Brown sticker

Main articles: Contract bridge, Bidding system, Bridge convention, and Glossary of contract bridge terms

Brown sticker is a category of contract bridge conven- tional agreements defined by the World Bridge Federa- tion (WBF).[1] Brown sticker conventions are considered to be difficult to defend against, and thus are only permit- ted at the highest levels of tournament play. Only highly unusual methods (HUMs) have a higher classification. A convention qualifies for a brown sticker if it fulfills any of the following criteria:

1. An opening bid of 2♣ through 3♠ may be weak and does not promise a known suit.

2. An overcall of a natural opening at the one level does not promise four cards in a known suit.

3. A weak two-suited bid where one of the suits by def- inition may be only three cards or shorter.

4. It is used for protection of psychic bids, or systemi- cally required psyches.

Notable exceptions are the Multi 2 diamonds (due to its popularity), a natural 1NT overcall, and cue bids on strong hands to force partner. In general, if a bid is weak (or potentially weak having multiple options) and does not promise four cards in a defined suit (when weak), then it is likely to qualify as a brown sticker convention.

1 References

[1] The official definition can be found at the WBF website in Systems Policy, page 3.

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• Brown sticker Source: https://en.wikipedia.org/wiki/Brown_sticker?oldid=592247243 Contributors: Dale Arnett, Duja, Lovro, Estienne, Rjwilmsi, Stevage, Fph, Lid, Fm2503, Addbot, Yobot, Wayneburrows, Erik9bot, Newwhist, AvicAWB and Anonymous: 1

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