OPENINGS THEORY

- ECBX: ECO CODES BASE -
(ECB Classification)

- B92 ii - i*** to x6*

[B92-i***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! =/+

1. «»

[B92-j***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Nbd7 =/+

1. «»

[B92-k***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Nc6 =/+

1. «»

[B92-l***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Qc7 =/+

1. «»

[B92-m***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! 0-0 (Liepnieks) (9.Qd2) (9.0-0: (see: 8.0-0)) =/+

1. «Grossguth, C. - Fischer, Robert, James B92 (29) 0-1, US Junior Ch. (2), Philadelphia, 1956»

2. «Grossguth, C. - Fischer, Robert, James B92 (29) 0-1, US Junior Ch. (2), Philadelphia, 1956»

[B92-n***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! 0-0 (Liepnieks) 9.a4 =/+

1. «»

[B92-o***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! 0-0 (Liepnieks) 9.g4! +/=

1. «»

2. «»

[B92-p***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! 0-0 (Liepnieks) 9.g4! Be6 10.g5 Nfd7 =/unclear

1. «»

[B92-q***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Be6 (Opovcensky) (WWS: (White Wide Spectrum)) (9.Bf3) =/+

1. «»

[B92-r***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Be6 (Opovcensky) (WWS: (White Wide Spectrum)) 9.f3 (Karakiajic) =/+

1. «Goldhamer - Fischer, Robert James B92 (28) 0-1, Washington 1956»

[B92-s***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Be6 (Opovcensky) (WWS: (White Wide Spectrum)) 9.Qd2 (Ippolitti) =/+

1. «»

[B92-t***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Be6 (Opovcensky) (WWS: (White Wide Spectrum)) 9.Qd2 (Ippolitti) Nbd7 =/+

1. «»

[B92-u***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Be6 (Opovcensky) (WWS: (White Wide Spectrum)) 9.a4 (Witkowski) =/+

1. «»

[B92-v***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Be6 (Opovcensky) (WWS: (White Wide Spectrum)) 9.a4 (Witkowski) Nbd7 =/+

1. «»

[B92-w***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Be6 (Opovcensky) (WWS: (White Wide Spectrum)) 9.a4 (Witkowski) 0-0! =/+

1. «»

[B92-x***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Be6 (Opovcensky) (WWS: (White Wide Spectrum)) 9.f4 (Hartmann) =/+

1. «»

[B92-y***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Be6 (Opovcensky) (WWS: (White Wide Spectrum)) 9.f4 (Hartmann) Qc7 =/unclear

1. «»

[B92-z***] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Be6 (Opovcensky) (WWS: (White Wide Spectrum)) 9.f4 (Hartmann) 0-0! =/+

1. «»

[B92-a4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Be6 (Opovcensky) (WWS: (White Wide Spectrum)) 9.Nd5! (Stulik) (Bxd5) +/=

1. «»

2. «»

[B92-b4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Be6 (Opovcensky) (WWS: (White Wide Spectrum)) 9.Nd5! (Stulik) Nxd5 10.exd5 +/=

1. «»

[B92-c4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Be6 (Opovcensky) (WWS: (White Wide Spectrum)) 9.Nd5! (Stulik) Nxd5 10.exd5 Bf5 11.Qd2 +/=

1. «Pinkovetsky, Semen U. (2547) - Unen, Hans van (2423) B92 (15) 1/2-1/2, WCAN2202 ICCF Email, 2003»

[B92-d4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Be6 (Opovcensky) (WWS: (White Wide Spectrum)) 9.Nd5! (Stulik) Nbd7 =/unclear

1. «»

[B92-e4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Be6 (Opovcensky) (WWS: (White Wide Spectrum)) 9.Nd5! (Stulik) Nbd7 10.Qd3 (Tseitlin) (0-0) +/=

1. «Kupsys, Alfonsas (2574) - Jensen, Jens Otto (2500) B92 (42) 0-1, Norbalt Cup 1 final, ICCF Email, 2002»

[B92-f4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7) Stulik Retort (8.Be3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.Be3?! Be6 (Opovcensky) (WWS: (White Wide Spectrum)) 9.Nd5! (Stulik) Nbd7 10.Qd3 (Tseitlin) Bxd5 11.exd5 +/=

