Developments after 1M > 2NT

When partner opens 1M, a bid of 2NT shows 1-2 cards in the opening major and 2-3 cards in the other major. If opener has 6+ cards in the opening major, unusual suits can be used to distinguish between strong and weak hands, as follows.

After 1H > 2NT,

Bid	Meaning	Continuations
3H	To play (6+ hearts)
3S (!!)	6+ hearts, GF	Choose between 3NT and 4H
3NT	To play (exactly 5 hearts)

After 1S > 2NT,

Bid	Meaning	Continuations
3H (!!)	6+ spades, GF	Choose between 3NT and 4S
3S	To play (6+ spades)
3NT	To play (exactly 5 spades)