OPENINGS THEORY

- ECBX: ECO CODES BASE -
(ECB Classification)

- B90 v - a13* to z15*

[B90-a13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) = (see also: B70, B75, B77, B86, B87, B88, B95)

1. «»

[B90-b13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) Wexler Retort (6...Bd7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) Bd7?! +/=

1. «»

[B90-c13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) Milev Retort (6...e5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) e5 (7.Nb3) +/=

1. «»

[B90-d13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) Milev Retort (6...e5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) e5 7.Nf5 (Bronstein) +/=

1. «»

[B90-e13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) Milev Retort (6...e5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) e5 7.Nf3 (Zhugder) +/=

1. «»

[B90-f13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) Milev Retort (6...e5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) e5 7.Nde2 (Ciocaltea) +/=

1. «»

[B90-g13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) Moisieev Retort (6...g6) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) g6 (see also: B70, B72, B77, B78) +/=

1. «»

[B90-h13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) Gurgenidze Retort (6...Nbd7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) Nbd7 (see also: B51, B86, B87, B94) +/=

1. «»

2. «»

[B90-i13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) Gurgenidze Retort (6...Nbd7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) Nbd7 7.0-0 +/=

1. «»

2. «»

[B90-j13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) Larsen Retort (6...Qc7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) Qc7 (7...e6 (see: B86, B87, B88, B95)) +/=

1. «»

[B90-k13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) Larsen Retort (6...Qc7) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) Qc7 7.Bb3 (see also: B86, B87, B88, B95) +/=

1. «Stein, Leonid - Chistiakov, Andrey B90 (21) 1-0, Leningrad 1960»

[B90-l13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) Klein Retort (6...Nc6) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) Nc6 (see also: B33, B57, B60, B72, B75, B77, B78, B88, B89) +/=

1. «»

[B90-m13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) Klein Retort (6...Nc6) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) Nc6 7.Nxc6 (Tartakower) bxc6 +/=

1. «»

[B90-n13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) Aronin Retort (6...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) b5 (see also: B87) (7.Bd3?! =/+) +/=

1. «»

2. «»

[B90-o13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) Aronin Retort (6...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) b5 7.Bd5 +/=

1. «»

[B90-p13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) Aronin Retort (6...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) b5 7.Bb3 (Levenfish) +/=

1. «»

[B90-q13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) Aronin Retort (6...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) b5 7.Bb3 (Levenfish) Bb7 (see also: B87) +/=

1. «»

[B90-r13*] - SDN: Sicilian defence Najdorf variation (5...a6) Lovenfish Attack (6.Bc4) Aronin Retort (6...b5) 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 (WWS: (White Wide Spectrum)) 6.Bc4 (BWS: (Black Wide Spectrum)) b5 7.Bb3 (Levenfish) Bb7 8.0-0 (see also: B87) +/=

1. «»

[B90-s13*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) 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))+(see also: B42, B77, B80, B81, B82, B84, B85, B87, B89, B92)+(6...g6 (see: B70, B72, B75, B76, B77, B92, B93)) +/=

1. «Adams, Michael (2741) - Anand, Viswanathan (2786) B90 (28) 1/2-1/2, SuperGM Linares ESP (7) 2005»

2. «Adams, Michael (2741) - Kasparov, Garry (2804) B90 (26) 0-1, XXII SuperGM Linares ESP (12), 2005»

[B90-t13*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Gouder Retort (6...Bd7) 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)) Bd7 (see also: B54, B56, B73, B84) +/=

1. «»

[B90-u13*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Hadri Retort (6...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)) Qc7 (see also: B35, B84, B85, B92) +/=

1. «»

[B90-v13*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Kalendovsky Retort (6...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)) b5 (see also: B42, B75, B80, B84) +/=

1. «Fick II, Douglas (1663) - LeMaster, Terry (1742) B90 (42) 1-0, Michigan Open - Reserve 2004»

[B90-w13*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Kalendovsky Retort (6...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)) b5 7.f3 (see also: B75, B80, B84) +/=

1. «Kramnik, Vladimir (2754) - Topalov, Veselin (2757) B90 (20) 0-1, Corus A Wijk aan Zee NED (2), 2005»

[B90-x13*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Petrosian Retort (6...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)) Nbd7 (see also: B80, B82, B84, B86, B92, B93) (7.Be2 (see: B84, B92)) +/=

1. «»

[B90-y13*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Herink Retort (6...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)) Nc6 (see also: B33, B57, B58, B60, B72, B73, B74, B75, B76, B77, B80, B81, B84, B85, B88, B89, B92, B93) (7.Be2 (see: B84, B92)) +/=

1. «»

[B90-z13*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Herink Retort (6...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)) Nc6 7.f3 (Hemasian) (see also: B73, B75, B76, B77, B80, B83, B89) +/=

