Contract bridge awards a bonus for holding a certain combination of high cards), although some are common between the two. A larger bonus is awarded if the declaring side makes a small slam or grand slam, a contract of 12 or 13 tricks respectively. If the declaring side is not vulnerable, a small slam gets 500 points, and a grand slam 1000 points. If the declaring side is vulnerable, a small slam is 750 points and a grand slam is 1,500. In rubber bridge, the rubber finishes when a partnership has won two games, but the partnership receiving the most "overall" points
History of contract bridge supplanted other forms of the game that "bridge" became synonymous with "contract bridge." Led by Ely Culbertson, contract bridge enjoyed a boom in popularity in the US and the UK in the 1930s. In the US and Australia today, bridge is usually "duplicate bridge" played at clubs, at tournaments, and online. In the UK, bridge is still widely played in private homes (rubber or Chicago) as well as at clubs (duplicate and rubber) and tournaments (duplicate). History of contract bridge The history of contract bridge, one of the world's most popular partnership card games, may be dated from the early