OPENINGS THEORY

- ECBX: ECO CODES BASE -
(ECB Classification)

- B90 vi - a16* to u**

[B90-a16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Kotronias-Marjanovic System (6.Be3 e5 7.Nf3 Be7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Be7 (Stein) =/unclear

1. «»

[B90-b16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Kotronias-Marjanovic System (6.Be3 e5 7.Nf3 Be7 8.Bc4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Be7 (Stein) 8.Bc4 (Miles) +/=

1. «»

[B90-c16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Kotronias-Marjanovic System (6.Be3 e5 7.Nf3 Be7 8.Bc4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Be7 (Stein) 8.Bc4 (Miles) Qc7 +/=

1. «»

[B90-d16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Kotronias-Marjanovic System (6.Be3 e5 7.Nf3 Be7 8.Bc4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Be7 (Stein) 8.Bc4 (Miles) h6 +/=

1. «»

[B90-e16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Kotronias-Marjanovic System (6.Be3 e5 7.Nf3 Be7 8.Bc4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Be7 (Stein) 8.Bc4 (Miles) Be6 +/=

1. «»

[B90-f16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Kotronias-Marjanovic System (7.Nf3 Be7 8.Bc4 0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Be7 (Stein) 8.Bc4 (Miles) 0-0 +/=

1. «»

[B90-g16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Kotronias-Marjanovic System (7.Nf3 Be7 8.Bc4 0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Be7 (Stein) 8.Bc4 (Miles) 0-0 9.0-0 +/=

1. «»

[B90-h16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Kotronias-Marjanovic System (8.Bc4 0-0 9.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Be7 (Stein) 8.Bc4 (Miles) 0-0 9.0-0 Nc6 +/=

1. «»

2. «»

[B90-i16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Kotronias-Marjanovic System (8.Bc4 0-0 9.0-0 Be6) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Be7 (Stein) 8.Bc4 (Miles) 0-0 9.0-0 Be6 =/unclear

1. «Gallagher, Joseph (2550) - Nemet, Ivan (2381) B90 (46) 1-0, Saumnaun 2004»

2. «»

[B90-j16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Glek-Ubilava System (6.Be3 e5 7.Nf3 Qc7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Qc7 (Buslaev) +/=

1. «»

[B90-k16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Glek-Ubilava System (6.Be3 e5 7.Nf3 Qc7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Qc7 (Buslaev) 8.Bg5 +/=

1. «»

[B90-l16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Glek-Ubilava System (6.Be3 e5 7.Nf3 Qc7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Qc7 (Buslaev) 8.Be2 +/=

1. «»

[B90-m16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Glek-Ubilava System (6.Be3 e5 7.Nf3 Qc7 8.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Qc7 (Buslaev) 8.a4 (Aronin) +/=

1. «»

[B90-n16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Glek-Ubilava System (6.Be3 e5 7.Nf3 Qc7 8.a4) Reznicek Retort (8...h6) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Qc7 (Buslaev) 8.a4 (Aronin) h6 +/=

1. «»

2. «»

[B90-o16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Glek-Ubilava System (6.Be3 e5 7.Nf3 Qc7 8.a4) Marjanovic Retort (8...Be6) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Qc7 (Buslaev) 8.a4 (Aronin) Be6 +/=

1. «»

[B90-p16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Glek-Ubilava System (6.Be3 e5 7.Nf3 Qc7 8.a4) Buslaev Retort (8...b6) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Qc7 (Buslaev) 8.a4 (Aronin) b6 +/=

1. «»

[B90-q16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Glek-Ubilava System (6.Be3 e5 7.Nf3 Qc7 8.a4 Be7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Qc7 (Buslaev) 8.a4 (Aronin) Be7 +/=

1. «»

[B90-r16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Glek-Ubilava System (6.Be3 e5 7.Nf3 Qc7 8.a4 Be7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Qc7 (Buslaev) 8.a4 (Aronin) Be7 9.Be2 +/=

1. «»

[B90-s16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Glek-Ubilava System, ML: (7.Nf3 Qc7 8.a4 Be7 9.a5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Qc7 (Buslaev) 8.a4 (Aronin) Be7 9.a5 +/=

1. «»

[B90-t16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Glek-Ubilava System, ML: (7.Nf3 Qc7 8.a4 Be7 9.a5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Qc7 (Buslaev) 8.a4 (Aronin) Be7 9.a5 Nbd7 +/=

