A player shuffles the cards and places
the deck number-side down on the playing surface. In a round,
each player turns over two cards and calls out the product of the
two numbers. The player with the highest product wins the
round and takes all the cards.
In case of a tie for the highest
product, each tied player turns over two more cards and calls out
the product. The player with the highest product than takes
all the cards for both plays.
Play ends when not enough cards are
left for each player to have another turn. The player with
the most cards at the end wins.
