This is Mahjong, a game in which you have to match two tiles with the same picture that aren't 'stuck' by having a tile to both the left and right. It's a very simple game that you can play for free online so you expect some options to make it worth paying for. The game does have buttons that help you in some ways (highlight valid choices, shuffle, etc) but those are fairly standard. There is also a campaign mode in which you have to solve puzzles really fast (to get 3/3 stars). It loads so slowly i thought the game had crashed. There's nothing interesting about it either.

The game lacks an option to select tiles, difficulty settings or a zoom function. It's definitely not worth €15 (i got this in a $1,75 bundle with seven other games).