OPENINGS THEORY

- ECBX: ECO CODES BASE -
(ECB Classification)

- B90 i - a to a***

[B90-a] - SDN: Sicilian defence Najdorf variation (5...a6) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) (6.g3 (see: B91)) +(6.Be2 (see: B92)+(6.f4 (see: B93))+(6.Bg5 (see: B94 to B99))

1. «Sicilian Najdorf (B90)»

2. «Alberto de Lira, Carlos - GK B90 (28) 0-1, CXV-GK Match»

3. «Schumacher, Axel - Fruit 2.1 B90 (22) 1-0»

[B90-b] - SDN: Sicilian defence Najdorf variation (5...a6) Balinov Attack (6.Qe2) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Qe2!? /unclear

1. «»

[B90-c] - SDN: Sicilian defence Najdorf variation (5...a6) Padevsky Attack (6.g4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.g4!? /unclear

1. «»

[B90-d] - SDN: Sicilian defence Najdorf variation (5...a6) Georgiev Attack (6.b3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.b3!? /unclear

1. «»

[B90-e] - SDN: Sicilian defence Najdorf variation (5...a6) Ernst Attack (6.Bd2) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bd2?! =/+

1. «»

[B90-f] - SDN: Sicilian defence Najdorf variation (5...a6) Karklins Attack (6.Nf3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Nf3?! =/+

1. «»

[B90-g] - SDN: Sicilian defence Najdorf variation (5...a6) Fred Attack (6.Nb3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Nb3 = (e5 (see also: (B54, B91, B92, B94))

1. «»

[B90-h] - SDN: Sicilian defence Najdorf variation (5...a6) Djurasevic Attack (6.a3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a3? =/+ (see also: B42, B86, B87, B88)

1. «»

[B90-i] - SDN: Sicilian defence Najdorf variation (5...a6) Kudinov-Karklins Attack (6.Qf3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Qf3! +/=

1. «»

[B90-j] - SDN: Sicilian defence Najdorf variation (5...a6) Kudinov-Karklins Attack (6.Qf3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Qf3! e6 +/=

1. «»

[B90-k] - SDN: Sicilian defence Najdorf variation (5...a6) Todorovic Attack (6.Rg1) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Rg1! +/=

1. «»

[B90-l] - SDN: Sicilian defence Najdorf variation (5...a6) Todorovic Attack (6.Rg1) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Rg1! h6 (Sadler) =/unclear

1. «»

[B90-m] - SDN: Sicilian defence Najdorf variation (5...a6) Todorovic Attack (6.Rg1) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Rg1! Nc6?! (Lazic) (see also: B81) +/=

1. «»

[B90-n] - SDN: Sicilian defence Najdorf variation (5...a6) Todorovic Attack (6.Rg1) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Rg1! e6 (Van der Stricht) (see also: B81) +/=

1. «»

[B90-o] - SDN: Sicilian defence Najdorf variation (5...a6) Todorovic Attack (6.Rg1) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Rg1! g6 (Ilincic) (7.g4) =/unclear

1. «»

[B90-p] - SDN: Sicilian defence Najdorf variation (5...a6) Todorovic Attack (6.Rg1) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Rg1! b5! (Nimtz) (7.g4) =/+

1. «»

[B90-q] - SDN: Sicilian defence Najdorf variation (5...a6) Todorovic Attack (6.Rg1) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Rg1! b5! (Nimtz) 7.g4 Bb7 8.Bg2 =/+

1. «»

2. «»

3. «»

[B90-r] - SDN: Sicilian defence Najdorf variation (5...a6) Todorovic Attack (6.Rg1) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Rg1! e5! (Dzevlan) +/=

1. «»

[B90-s] - SDN: Sicilian defence Najdorf variation (5...a6) Todorovic Attack (6.Rg1) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Rg1! e5! (Dzevlan) 7.Nb3 Be6 =/+

1. «Petrossian, Tigran (Young) - Ghaem Maghani, Ehsam (2558) B90 (32) 1-0, Karabakh 2004»

[B90-t] - SDN: Sicilian defence Najdorf variation (5...a6) Yates Attack (6.Bd3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bd3?! (see also: B42, B43, B71, B80, B82, B93, B95) =/+

1. «»

[B90-u] - SDN: Sicilian defence Najdorf variation (5...a6) Yates Attack (6.Bd3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bd3?! b5! (Ammann) =/+

1. «»

[B90-v] - SDN: Sicilian defence Najdorf variation (5...a6) Yates Attack (6.Bd3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bd3?! Nbd7! (Dely) =/+ (see also: B42, B51, B56, B82, B84, B92)+(7.f4 (see: B93))

