Hi Mauro, IMO, raising a minor under 3NT in those kind of auction is first NT oriented. If you don't bid 3♦, partner can't judge his hand. Here, with the hand you give (Kxx-Tx-KJxxxx-xx), this is a max and 6-card suit so I accept the invitation and bid 3♠ (ok for 3NT and nothing in ♥) or 3NT directly. Alain