The Precision Club system described on this site is not a "standard" version of Precision. Indeed it is not even a standard version of Super-Precision. Precision Club itself does not use Asking Bids and does have some features that are not often used in normal practice today (eg: 2-way Stayman). I make no apologies for the fact that the system I teach is not "classic" Precision: Over the years I have arrived at a system that really works for me but even now the system is constantly evolving as new methods come along. In case you are looking for a description of "Standard Precision" what appears below is a fairly simple description of basic Precision.
Opening Bids Summary
1♣ = 16+, any distribution. The only exception is 22-23 balanced (opened 2NT)
1♦ = 11-15 with a hand unsuitable for an opening of
1♥, 1♠, 1NT, 2♣ or 2♦.
It denies having a 5-card Major or a 6-card Club suit unless it's weak.
1♥ = 11-15 with 5-card Hearts (Spades shorter)
1♠ = 11-15 with 5-card Spades (Hearts not longer)
1NT = 13-15 throughout (balanced or semi-balanced with a 5-card Minor)
2♣ = 11-15 with a fairly good 6-card Club suit or a 5-card Clubs Suit with a 4-card Major.
2♦ = 11-15 with exactly 4414 shape (singleton Diamond).
2♥ = 5-9 with a 6-card Heart suit.
2♠ = 5-9 with a 6-card Spade suit.
2NT = 22-23 balanced.
Normal pre-empts.
One No Trump
Shows: 13-15 hcp throughout, balanced, or semi-balanced with a 5-card Minor. Precision does not normally open 1NT with a 5-card Major unless the Major is very weak (eg: 9xxxx).
Standard Precision prescribes 2-way Stayman and no transfers, so
1NT-2C is non-forcing Stayman, and
1NT-2D is forcing Stayman.
(Most Precision pairs use normal Stayman and Transfers instead of 2-way Stayman.
One Diamond
Shows: 11-15 with a hand unsuitable for an opening of 1♥, 1♠, 1NT, 2♣ or 2♦.
Continuations are mostly natural.
1♦ does not promise a Diamond suit.
1♥ and 1♠ responses promise a 4-card or longer suit.
1NT response normally shows 8-10 balanced and denies a 4-card Major
2♣ and 2♦ are 1-round forces showing those suits, denying a 4-card Major unless Responder is strong enough for a game-forcing reverse.
Two Diamonds
Shows: 11-15 with exactly 4414 shape (singleton Diamond).
Almost all continuations are natural and non-forcing except:
2NT Response a forcing enquiry on Opener to show their range/controls:
3♣ shows Lower Range, 0-3 Controls
3♦ shows Lower Range 4+ Controls
3♥ shows Upper Range, 0-3 Controls
3♠ shows Upper Range, 4+ Controls
Major Suit Openings
1♥ & 1♠ both show 11-15 hcp with at least a 5-card suit. If 1♥ is opened the Hearts will always be longer than Spades.
2/1 responses forcing to 2NT.
Direct suit raises are pre-emptive
The 1NT response is an artificial 1-round force showing either:
Balanced limit raise in Opener's Major to the 2-level or higher
Balanced raise to at least 2NT with no good support for Opener's Major.
A weak hand with a 6-card or longer suit of its own and no tolerance for Opener's Major.
Opener now does one of the following:
shows a 2nd suit
rebids a 6-card suit
bids their cheapest 3-card Minor with any 5332 shape.
Short-suit trial bids.
Two Clubs
Shows: 11-15 with a 6-card Club suit or 5-card Club with a 4-card Major.
2♦ is a 12+ hcp forcing enquiry
2♥/2♠ show a 4-card suit
2NT shows a 6-card Club suit with 2 outside suits stopped
3♣ shows a 6-card Club suit with only 1 outside suit stopped
Over 2NT and 3♣ rebids, Responder can make a further enquiry with 3♦ to clarify which suits Opener can stop.
2♥ & 2♠ Responses are limited, normally showing a 5+-card suit with no tolerance for Clubs
2NT response shows about 11-12 points balanced with no 4-card Major
Direct raises in Clubs are limit (3♣) or pre-emptive (4♣)
One Club
1♣ shows almost any 16+ hcp hand, unconditionally forcing for one round. The only exception is 22-23 balanced. Responses:
1♦ shows 0-7 points, any shape or 8+ with any 4441
1♥, 1♠, 2♣ & 2♦ all show 8+ points with 5-card or longer suits, game-forcing
2♥ & 2♠ are semi-positive, promising 5-7 with a 6-card suit
2NT is semi-positive, promising 7-8 points balanced with 3334 shape and no 4-card Major.
Continuations are mostly natural
4441 Positives: Responder bids the 1♦ Negative, initially,
and then takes inconsistent action on the 2nd round of bidding. This is the so-called Impossible Negative