OPENINGS THEORY

- ECO CODES BASE -

- E54 -

[E54-a] - NID: Nimzo-Indian: Gligoric system with 7...dxc4 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum))+(Nbd7 (see: E55)) +(Nc6 9.a3 (see: E56)) =/unclear

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[E54-b] - NID: Nimzo-Indian: Gligoric system with 7...dxc4 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) Qc7 =/unclear

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[E54-c] - NID: Nimzo-Indian: Gligoric system with 7...dxc4 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) Bxc3 9.bxc3 =/unclear

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[E54-d] - NID: Nimzo-Indian: Gligoric system with 7...dxc4 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) a6 (9.a4) =/unclear

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[E54-e] - NID: Nimzo-Indian: Gligoric system with 7...dxc4 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) a6 9.a3 =/unclear

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[E54-f] - NID: Nimzo-Indian: Gligoric system with 7...dxc4 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) Bd7 (9.a3) /unclear

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[E54-g] - NID: Nimzo-Indian: Gligoric system with 7...dxc4 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) Bd7 9.Qe2 +/=

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[E54-h] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Smyslov variation (8...Qe7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) Qe7 (9.Qe2) +/=

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[E54-i] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Smyslov variation (8...Qe7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) Qe7 9.a3 +/=

1. «»

[E54-j] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Smyslov variation (8...Qe7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) Qe7 9.a3 Ba5 +/=

1. «»

[E54-k] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Smyslov variation (8...Qe7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) Qe7 9.a3 Ba5 10.Qc2 (Bd7) +/=

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[E54-l] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Smyslov variation (8...Qe7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) Qe7 9.a3 Ba5 10.Qc2 Bd7 11.Ba2 +/=

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[E54-m] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Exchange variation (8...cxd4) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 (9.exd4) +/=

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[E54-n] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Exchange variation (8...cxd4) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Qc7 +/=

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[E54-o] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Exchange variation (8...cxd4) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Bxc3 10.bxc3 +/=

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[E54-p] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Exchange variation (8...cxd4) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Bxc3 10.bxc3 Qc7 +/=

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[E54-q] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Exchange variation (8...cxd4) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nc6 (FNBF: (four Knights basic forma- tion)) +/=

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[E54-r] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Exchange variation (8...cxd4) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nc6 (FNBF: (four Knights basic forma- tion)) 10.Bd3 (Be7) +/=

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[E54-s] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Exchange variation (8...cxd4) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nc6 (FNBF: (four Knights basic forma- tion)) 10.Bd3 Be7 11.a3 +/=

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[E54-t] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Exchange variation (8...cxd4) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nc6 (FNBF: (four Knights basic forma- tion)) 10.a3 (Be7 (see: D40)) +/=

1. «»

[E54-u] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Exchange variation (8...cxd4) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nc6 (FNBF: (four Knights basic forma- tion)) 10.Bg5 +/=

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[E54-v] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Wittek-Schwarz variation (10...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nc6 (FNBF: (four Knights basic forma- tion)) 10.Bg5 Be7 (11.a3 (see: E57)) +/=

1. «»

[E54-w] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Wittek-Schwarz variation (10...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nc6 (FNBF: (four Knights basic forma- tion)) 10.Bg5 Be7 11.Qd2 +/=

1. «»

[E54-x] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Wittek-Schwarz variation (10...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nc6 (FNBF: (four Knights basic forma- tion)) 10.Bg5 Be7 11.Bd3 +/=

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[E54-y] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Wittek-Schwarz variation (10...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nc6 (FNBF: (four Knights basic forma- tion)) 10.Bg5 Be7 11.Rc1 (OF: (open file)) +/=

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[E54-z] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Wittek-Schwarz variation (10...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nc6 (FNBF: (four Knights basic forma- tion)) 10.Bg5 Be7 11.Bf4 (a6) +/=

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[E54-a*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Wittek-Schwarz variation (10...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nc6 (FNBF: (four Knights basic forma- tion)) 10.Bg5 Be7 11.Re1 (OF: (open file)) (Nb4!?) +/=

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[E54-b*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Wittek-Schwarz variation (10...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nc6 (FNBF: (four Knights basic forma- tion)) 10.Bg5 Be7 11.Re1 (OF: (open file)) h6 +/=

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[E54-c*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Wittek-Schwarz variation (10...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nc6 (FNBF: (four Knights basic forma- tion)) 10.Bg5 Be7 11.Re1 (OF: (open file)) a6 +/=

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[E54-d*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Wittek-Schwarz variation (10...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nc6 (FNBF: (four Knights basic forma- tion)) 10.Bg5 Be7 11.Re1 (OF: (open file)) b6 +/=

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[E54-e*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Bolbochan-Ibanez line (9...Nbd7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nbd7 +/=

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[E54-f*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Bolbochan-Ibanez line (9...Nbd7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nbd7 10.a3 +/=

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[E54-g*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Bolbochan-Ibanez line (9...Nbd7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nbd7 10.a3 Bxc3 11.bxc3 Qc7 (12.Qd3) +/=

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[E54-h*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Bolbochan-Ibanez line (9...Nbd7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nbd7 10.Qe2 (Be7) +/=

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[E54-i*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Bolbochan-Ibanez line (9...Nbd7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nbd7 10.Qe2 Be7 11.Bg5 (Nb6) +/=

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[E54-j*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Bolbochan-Ibanez line (9...Nbd7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nbd7 10.Bg5!? +/=

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[E54-k*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Bolbochan-Ibanez line (9...Nbd7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nbd7 10.Bg5!? Be7 +/=

