At the UniPuzzle.com website you can find a variant of the famous slide game (a.k.a. puzzle of 15) called Four Hearts Puzzle.
Object is to slide the twelve square tiles within the tray until four complete color hearts, Blue, Green, Red and Yellow, appear. To slide a tile, simply click it so it moves to the empty space (tip: you can also slide multiple slide at once as long as they are in a horizontal row / vertical column). There are also two other versions available : Three Hearts Puzzle and Five Hearts Puzzle. Happy Puzzling!
Tags: Puzzle Game