A board from today's match against JEC: Diagram I'm not interested in how the play went, only the auction. I passed 4♠, Lorenzo Lauria bid 5♣ over it on the other table. I don't understand this fully. Can't partner have a 6322, 5422, ...? Further: would it be useful to seperate t/o doubles with 4 spades from t/o doubles without 4 spades by simply bidding 4♠ with the first type? Two consequences I can think of: 1) You lose the option to play 4♥X opposite the first hand type, but there could be more to gain than to lose there. 2) Your 5x6x hands are buried in the 4♠ bid: neglegible?