Responder's bids on a 2♥ opening using the 2♦ multicolor convention
The response bid of 2NT is a forcing bid asking for info as on the opening of a 2 weak major using the SEF convention (système d'enseignement français)
- With a weak and regular hand, Responder bids his best major using the law of trumps
- If Game is possible, Responder bids 2NT relay to check out the best possible contract : Game or even Slam