Quest transfers is a convention. This convention is alertable. Its prerequisite is Stayman. Quest transfers are a nonstandard conventional rebid in 1NT auctions. After 1NT--2♣--2♦, the opener has denied a four-card major, but likely has three-card majors. Thus, with 5-4 (sometimes 6-4) majors, after giving opener his choice of majors with Stayman, it is useful to be able to transfer to a major of the responder's choice. This is very similar to Smolen transfers, but more useful since Smolen only applies to game-forcing auctions, while Quest transfers may be used with as little as invitational strength, since it is possible to sign off in 3 of the major with a Moyesian fit in the worst case.