OPENINGS THEORY

- ECO CODES BASE -

- E52 -

[E52-a] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 =

1. «»

[E52-b] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.Qc2 =

1. «»

[E52-c] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.Bd2 =

1. «»

[E52-d] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.Bd2 Bb7 =

1. «»

[E52-e] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bondarevski system 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.Bd2 Bb7 8.cxd5 exd5 =

1. «»

[E52-f] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.Bd2 Bb7 8.0-0 (a5!) =

1. «»

[E52-g] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.Bd2 Bb7 8.0-0 Nbd7 =

1. «»

[E52-h] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.Bd2 Bb7 8.0-0 c5 (TA: c4,d4-c5,d5 (Tarrasch anvil)) =

1. «»

[E52-i] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.Bd2 Bb7 8.0-0 c5 (TA: c4,d4-c5,d5 (Tarrasch anvil)) 9.cxd5 =

1. «»

[E52-j] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.Bd2 Bb7 8.0-0 dxc4 9.Bxc4 (Nbd7) =

1. «»

[E52-k] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.Bd2 Bb7 8.0-0 dxc4 9.Bxc4 Nbd7 10.Qe2 +/=

1. «»

[E52-l] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, modern line (7...Bd6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.a3 Bd6!? +/=

1. «»

[E52-m] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, modern line (7...Bd6) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.a3 Bd6!? 8.e4 (dxe4) +/=

1. «»

[E52-n] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.a3 Bxc3+ 8.bxc3 (Ba6!?) =

1. «»

[E52-o] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.a3 Be7 (8.cxd5) =

1. «»

[E52-p] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.a3 Be7 8.0-0 (c5) =

1. «»

[E52-q] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.a3 Be7 8.0-0 Bb7 (9.cxd5) =

1. «»

[E52-r] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.cxd5 =

1. «»

[E52-s] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.cxd5 exd5 (8.0-0) =

1. «»

[E52-t] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 (c5 (see also: E53)) =

1. «»

[E52-u] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 dxc4 8.Bxc4 c5 (9.Qe2) =

1. «»

[E52-v] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Keres variation (7.0-0 c5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) (see also: E53) =

1. «»

[E52-w] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Keres variation (7.0-0 c5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) (see also: E53) 8.a3 =

1. «»

[E52-x] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Keres variation (7.0-0 c5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) (see also: E53) 8.a3 Bxc3 9.bxc3 (Ba6) =

1. «»

[E52-y] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Keres variation (7.0-0 c5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) (see also: E53) 8.a3 Bxc3 9.bxc3 Nc6 =

1. «»

[E52-z] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Keres variation (7.0-0 c5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) (see also: E53) 8.a3 Bxc3 9.bxc3 Nc6 10.cxd5 =

1. «»

[E52-a*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Keres variation (7.0-0 c5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) (see also: E53) 8.cxd5 =

1. «»

[E52-b*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Keres variation (7.0-0 c5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) (see also: E53) 8.cxd5 exd5 (9.a3) =

1. «»

[E52-c*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Keres variation (7.0-0 c5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) (see also: E53) 8.cxd5 exd5 9.dxc5 (bxc5) =

1. «»

[E52-d*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Keres variation (7.0-0 c5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) (see also: E53) 8.cxd5 exd5 9.Ne5!? (CD=a1-h8 (critical diago- nal))+(PFC: (pawn figure complex)) /unclear

1. «»

[E52-e*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Keres variation (7.0-0 c5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) (see also: E53) 8.cxd5 exd5 9.Ne5!? (CD=a1-h8 (critical diago- nal))+(PFC: (pawn figure complex)) Bxc3 /unclear

1. «»

[E52-f*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Keres variation (7.0-0 c5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) (see also: E53) 8.cxd5 exd5 9.Ne5!? (CD=a1-h8 (critical diago- nal))+(PFC: (pawn figure complex)) Bb7 /unclear

1. «»

[E52-g*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 (WWS: (White wide spectrum)) (8.Nd2!?) /unclear

1. «»

[E52-h*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 (WWS: (White wide spectrum)) 8.Ne2!? /unclear

1. «»

[E52-i*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 (WWS: (White wide spectrum)) 8.Qc2 /unclear

1. «»

[E52-j*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 (WWS: (White wide spectrum)) 8.Ne5 (Nbd7) /unclear

1. «»

[E52-k*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 (WWS: (White wide spectrum)) 8.Qe2 (c5) /unclear

1. «»

[E52-l*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 (WWS: (White wide spectrum)) 8.Qe2 Nbd7 /unclear

1. «»

[E52-m*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 (WWS: (White wide spectrum)) 8.Bd2 (WIBF: d2,d3 (White inter- mediate Bishops formation)) +/=

1. «»

[E52-n*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 (WWS: (White wide spectrum)) 8.Bd2 (WIBF: d2,d3 (White inter- mediate Bishops formation)) Nbd7 +/=

1. «»

