Neither vulnerable, East deals
West leads 5♣️. North plays 4♣️. East plays 8♣️. And declarer (South) wins with Q♣️.
From the play to the first trick it looks like you can count on 11 tricks—three ♣️s, five ♠️s, two ♥️s, and one♦️. For a twelfth trick you could lead small from the South hand and finesse either Q♦️ or J♥️. Which finesse should you try ♦️s or ♥️s?
finess in hearts – first – if it doesn’t work you have no choice but to finesse diamonds –
If the heart finesse fails it is too late to try diamonds. Defense will just cash K of diamonds for the setting trick.
You have to start with the diamond finesse.
If you start with the heart finesse, and it fails, you no longer have an option for a diamond finesse. The opponent will cash his diamond King, and you’re down 1.
Right on Larry!