Video

One move, two threats: a fork attacks two pieces at once, and only one can be saved.

A pinned piece cannot move without exposing a more valuable one behind it.

A piece steps aside and uncovers an attack from the piece it was blocking.

Mate on the last rank: the king's own pawns leave it nowhere to run.

Think you know chess? Eight questions, from easy to unfair. Your score becomes a rating, and we'll tell you how many people you're ahead of.

Find an opponent of your level in the lobby.