1♦ is 11-15 pts, no five-card major, could have as few as no diamonds
3NT was intended as "to play", but interpreted by North as RKCB
4♥ was intended to show two key cards without ♦Q, interpreted by South as natural (6-5 minimum)
4NT was intended as RKCB for hearts, interpreted by North as asking for kings
5♣ was intended to show no kings, interpreted by South as showing no key cards
5♦ and 6♦ were to play.
The confusion came to light when EW asked about the bidding before the opening lead. It was clear now that NS had spent the auction at cross purposes.
Result: 6♦(N)=, NS+1370
EW called me at the end of play, concerned that unauthorized information could have affected the auction. I asked NS about their bidding methods. They often use 3NT as RKCB over an opening major suit bid, or when a major suit has been agreed, but never over a minor. They don't have any other common alertable uses for 3NT in uncontested auctions.
How do you rule?
1♦ is 11-15 pts, no five-card major, could have as few as no diamonds
3NT was intended as "to play", but interpreted by North as RKCB
4♥ was intended to show two key cards without ♦Q, interpreted by South as natural (6-5 minimum)
4NT was intended as RKCB for hearts, interpreted by North as asking for kings
5♣ was intended to show no kings, interpreted by South as showing no key cards
5♦ and 6♦ were to play.
The confusion came to light when EW asked about the bidding before the opening lead. It was clear now that NS had spent the auction at cross purposes.
Result: 6♦(N)=, NS+1370
EW called me at the end of play, concerned that unauthorized information could have affected the auction. I asked NS about their bidding methods. They often use 3NT as RKCB over an opening major suit bid, or when a major suit has been agreed, but never over a minor. They don't have any other common alertable uses for 3NT in uncontested auctions.
How do you rule?