This treatment is alertable in ACBL regulations. Strong two bids are old-fashioned opening suit bids at the two level, specifying unbalanced hands two strong to open at the one level. Common requirement includes:
- 20 HCPs or more or its playing equivalent, or 4 or less losers.
- A good 5 card suit or a 6 card suit.
These opening bids are forcing.
Strong two bids may also be used with strong two clubs together (e.g. in Acol). If used in this way, a 2♣ opening is game forcing except 2NT, and the other strong two bids are limited but still forcing.
- 2NT : Artificial negative response, denies game strength.
- 3NT : To play.
- suit response : Game forcing, 3 card support or 5 card new suit.