Opener's Rebid after 1D-1S 14

Opener's Rebid after 1D-1S 14

Question:

You are South. Matchpoints. 

You hold: 

K
KJ2
KQ876
AQ32

What is your next call on the below auction:

  West    North    East    South  
   1diamonds icon
Pass1spades iconPass?

 


Answer: