OPENINGS THEORY
- ECO CODES BASE -


- E24 -



[E24-a] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)


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[E24-b] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
Nc6 +/-


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[E24-c] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
d6 (BLC: (Black lower centre))
+/-


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[E24-d] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
d6 (BLC: (Black lower centre))
6.Qc2 (FL: (free line)) +/=


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[E24-e] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
d6 (BLC: (Black lower centre))
6.Qc2 (FL: (free line)) Nc6 +/=


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[E24-f] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
d6 (BLC: (Black lower centre))
6.Qc2 (FL: (free line)) Nc6 +/=
7.e4 (TM: (thematic move)


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[E24-g] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
d6 (BLC: (Black lower centre))
6.f3 e5 +/=


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[E24-h] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
d5 (QGLV: (Queen's gambit lever))


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[E24-i] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
d5 (QGLV: (Queen's gambit lever))
6.Bg5


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[E24-j] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
d5 (QGLV: (Queen's gambit lever))
6.Bg5 c5 (TA: (Tarrasch's anvil))


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[E24-k] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
Ne4 (ACM: (active move))


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[E24-l] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
Ne4 (ACM: (active move)) 6.Nh3
(TRA= Nxc3?? 7.Qc2 +- (trap))


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[E24-m] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
Ne4 (ACM: (active move)) 6.Nh3
(TR=Nxc3?? 7.Qc2 +- (trap)) c5
(TL=c5-d4 (Tarrasch's lever))


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[E24-n] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
Ne4 (ACM: (active move)) 6.Qc2


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[E24-o] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
Ne4 (ACM: (active move)) 6.Qc2
d5?!


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[E24-p] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
Ne4 (ACM: (active move)) 6.Qc2
f5 =


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[E24-q] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
Ne4 (ACM: (active move)) 6.Qc2
f5 7.f3?! Qh4+ 8.g3 Nxg3 =/+


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[E24-r] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
Ne4 (ACM: (active move)) 6.Qc2
f5 7.f3?! Qh4+ 8.g3 Nxg3 =/+
9.hxg3 (MSA: (material sacrifice))
Qxh1 10.Nh3 d6 11.Kf2 e5 12.Bg2
Qh2 13.Bf4 exf4 =/+


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[E24-s] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
Ne4 (ACM: (active move)) 6.Qc2
f5 7.Nh3 0-0 =


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[E24-t] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4)
Ne4 (ACM: (active move)) 6.Qc2
f5 7.e3 b6


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[E24-u] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) b6


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[E24-v] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) b6
6.f3!?


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[E24-w] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) b6
6.f3!? d5 (QGLV: c4-d5 (Queen's
gambit lever)) +/=


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[E24-x] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) b6
6.f3!? Ba6


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[E24-y] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) b6
6.f3!? Ba6 7.e4 d5


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[E24-z] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) b6
6.f3!? Ba6 7.e4 Nc6


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[E24-a*] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) c5
(TALV: c5-d4 (Tarrasch lever))


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[E24-b*] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) c5
(TALV: c5-d4 (Tarrasch lever)) 6.Qc2
(SP: (strategic position))


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[E24-c*] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) c5
(TALV: c5-d4 (Tarrasch lever)) 6.Qc2
(SP: (strategic position)) Nc6


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[E24-d*] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) c5
(TALV: c5-d4 (Tarrasch lever)) 6.f3!
(WID: e4 + counter Ne4) /unclear


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[E24-e*] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) c5
(TALV: c5-d4 (Tarrasch lever)) 6.f3!
(WID: e4 + counter Ne4) d6 (BLC:
(Black lower centre)) /unclear


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[E24-f*] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) c5
(TALV: c5-d4 (Tarrasch lever)) 6.f3!
(WID: e4 + counter Ne4) d5! (TA:
(Tarrasch anvil)) /unclear


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[E24-g*] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) c5
(TALV: c5-d4 (Tarrasch lever)) 6.f3!
(WID: e4 + counter Ne4) d5! (TA:
(Tarrasch anvil)) 7.e3 /unclear


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[E24-h*] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) c5
(TALV: c5-d4 (Tarrasch lever)) 6.f3!
(WID: e4 + counter Ne4) d5! (TA:
(Tarrasch anvil)) 7.e3 0-0 /unclear


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[E24-i*] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) c5
(TALV: c5-d4 (Tarrasch lever)) 6.f3!
(WID: e4 + counter Ne4) d5! (TA:
(Tarrasch anvil)) 7.e3 0-0 8.Bd3
cxd4 =/+


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[E24-j*] - NID: Nimzo-
Indian: Samisch variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) c5
(TALV: c5-d4 (Tarrasch lever)) 6.f3!
(WID: e4 + counter Ne4) d5! (TA:
(Tarrasch anvil)) 7.e3 0-0 8.cxd5 =


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[E24-k*] - NID: Nimzo-Indian
Samisch, Botvinnik variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) c5
(TALV: c5-d4 (Tarrasch lever)) 6.f3!
(WID: e4 + counter Ne4) d5! (TA:
(Tarrasch anvil)) 7.e3 0-0 8.cxd5
Nxd5 /unclear


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[E24-l*] - NID: Nimzo-Indian
Samisch, Botvinnik variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) c5
(TALV: c5-d4 (Tarrasch lever)) 6.f3!
(WID: e4 + counter Ne4) d5! (TA:
(Tarrasch anvil)) 7.e3 0-0 8.cxd5
Nxd5 9.Ne2 Nc6 =/unclear


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[E24-m*] - NID: Nimzo-Indian
Samisch, Botvinnik variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
4.a3 Bxc3+ 5.bxc3 (CP=d5,e4) c5
(TALV: c5-d4 (Tarrasch lever)) 6.f3!
(WID: e4 + counter Ne4) d5! (TA:
(Tarrasch anvil)) 7.e3 0-0 8.cxd5
Nxd5 9.Ne2 Nc6 10.e4 (WPC: (White
perfect centre)) =


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