This is the bidding problem I got today. x xxx QJ AK109xx Axxx xxx AQJxxx Kx 1C 1H 2C 2D(new minor forcing, sorta of) 2H 3C ...... The argument starts from here and 6H is duly reached. Responder bids 3C intended as "I have something useful here", and later the 2-suiter-6-keycard-blackwood is launched. After the bidding we had a little discussion but couldn't find the agreement here. After 1C-1H-2C, it seems that both 2D and 2S are forcing(some even play 2NT forcing as well), with 2D giving partner a chance for 2H preference, and 2S stalled as general game forcing. However, what if the responder wants to show "forcing raise in clubs"? Then the above sequence seems ambiguous, is 3C a supporting cuebid of opener's suit with hearts setup as trumps, or is it a forcing raise? If you also play 1C-1H-2C-2S/2NT forcing as well, then how do you show raises in clubs? Comments appreciated. Sam