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
Bridge Battle of the Century appear, at that particular moment, to be one of them". The match was for 150 rubbers and ran from December 1931 into January 1932. Lenz and Jacoby led through 43 rubbers, but then fell behind. Jacoby quit after the 103rd rubber. Culbertson built up a lead that grew to 20,535; Lenz made up some of that gap but still finished 8,980 behind. Bridge Battle of the Century The "Bridge Battle of the Century" was the name given to a celebrated 1931–1932 contract bridge challenge match between Ely Culbertson and Sidney Lenz and their partners. The match pitted Culberson's bidding system,