400 is a Lebanese trick-taking card game played in two partnerships with a standard deck of 52 playing cards. The object of the game is to be the first team to reach forty-one points. The game somewhat resembles Spades, but with subtle differences.

To accumulate the most points at or beyond 41; points are accrued by winning at least the number of tricks bid in each hand, where each trick that is bid is worth one point. Hearts are always trump and other suits have no innate value. Cards rank: A K Q J 10 9 8 7 6 5 4 3 2

The first dealer is chosen by a draw for high card, and thereafter the turn to deal proceeds counter clockwise. The entire deck is dealt two cards at a time, face down, beginning on the dealer's right (The first deal being either one card or three cards per player, in order to arrive at thirteen cards each). The players then pick up their cards and arrange them by suits.

If one player prematurely runs out of cards, that is, either extra cards were dealt elsewhere or one or more cards are missing, the hand is considered void and the deal passes to the player's right.