1. «»

[B90-u16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Glek-Ubilava System, ML: (7.Nf3 Qc7 8.a4 Be7 9.a5 0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Qc7 (Buslaev) 8.a4 (Aronin) Be7 9.a5 0-0 +/=

1. «»

[B90-v16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Glek-Ubilava System, ML: (8.a4 Be7 9.a5 0-0 10.Be2) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Qc7 (Buslaev) 8.a4 (Aronin) Be7 9.a5 0-0 10.Be2 +/=

1. «»

[B90-w16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Glek-Ubilava System, ML: (8.a4 Be7 9.a5 0-0 10.Be2 Nbd7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Aronin II) Qc7 (Buslaev) 8.a4 (Aronin) Be7 9.a5 0-0 10.Be2 Nbd7 +/=

1. «»

[B90-x16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) +/= (see also: B92)

1. «»

[B90-y16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Qc7 +/=

1. «»

[B90-z16*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Qc7 +/=

1. «»

[B90-a17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be7 (Vaitonis) (8.Be2 (see: B92)) +/=

1. «»

[B90-b17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be7 (Vaitonis) 8.Qd2 +/=

1. «»

[B90-c17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be7 (Vaitonis) 8.f3 +/= (see also: B90-l5*)

1. «»

[B90-d17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be7 (Vaitonis) 8.f3 0-0 +/= (see also: B90-q5*)

1. «»

[B90-e17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) +/= (8.Be2 (see: B92))

1. «»

[B90-f17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6) Kramer Retort (8.h3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.h3?! =/+

1. «»

[B90-g17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6) Sammul Retort (8.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.a4?! =/+

1. «»

[B90-h17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6) Bologan Retort (8.Qe2) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qe2! =/unclear

1. «»

[B90-i17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6) Inkiov Retort (8.Nd5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Nd5!? =

1. «»

[B90-j17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6) Inkiov Retort (8.Nd5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Nd5!? =

1. «»

[B90-k17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6) Inkiov Retort (8.Nd5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Nd5!? Nbd7 =

1. «»

[B90-l17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6) Yakovich Retort (8.f4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.f4! +/=

1. «»

[B90-m17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6) Yakovich Retort (8.f4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.f4! Qc7 +/=

1. «»

[B90-n17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6) Yakovich Retort (8.f4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.f4! Ng4 +/=

1. «Czebe, A. - Rajlich, Vasik B90 (41) 1/2-1/2, HUN Budapest, 1999»

[B90-o17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6) Yakovich Retort (8.f4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.f4! exf4 9.Bxf4 +/=

1. «»

[B90-p17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6) Yakovich Retort (8.f4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.f4! exf4 9.Bxf4 Nc6 =/unclear

1. «»

[B90-q17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6) Yakovich Retort (8.f4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.f4! exf4 9.Bxf4 Nc6 10.Qd2 =/unclear

1. «»

[B90-r17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6 8.Qd2) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! +/=

1. «»

[B90-s17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6 8.Qd2) Bilunova Retort (8...Nc6) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nc6 +/=

1. «»

[B90-t17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6 8.Qd2) Karp Retort (8...Qc7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Qc7 +/=

1. «»

[B90-u17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6 8.Qd2) Haces Retort (8...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! b5 (9.f3) =

1. «»

[B90-v17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6 8.Qd2) Evans Retort (8...Be7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Be7 (9.Be2 (see: B92))+(9.f3 (see: B90-z7* to B90-z9*)) =

1. «»

[B90-w17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System (6.Be3 e5 7.Nb3 Be6 8.Qd2) Evans Retort (8...Be7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Be7 9.0-0-0 =/+

1. «»

[B90-x17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 +/=

1. «»

[B90-y17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f4 (Smagin) +/=

1. «»

[B90-z17*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.0-0-0 (Littlewood) +/=

1. «Morozevich, Alexander (2732) - Topalov, Veselin (2735) B90 (32) 1-0 Monte Carlo 2004»

[B90-a18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) =/unclear

1. «»

[B90-b18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Derlink Retort (9...h6) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) h6 =/unclear

1. «»

[B90-c18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Sunye Neto Retort (9...Nb6) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) Nb6 +/=

1. «»

[B90-d18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Sunye Neto Retort (9...Nb6) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) Nb6 10.g4 +/=

1. «»

