Calling the Twenty: Puzzle X2

CTT-X2 Puzzle

You are the Forehand in the Call. Your hand: XX, XVI, XIII, IX, VI, I, Kdiamonds, Qdiamonds, Jhearts, 10clubs.

Which Tarok do you call?

Reveal answer

Answer

The XIX. You hold the XX yourself, so calling it would make you your own Partner and leave you alone against three players. So you call the highest Tarok below the XX that you lack, here the XIX.