ECO B53

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 B53.

• Sicilian Defense: Chekhover Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4
• Sicilian Defense: Chekhover Variation, Zaitsev Defense — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Qd7