ACOL + Structural change = Beta ACOL
Beta has a number of far reaching changes versus ACOL:
- Reversing values are NOT required by Beta ACOL
- Preparedness is NOT a concern of Beta ACOL
- Betaacol is independent of a fixed 1NT opening bid strength! Its your choice - any 3 point range within 12-17 even varying with vulnerabilities!
- We utilise a 1NT wide ranging 12-16 rebid and a forcing Crowhurst 2
This has important side effects: It allows Beta to achieve a wider
usage of this economical rebid; it also allows us to mildly restrict
the opening 1NT to attain a higher degree of safety while not at all
losing its potency to give opponents difficulties.
- Similarly, Beta's rebid of 2NT 12-14 following a 2-level
response, with a flexible 'other minor' inquiry again protects us from
'reversing values' tentacles. 'Other' minor inquiry is used for continuations. E.g.: 1 - 2 - 2NT - 3! - 3 (5 card) - 4
- Beta proudly uses strongish 2's in the Majors. This has far
reaching and important side effects: It has a clear cut definition of a
4-5 LTC. It limits the top end range of 1Major openings to circa 15-17.
Its distribution is either a 5+ Major and a 4 card side suit OR a 6+
- We utilise a 2D Multi with 3 legs to cover weak
2's in Majors & to code for a 19-20
Balanced NT and a 3rd leg to handle some 5-5
- High level balanced hands 19+ HCP
hands have sequences providing 2 point ranges for higher
precision. 2D opening for 19-20, 2N opening for 21-22, 2C opening for
23-24 & 25+. Each of these may contain a 5 card Major too.
- Freely made suit rebids show a 6 card suit, 5
is allowed only following an inquiry bid. A rebid by a responder
is a STOP bid
- A change of suit is to be considered as forcing - in Beta jump
bids in a new suit have specific meanings. E.g. a jump rebid in a new
suit by opener discloses a short suit (2-3 cards) with 2 top honours
& implies a single-suited hand as well as being a game force!