Set of Boards
A set of boards for duplicate bridge typically contains 32 boards. (The actual number of boards used in a particular session depends on the type of tournament, the number of tables, and the choice of movement used. Often some of the higher numbered boards (e.g. 28 to 32) are not required to be used.) The dealer and vulnerability markings for each board number are standardized in the laws of the game, utilizing all the possible permutations. The dealer is rotated clockwise in successively numbered boards. Four combinations of vulnerabilities also change, but they are also shifted circularly after every 4 boards. Thus, a set of 16 boards has the following markings:
| Board | Dealer | Vul. | Board | Dealer | Vul. | Board | Dealer | Vul. | Board | Dealer | Vul. | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | N | None | 5 | N | N-S | 9 | N | E-W | 13 | N | All | |||
| 2 | E | N-S | 6 | E | E-W | 10 | E | All | 14 | E | None | |||
| 3 | S | E-W | 7 | S | All | 11 | S | None | 15 | S | N-S | |||
| 4 | W | All | 8 | W | None | 12 | W | N-S | 16 | W | E-W |
The scheme is repeated in the subsequent sets of 16 (i.e. boards 17-32, 33-48 etc.).
Read more about this topic: Board (bridge)
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