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[E54-l*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Bolbochan-Ibanez line (9...Nbd7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nbd7 10.Bg5!? Bxc3 11.bxc3 (b6) +/=

1. «»

[E54-m*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Bolbochan-Ibanez line (9...Nbd7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Nbd7 10.Bg5!? Bxc3 11.bxc3 Qc7 +/=

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[E54-n*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Opocensky-Donegan line (9...a6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 a6 (10.a3) =/unclear

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[E54-o*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Opocensky-Donegan line (9...a6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 a6 10.a4 =/unclear

1. «»

[E54-p*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Opocensky-Donegan line (9...a6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 a6 10.Bg5 (b5) =/unclear

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[E54-q*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Zukertort-Steinitz line (9...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Be7 (WWS: (White wide spectrum)) +/=

1. «»

[E54-r*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Zukertort-Steinitz line (9...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Be7 (WWS: (White wide spectrum)) 10.Ne5 +/=

1. «»

[E54-s*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Zukertort-Steinitz line (9...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Be7 (WWS: (White wide spectrum)) 10.Be3 (Nc6) +/=

1. «»

[E54-t*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Zukertort-Steinitz line (9...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Be7 (WWS: (White wide spectrum)) 10.Bf4 (Nc6) +/=

1. «»

[E54-u*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Zukertort-Steinitz line (9...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Be7 (WWS: (White wide spectrum)) 10.a3 (Nbd7) (see also: A14, B13, B14,D20, D26, D30, D40, E41, E51, E57) +/=

1. «»

[E54-v*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Zukertort-Steinitz line (9...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Be7 (WWS: (White wide spectrum)) 10.a3 Nc6 (FNBF: (four Knights basic formation))+(see also: B14, D26, D40) +/=

1. «»

[E54-w*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Zukertort-Steinitz line (9...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Be7 (WWS: (White wide spectrum)) 10.Re1 (OF: (open file)+(see: D26, D27, E57) +/=

1. «»

[E54-x*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Zukertort-Steinitz line (9...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Be7 (WWS: (White wide spectrum)) 10.Bg5 (see: D26, D27, E57) +/=

1. «»

[E54-y*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Zukertort-Steinitz line (9...Be7) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 Be7 (WWS: (White wide spectrum)) 10.Qe2 (see: D26, D27) +/=

1. «»

[E54-z*] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Karpov-Polugaevsky line (9...b6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 b6 (WWS: (White wide spectrum)) +/=

1. «»

[E54-a**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Karpov-Polugaevsky line (9...b6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 b6 (WWS: (White wide spectrum)) 10.Qb3 +/=

1. «»

[E54-b**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Karpov-Polugaevsky line (9...b6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 b6 (WWS: (White wide spectrum)) 10.Qd3 +/=

1. «»

[E54-c**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Karpov-Polugaevsky line (9...b6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 b6 (WWS: (White wide spectrum)) 10.Ne5 +/=

1. «»

[E54-d**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Karpov-Polugaevsky line (9...b6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 b6 (WWS: (White wide spectrum)) 10.a3 (Bxc3) +/=

1. «»

[E54-e**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Karpov-Polugaevsky line (9...b6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 b6 (WWS: (White wide spectrum)) 10.Re1 (Bb7) +/=

1. «»

[E54-f**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Karpov-Polugaevsky line (9...b6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 b6 (WWS: (White wide spectrum)) 10.Qe2 (Nc6) +/=

1. «»

[E54-g**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Karpov-Polugaevsky line (9...b6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 b6 (WWS: (White wide spectrum)) 10.Qe2 Bb7 +/=

1. «»

[E54-h**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Karpov-Polugaevsky line (9...b6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 b6 (WWS: (White wide spectrum)) 10.Qe2 Bb7 11.Rd1 +/=

1. «»

[E54-i**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Karpov-Polugaevsky line (9...b6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 b6 (WWS: (White wide spectrum)) 10.Qe2 Bb7 11.Bg5 +/=

1. «»

[E54-j**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Karpov-Polugaevsky line (9...b6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 b6 (WWS: (White wide spectrum)) 10.Qe2 Bb7 11.Bg5 Bxc3 12.bxc3 (Nbd7) +/=

1. «»

[E54-k**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Karpov-Polugaevsky line (9...b6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 b6 (WWS: (White wide spectrum)) 10.Bg5 (Bb7 11.Qe2 (see: E54-i**))

1. «»

[E54-l**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Karpov-Polugaevsky line (9...b6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 b6 (WWS: (White wide spectrum)) 10.Bg5 Re1 +/=

1. «»

[E54-m**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4, Karpov-Polugaevsky line (9...b6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) cxd4 9.exd4 b6 (WWS: (White wide spectrum)) 10.Bg5 Rc1 +/=

1. «»

[E54-n**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) b6 +/=

1. «»

[E54-o**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) b6 9.a3 (Bxc3) +/=

1. «»

[E54-p**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) b6 9.Qe2 +/=

1. «»

[E54-q**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) b6 9.Qe2 Bb7 +/=

1. «»

[E54-r**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) b6 9.Qe2 Nbd7 +/=

1. «»

[E54-s**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) b6 9.Qe2 Nbd7 10.Rd1 +/=

1. «»

[E54-t**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) Nc6 (FNBF: (four Knights basic formation))+(9.a3 (see: E56)) +/=

1. «»

[E54-u**] - NID: Nimzo-Indian: Gligoric system with 7...dxc4 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) 7.0-0 dxc4 8.Bxc4 (BWS: (Black wide spectrum)) Nc6 (FNBF: (four Knights basic formation)) 9.Bd3 +/=

1. «»

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