1. «»

[B92-g4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) (h6? +/=) =

1. «»

[B92-h4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Nc6 (Pomar Salamanca) +/=

1. «»

[B92-i4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) b5 (Blau) =

1. «»

[B92-j4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Nbd7 (Rossolimo) =

1. «»

[B92-k4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Qc7 (Soloviev) =

1. «»

[B92-l4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) (9.Kh1) =/unclear

1. «»

[B92-m4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.Bg5 (Bronstein) (0-0) =/+

1. «»

[B92-n4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.Bg5 (Bronstein) Nbd7 (see also: B92-h*) =/+

1. «»

[B92-o4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.Bg5 (Bronstein) Nbd7 (see also: B92-h*) 10.Qd2 =/+

1. «»

[B92-p4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.a4 (Skuja) (Nbd7) =/+

1. «»

[B92-q4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.f4 (Corlever) +/=

1. «»

[B92-r4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.f4 (Cortlever) exf4 +/=

1. «»

[B92-s4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.f4 (Cortlever) Dc7 +/=

1. «Wchess 2000 - Schredder 4.0 B92 (59) 1-0, Private computer chess tournament, Ahrensburg (2) 2000»

[B92-t4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.f4 (Cortlever) Dc7 10.Be3 (Hatmann) =/unclear

1. «»

[B92-u4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.f4 (Cortlever) Dc7 10.f5 (Cortlever) Bc4 =/unclear

1. «»

[B92-v4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.f4 (Cortlever) Dc7 10.Kh1! (Geller) +/=

1. «»

[B92-w4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.f4 (Cortlever) Dc7 10.Kh1! (Geller) Nbd7 +/=

1. «»

[B92-x4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.f4 (Cortlever) Dc7 10.Kh1! (Geller) 0-0 +/=

1. «»

[B92-y4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.f4 (Cortlever) Dc7 10.Kh1! (Geller) 0-0 11.a4 +/=

1. «»

2. «»

[B92-z4*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.f4 (Cortlever) Dc7 10.Kh1! (Geller) 0-0 11.a4 Nbd7 12.Be3 +/=

1. «»

[B92-a5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) Karpov-Polugaevsky Line 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.f4 (Cortlever) Dc7 10.Kh1! (Geller) 0-0 11.a4 Nbd7 12.Be3 exf4 +/=

1. «Karpov, Anatoly - Polugaevsky, Lev B92 (40) 1-0, Moscow 1974»

[B92-b5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.f4 (Cortlever) Dc7 10.a4 (Davis) +/=

1. «»

[B92-c5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.f4 (Cortlever) Dc7 10.a4 (Davis) 0-0 +/=

1. «»

[B92-d5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.f4 (Cortlever) Dc7 10.a4 (Davis) Nbd7 (11.Be3) +/=

1. «»

[B92-e5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.f4 (Cortlever) Dc7 10.a4 (Davis) Nbd7 11.Kh1 +/=

1. «»

[B92-f5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.Be3?! (Broadbent) (0-0 (see: 8...0-0)) =/+

1. «»

2. «»

[B92-g5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.Be3?! (Broadbent) Nc6 +/=

1. «»

[B92-h5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.Be3?! (Broadbent) Qc7 +/=

1. «»

[B92-i5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.Be3?! (Broadbent) Qc7 10.f4 =

1. «»

[B92-j5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.Be3?! (Broadbent) Nbd7! (Opovcensky) (10.Bf3) (10.Kh1) (10.Qd2) =/+

1. «»

[B92-k5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.Be3?! (Broadbent) Nbd7! (Opovcensky) 10.f3 =/+

1. «»

[B92-l5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.Be3?! (Broadbent) Nbd7! (Opovcensky) 10.f4 =/+

1. «»

[B92-m5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.Be3?! (Broadbent) Nbd7! (Opovcensky) 10.f4 Qc7 11.a4 =/+

1. «»

[B92-n5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.Be3?! (Broadbent) Nbd7! (Opovcensky) 10.a4 =/+

1. «»

[B92-o5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.Be3?! (Broadbent) Nbd7! (Opovcensky) 10.a4 Qc7 +/=

1. «»

