Sicilian Defense: Kan Variation, Swiss Cheese Variation

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 g6

ECO B42

The Sicilian Defense: Kan Variation, Swiss Cheese Variation is a chess opening line in the Sicilian Defense complex, reached after 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 g6.

It is catalogued under code B42 in the Encyclopaedia of Chess Openings (ECO).

The defining move g6 is chosen by Black on move 5.

Study this line with a grandmaster

This position is covered in the Attacking the Paulsen Sicilian course: a GM-authored repertoire you study move by move, then practice against a human-like AI opponent.

Every chess term used here is defined in the chess terms glossary. Browse all opening courses or the full ECO code index.