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
Boston (card game) in a contract to win at least eight tricks between them. The higher bid of Independence offers to win at least eight tricks playing solo. In either way, there is an extra bonus for winning all thirteen tricks formerly called "la vole", but now "le chelem", from English "Slam". All bids are solo, the lowest being to take four tricks in any suit. Each may be over-called by bidding higher number of tricks, or the same number in a better suit. For this purpose a better suit is that of Preference, previously determined by turning the last card of the