[E52-o*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 (WWS: (White wide spectrum)) 8.Bd2 (WIBF: d2,d3 (White inter- mediate Bishops formation)) c5 (TA: c4,d4-c5,d5 (Tarrasch's anvil)) +/=

1. «»

[E52-p*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 (WWS: (White wide spectrum)) 8.a3 (BNS: (Black narrow spectrum)) dxc4 +/=

1. «»

[E52-q*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 (WWS: (White wide spectrum)) 8.a3 (BNS: (Black narrow spectrum)) Bxc3 9.bxc3 +/=

1. «»

[E52-r*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 (WWS: (White wide spectrum)) 8.a3 (BNS: (Black narrow spectrum)) Be7 +/=

1. «»

[E52-s*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 (WWS: (White wide spectrum)) 8.a3 (BNS: (Black narrow spectrum)) Bd6 (9.b3) +/=

1. «»

[E52-t*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 (WWS: (White wide spectrum)) 8.a3 (BNS: (Black narrow spectrum)) Bd6 9.cxd5 +/=

1. «»

[E52-u*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 (WWS: (White wide spectrum)) 8.a3 (BNS: (Black narrow spectrum)) Bd6 9.b4 (dxc4) +/=

1. «»

[E52-v*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 (WWS: (White wide spectrum)) 8.cxd5 +/=

1. «»

[E52-w*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 =

1. «»

[E52-x*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Ne2 (Nbd7) =

1. «»

[E52-y*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Qc2 (Re8) =

1. «»

[E52-z*] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Qc2 Nbd7 =

1. «»

[E52-a**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Bd2 (WIBF: d2,d3 (White intermediate Bishops forma- tion)) =

1. «»

[E52-b**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Bd2 (WIBF: d2,d3 (White intermediate Bishops forma- tion)) c5 (TAR: d4-c5,d5 (Tarrasch anti-ram)) =

1. «»

[E52-c**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Bd2 (WIBF: d2,d3 (White intermediate Bishops forma- tion)) Bd6 =

1. «»

[E52-d**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Bd2 (WIBF: d2,d3 (White intermediate Bishops forma- tion)) a6 =

1. «»

[E52-e**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Bd2 (WIBF: d2,d3 (White intermediate Bishops forma- tion)) Nbd7 (10.Qc2) =

1. «»

[E52-f**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Bd2 (WIBF: d2,d3 (White intermediate Bishops forma- tion)) Nbd7 10.Rc1 (OF: (open file)) =

1. «»

[E52-g**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.a3 (BNS: (Black narrow spectrum)) (Bxc3) +/=

1. «»

[E52-h**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.a3 (BNS: (Black narrow spectrum)) Be7 (10.b4) +/=

1. «»

[E52-i**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.a3 (BNS: (Black narrow spectrum)) Bd6 (10.b4) +/=

1. «»

[E52-j**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.a3 (BNS: (Black narrow spectrum)) Bd6 10.b4 Nbd7 +/=

1. «»

[E52-k**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.a3 (BNS: (Black narrow spectrum)) Bd6 10.b4 a6 +/=

1. «»

[E52-l**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.a3 (BNS: (Black narrow spectrum)) Bd6 10.b4 a6 11.Qb3 (Qe7) +/=

1. «»

[E52-m**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.a3 (BNS: (Black narrow spectrum)) Bd6 10.b4 a6 11.Qb3 Nbd7 (12.a4) +/=

1. «»

[E52-n**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Ne5!? (CD=a1-h8 (critical diagonal)) +/=

1. «»

[E52-o**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Ne5!? (CD=a1-h8 (critical diagonal)) a6 +/=

1. «»

[E52-p**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Ne5!? (CD=a1-h8 (critical diagonal)) c5 (TAR: d4- c5,d5 (Tarrasch's anti-ram)) +/=

1. «»

[E52-q**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Ne5!? (CD=a1-h8 (critical diagonal)) c5 (TAR: d4- c5,d5 (Tarrasch's anti-ram)) 10.Bd2 (WIBF: d2,d2 (White intermediate Bishops formation)) +/=

1. «»

[E52-r**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Ne5!? (CD=a1-h8 (critical diagonal)) Bd6 +/=

1. «»

[E52-s**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Ne5!? (CD=a1-h8 (critical diagonal)) Bd6 10.f4 +/=

1. «»

[E52-t**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Ne5!? (CD=a1-h8 (critical diagonal)) Nbd7 (PFC: (pawn figure complex)) +/=

1. «»

[E52-u**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Ne5!? (CD=a1-h8 (critical diagonal)) Nbd7 (PFC: (pawn figure complex)) 10.f4 +/=

1. «»

[E52-v**] - NID: Nimzo-Indian: Rubinstein, main line with 6...b6, Bogoljubov-Euwe system (8...exd5) 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nf3 d5 6.Bd3 b6 7.0-0 Bb7 8.cxd5 exd5 9.Ne5!? (CD=a1-h8 (critical diagonal)) Nbd7 (PFC: (pawn figure complex)) 10.f4 c5 (TAR: d4-c5,d5 (Tarrasch's anti- ram)) +/=

1. «»

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