Deck consisting of an odd numbers of cards, traditionally showing animals. The players discard matching pairs and in the end one player is left with the last card (the Donkey) and that player loses.The Dan-Spil version consist of 31 cards, where as the Piatnik version consists of 25 cards.The version of Walt Disney (Peter Pan donkey) features 35 cards. (Printed by Carta mundi)The game can also be played with a standard set of cards with one removed. Cards has to fit in value and color (red or black). See also Old Maid - BoardGameGeek