OPENINGS THEORY
- ECO CODES BASE -


- E30 -



[E30-a] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5


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[E30-b] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 Qe7


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[E30-c] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 Bxc3+ 5.bxc3 (FM: (forced
move))


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[E30-d] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 Bxc3+ 5.bxc3 (FM: (forced move)) Qe7


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[E30-e] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 Bxc3+ 5.bxc3 (FM: (forced move)) d6 (QDAL: c4,d4-d6,e6
(Queen double airlock)+(WID: e5)


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[E30-f] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 Bxc3+ 5.bxc3 (FM: (forced move)) d6 (QDAL: c4,d4-d6,e6
(Queen double airlock)+(WID: e5)
6.e3 +/=


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[E30-g] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 c5 (TALV: c5-d4 (Tarrasch's
lever))


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[E30-h] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 c5 (TALV: c5-d4 (Tarrasch's
lever)) 5.d5 (KOLV: d5-e6 (Korchnoi
lever))


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[E30-i] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 c5 (TALV: c5-d4 (Tarrasch's
lever)) 5.d5 (KOLV: d5-e6 (Korchnoi
lever)) exd5 (6.cxd5 d6)


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[E30-j] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 c5 (TALV: c5-d4 (Tarrasch's
lever)) 5.d5 (KOLV: d5-e6 (Korchnoi
lever)) exd5 6.cxd5 h6


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[E30-k] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 c5 (TALV: c5-d4 (Tarrasch's
lever)) 5.d5 (KOLV: d5-e6 (Korchnoi
lever)) Nxd5?! 6.Bxd8 Nxc3 7.Qb3
Ne4+ 8.Kd1 Nxf2+ +/=


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[E30-l] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 c5 (TALV: c5-d4 (Tarrasch's
lever)) 5.d5 (KOLV: d5-e6 (Korchnoi
lever)) 0-0


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[E30-m] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 c5 (TALV: c5-d4 (Tarrasch's
lever)) 5.d5 (KOLV: d5-e6 (Korchnoi
lever)) 0-0 6.Nf3 (b5 7.e3)


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[E30-n] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move))


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[E30-o] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bd2


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[E30-p] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bxf6 (Qxf6)


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[E30-q] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4


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[E30-r] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 g5 6.Bg3


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[E30-s] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 g5 6.Bg3 Ne4 +/=


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[E30-t] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 Bxc3+ +/=


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[E30-u] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) (6.Qa4?!) +/=


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[E30-v] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 +/=


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«»


[E30-w] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5
Nxd5?! +/=


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«»


[E30-x] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5
Nxd5?! 7.Bxd8 Nxc3 8.Qb3 Ne4+
9.Qxb4 cxb4 +/=


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[E30-y] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5
Nxd5?! 7.Bxd8 Nxc3 8.Qb3 Ne4+
9.Kd1 Nxf2+ +/=


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[E30-z] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 Qa5


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[E30-a*] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 Qa5
7.Bxf6 gxf6 /unclear


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[E30-b*] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 Qa5
7.Bxf6 gxf6 8.Qc2 (d6) +/-


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[E30-c*] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 g5


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«»


[E30-d*] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 g5
7.Bg3 Ne4 +/=


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[E30-e*] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 g5
7.Bg3 Ne4 8.Qc2 +/=


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[E30-f*] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 Bxc3+
7.bxc3 (d6)


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[E30-g*] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 Bxc3+
7.bxc3 e5


1. «»
«»


[E30-h*] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 Bxc3+
7.bxc3 e5 8.d6!? Nc6


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«»


[E30-i*] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 0-0


1. «»
«»


[E30-j*] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 0-0
7.Nf3 (Bxc3+)


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«»


[E30-k*] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 0-0
7.Nf3 d6


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«»


[E30-l*] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 0-0
7.Nf3 exd5


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«»


[E30-m*] - NID: Nimzo-
Indian: Leningrad variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 0-0
7.Nf3 b5!? /unclear


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«»


[E30-n*] - NID: Nimzo-
Indian: Leningrad variation,
6...b5 gambit
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 b5
(BL : b5-c4 (Benko's lever))


1. «»
«»


[E30-o*] - NID: Nimzo-
Indian: Leningrad variation,
6...b5 gambit
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 b5
(BL : b5-c4 (Benko's lever)) 7.dxe6
fxe6


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[E30-p*] - NID: Nimzo-
Indian: Leningrad variation,
6...b5 gambit
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 b5
(BL : b5-c4 (Benko's lever)) 7.dxe6
fxe6 8.cxb5 0-0


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[E30-q*] - NID: Nimzo-
Indian: Leningrad variation,
6...b5 gambit
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 b5
(BL : b5-c4 (Benko's lever)) 7.dxe6
fxe6 8.cxb5 d5


1. «»
«»


[E30-r*] - NID: Nimzo-
Indian: Leningrad variation,
6...b5 gambit
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 b5
(BL : b5-c4 (Benko's lever)) 7.Rc1


1. «»
«»


[E30-s*] - NID: Nimzo-
Indian: Leningrad variation,
6...b5 gambit
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 b5
(BL : b5-c4 (Benko's lever)) 7.Rc1
bxc4 =


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[E30-t*] - NID: Nimzo-
Indian: Leningrad variation,
6...b5 gambit
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 b5
(BL : b5-c4 (Benko's lever)) 7.Rc1
bxc4 8.e4 exd6 =


1. «»
«»


[E30-u*] - NID: Nimzo-
Indian: Leningrad variation,
6...b5 gambit
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 b5
(BL : b5-c4 (Benko's lever)) 7.e4


1. «»
«»


[E30-v*] - NID: Nimzo-
Indian: Leningrad variation,
6...b5 gambit
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 b5
(BL : b5-c4 (Benko's lever)) 7.e4
d6


1. «»
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[E30-w*] - NID: Nimzo-
Indian: Leningrad variation,
6...b5 gambit
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 b5
(BL : b5-c4 (Benko's lever)) 7.e4
d6 8.Qc2 0-0 =


1. «»
«»


[E30-x*] - NID: Nimzo-
Indian: Leningrad variation,
6...b5 gambit
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 b5
(BL : b5-c4 (Benko's lever)) 7.e4
g5 8.Bg3 (Nxe4) =


1. «»
«»


[E30-y*] - NID: Nimzo-
Indian: Leningrad variation,
6...b5 gambit
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 b5
(BL : b5-c4 (Benko's lever)) 7.e4
g5 8.Bg3 Nxe4 9.Be5 =


1. «»
«»


[E30-z*] - NID: Nimzo-
Indian: Leningrad variation,
6...b5 gambit
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Bg5 h6 (RUM: (relative unpin
move)) 5.Bh4 c5 (TL) 6.d5 b5
(BL : b5-c4 (Benko's lever)) 7.e4
g5 8.Bg3 Nxe4 9.Be5 0-0 10.Qh5 =


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