ECO B50

Sicilian Defense: Kopec System

Sicilian Defense: Kopec System is a chess opening classified under ECO B50. Its defining line here is 1. e4 c5 2. Nf3 d6 3. Bd3.

Sicilian Defense: Kopec System — board position

1. e4 c5 2. Nf3 d6 3. Bd3

The diagram shows the position after 1. e4 c5 2. Nf3 d6 3. Bd3. Play through it move by move in the interactive explorer.

Opening name, ECO code, and main line come from the Lichess open chess openings dataset.

Part of