1. «»

[B90-w] - SDN: Sicilian defence Najdorf variation (5...a6) Yates Attack (6.Bd3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bd3?! g6! (Van des Bosch) (see also: B71, B93) =/+

1. «»

[B90-x] - SDN: Sicilian defence Najdorf variation (5...a6) Yates Attack (6.Bd3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bd3?! g6! (Van des Bosch) (see also: B71, B93) 7.0-0 Bg7 (8.Kh1) =/+

1. «Hanham, James Moore - Showalter, Jackson Whipps D00 (35) 1-0, USA-06 Congress New York (36), 1889»

[B90-y] - SDN: Sicilian defence Najdorf variation (5...a6) Yates Attack (6.Bd3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bd3?! Nc6! (Tartakover) =/unclear

1. «»

[B90-z] - SDN: Sicilian defence Najdorf variation (5...a6) Yates Attack (6.Bd3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bd3?! Nc6! (Tartakover) 7.Nb3 (see also: B33, B80) =/+

1. «»

[B90-a*] - SDN: Sicilian defence Najdorf variation (5...a6) Yates Attack (6.Bd3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bd3?! Nc6! (Tartakover) 7.Nxc6! bxc6 (see also: B46) =

1. «»

[B90-b*] - SDN: Sicilian defence Najdorf variation (5...a6) Yates Attack (6.Bd3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bd3?! Nc6! (Tartakover) 7.Nxc6! bxc6 (see also: B46) 8.0-0 =

1. «»

[B90-c*] - SDN: Sicilian defence Najdorf variation (5...a6) Yates Attack (6.Bd3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bd3?! e5! (Milev) (7.Nf5?!) =/+

1. «»

[B90-d*] - SDN: Sicilian defence Najdorf variation (5...a6) Yates Attack (6.Bd3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bd3?! e5! (Milev) 7.Nf3 =/+

1. «»

[B90-e*] - SDN: Sicilian defence Najdorf variation (5...a6) Yates Attack (6.Bd3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bd3?! e5! (Milev) 7.Nb3 =/+

1. «»

[B90-f*] - SDN: Sicilian defence Najdorf variation (5...a6) Yates Attack (6.Bd3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bd3?! e5! (Milev) 7.Nde2 =

1. «»

[B90-g*] - SDN: Sicilian defence Najdorf variation (5...a6) Yates Attack (6.Bd3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bd3?! e5! (Milev) 7.Nde2 Be7 8.0-0 =

1. «»

[B90-h*] - SDN: Sicilian defence Najdorf variation (5...a6) Yates Attack (6.Bd3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bd3?! e5! (Milev) 7.Nde2 Be7 8.0-0 0-0 =

1. «»

[B90-i*] - SDN: Sicilian defence Najdorf variation (5...a6) Yates Attack (6.Bd3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bd3?! e6 (Tarrasch) =/+ (see also: B42, B43, B46, B80, B82, B86, B95)

1. «»

[B90-j*] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 =/unclear

1. «»

[B90-k*] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 b5 (Sandrin) =/+

1. «»

[B90-l*] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 b5 (Sandrin) 7.g4 Bb7 8.Bg2 =/unclear

1. «»

[B90-m*] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 Nc6 (Geller) +/=

1. «»

[B90-n*] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 Nc6 (Geller) 7.g4 +/=

1. «»

[B90-o*] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 Nc6 (Geller) 7.g4 e6 +/=

1. «»

[B90-p*] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 Nc6 (Geller) 7.g4 e6 8.Bg2 Qc7 +/=

1. «»

[B90-q*] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 g6 (Drimer) (see also: B70, B72, B91) (7.g3) =

1. «»

[B90-r*] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 g6 (Drimer) 7.Be3 (see also: B72) (Bg7) =/+

1. «»

[B90-s*] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 g6 (Drimer) 7.Bc4 (see also: B70, B72) (Bg7) =/+

1. «»

[B90-t*] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 g6 (Drimer) 7.g4 (see also: B70, B72) (Bg7) =/unclear

1. «»

[B90-u*] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 g6 (Drimer) 7.g4 (see also: B70, B72) Bg7 8.g5 (Fischer) =/+

1. «»

[B90-v*] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 g6 (Drimer) 7.g4 (see also: B70, B72) Bg7 8.Bg2! (Tamowski) +/=

1. «»

[B90-w*] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 e5 (Rossetto) (7.Nf3) +/=

1. «»

