Precision - Major Opening
The requirement for an opening bid of one in a major is 12 - 15 points and a 5
card suit.
The point requirement may be a bit shaded in the 3rd or 4th position.
A response of 1 NT is forcing for one round. The opener may be forced to rebid a 3 card minor.
A response of 1 NT by a passed hand is semi-forcing.
All raises are weak. A response of a suit at the 2-level is forcing to game.
Bergen Raises are used.
For strong responding hands with four trumps, Jacoby 2NT
is used.
Playing precision, opener is limited to 15 points, hence the conventional responses and rebids
are adjusted for that.
To conserve space, the meanings of 3C and 3D are reversed.
i.e. 3C is a limit raise with 4 trumps and 3D shows 7-9 points with 4 trumps.
After a response of 3C, a 3D rebid asks for shortage. (Mathe)
Over a 3rd or 4th hand opening (i.e. responder is a passed hand),
Reverse 2-way fit showing Drury is used;
Bergen raises of 3C and 3D are still valid.
A drury response of 2D shows a limit raise with 4 trumps and a shortage;
(2NT asks which)
without a shortage the 3C Bergen raise is used.
A 2NT response shows a weak hand with a long minor
a 3C relay is used to ask responder to pass or correct.
Other rebids are forcing.
Game try after a single raise e.g. 1H - 2H
2S, 3C, 3D - Help suit game try
3H - Need help in trump or miscellaneous game try
2N - asking for doubleton
resp 3H - 4-3-3-3 minimum
resp 3N - 4-3-3-3 maximum
resp 3 suit - doubleton
Precision ·
One Club ·
One Diamond ·
One Major ·
One No Trump ·
Two Clubs ·
Two Diamonds ·
Two No Trump ·
Major preempts ·
Minor preempts ·
Asking bids ·
We compete ·
They compete ·
Slam Conventions ·
Miscellaneous conventions
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