Where can I play?

On your turn, play one domino whose end matches the end of the train you are playing on (the same number, or blank to blank). You may play a matching domino on your personal train, the Mexican Train, or another player's train if it is marked.

If you cannot play a domino, use When you cannot play. If you play a double, use Doubles.

You may not play on another player's unmarked train. An uncovered double must be handled first.

Read the full rule: Taking a turn