OPENINGS THEORY
- ECO CODES BASE -

- E29 -

[E29-a] - NID: Nimzo- Indian: Samisch, main line 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6

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[E29-b] - NID: Nimzo- Indian: Samisch, main line 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Nf3 (TNBF: (three Knights basic formation)) d6 (WID: e5)

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[E29-c] - NID: Nimzo- Indian: Samisch, main line 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Nf3 (TNBF: (three Knights basic formation)) d6 (WID: e5) 9.0-0

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[E29-d] - NID: Nimzo- Indian: Samisch, main line 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Nf3 (TNBF: (three Knights basic formation)) d6 (WID: e5) 9.0-0 e5 (QULV: d4-e5 (Queen's lever))

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[E29-e] - NID: Nimzo- Indian: Samisch, main line 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.e4 (WSPS: (White strong pawn structure)) =/unclear

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[E29-f] - NID: Nimzo- Indian: Samisch, main line 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.e4 (WSPS: (White strong pawn structure)) cxd4 9.cxd4 d5 =/unclear

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[E29-g] - NID: Nimzo- Indian: Samisch, main line 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.e4 (WSPS: (White strong pawn structure)) cxd4 9.cxd4 Nxd4 /unclear

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[E29-h] - NID: Nimzo- Indian: Samisch, main line 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) Ne8!? (WID: f5)

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[E29-i] - NID: Nimzo- Indian: Samisch, main line 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) d6 (WID: e5)

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[E29-j] - NID: Nimzo- Indian: Samisch, main line 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) d6 (WID: e5) 9.0-0 (e5)

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[E29-k] - NID: Nimzo- Indian: Samisch, main line 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) d6 (WID: e5) 9.0-0 e5 10.f3 b6 +/=

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[E29-l] - NID: Nimzo- Indian: Samisch, main line 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) d6 (WID: e5) 9.e4 e5 (QULV: d4-e5 (Queen's lever)) +/=

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[E29-m] - NID: Nimzo- Indian: Samisch, main line 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) d6 (WID: e5) 9.e4 e5 (QULV: d4-e5 (Queen's lever)) 10.d5 (BPI: (Benoni's Pillbox)) (Ne7) +/=

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[E29-n] - NID: Nimzo- Indian: Samisch, main line 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6)

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[E29-o] - NID: Nimzo- Indian: Samisch, main line 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) +/=

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[E29-p] - NID: Nimzo-Indian: Samisch, Capablanca variation 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) Ne8! (SW: (strategic withdrawal))+(WID: f5) /unclear

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[E29-q] - NID: Nimzo-Indian: Samisch, Capablanca variation 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) Ne8! (SW: (strategic withdrawal))+(WID: f5) 10.Be3 (HBF: (high Bishop formation) (Na5) /unclear

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[E29-r] - NID: Nimzo-Indian: Samisch, Capablanca variation 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) Ne8! (SW: (strategic withdrawal))+(WID: f5) 10.Be3 (HBF: (high Bishop formation) d6?! /unclear

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[E29-s] - NID: Nimzo-Indian: Samisch, Capablanca variation 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) Ne8! (SW: (strategic withdrawal))+(WID: f5) 10.Be3 (HBF: (high Bishop formation) d6?! 11.Ng3 Na5 +/=

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[E29-t] - NID: Nimzo-Indian: Samisch, Capablanca variation 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) Ne8! (SW: (strategic withdrawal))+(WID: f5) 10.Be3 (HBF: (high Bishop formation) d6?! 11.Ng3 Na5 12.d5 (KILV:: Korchnoi lever)) f5 +/=

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[E29-u] - NID: Nimzo-Indian: Samisch, Capablanca variation 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) Ne8! (SW: (strategic withdrawal))+(WID: f5) 10.Be3 (HBF: (high Bishop formation) Ba6!? +/=

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[E29-v] - NID: Nimzo-Indian: Samisch, Capablanca variation 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) Ne8! (SW: (strategic withdrawal))+(WID: f5) 10.Be3 (HBF: (high Bishop formation) Ba6!? 11.Ng3 Na5 +/=

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[E29-w] - NID: Nimzo-Indian: Samisch, Capablanca variation 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) Ne8! (SW: (strategic withdrawal))+(WID: f5) 10.Be3 (HBF: (high Bishop formation) Ba6!? 11.0-0 d6 +/=

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[E29-x] - NID: Nimzo-Indian: Samisch, Capablanca variation 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) Ne8! (SW: (strategic withdrawal))+(WID: f5) 10.Be3 (HBF: (high Bishop formation) Ba6!? 11.0-0 Na5 +/=

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[E29-y] - NID: Nimzo-Indian: Samisch, Capablanca variation 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) Ne8! (SW: (strategic withdrawal))+(WID: f5) 10.0-0

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[E29-z] - NID: Nimzo-Indian: Samisch, Capablanca variation 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) Ne8! (SW: (strategic withdrawal))+(WID: f5) 10.0-0 d6 (CDAL: d4,e4-d6,e6 (central double airlock))

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[E29-a*] - NID: Nimzo-Indian: Samisch, Capablanca variation 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) Ne8! (SW: (strategic withdrawal))+(WID: f5) 10.0-0 Ba6

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[E29-b*] - NID: Nimzo-Indian: Samisch, Capablanca variation 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) Ne8! (SW: (strategic withdrawal))+(WID: f5) 10.0-0 Ba6 11.Qa4 Qc8

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[E29-c*] - NID: Nimzo-Indian: Samisch, Capablanca variation 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) Ne8! (SW: (strategic withdrawal))+(WID: f5) 10.e5 f5

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[E29-d*] - NID: Nimzo-Indian: Samisch, Capablanca variation 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) Ne8! (SW: (strategic withdrawal))+(WID: f5) 10.e5 f5 11.exf6 +/=

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[E29-e*] - NID: Nimzo-Indian: Samisch, Capablanca variation 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) Ne8! (SW: (strategic withdrawal))+(WID: f5) 10.e5 f5 11.exf6 Qxf6 +/=

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[E29-f*] - NID: Nimzo-Indian: Samisch, Capablanca variation 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (WID: counter e4)+(CP=d5,e4) 4.a3 Bxc3+ 5.bxc3 0-0 6.e3 c5 (TALV: c5-d4 (Tarrasch's lever)) 7.Bd3 (FL: (free line)) Nc6 8.Ne2 (WID: Ng3) b6 (WID: Bb7-a6) 9.e4 (WSPS: (White strong pawn structure)) Ne8! (SW: (strategic withdrawal))+(WID: f5) 10.e5 f5 11.exf6 Qxf6 12.Be3 (CP=d4 (critical point)) (cxd4) +/=

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