https://www.bridgebase.com/forums/topic/42730-natural-1nt-in-sandwich-position/page__p__508657
natural 1NT in sandwich position - BBO Discussion Forums
Many top players suggest to play 1X-p-1Y-1NT as a natural 1NT overcall. I've seen all the arguments pro and con, so I don't want to start tha...
sandwich positionnaturalbbodiscussionforums