2♥ - is 1NT opener but the point range that isn't covered by 1NT opening based on vulnerability. So non-vul 1NT rage 11-13 shows a 14-16 HCP 15-17 shows 11-14 HCP
- 2♠ puppet to NT to right side the contract
- 2NT - forced systems on and can play puppet
- 2NT - slam interest, balanced, asks for 4 card minor
- 3♦ - Limit hand with fit in 6+ diamonds
- 3M - 6 diamonds and 5 of the bid major game force
- 3NT - skip the puppet because your hand has something better to lead into
ALERT
2♠ - artificial, an undisclosed splinter for partner's minor, game force
ALERT
2NT - Shows 6 diamonds with a balanced hand
- 2NT Asks for shortness (responding low/mid/high)
- 3♣ is clubs
- 3♦ is hearts
- 3♥ is spades
3♣ - artificial 3 diamonds, 5 clubs and a 4-card major, game forcing
- 3♦ asks for major
ALERT
3♦ - Very good diamond suit 6+ game forcing
3♥/♠ - 6 diamonds and 5 of the major
Responders Rebids
If opener follows up with any bid up to 2NT the responders rebids 3♦ or 3♣ these are non-forcing shows invitational points (12-13) HCP with 6+ diamond support or 9 cards in the minors (could be as bad as 4♦-5♣) respectively any other bid is game force