Mahjong Gardens.
Mahjong Gardens is a puzzle game that lets you play mahjong in its solitaire variation. You are clearing tiles from the board by pairing identical tiles with each other. Pairing has a few rules, including being unable to pair tiles if one of the two tiles does not have one free edge, as well as one of the tiles, should not be under any other tile. The game ends when all tiles have been paired, or if you run out of moves and shuffles.