1.e4 d5 2.exd5 - See Scandinavian.
2...Qxd5 - Main line. Black recaptures immediately.
3.Nc3 - White develops with tempo, attacking the queen.
3...Qa5 - Black retreats to a5, the most popular square.
White's plans: Play d4, Nf3, Bd2. Develop quickly and use the tempo advantage.
Black's plans: Develop ...Nf6, ...Bg4, ...c6. Castle quickly and prove the queen is safe.
Watch the moves to understand the opening sequence. Use the controls to replay or auto-play the variation.