• Tiles must be identical to be removed.

  • Fully and partially covered tiles cannot be matched.

  • Tiles must have a free long edge in order to be eligible for matching.

  • You can undo a move without penalty.

  • Using the hint option adds a 30-second penalty to your time.

  • If the arrangement does not allow further tiles to be matched, you will be given the option to shuffle the tiles in order to keep playing.

  • Shuffling tiles adds a 60-second penalty to your time.