OPENINGS THEORY
- ECO CODES BASE -


- E48 -



[E48-a] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
+(6.Nf3 (see: E51)) =/unclear


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[E48-b] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.f3?! =/+


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[E48-c] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Bd2 (WIBF: d2,d3 (White interme-
diate Bishops formation)) =/unclear


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[E48-d] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Bd2 (WIBF: d2,d3 (White interme-
diateBishops formation)) c5 (TA:
c4,d4 -c5,d5 (Tarrasch's anvil))
=/unclear


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[E48-e] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Qc2 +/=


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[E48-f] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Qc2 c5 (TA: (Tarrasch's anvil))
+/=


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[E48-g] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 +/=


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[E48-h] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 exd5 +/=


1. «»
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[E48-i] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 exd5 7.Nge2 (BWS: (Black
wide spectrum)) +/=


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[E48-j] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 exd5 7.Nge2 (BWS: (Black
wide spectrum)) Nc6 +/=


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[E48-k] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 exd5 7.Nge2 (BWS: (Black
wide spectrum)) b6 +/=


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[E48-l] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 exd5 7.Nge2 (BWS: (Black
wide spectrum)) Bd6 (10.f3) +/=


1. «»
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[E48-m] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 exd5 7.Nge2 (BWS: (Black
wide spectrum)) c6 +/=


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[E48-n] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 exd5 7.Nge2 (BWS: (Black
wide spectrum)) c6 8.0-0 +/=


1. «»
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[E48-o] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 exd5 7.Nge2 (BWS: (Black
wide spectrum)) c6 8.0-0 Re8 +/=


1. «»
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[E48-p] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 exd5 7.Nge2 (BWS: (Black
wide spectrum)) c6 8.0-0 Re8
9.f3 +/=


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[E48-q] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 exd5 7.Nge2 (BWS: (Black
wide spectrum)) c5 (TALV: d4-c5
(Tarrasch's lever)) =


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[E48-r] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 exd5 7.Nge2 (BWS: (Black
wide spectrum)) c5 (TALV: d4-c5
(Tarrasch's lever)) 8.0-0 =


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[E48-s] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 exd5 7.Nge2 (BWS: (Black
wide spectrum)) c5 (TALV: d4-c5
(Tarrasch's lever)) 8.0-0 Nc6 =


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[E48-t] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 exd5 7.Nge2 (BWS: (Black
wide spectrum)) c5 (TALV: d4-c5
(Tarrasch's lever)) 8.a3 =


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[E48-u] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 exd5 7.Nge2 (BWS: (Black
wide spectrum)) Re8 (OF: (open
file)) =


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[E48-v] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 exd5 7.Nge2 (BWS: (Black
wide spectrum)) Re8 (OF: (open
file)) 8.Bd2 (WIBF: d2,d3) =


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[E48-w] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 exd5 7.Nge2 (BWS: (Black
wide spectrum)) Re8 (OF: (open
file)) 8.0-0 (Bf8) =


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[E48-x] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.cxd5 exd5 7.Nge2 (BWS: (Black
wide spectrum)) Re8 (OF: (open
file)) 8.0-0 Bd6 =


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[E48-y] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 =/unclear


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[E48-z] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 Nbd7 (7.0-0) =/unclear


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[E48-a*] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 Re8 =/unclear


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[E48-b*] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 Nc6 (7.0-0) =/unclear


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[E48-c*] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 b6 (7.a3) =/unclear


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[E48-d*] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 b6 7.cxd5 =/unclear


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[E48-e*] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 b6 7.0-0 =/unclear


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[E48-f*] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 b6 7.0-0 Bb7 =/unclear


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[E48-g*] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 dxc4 7.Bxc4 =/unclear


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[E48-h*] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 dxc4 7.Bxc4 c5 =


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[E48-i*] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 dxc4 7.Bxc4 e5 (QULV: d4-e5
Queen lever)) =


