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Definition: - Any Opening suit bid at the 2 Diamond level or beyond. (NOTE: 2 Clubs is reserved for
a strong, artificial, and forcing bid.)
Purpose: - To preclude or, at the very least, inhibit the opponents from finding their presumed suit
fit, as well as their ability to find the proper level of play; a partial score, game or slam.
Restriction: - Usually denies having four or more cards in either Major suit if the pre‑empt is in a
Minor suit, or four cards in the other Major suit if the pre‑empt is in a Major suit.
Requirements: - Several prerequisites must be met in ordeer for the hand to qualify for a valid pre-empt.
1. The Vulnerability - Usually signifies an anticipated going down two tricks if one is vulnerable, or three tricks if one is not vulnerable. (To be later further qualified as in the Rule of 2-3-4)
2. Requires an understanding of the scoring process in that one does not desire to give up more points under a sacrificing scenario than the opponents would normally have gleaned had they, unobstructed, gotten to their rightful contract, be it in a partial, game or slam contract.
3. At the two (2) Level - Evidences:
a. At least a six (6) card suit
b. Usually a suit quality evidencing at least two of the top three honors if the
partnership understanding is that pre-emptive bids are "sound" as opposed to "light".
c. A strength of 5‑11 HCP's (MUST NOT BE MORE)
d. The high-card strength is confined mostly to the bid suit; i.e., no outside Ace.
At the three (3) Level or beyond - Evidences:
a. At least a seven (7) card suit or longer
b. "sound" or "light" as above dependent upon partnership understanding
c. Usually 8‑11 HCP's
d. a high card strength as in "d" above
"RONF" (Raise‑Only‑Non‑Force) ‑ Partner may choose to increase the pre‑empt for all the same
purposes as listed above. Any other bid than a raise in partner’s pre-emptive suit is forcing.
Example 1: 2NT asks for "outside feature" (an Ace or King in other than the suit bid)
The Pre‑empter returns to bid suit with no feature.
Example 2: A new suit asks for specific responses discussed in a later lesson.
Example 3: "2NT” (Ogust Convention) (1‑2‑1‑2‑3 Series) asking for both the strength of
the hand as well as the honor holding within the pre-emptive suit bid.