Simple rule but will boost your evening for ... goal: to reconstruct a cow family (9 cards) principle must exchange one, two, three or four identical cards from his hand with any of the other players offering a lot of the same size (but unknown content - is unclear what family are cows which are recovered ). All these transactions are done simultaneously and must say moo once for a trading card moo twice for two cards ... Attention games very very very LOUD!
