KnutH

Hi all, and thanks for the replies. It seems there are various ways of interpreting this bidding sequence. The board was played on BBO with the 2♣/4♥ bidder having sayc as profile (nothing more) and the 3NT bidder had a 5-3-3-2 hand with 17 points. I suppose the 3NT bidder tried to adopt to partner's sayc (?) and (mis)interpreted the 4♥ call as preference. Outcome was 7 tricks.... Thanks again for all your insight.

Hi all, What's your opinion on this one: 1♥-P-2♣-P 3NT-P-4♥ ? Preference or slam invitation ?