While a deal of bridge is always played following a unique set of rules, its scoring may vary depending on the type of event the deal is played on. There are two main categories of scoring: rubber and duplicate. Rubber scoring, and its popular variant Chicago, are mostly used in social play. Duplicate scoring is focused on tournament competition and has many variations that compare and rank the relative performance of partnerships and teams playing the same deals as their competitors. Terminology The following terms and concepts, defined in the glossary of contract bridge terms, are essential to understanding bridge scoring: or Made and grand slam Undoubled, and , and Scoring elements Bridge scoring consists of nine elements. Not all elements are included in all game variants and the method of accumulation of the elements over several deals varies. If the contract is made, the score for each such deal consists of: Contract points, assigned to each odd trick bid and made Overtrick points, assigned for each trick taken over the contracted number of odd tricks A slam bonus for a small slam or grand slam contract bid and made A bonus, colloquially known as 'for insult', is received at the end of any deal in which a doubled or redoubled contract is bid and made If the contract is defeated, the defenders receive: Penalty points, assigned for every undertrick In rubber bridge only: A rubber bonus is received at the end of a completed rubber by the side that is first to win two games. A rubber bonus is also awarded for some game and part-game scores at the end of an unfinished rubber An honor bonus is received by any player at the end of any deal in which the player held particular honor cards. In duplicate bridge only: A partial-game bonus is received at the end of each deal for any partial game contract bid and made A game bonus is received at the end of each deal for any game contract bid and made Contract points Contract points are awarded for each odd trick bid and made. Their values depend on the suit (or notrump) and whether the contract is doubled or redoubled; they are not affected by vulnerability. Tricks won beyond that necessary to fulfill the contract are referred to as and their scoring points are accounted for separately because their values are dependent upon