It is very easy to beat 3nt contract,but both of 4M are best contracts.After stayman doubled by opp,how to bid next?
My solution is playing Kansas City Stayman.
When 2♣ stayman doubled by opp,the opener rebid at below:
1- Pass=denies a ♣ stopper. And then Responder can XX to ask opener to continue bidding as normal. Any other call (than XX) by Responder is natural and GF.
2- Any other bid shows a ♣ stopper.