Give your answer to this old Bridge World Master Solvers’ Club problem. We can then discuss why it is typical and how to learn from the answers.

IMPs, neither side vulnerable. You, South, hold:

Spade Graphic K 3 Heart Graphic 10 4 Diamond GraphicK Q 10 9 8 6 5 Club Graphic J 2

SOUTH   WEST   NORTH   EAST
3 Diamond Graphic Pass 3 Heart Graphic Pass
?

What call do you make?