) 6.dxc5
Bxc5 =
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[E12-v] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical
point)) 5.Qc2 c5 (TL) 6.e4
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[E12-w] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical
point)) 5.a3 =
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[E12-x] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical
point)) 5.a3 Be7 =
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[E12-y] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical
point)) 5.a3 Be7 6.d5 (exd5)
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[E12-z] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical point))
5.a3 Ne4 (SP: (strategic position)) =
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[E12-a*] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical point))
5.a3 d5 (QGL: (Queen's gambit
lever))
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[E12-b*] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical point))
5.a3 d5 (QGL: (Queen's gambit
lever)) 6.Bg5 +/=
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[E12-c*] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical point))
5.a3 d5 (QGL: (Queen's gambit
lever)) 6.cxd5 +/=
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[E12-d*] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical point))
5.Bg5 (RPIM:: relative pin move))
+(CP=d5 (critical point))
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[E12-e*] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical point))
5.Bg5 (RPIM:: relative pin move))
+(CP=d5 (critical point))
Bb4 (APIM: (absolute pin move))+
(CP=d5 (critical point)) =
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[E12-f*] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical point))
5.Bg5 (RPIM:: relative pin move))
+(CP=d5 (critical point)) Be7 =
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[E12-g*] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical point))
5.Bg5 (RPIM:: relative pin move))
+(CP=d5 (critical point))
h6 =/unclear
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[E12-h*] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical point))
5.Bg5 (RPIM:: relative pin move))
+(CP=d5 (critical point))
h6 6.Bxf6 Qxf6 =/unclear
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[E12-i*] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical point))
5.Bg5 (RPIM:: relative pin move))
+(CP=d5 (critical point))
h6 6.Bh4 =/unclear
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[E12-j*] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical point))
5.Bg5 (RPIM:: relative pin move))
+(CP=d5 (critical point))
h6 6.Bh4 g5 7.Bg3 =/unclear
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[E12-k*] - QID: Queen's
Indian: 4.Nc3, Botvinnik variation
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical point))
5.Bg5 (RPIM:: relative pin move))
+(CP=d5 (critical point))
h6 6.Bh4 g5 7.Bg3 Nh5 =/unclear
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[E12-l*] - QID: Queen's
Indian: 4.Nc3, Botvinnik variation
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical point))
5.Bg5 (RPIM:: relative pin move))
+(CP=d5 (critical point))
h6 6.Bh4 g5 7.Bg3 Nh5 8.Qc2 (FL:
(free line)) /unclear
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[E12-m*] - QID: Queen's
Indian: 4.Nc3, Botvinnik variation
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical point))
5.Bg5 (RPIM:: relative pin move))
+(CP=d5 (critical point))
h6 6.Bh4 g5 7.Bg3 Nh5 8.Qc2 (FL:
(free line)) Nxg3 9.hxg3 /unclear
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[E12-n*] - QID: Queen's
Indian: 4.Nc3 Bb7 system
1.d4 Nf6 2.c4 e6 3.Nf3 b6
4.Nc3 Bb7 (CP=d5 (critical point))
5.Bg5 (RPIM:: relative pin move))
+(CP=d5 (critical point))
h6 6.Bh4 Be7 =/unclear
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