We can now look at the possible scenario when slam has been reached. Which slam is best? I suggest that if the bidding is accurate and truly reflective of the combined hands, it should be 6NT. East would probably have used Key Card and West shown one key card in spades. Despite East knowing that West has a very long and almost self sufficient spade suit, East will know that West’s spades are missing the ace or king. Therefore the most likely problem in a 6S slam will be in spades, and East’s hand is so good that if the spades ‘behave’ there will be no problem, but if the spades break badly and can not be set up without losing two, then 6NT might still make. I would normally argue that with a spade suit like West's, the slam should be played in spades not No Trumps, but this one is an exception and in fact that is what I, as East, decided on.
Board 24 from Thursday 9/08/24
Dlr West Nil Vul