Responder's 1 ♥ wake-up bid in the 1st round of bidding. The Opener has passed.
2) If the Responder only has 4 cards in his major :
- With 4 cards in the other major and at least 10HCP the Responder bids his 2nd major..This unusual bidding sequence doesn't show a 2-suiter with 5-5 but shows 4-4 in the majors (not 5-4)
- With a stopper in Opp's suit depending on his strength, Responder bids 2 or 3NT.
- Without a stopper in Opp's suit and with the points to play 3NT Responder cue-bids Opp's suit : it's an invitation to play NT if Opener has ♣ stoppers.