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[E48-j*] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 dxc4 7.Bxc4 e5 (QULV: d4-e5
Queen lever)) 8.a3 =


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[E48-k*] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 dxc4 7.Bxc4 e5 (QULV: d4-e5
Queen lever)) 8.0-0 =


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[E48-l*] - NID: Nimzo-Indian:
5.Bd3 d5 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 dxc4 7.Bxc4 e5 (QULV: d4-e5
Queen lever)) 8.0-0 Nc6 =


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[E48-m*] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) =/unclear


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[E48-n*] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.Qc2 =/unclear


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[E48-o*] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.a3 =/unclear


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[E48-p*] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.a3 dxc4
=/unclear


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[E48-q*] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.a3 Fxc3+
=/unclear


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[E48-r*] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.a3 cxd4
axb4?! =/+


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[E48-s*] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.a3 cxd4
exd4 =


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[E48-t*] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.0-0 (b6) =


1. «»
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[E48-u*] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.0-0 dxc4 =


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[E48-v*] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.0-0 cxd4 =


1. «»
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[E48-w*] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.0-0 Nc6 =


1. «»
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[E48-x*] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.0-0 Nc6
8.cxd5 =


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[E48-y*] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.0-0 Nc6
8.a3 =


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[E48-z*] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.0-0 Nc6
8.a3 Bxc3 9.bxc3 =


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[E48-a**] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.cxd5 +/=


1. «»
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[E48-b**] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.cxd5 exd5 +/=


1. «»
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[E48-c**] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.cxd5 cxd4
(8.exd4) +/=


1. «»
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[E48-d**] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.cxd5 cxd4
8.exd4 Qxd5 +/=


1. «»
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[E48-e**] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.cxd5 cxd4
8.exd4 Qxd5 9.0-0 +/=


1. «»
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[E48-f**] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.cxd5 cxd4
8.exd4 Qxd5 9.0-0 Nc6 +/=


1. «»
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[E48-g**] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.cxd5 cxd4
8.exd4 Qxd5 9.0-0 Nc6 10.a3 +/=


1. «»
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[E48-h**] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.cxd5 cxd4
8.exd4 Qxd5 9.0-0 Nc6 10.Bc2 +/=


1. «»
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[E48-i**] - NID: Nimzo-Indian:
Von Minckwitz-Winawer variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.Nge2 c5 (TA: c4,d4-c5,d5
(Tarrasch anvil)) 7.cxd5 cxd4
8.exd4 Qxd5 9.0-0 Nc6 10.Bc2
Re8 +/=


1. «»
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[E48-j**] - NID: Nimzo-Indian:
5.Bd3 d5 6.a3 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.a3 (Bxc3+ bxc3 (see: E49)) =


1. «»
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[E48-k**] - NID: Nimzo-Indian:
5.Bd3 d5 6.a3 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.a3 Be7 (7.Nf3 (see: E51)) =


1. «»
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[E48-l**] - NID: Nimzo-Indian:
5.Bd3 d5 6.a3 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.a3 dxc4 7.Bxh7+ (THC: (thematic
combination)) =


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[E48-m**] - NID: Nimzo-Indian:
5.Bd3 d5 6.a3 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.a3 dxc4 7.Bxc4 (Bxc3+) =


1. «»
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[E48-n**] - NID: Nimzo-Indian:
5.Bd3 d5 6.a3 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.a3 dxc4 7.Bxc4 Bd6 =


1. «»
«»


[E48-o**] - NID: Nimzo-Indian:
5.Bd3 d5 6.a3 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.a3 dxc4 7.Bxc4 Bd6 8.Nf3
(TNBF: (three Knights basic
formation)) =


1. «»
«»


[E48-p**] - NID: Nimzo-Indian:
5.Bd3 d5 6.a3 variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.e3 0-0 5.Bd3 d5 (QGL : c4-d5)
6.a3 dxc4 7.Bxc4 Bd6 8.Nf3 Nc6
(FNBF: (four Knights basic
formation)) =


1. «»
«»

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