After partner 1NT style:

• • • 2♠ - 6+♣, 0+ HCP, 1NT bidder must bid 3♣ (if Minor Suit Stayman is off);

    • 2N - 6+♣, 0+ HCP, 1NT bidder must bid 3♣ (if Minor Suit Stayman is on);

    • 3♣ - 6+♦, 0+ HCP, 1NT bidder must bid 3♦.

After partner 2NT style:

• • • 3♠ - 6+♣ or 6+♦, 0+ HCP, 2NT bidder must bid 4♣;

or

• • • 3♠ - 6+♣, 0+ HCP, 2NT bidder must bid 4♣;

    • 4♣ - 6+♦, 0+ HCP, 2NT bidder must bid 4♦.