Crazy eights with teeth — sevens stack, eights skip, and you announce your last card.
The German cousin of crazy eights, and the version that most of Europe grew up on. Same core, but nearly every card does something.
32 cards — seven up to ace — or a full 52-card deck. Five or six cards each. One card is turned face up to start the pile.
Play a card matching the top card by suit or rank, or draw one card and pass if it does not play. Unlike crazy eights, you draw once and then your turn is over.
Seven: the next player must draw two. Sevens stack — if they play a seven of their own, the player after them draws four, and so on. Eight: the next player misses a turn. Nine: reverses the direction of play. Jack: wild. Play it on anything and name the suit to be followed. A jack may not be played on a jack. Ace: in some regions the player who played it goes again.
Which of these are in force varies from town to town. Agree the set before dealing.
With one card left you must say mau. Playing your last card, you say mau-mau. Forget either and you draw a penalty card — and this is enforced strictly, including on the player who has clearly won.
First to shed every card. If you go out on a jack, most tables double the penalty for everyone else.
Count the cards left in hand: ace 11, court cards 10, others face value, and a jack 20.