OPENINGS THEORY

- ECO CODES BASE -

- E56 -



[E56-a] - NID: Nimzo-Indian:
Rubinstein, main line (7...Nc6)
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 Nc6 (FNBF: (four Knights
basic formation)) =


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[E56-b] - NID: Nimzo-Indian:
Rubinstein, main line (7...Nc6)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.Qc2?! =/+


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[E56-c] - NID: Nimzo-Indian:
Rubinstein, main line (7...Nc6)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.h3?! =/+


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[E56-d] - NID: Nimzo-Indian:
Rubinstein, main line (7...Nc6)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.Na4?! =/+


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[E56-e] - NID: Nimzo-Indian:
Rubinstein, main line (7...Nc6), Reshevsky retort (8.dxc5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.dxc5 (Bxc5)
=/peu clair


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[E56-f] - NID: Nimzo-Indian:
Rubinstein, main line (7...Nc6),
Rabar retort (8.Ne2)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.Ne2!? =


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[E56-g] - NID: Nimzo-Indian:
Rubinstein, main line (7...Nc6),
Landau retort (8.cxd5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.cxd5!? =


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[E56-h] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 (dxc4)
(Bxc3 9.bxc3 (see: E58)) =


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[E56-i] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 (Bxc3 10.bxc3 (see: E59)) +/=


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[E56-j] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Landau-Steiner system (9...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 Ba5 +/=


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[E56-k] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Landau-Steiner system (9...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 Ba5 10.h3!? +/=


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[E56-l] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Landau-Steiner system (9...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 Ba5 10.Ba2 +/=


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[E56-m] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Landau-Steiner system (9...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 Ba5 10.Na4!? +/=


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[E56-n] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Landau-Steiner system (9...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 Ba5 10.Ne2 +/=


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[E56-o] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Landau-Steiner system (9...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 Ba5 10.Bd3 +/=


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[E56-p] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Landau-Steiner system (9...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 Ba5 10.Bd3 cxd4 +/=


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[E56-q] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Landau-Steiner system (9...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 Ba5 10.Qd3 (Qe7) +/=


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[E56-r] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Landau-Steiner system (9...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 Ba5 10.Qd3 a6 /unclear


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[E56-s] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Landau-Steiner system (9...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 Ba5 10.Qd3 a6 11.dxc5
/unclear


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[E56-t] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Landau-Steiner system (9...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 Ba5 10.Qd3 a6 11.Ne4
/unclear


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[E56-u] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Landau-Steiner system (9...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 Ba5 10.Qd3 a6 11.Rd1
/unclear


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[E56-v] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Nikolac-Karaklajic system (12.Ba2)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 Ba5 10.Qd3 a6 11.Rd1 b5
12.Ba2 /unclear


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[E56-w] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Nikolac-Karaklajic system (12.Ba2)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 Ba5 10.Qd3 a6 11.Rd1 b5
12.Ba2 Bb6 /unclear


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[E56-x] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Nikolac-Karaklajic system (12.Ba2)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 Ba5 10.Qd3 a6 11.Rd1 b5
12.Ba2 Bb7 /unclear


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[E56-y] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Nikolac-Karaklajic system (12.Ba2)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 Ba5 10.Qd3 a6 11.Rd1 b5
12.Ba2 c4 /unclear


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[E56-z] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Nikolac-Karaklajic system (12.Ba2)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 dxc4
9.Bxc4 Ba5 10.Qd3 a6 11.Rd1 b5
12.Ba2 c4 13.Qe2 /unclear


1. «»
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[E56-a*] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 cxd4
(9.axb4) +/=


1. «»
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[E56-b*] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 cxd4
9.exd4 Bxc3 +/=


1. «»
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[E56-c*] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 cxd4
9.exd4 dxc4 +/=


1. «»
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[E56-d*] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Cherepkov system (8...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 Ba5!?
+/=


1. «»
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[E56-e*] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Cherepkov system (8...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 Ba5!?
9.Na4 +/=


1. «»
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[E56-f*] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Cherepkov system (8...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 Ba5!?
9.h3 (Qe7) +/=


1. «»
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[E56-g*] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Cherepkov system (8...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 Ba5!?
9.Ne2 +/=


1. «»
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[E56-h*] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Cherepkov system (8...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 Ba5!?
9.cxd5 (exd5 10.Ne2) +/=


1. «»
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[E56-i*] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Cherepkov system (8...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 Ba5!?
9.cxd5 exd5 10.dxc5 (Bxc3) +/=


1. «»
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[E56-j*] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Cherepkov system (8...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 Ba5!?
9.cxd5 exd5 10.dxc5 Bxc3 11.bxc3
Bg4 +/=


1. «»
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[E56-k*] - NID: Nimzo-Indian:
Rubinstein, main line (8.a3),
Cherepkov system (8...Ba5)
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 Nc6 (FNBF: (four Knights
basic formation)) 8.a3 Ba5!?
9.cxd5 exd5 10.dxc5 Bxc3 11.bxc3
Bg4 12.c4! +/=


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