1. «»

[B90-a14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System (6...Ng4) 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)) Ng4!? +/=

1. «»

[B90-b14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System (6...Ng4) Stahl Retort (7.Bd2) 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)) Ng4!? 7.Bd2?! =/+

1. «»

[B90-c14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System (6...Ng4) Havelaar Retort (7.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)) Ng4!? 7.Bc4?! =/+

1. «Havalaar, T. - Lansbergen, A B90 (13) 1-0, Alkmaar ACCOM op, 1991»

[B90-d14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System (6...Ng4) Dupree Retort (7.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)) Ng4!? 7.Qd2?! =/+

1. «»

[B90-e14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System (6...Ng4) Szalanczy Retort (7.Bc1) 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)) Ng4!? 7.Bc1 = (see also: B48, B70, B75, B80, B81, B84, B85, B87, B92, B93, B96, B97, B99)

1. «»

[B90-f14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System (6...Ng4) Szalanczy Retort (7.Bc1) 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)) Ng4!? 7.Bc1 Nf6 = (see also: B42, B62, B66, B72, B73, B74, B85, B80 to B99)+ (8.a4 (see: B90-f** etc))+ (8.g3 (see: B91))+(8.f3 (see: B90-s4* etc))+(8.f4 (see: B93))+ (8.Bc4 (see: B90-a13* etc))+ (8.Be3 (see: B90-s13* etc))+ (8.Be2 (see: B92))+(8.Bg5 (see: B94 to B99))

1. «»

[B90-g14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System (6.Be3 Ng4 7.Bg5) 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)) Ng4!? 7.Bg5 (Bomgaesser) +/=

1. «»

[B90-h14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System (6.Be3 Ng4 7.Bg5) 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)) Ng4!? 7.Bg5 (Bomgaesser) Nc6?! +/= (see also: B56)

1. «»

[B90-i14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System (6.Be3 Ng4 7.Bg5 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 +/=

1. «Timman, Jan (2630) - Anand, Viswanathan (2789) B90 (45) 0-1, Netherlands 2002»

[B90-j14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System (6.Be3 Ng4 7.Bg5 h6 8.Bh4) 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) +/=

1. «»

[B90-k14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System (7.Bg5 h6 8.Bh4 g5) 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 +/=

1. «»

[B90-l14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System (7.Bg5 h6 8.Bh4 g5 9.Bg3) 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 +/=

1. «»

[B90-m14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (7.Bg5 h6 8.Bh4 g5 9.Bg3 Bg7) 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 +/=

1. «»

[B90-n14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (7.Bg5 h6 8.Bh4 g5 9.Bg3 Bg7) Luethgens Retort (10.Nf5) 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Nf5? +/=

1. «»

[B90-o14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (7.Bg5 h6 8.Bh4 g5 9.Bg3 Bg7) Wagman Retort (10.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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.f3? Ne3 -/+

1. «»

[B90-p14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (7.Bg5 h6 8.Bh4 g5 9.Bg3 Bg7) Pazalovic Retort (10.h4) 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.h4?! (Qb6!) =/+

1. «»

[B90-q14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (7.Bg5 h6 8.Bh4 g5 9.Bg3 Bg7) Turzo Retort (10.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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Bc4 +/=

1. «»

[B90-r14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (7.Bg5 h6 8.Bh4 g5 9.Bg3 Bg7) Lepelletier Retort (10.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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Qd2 +/=

1. «»

[B90-s14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (7.Bg5 h6 8.Bh4 g5 9.Bg3 Bg7) Lepelletier Retort (10.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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Qd2 Nc6 +/=

1. «»

[B90-t14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (7.Bg5 h6 8.Bh4 g5 9.Bg3 Bg7) Lepelletier Retort (10.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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Qd2 Nc6 11.Nb3 +/=

1. «»

[B90-u14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (7.Bg5 h6 8.Bh4 g5 9.Bg3 Bg7) Lepelletier Retort (10.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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Qd2 Nc6 11.Nb3 b5 +/=

1. «»

[B90-v14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (7.Bg5 h6 8.Bh4 g5 9.Bg3 Bg7) Lepelletier Retort (10.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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Qd2 Nc6 11.Nb3 Be6 +/=

1. «»

[B90-w14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (7.Bg5 h6 8.Bh4 g5 9.Bg3 Bg7) Nieminen Retort (10.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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.h3 +/=

1. «»

[B90-x14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (7.Bg5 h6 8.Bh4 g5 9.Bg3 Bg7) Nieminen Retort (10.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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.h3 Nf6 +/=

1. «»

[B90-y14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (7.Bg5 h6 8.Bh4 g5 9.Bg3 Bg7) Nieminen Retort (10.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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.h3 Ne5 11.Be2 +/=

