There was some ill-feeling on the above hand at a local club last night. West dutifully led his spade against 6NT and declarer won, and cashed his rounded-suit winners, ending in North. West pitched two diamonds (high-low, discouraging) and East two spades and a diamond. On the last club East went into the tank and eventually emerged, a good minute later, with the nine of diamonds. Declarer confidently cashed the ace of diamonds, but was disappointed when East's putative king of diamonds had gained an eye since he last saw him. Declarer went one off, as West had the long heart.
South asked East what he was thinking about, and he replied immediately. "Well, I couldn't throw a spade, as you would throw me in with a spade and I would have to lead a diamond, finessing my partner's king, assuming he had it or you would have twelve tricks. If I threw a diamond you might think I had been squeezed, as I had opened quite light by our standards, and I was likely to have the king of diamonds, so you might cash the ace. So I threw a diamond." South replied, "Did it take you a minute using one of your two brain cells to work that out?", but the TD arrived before the situation got out of hand.
The TD consulted with some colleagues, but he was confident that East's answer was true, and he had a demonstrable bridge reason for the long tank, however weak, so he ruled the score stood. Do you agree?
Agree with blackshoe: the director should penalize declarer for of his "two brain cells" remark; and gnasher: the director should rule 6N= because East could know his tank would mislead declarer (as in previous lamford case)