On a ♥ on ♣ lead this contract is in the bag from trick 1 (because it gives Declarer a "free finesse", provided a low card is played in Dummy), but on a ♠ or ♦ lead the Declarer must put his/her thinking cap on.

The 5♦ contract can be made without too much difficulty, but there are two important aspects to consider :

1. How many entries are there to Dummmy ?
2. Which one of the two possible finesses should you take ?

The new Card Play Technique flipper will immediately give you the correct answer to the second question ! (on pages 9 and 10)