The 1NT-Opening

This shows at least 44-Majors with 10-14 HCPs in 1st & 2nd seats and 12-16 HCPs in 3rd & 4th seats. It is actually safer to open 1NT than 1 because there is a better chance of finding a fit.

Responses to 1NT

2 GIR with 12+ HCPs (or 11 HCPs with a fit) 2 Asks for Opener's better Major 　 Similar to 1 response to 1-opening

2/ Constructive (8-11) balanced raise 2NT Limit raise in one Major + minor suit shortage 3/ 6-card suit (9-11) inviting 3NT 3/ Pre-emptive raise 3NT Solid minor