For the moment, this is how we play it : Openings of 4♣ and 4♦ These bids show 8 cards suit (4♣=♥, 4♦=♠) with at least 2 of the 3 big honours. (nothing else needed) On these bids, 4♦ et 4♥ are respectively special Blackwoods. Answers by step are : +1 K and Q +2 A and Q +3 A and K +4 A, K and Q +5 A, K, Q and J Openings of 4♥ and 4♠ 8 cards suit without 2 of the big honours (nothing else needed) 4NT is special Blackwood. Answers are : 5♣ Nothing 5♦ Q 5♥ K 5♠ A 5NT A and J As consequence, we adopted 3NT opening as a 4-level minor preempt and the gambling 3NT is opened at the 1-level or overcalled later. Alain