When the auction begins 1X – 1Y – 1NT (where X and Y are different suit bids), the modern treatment is to play Two-Way New Minor Forcing.  This approach uses both 2♣* and 2♦* as artificial and forcing bids by Responder.  2♦* is an artificial game forcing bid, while 2♣* is generally used to start invitational bidding sequences.

New Minor Forcing is an excellent convention for continuing the auction when Opener has shown a balanced hand that is weaker than opening 1NT. But after a New Minor Forcing bid, the auction often gets complicated if we don’t go straight to game.  It can be confusing whether we are inviting game or trying to make a slam try – which bids are forcing and which bids are non-forcing?  2-Way New Minor Forcing is an upgrade to New Minor Forcing that allows Responder to better describe their hand and simplify and clarify the rest of the auction. 

The concept of having a conventional bid like Drury available to show a limit raise in support of partner’s Major suit when we are a passed hand is a regular part of most partnerships’ passed hand bidding structure.  Given that making a 2/1 bid into a minor suit is not that attractive (or even possible!) by a passed hand, it makes sense to allocate both 2♣ and 2♦ as artificial raises of Opener’s third seat (or fourth seat) Major suit opening bid.  Many partnerships that play Drury play 2-Way Drury, using one bid to show a 3-card limit raise and the other a 4-card limit raise.  But a more sophisticated structure can allow us to describe even more hand types in the same bidding space.