[B90-e18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Pavlov Retort (9...Qc7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) Qc7 +/=

1. «»

[B90-f18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Pavlov Retort (9...Qc7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) Qc7 10.0-0-0 +/=

1. «»

[B90-g18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Pavlov Retort (9...Qc7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) Qc7 10.g4 (h6) +/=

1. «»

[B90-h18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Ribli Retort (9...Rc8) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) Rc8 +/=

1. «»

[B90-i18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Ribli Retort (9...Rc8) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) Rc8 10.0-0-0 +/=

1. «»

[B90-j18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Ribli Retort (9...Rc8) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) Rc8 10.g4 =

1. «»

[B90-k18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Bacso Retort (9...h5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) h5 =

1. «»

[B90-l18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Bacso Retort (9...h5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) h5 10.Be2 =

1. «»

[B90-m18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Bacso Retort (9...h5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) h5 10.Nd5 +/=

1. «»

[B90-n18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Bacso Retort (9...h5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) h5 10.a4 +/=

1. «»

[B90-o18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Bacso Retort (9...h5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) h5 10.0-0-0 (b5) (10...Be7 (see: B90-n8*)) =/+

1. «»

[B90-p18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Bacso Retort (9...h5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) h5 10.0-0-0 Rc8 =/+

1. «»

[B90-q18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Bacso Retort (9...h5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) h5 10.0-0-0 +/=

1. «»

[B90-r18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Stean Retort (9...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) b5 +/=

1. «»

[B90-s18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Stean Retort (9...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) b5 10.Nd5?! (Peters) =/+

1. «»

[B90-t18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Stean Retort (9...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) b5 10.Be2?! (Rossmann) =/+

1. «»

[B90-u18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Stean Retort (9...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) b5 10.0-0-0 (Rossmann) (Be7 (see: B90-q8*)) =/+

1. «»

[B90-v18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Stean Retort (9...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) b5 10.0-0-0 (Rossmann) h5 =/unclear

1. «»

[B90-w18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Stean Retort (9...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) b5 10.0-0-0 (Rossmann) Rc8 =/unclear

1. «»

[B90-x18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Stean Retort (9...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) b5 10.0-0-0 (Rossmann) Nb6 +/=

1. «»

[B90-y18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Stean Retort (9...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) b5 10.g4 (Hartston) =

1. «»

[B90-z18*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Stean Retort (9...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) b5 10.g4 (Hartston) h6 =

1. «»

[B90-a19*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Stean Retort (9...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) b5 10.g4 (Hartston) Be7 =

1. «»

[B90-b19*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Stean Retort (9...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) b5 10.g4 (Hartston) Nb6 =

1. «»

[B90-c19*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Stean Retort (9...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) b5 10.g4 (Hartston) Nb6 11.g5 =

1. «»

[B90-d19*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Stean Retort (9...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) b5 10.a4 (Amason) (see also: B90-v12*) +/=

1. «»

[B90-e19*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Byrne-Balashov System, ML: (7.Nb3 Be6 8.Qd2 Nbd7 9.f3) Stean Retort (9...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.Qd2! Nbd7 9.f3 (Byrne) b5 10.a4 (Amason) b4 11.Nd5 (see also: B90-v12*) +/=

1. «»

[B90-f19*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Smimov-Likavsky System (7.Nb3 Be6 8.f3) Stean Retort (9...b5) 1.e4 c5 2.Cf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.f3 +/=

1. «»

[B90-g19*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Smimov-Likavsky System (7.Nb3 Be6 8.f3) Stean Retort (9...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.f3 Nbd7 9.g4 (Speelman) +/=

1. «»

[B90-h19*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Smimov-Likavsky System (7.Nb3 Be6 8.f3) Stean Retort (9...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.f3 Nbd7 9.g4 (Speelman) Nb6 10.g5 Nh5 +/=

1. «»

[B90-i19*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) Smimov-Likavsky System (7.Nb3 Be6 8.f3) Stean Retort (9...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Be3 (BWS: (Black Wide Spectrum)) e5 7.Nb3 (Cardoso) Be6 (Jezek) 8.f3 Nbd7 9.g4 (Speelman) Nb6 10.g5 Nh5 11.Qd2 Be7 (12.Qf2) +/=

1. «Leko, Peter (2722) - Kasparov, Garry (2831) B90 (41) 1/2-1/2, XXI Linares ESP (3), 2004»

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