[B92-p5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.Be3?! (Broadbent) Nbd7! (Opovcensky) 10.a4 Qc7 11.a5 +/=

1. «»

[B92-q5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.Be3?! (Broadbent) Nbd7! (Opovcensky) 10.a4 0-0 =/+

1. «»

[B92-r5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.Be3?! (Broadbent) Nbd7! (Opovcensky) 10.a4 0-0 11.a5?! =/+

1. «»

[B92-s5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) Be6 (Opovcensky) 9.Be3?! (Broadbent) Nbd7! (Opovcensky) 10.a4 0-0 11.Qd2 +/=

1. «»

[B92-t5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) (9.Bf3?) =/unclear

1. «»

[B92-u5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Puc Retort (9.Qd3) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.Qd3 +/=

1. «»

[B92-v5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Kuczynski Retort (9.Re1) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.Re1 (Be6) =/unclear

1. «»

[B92-w5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Kalkstein Retort (9.Bg5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.Bg5?! (Nbd7 =/+) =/+

1. «Bisguier, Arthur (2472) - Fischer, Robert james (2298) B92 (33) 1/2-1/2, US Open Cleveland, OH (5), 1957»

[B92-x5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Kalkstein Retort (9.Bg5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.Bg5?! Be6 =/+

1. «»

[B92-y5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Randviir Retort (9.f4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.f4?! (exf4) =/+

1. «»

[B92-z5*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Randviir Retort (9.f4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.f4?! Nbd7 =/+

1. «»

[B92-a6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Randviir Retort (9.f4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.f4?! Qc7 (10.Kh1) =/+

1. «»

[B92-b6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Randviir Retort (9.f4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.f4?! b5! (10.Bf3) (10.a4) =/+

1. «»

[B92-c6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Randviir Retort (9.f4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.f4?! b5! 10.a3 =/+

1. «»

[B92-d6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 (Qc7) =/+

1. «»

[B92-e6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 b6 =/unclear

1. «»

[B92-f6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 Nc6 (10.Bg5) =/unclear

1. «»

[B92-g6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 Nc6 10.Kh1 =/+

1. «»

[B92-h6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 Nc6 10.Be3 =/+

1. «»

[B92-i6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 Nc6 10.Be3 Be6 =/+

1. «»

[B92-j6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 Nc6 10.Be3 Be6 11.f4 =/+

1. «»

[B92-k6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 Nc6 10.f4 =/unclear

1. «»

[B92-l6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 Be6 (10.Be3 (see: 9.Be3)) =/unclear

1. «»

[B92-m6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 Be6 10.f4 (Nbd7) =

1. «»

[B92-n6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 Be6 10.f4 exf4 =

1. «»

[B92-o6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 Be6 10.f4 exf4 11.Bxf4 Nc6 =

1. «»

[B92-p6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 Be6 10.f4 exf4 11.Bxf4 Nc6 12.Kh1 (Ne5?! +/=) =

1. «»

[B92-q6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 Be6 10.f4 exf4 11.Bxf4 Nc6 12.Kh1 d5 =

1. «»

[B92-r6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 Be6 10.f4 exf4 11.Bxf4 Nc6 12.Kh1 Rc8 =/+

1. «»

[B92-s6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 Be6 10.f4 Qc7 +/= (11.f5) (11.Be3 (see: 9.Be3))

1. «»

[B92-t6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 Be6 10.f4 Qc7 11.Kh1 +/=

1. «»

[B92-u6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 Be6 10.f4 Qc7 11.Kh1 Nbd7 +/=

1. «»

[B92-v6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5! 7.Nb3 (Stulik) Be7 (Opovcensky) 8.0-0 (Palka) (BWS: (Black Wide Spectrum)) 0-0 (Stoeckl) (WWS: (White Wide Spectrum)) 9.a4 Be6 10.f4 Qc7 11.Kh1 Nbd7 12.a5 +/=

1. «»

[B92-w6*] - SDN: Sicilian defence Najdorf, Opovcensky var. (6.Be2) Opovcensky Retort (6...e5) Penrose-Najdorf System (6.Be2 e5 7.Nb3 Be7 8.0-0 0-0) Solmanis Retort (9.a4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 (BWS: (Black Wide Spectrum)) e5!