The goal of Mahjong Solitaire is to match identical pairs. Tiles can only be removed if at least one side is free, and no tiles are placed on top. Click the pair of tiles to remove. When you shuffle the tiles, it will add a 60-second penalty to your time. And if you want to redo your moves just click undo. Under Options, Players can change their choice of map and style of their tiles. We have four maps to choose from and for the tiles players can choose to use tiles that are Symbol, Wood or Flower.