OPENINGS THEORY
- ECO CODES BASE -


- E33 -



[E33-a] - NID: Nimzo-
Indian: classical, 4...Nc6
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 (TNBF: (three Knights basic formation))


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[E33-b] - NID: Nimzo-
Indian: classical, 4...Nc6
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 (TNBF: (three Knights basic formation)) 5.e3 (WRC:
(White reserved centre))


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[E33-c] - NID: Nimzo-
Indian: classical, 4...Nc6
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 (TNBF: (three Knights basic formation)) 5.e3 (WRC:
(White reserved centre)) d5
(QGLV: c4-d5 (Queen's gambit
lever)) +/=


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[E33-d] - NID: Nimzo-
Indian: classical, 4...Nc6
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 (TNBF: (three Knights basic formation)) 5.e3 (WRC:
(White reserved centre)) e5
(QULV: d4-e5 (Queen's lever)) +/=


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[E33-e] - NID: Nimzo-
Indian: classical, 4...Nc6
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 (TNBF: (three Knights basic formation)) 5.e3 (WRC:
(White reserved centre)) e5
(QULV: d4-e5 (Queen's lever)) 6.d5
Ne7 +/=


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[E33-f] - NID: Nimzo-
Indian: classical, 4...Nc6
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation))


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[E33-g] - NID: Nimzo-
Indian: classical, 4...Nc6
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d5 (QGL)


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[E33-h] - NID: Nimzo-
Indian: classical, 4...Nc6
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d5 (QGL)
6.cxd5 exd5


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[E33-i] - NID: Nimzo-
Indian: classical, 4...Nc6
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d5 (QGL)
6.e3 (WRC: (White reserved centre))


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«»


[E33-j] - NID: Nimzo-
Indian: classical, 4...Nc6
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d5 (QGL)
6.e3 (WRC: (White reserved centre))
0-0 +/-


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[E33-k] - NID: Nimzo-
Indian: classical, 4...Nc6
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) 0-0


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«»


[E33-l] - NID: Nimzo-
Indian: classical, 4...Nc6
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) 0-0
6.e4 (WPC: (White perfect centre))


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[E33-m] - NID: Nimzo-
Indian: classical, 4...Nc6
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) 0-0
6.e4 (WPC: (White perfect centre))
d6 (CEAL: d4,e4-d6,e6 (central
airlock))


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«»


[E33-n] - NID: Nimzo-
Indian: classical, 4...Nc6
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) 0-0
6.e4 (WPC: (White perfect centre))
d6 (CDAL: d4,e4-d6,e6 (central
double airlock)) 7.e5 (KH:
(King's hook)) =


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[E33-o] - NID: Nimzo-
Indian: classical, 4...Nc6
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) 0-0
6.Bg5 (CP=d5,e4 (critical points))


1. «»
«»


[E33-p] - NID: Nimzo-
Indian: classical, 4...Nc6
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) 0-0
6.Bg5 (CP=d5,e4 (critical points))
h6 +/=


1. «»
«»


[E33-q] - NID: Nimzo-
Indian: classical, 4...Nc6
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) 0-0
6.Bg5 (CP=d5,e4 (critical points))
h6 7.Bh4 d6 (BIC: (Black inferior
centre)) +/=


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[E33-r] - NID: Nimzo-Indian:
classical, Milner-Barry
(Zurich) variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d6
(QDAL: (Queen double airlock))


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[E33-s] - NID: Nimzo-Indian:
classical, Milner-Barry
(Zurich) variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d6
(QDAL: (Queen double airlock))
6.Bg5 (CP=d5,e4 (critical points))


1. «»
«»


[E33-t] - NID: Nimzo-Indian:
classical, Milner-Barry
(Zurich) variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d6
(QDAL: (Queen double airlock))
6.Bg5 (CP=d5,e4 (critical points))
h6 7.Bxf6 Qxf6


1. «»
«»


[E33-u] - NID: Nimzo-Indian:
classical, Milner-Barry
(Zurich) variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d6
(QDAL: (Queen double airlock))
6.Bg5 (CP=d5,e4 (critical points))
h6 7.Bxf6 Qxf6 8.e3 0-0


1. «»
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[E33-v] - NID: Nimzo-Indian:
classical, Milner-Barry
(Zurich) variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d6
(QDAL: (Queen double airlock))
6.a3 (Bxc3+)


1. «»
«»


[E33-w] - NID: Nimzo-Indian:
classical, Milner-Barry
(Zurich) variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d6
(QDAL: (Queen double airlock))
6.a3 Bxc3+ 7.Qxc3 (Qe7) +/=


1. «»
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[E33-x] - NID: Nimzo-Indian:
classical, Milner-Barry
(Zurich) variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d6
(QDAL: (Queen double airlock))
6.a3 Bxc3+ 7.Qxc3 Qe7 8.b4 +/=


1. «»
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[E33-y] - NID: Nimzo-Indian:
classical, Milner-Barry
(Zurich) variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d6
(QDAL: (Queen double airlock))
6.a3 Bxc3+ 7.Qxc3 0-0 +/=


1. «»
«»


[E33-z] - NID: Nimzo-Indian:
classical, Milner-Barry
(Zurich) variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d6
(QDAL: (Queen double airlock))
6.a3 Bxc3+ 7.Qxc3 a5 +/=


1. «»
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[E33-a*] - NID: Nimzo-Indian:
classical, Milner-Barry
(Zurich) variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d6
(QDAL: (Queen double airlock))
6.Bd2 +/=


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«»


[E33-b*] - NID: Nimzo-Indian:
classical, Milner-Barry
(Zurich) variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d6
(QDAL: (Queen double airlock))
6.Bd2 e5 (QULV: d4-e5 (Queen's
lever)) +/=


1. «»
«»


[E33-c*] - NID: Nimzo-Indian:
classical, Milner-Barry
(Zurich) variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d6
(QDAL: (Queen double airlock))
6.Bd2 Qe7 +/=


1. «»
«»


[E33-d*] - NID: Nimzo-Indian:
classical, Milner-Barry
(Zurich) variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d6
(QDAL: (Queen double airlock))
6.Bd2 Qe7 7.a3 Bxc3+ +/=


1. «»
«»


[E33-e*] - NID: Nimzo-Indian:
classical, Milner-Barry
(Zurich) variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d6
(QDAL: (Queen double airlock))
6.Bd2 0-0 +/=


1. «»
«»


[E33-f*] - NID: Nimzo-Indian:
classical, Milner-Barry
(Zurich) variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d6
(QDAL: (Queen double airlock))
6.Bd2 0-0 7.a3 Bxc3+ +/=


1. «»
«»


[E33-g*] - NID: Nimzo-Indian:
classical, Milner-Barry
(Zurich) variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d6
(QDAL: (Queen double airlock))
6.Bd2 0-0 7.a3 Bxc3+ 8.Bxc3 a5 +/=


1. «»
«»


[E33-h*] - NID: Nimzo-Indian:
classical, Milner-Barry
(Zurich) variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.Qc2 Nc6 5.Nf3 (FNBF: (four
Knights basic formation)) d6
(QDAL: (Queen double airlock))
6.Bd2 0-0 7.a3 Bxc3+ 8.Bxc3 Qe7 +/=


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