Sicilian Defense: Big Clamp Formation
1.e4 c5 2.d3 Nc6 3.c3 d6 4.f4
- 1. 2. 3. 4.
The Sicilian Defense: Big Clamp Formation is a chess opening classified under ECO code B20 (Semi-Open games). It is a variation of the Sicilian Defense family. Step through the moves on the board above, then play the line yourself or review it with the built-in engine.