1. «»

[B90-z14*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (7.Bg5 h6 8.Bh4 g5 9.Bg3 Bg7) Nieminen Retort (10.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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.h3 Ne5 11.f3 +/=

1. «Kasparov, Garry - Polgar Judit B90 (27) 1/2-1/2, Linares (2) 2001»

[B90-a15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (7.Bg5 h6 8.Bh4 g5 9.Bg3 Bg7) Nieminen Retort (10.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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.h3 Ne5 11.Nf5 +/=

1. «»

[B90-b15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (8.Bh4 g5 9.Bg3 Bg7 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Be2 (Romanishin) +/=

1. «»

[B90-c15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (8.Bh4 g5 9.Bg3 Bg7 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Be2 (Romanishin) Ne5 +/=

1. «»

[B90-d15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (8.Bh4 g5 9.Bg3 Bg7 10.Be2 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Be2 (Romanishin) h5 +/=

1. «»

[B90-e15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (8.Bh4 g5 9.Bg3 Bg7 10.Be2 h5) Soos Retort (11.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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Be2 (Romanishin) h5 11.h3 +/=

1. «»

[B90-f15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (8.Bh4 g5 9.Bg3 Bg7 10.Be2 h5) Szieberth Retort (11.Nf5) 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Be2 (Romanishin) h5 11.Nf5 +/=

1. «»

[B90-g15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (8.Bh4 g5 9.Bg3 Bg7 10.Be2 h5) Romanishin Retort (11.h4) 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Be2 (Romanishin) h5 11.h4?! =/+

1. «»

[B90-h15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (8.Bh4 g5 9.Bg3 Bg7 10.Be2 h5) Romanishin Retort (11.h4) 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Be2 (Romanishin) h5 11.h4?! gxh4 =/+

1. «»

[B90-i15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (8.Bh4 g5 9.Bg3 Bg7 10.Be2 h5) Romanishin Retort (11.h4) 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Be2 (Romanishin) h5 11.h4?! gxh4 12.Bxh4 =/+

1. «»

[B90-j15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (9.Bg3 Bg7 10.Be2 h5 11.Bxg4) 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Be2 (Romanishin) h5 11.Bxg4 (Kuehn) hxg4 +/=

1. «»

[B90-k15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (10.Be2 h5 11.Bxg4 Bxg4 12.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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Be2 (Romanishin) h5 11.Bxg4 (Kuehn) Bxg4 12.f3 +/=

1. «»

[B90-l15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (10.Be2 h5 11.Bxg4 Bxg4 12.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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Be2 (Romanishin) h5 11.Bxg4 (Kuehn) Bxg4 12.f3 Be6 +/=

1. «»

[B90-m15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (11.Bxg4 Bxg4 12.f3 Bd7) 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Be2 (Romanishin) h5 11.Bxg4 (Kuehn) Bxg4 12.f3 Bd7 +/=

1. «»

[B90-n15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (11.Bxg4 Bxg4 12.f3 Bd7 13.Bf2) 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Be2 (Romanishin) h5 11.Bxg4 (Kuehn) Bxg4 12.f3 Bd7 13.Bf2 +/=

1. «»

[B90-o15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (12.f3 Bd7 13.Bf2 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Be2 (Romanishin) h5 11.Bxg4 (Kuehn) Bxg4 12.f3 Bd7 13.Bf2 Nc6 +/=

1. «»

[B90-p15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Anand-Kasparov System, ML: (11.Bxg4 Bxg4 12.f3 Bd7 13.Bf2) 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)) Ng4!? 7.Bg5 (Bomgaesser) h6 8.Bh4 (Romanishin) g5 9.Bg3 Bg7 10.Be2 (Romanishin) h5 11.Bxg4 (Kuehn) Bxg4 12.f3 Bd7 13.Bf2 Nc6 14.Qd2 (Ne5) +/=

1. «»

[B90-q15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) 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 +/=

1. «»

[B90-r15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) 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.Nf5?)

1. «»

[B90-s15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) 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.Nde2 (Aronin I) +/=

1. «»

[B90-t15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) 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) +/=

1. «»

[B90-u15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) 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) Nbd7 (Vaisman) /unclear

1. «»

[B90-v15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) 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) Bg4 (Christodoulou) /unclear (see also: B56)

1. «»

[B90-w15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) 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) Nc6 (Damijanovic) +/= (see also: B33, B53, B54)

1. «»

[B90-x15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) 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) b5 (Frank) =

1. «»

[B90-y15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) 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) Be6 (De Firmian) =/unclear

1. «»

[B90-z15*] - SDN: Sicilian defence Najdorf variation (5...a6) Byrne (English) Attack (6.Be3) Jezek Retort (6...e5) 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) h6 =/unclear

1. «»

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