This educational game is supposed to train auditive perception and consists of two equal sets of cards, each showing three or four pictures. One set of cards is spread out openly on the table, the other one is stacked face-down. One player picks up the top card and says what's on it. The first player to touch the matching card on the table keeps it. The game is produced in three incarnations called "Merkmal", "Merkwürdig" and "Merkbar". "Merkbar" has different colors as an additional distinguishing feature. (User summary by HilkMAN)