You are in 2nd seat holding this fabulous hand.
Counting 9+ tricks, you open two clubs. Partner responds two diamonds, waiting. Your rebid is two spades, and partner raises you to three spades. How do you interpret partner’s bid and what is your next call?
Note that partner did not go right to game as she might have done with a minimum hand and spade support (known as “fast arrival”). She is suggesting your side may have potential beyond game. With that in mind, cue bid four clubs to show 1st round control.
Good news: Partner cooperates further by cue bidding four hearts, showing 1st round control of hearts and denying 1st round control of diamonds. Now you should jump to six spades, knowing you have a good play for the slam.