Here was the original problem:
Deal two — 3♠️ South
Solution–
In a suit contract partner would not under lead A♥️. So declarer is marked for the A♥️. But who has Q♥️? We don’t know. If declarer has the Q♥️ she/he will surely win both the A♥️ and the Q♥️. If South does not have Q♥️ then she/he will not win the Q♥️. Bottom line is that we can play either the K♥️ or the J♥️ without sacrificing a trick. So let’s play the J♥️ and discover who has the Q♥️–another “discovery play”!
