Playing Mahjong Solitaire could not be simpler! You goal is to remove all the tiles on a board. To remove them, you just click on pairs of identical tiles. Some tiles cannot be removed. If a tile has another tile on top of it, or it has tiles on both its right and left side, that tile is locked, and cannot be removed. If you get stuck, you can undo your moves all the way back to the start again!