West continued with a top spade tapping dummy. South followed with the ace, king and a club ruff, establishing the suit. He played off the top hearts and could claim ten tricks when trump divided 3-2 , N-S +170.
The cue bid was Michaels, disclosing hearts and a minor, but South was not tempted to venture game. He held two aces and three-card heart support but was cognizant of the favorable vulnerability. Partner would not necessarily hold a good hand. The major suit game required a 3-3 club division and a 3-2 heart split. West had been wise to subside in the auction at unfavorable vulnerability. He owned a solid 17 HCP but partner's silence warranted caution. A spade contract would not fare well where West is booked to lose three clubs, two hearts and one diamond as long as he guesses diamonds correctly.
West might have opted to open 1NT but North would employ Cappelletti by overcalling two hearts promising hearts and a minor. This action would swiftly be passed out unless West elects to back in with two spades. In this scenario, South's raise to three hearts would bring the auction to a close.