ECO B73

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

2 named opening lines are classified under ECO code B73.

• Sicilian Defense: Dragon Variation, Classical Variation, Battery Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O O-O 8.Be3 Nc6 9.Qd2
• Sicilian Defense: Dragon Variation, Classical Variation, Zollner Gambit — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Be3 Bg7 6.Be2 Nf6 7.Nc3 O-O 8.O-O d6 9.f4 Qb6 10.e5