Sicilian Defense: Alapin Variation, Barmen Defense, Central Exchange

1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 cxd4 5.cxd4 Nc6 6.Nf3 Bg4

ECO B22

The Sicilian Defense: Alapin Variation, Barmen Defense, Central Exchange is a chess opening line in the Sicilian Defense complex, reached after 1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 cxd4 5.cxd4 Nc6 6.Nf3 Bg4.

It is catalogued under code B22 in the Encyclopaedia of Chess Openings (ECO).

The defining move Bg4 is chosen by Black on move 6.

Study this line with a grandmaster

This position is covered in the Alapin 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.