Intermediate and newcomer players - sharpen your game with this series of tutorials. You can browse the index by topic, or read them in order. Learn even more at ACBL's Learn page.
Partner opens a 15-17 1NT and your hand is:
Generally speaking, a 9-point hand is very much on the borderline between bidding game and inviting game. But Northís 9-pointer is a particularly fine specimen, what with that 5-card suit and all those lovely Tens, so in this case North has no qualms whatsoever about bidding 3NT directly.
Now put yourself in Declarerís seat. West leads the Spade Two (playing fourth best leads), and this is what you see when Dummy goes down: