Contract bridge

Contract bridge, usually known simply as bridge, is a trick-taking card game of skill and chance (the relative proportions depending on the variant played). It is played by four players who form two partnerships; the partners sit opposite each other at a table. The game consists of the auction (often called bidding) and play, after which the hand is scored. The bidding ends with a contract, which is a declaration by one partnership that their side will take at least a stated number of tricks,... full article at wikipedia