[B90-x*] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 e5 (Rossetto) 7.Nb3 (Kramer) =

1. «»

[B90-y*] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 e5 (Rossetto) 7.Nde2 (Witkowski) +/=

1. «»

[B90-z*] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 e5 (Rossetto) 7.Nde2 (Witkowski) b5 +/=

1. «»

[B90-a**] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 e5 (Rossetto) 7.Nde2 (Witkowski) Be7 +/=

1. «»

[B90-b**] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 e5 (Rossetto) 7.Nde2 (Witkowski) Be6 +/=

1. «»

[B90-c**] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 e6 (Rossolimo) (7.g4 (see: B43, B81)) +/=

1. «»

[B90-d**] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 e6 (Rossolimo) 7.Bd3?! (Olivera) =/+

1. «»

[B90-e**] - SDN: Sicilian defence Najdorf variation (5...a6) Adams Attack (6.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.h3 e6 (Rossolimo) 7.Be3?! (Ciric) =/+

1. «»

[B90-f**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 = (see also: B42, B70, B71, B73, B74, B83, B84, B85, B86, B88, B91, B92, B93) (BWS: Black Wide Spectrum)

1. «»

[B90-g**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) Bd7 (Preiss) = (see also: B83, B84)

1. «»

[B90-h**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) Nbd7 (Minic) = (see also: B50, B83, B84, B92, B93, B94)

1. «»

[B90-i**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) Qc7 (Kahn) =/+ (see also: B47, B84, B85, B92, B93)+(7.f4 (see: B57, B84, B85, B93))

1. «»

[B90-j**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) Qc7 (Kahn) 7.Be2 (Omstein) (see also: B84, B85, B92) =/unclear

1. «»

[B90-k**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) b6 (Kieninger) =

1. «»

[B90-l**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) b6 (Kieninger) 7.Be2?! (Fazekas) (see also: B84) =/+

1. «»

[B90-m**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) b6 (Kieninger) 7.g3 (Pfeiffer) (see also: B80) +/=

1. «»

[B90-n**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) b6 (Kieninger) 7.Bc4 (Bergamann) =

1. «»

[B90-o**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) b6 (Kieninger) 7.Bd3?! (Marinsek) (see also: B42, B80, B93) =/+

1. «»

[B90-p**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) g6 (Bogoljubov) (see also: B70, B71, b73, B74 B91, B93) (7.g3) =

1. «»

[B90-q**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) g6 (Bogoljubov) 7.Bc4?! (Nielsen) =/+

1. «»

[B90-r**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) g6 (Bogoljubov) 7.Be2 (Rabar) = (see also: B70, B71, B73, B74, B93)

1. «»

[B90-s**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) g6 (Bogoljubov) 7.Be2 (Rabar) Nc6 +/= (see also: B70, B71, B73, B74, B93)

1. «»

[B90-t**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) g6 (Bogoljubov) 7.Be2 (Rabar) Bg7 = (see also: B70, B71, B73, B74, B93)

1. «»

[B90-u**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) g6 (Bogoljubov) 7.Be2 (Rabar) Bg7 8.Be3 (see also: B70, B71, B73, B74, B93) =/unclear

1. «»

[B90-v**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) g6 (Bogoljubov) 7.Be2 (Rabar) Bg7 8.0-0 (see also: B70, B71, B73, B74, B93) =/unclear

1. «»

[B90-w**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) g6 (Bogoljubov) 7.Be2 (Rabar) Bg7 8.0-0 Nc6 (see also: B70, B71, B73, B74, B93) =

1. «»

[B90-x**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) g6 (Bogoljubov) 7.Be2 (Rabar) Bg7 8.0-0 0-0 (see also: B70, B71, B73, B74, B93) =/unclear

1. «»

[B90-y**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) g6 (Bogoljubov) 7.Be2 (Rabar) Bg7 8.0-0 0-0 9.Be3 (see also: B70, B71, B73, B74, B93) =/+

1. «»

[B90-z**] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) g6 (Bogoljubov) 7.Be2 (Rabar) Bg7 8.0-0 0-0 9.Be3 Nc6 (see also: B70, B71, B73, B74, B93) =/+

1. «»

[B90-a***] - SDN: Sicilian defence Najdorf variation (5...a6) Factor Attack (6.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.a4 (BWS: (Black Wide Spectrum)) g6 (Bogoljubov) 7.Be2 (Rabar) Bg7 8.0-0 0-0 9.Be3 Nc6 10.Nb3 (see also: B70, B71, B73, B74, B93) =/+

1. «»

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