Slam-seeking conventions Slam-seeking conventions Slam-seeking conventions are codified artificial bids used in the card game contract bridge. Bidding and making a small slam (12 tricks) or grand slam (13 tricks) yields high bonuses ranging from 500 to 1500 points. However, the risk is also high as failure to fulfill the slam contract also means failure to score the bonus points for a game (300-500). Conventions have been devised to maximise the opportunity for success whilst minimising the risk of failure. Contract bridge bidding systems are mainly "natural" (most bids have an obvious meaning) or "artificial" (many bids have a meaning unrelated to
Ninety-nine (trick-taking card game) each earns 20 points; if three succeeded, each earns 10 points; and if all four succeeded in a 4-player game there is no bonus. A declaration adds 30 points (to the declarer if successful, to the others if not); a revelation is worth 60 points (to the declarer if successful, to the others if not). Note that in the 3-player game, the maximum score in one round is ninety-nine (hence the name): 9 points for winning all nine tricks, 30 points for bidding 9 tricks and getting them (while no one else got their bid), and 60 points for a