You are playing with an international player, in a once-off partnership, in small country town tournament. You have had 45 minutes system discussion none of which included the situation described below.
You did, however, have a prolonged discussion about which doubles are for penalties and which doubles ask partner to do something intelligent.
You agreed that almost no doubles will be for penalties unless it is a penalty double.
You are dealer and open 1C. LHO overcalls 1S, Partner bid 2H (one round force) and RHO ups the ante by jumping to 4S.
You have several available options. You need to answer this in the context of the conditions given above (that means that despite you and regular partner having 617 competitive bidding agreements, 4NT will not be for the minors).
Over to you.
nickf
sydney

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