Using The Convention
After opener's one of a suit (X), partner's one of a suit response (Y) and opener's 1NT rebid (a very common sequence), 2♣ from opener's partner forces 2♦ from opener. Holding a weak hand with diamonds, one can now pass. Other bids are invitational, describing also the nature of the hand. A 2♦ response to 1NT, however, is game forcing with any hand. Responder may also jump to 3 of any suit (except 3♣, which is signoff) to show a slammish hand with good suit(s).
Read more about this topic: XY Notrump Convention
Famous quotes containing the word convention:
“Every one knows about the young man who falls in love with the chorus-girl because she can kick his hat off, and his sister’s friends can’t or won’t. But the youth who marries her, expecting that all her departures from convention will be as agile or as delightful to him as that, is still the classic example of folly.”
—Katharine Fullerton Gerould (1879–1944)