Table Result 6NTx=. Lead ♥K
The Rabbit had agreed to play three weak twos with the Hog on this hand, but he could not remember which three suits this meant, and opened a Blue Book compliant 2C on the South hand. North announced it as strong, however, and SB, West, decided to leave them to their own devices. He lost patience, however, when they stumbled into 6NT and thought he was on safe ground by doubling, especially with RR at the helm.
RR had recalled a lesson about ducking the opening lead but winning the second one with Axx opposite xxx in no-trumps, so he ducked the first trick, and won the second with the ace of hearts. His only hope seemed to be the Chinese finesse in clubs, which many an opponent had pulled off against him, so he led the queen of clubs, covered by East with West playing the jack. "Do you play normal count?" asked RR, peering at the jack of clubs. MM, East, confirmed that they did and RR took the diamond finesse and led the six of clubs, covered with East's seven. RR wondered if West's jack on the first round was a standard false-card with J9 doubleton and was tempted to rise with the ten, especially as East-West played normal count, but after much dithering he finessed the eight, which held. Now he finessed the queen of spades and even he was able to finesse the five of clubs successfully. The remaining clubs caught SB in a progressive squeeze and RR emerged with 12 unexpected tricks. "You should have kept a spade and a heart guard," he said to SB. "That was most careless of you, and quite rare for you to misdefend. I should never have made my eight of spades and nine of hearts."
SB was apoplectic. "DIRECTOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOR", he called.
"RR agreed to and did open a non-compliant "strong" 2C, without 12 HCP and 5 controls, and did not correct the wrong explanation before the opening lead.", he began. "If 2C had been explained as weak, which is a permitted agreement, then I would have doubled for takeout and it is very unlikely that NS would reach 6NT". He paused for breath. "And if RR had called the TD before the opening lead and indicated that there had been a wrong explanation, I might have found the diamond lead which breaks up the progressive squeeze by attacking the extended menace and interfering with the communications in the ending".
OO was unsure. "I don't buy the second part of that; he said," "I think if I polled the caretaker's dogs, they would all lead the king of hearts". "And as for the first part, the agreement to play three weak twos to anyone other than the Rabbit would mean weak twos in diamonds, hearts and spades, so 2C was a misbid".
The Rabbit blushed, aware that he was being ridiculed again. SB was not finished however. "21B1(b) states: "The Director is to presume Mistaken Explanation
rather than Mistaken Call in the absence of evidence to the contrary." He continued: "I think we can rule MI, can't we and adjust to what would have happened after 2C, correctly explained as weak, double by me, with North bidding 3NT and going three off on a heart lead when declarer misguesses the clubs by playing one to the ten." He concluded: "Can I score it as +150 to our side, please?"
How do you rule?