ECO B06

ECO B00–B99 — Semi-Open Games other than the French: 1.e4 answered by the Sicilian, Caro-Kann, Scandinavian, Alekhine, Pirc and more.

44 named opening lines are classified under ECO code B06.

• Modern Defense — 1.e4 g6
• Modern Defense: Anti-Modern — 1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.Bc4 d6 5.Qe2
• Modern Defense: Bishop Attack — 1.e4 g6 2.d4 Bg7 3.Bc4
• Modern Defense: Bishop Attack, Bücker Gambit — 1.e4 g6 2.d4 Bg7 3.Bc4 b5
• Modern Defense: Bishop Attack, Monkey's Bum — 1.e4 g6 2.Bc4 Bg7 3.Qf3 e6 4.d4 Bxd4
• Modern Defense: Dunworthy Variation — 1.e4 g6 2.d4 Bg7 3.c4 d5 4.exd5 c6 5.dxc6 Bxd4
• Modern Defense: Fianchetto Gambit — 1.e4 g6 2.d4 f5
• Modern Defense: Gurgenidze Defense — 1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.f4 d5 5.e5 h5
• Modern Defense: Lizard Defense, Mittenberger Gambit — 1.e4 g6 2.d4 Bg7 3.Nc3 d5
• Modern Defense: Masur Gambit — 1.e4 g6 2.d4 Nh6 3.Nc3 f5 4.Bxh6 Bxh6 5.exf5 O-O
• Modern Defense: Modern Pterodactyl — 1.e4 g6 2.d4 Bg7 3.Nc3 c5
• Modern Defense: Mongredien Defense, with Nc3 — 1.e4 g6 2.d4 Bg7 3.Nc3 b6
• Modern Defense: Mongredien Defense, with Nf3 — 1.e4 g6 2.d4 Bg7 3.Nf3 b6
• Modern Defense: Norwegian Defense — 1.e4 g6 2.d4 Nf6
• Modern Defense: Norwegian Defense, Norwegian Gambit — 1.e4 g6 2.d4 Nf6 3.e5 Nh5 4.Be2 d6
• Modern Defense: Pseudo-Austrian Attack — 1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.f4
• Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Declined — 1.e4 g6 2.d4 Bg7 3.c4 c5 4.Nf3 d6 5.Be2 Qa5+
• Modern Defense: Standard Defense — 1.e4 g6 2.d4 Bg7 3.Nc3 d6
• Modern Defense: Standard Line — 1.e4 g6 2.d4 Bg7 3.Nc3
• Modern Defense: Three Pawns Attack — 1.e4 g6 2.d4 Bg7 3.f4
• Modern Defense: Two Knights Variation — 1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Nf3
• Modern Defense: Two Knights Variation, Suttles Variation — 1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.Nf3 d6
• Modern Defense: Two Knights Variation, Suttles Variation, Tal Gambit — 1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Nf3 c6 5.Bg5 Qb6 6.Qd2 Qxb2
• Modern Defense: Westermann Gambit — 1.e4 g6 2.d4 Bg7 3.Bd2
• Modern Defense: Wind Gambit — 1.e4 g6 2.d4 Bg7 3.Bd3
• Pterodactyl Defense: Austrian, Austriadactylus Western — 1.e4 g6 2.d4 Bg7 3.f4 c5 4.Nf3 Qa5+
• Pterodactyl Defense: Austrian, Grand Prix Pterodactyl — 1.e4 g6 2.Nc3 Bg7 3.f4 c5 4.Nf3 Qa5
• Pterodactyl Defense: Austrian, Pteranodon — 1.e4 g6 2.d4 Bg7 3.f4 c5 4.c3 Qa5
• Pterodactyl Defense: Central, Anhanguera — 1.e4 g6 2.d4 Bg7 3.c4 c5 4.Nc3 d6 5.Be3 Qa5
• Pterodactyl Defense: Central, Benoni Quetzalcoatlus — 1.e4 g6 2.d4 Bg7 3.c4 c5 4.d5 d6 5.Nc3 Qa5
• Pterodactyl Defense: Central, Quetzalcoatlus Gambit — 1.e4 g6 2.d4 Bg7 3.c4 c5 4.Nc3 d6 5.dxc5 Qa5
• Pterodactyl Defense: Eastern, Anhanguera — 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.Be3
• Pterodactyl Defense: Eastern, Benoni — 1.d4 g6 2.e4 Bg7 3.Nc3 c5 4.d5
• Pterodactyl Defense: Eastern, Benoni Pteranodon — 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.d5 Bxc3+ 5.bxc3 Qa5
• Pterodactyl Defense: Eastern, Benoni Pterodactyl — 1.d4 g6 2.Nc3 Bg7 3.e4 c5 4.d5 Qa5
• Pterodactyl Defense: Eastern, Pteranodon — 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.dxc5 Bxc3+ 5.bxc3 Qa5
• Pterodactyl Defense: Eastern, Rhamphorhynchus — 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.dxc5 Qa5
• Pterodactyl Defense: Fianchetto, King Pterodactyl — 1.e4 g6 2.d4 Bg7 3.g3 c5 4.Nf3 Qa5+
• Pterodactyl Defense: Fianchetto, Rhamphorhynchus — 1.e4 g6 2.d4 Bg7 3.g3 c5 4.dxc5 Qa5+
• Pterodactyl Defense: Sicilian, Quetzalcoatlus — 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.Nf3 Qa5 5.Be2 d6
• Pterodactyl Defense: Sicilian, Siroccopteryx — 1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.Nf3 Qa5 5.Bc4
• Pterodactyl Defense: Western, Anhanguera — 1.e4 g6 2.d4 Bg7 3.Nf3 c5 4.Be3 Qa5+
• Pterodactyl Defense: Western, Siroccopteryx — 1.e4 g6 2.Nf3 Bg7 3.d4 c5 4.Bc4 cxd4 5.Nxd4 Qa5+
• Rat Defense: Accelerated Gurgenidze — 1.e4 g6 2.d4 d6 3.Nc3 c6