The aim of the game is to find the hidden picture triplets. when clicking on a question mark a card is uncovered. When the next two cards are matching with it, you have found a triplet. That triplet stays uncovered. If the three cards are not matching, it is being covered up again. The game is finished if you uncovered all triplets. Try to do it with as little tries as possible.
The Triple Search can be played with the Nintendo 3DS as a browser game on froxot.de