range of possible strengths is completely concealed from opponents. All 2-level bids become transfers according to this scheme (known as "exit transfers" in some quarters): redouble transfers to 2. 2 transfers to 2. 2 transfers to 2. 2 transfers to 2. 2 (Acol - I have 11 HCP) transfers to NT at the appropriate level. 2NT (Acol - I have 12 HCP) (Note: some partnerships use a "forcing pass" by the partner of the 1NT opener. The 1NT opener is then obliged to redouble. The partner of the 1NT opener may then pass the redouble with a good hand and 1NT redoubled is judged to be makeable, or with a poor hand initiate bidding 4-card suits up-the-line until at least at 4-3 suit fit is found). Transfers following an intervening bid Standard bidding in most systems is that all responses following a natural suit overcall are themselves natural bids ("double" may be used for take-out). An alternative is that such responses, including "double", act as transfers. For example, following a 1NT opening and a 2 overcall: double ... transfer to hearts 2 ... transfer to spades 2 ... transfer to clubs References Further reading Standard applications of the Jacoby transfer are fully described in Standard American 21 by John Sheridan Thomas (). Paul Mendelson. Mendelson's Guide to the Bidding Battle, 1998. Colt Books, Cambridge, England. . Reprinted 2003 as Control the Bidding, Elliot Right Way Books, . Bridge conventions