Matchpoints
The Chimp always tries to play the hand whenever possible, but SB, West, suspected some additional reason for wanting to do so on the above hand, and he wondered whether that information was authorised. The board had been passed from the previous table, where RR, North, was partnering HH, and it took an awful long time to arrive. ChCh deduced, or so SB claimed, that RR must have been declarer on the previous table as HH is known to play at the speed of light, whereas RR often asks what the contract is at various points in the play. West led a spade against the pushy 3NT contract, MM having opened 1♦ as North, and East discarded a small diamond on this, South winning with the ten. Now ChCh led the king of hearts at trick two unblocking the ten from dummy!! East won and switched to the queen of clubs, but it was all too late. Declarer won with the king and continued with the nine of hearts. West won and played another spade, but South won and set up his long heart. West cleared the spades, but the five of hearts then began a see-saw squeeze on East in the minors and ChCh wrapped up nine tricks.
"Director!" bellowed SB, when he saw all four hands. "South used UI from another source, in that he responded 3NT rather than the normal 1H." He paused for breath. "He did this because he worked out RR must have been declarer at the previous table, from the time the board took to arrive, and therefore he "knew" North did not have four hearts." "He could not take the risk that MM would rebid a 11-13 NT on the North hand and play a potentially difficult contract. Also 3NT by North had no chance on the queen of clubs lead, and I think the score should be adjusted as ChCh breached Law 16D."
"Rubbish!" said ChCh. "I responded 3NT to prevent MM getting her hapless hooves on the dummy if she rebid 1NT." MM was used to insults and ignored this. "And," ChCh continued, "the length of time the board took to arrive and who was sitting at the next table" was "information I possessed when I took my cards from the board, so was AI anyway". He concluded: "So, even if I did use it, I am not prevented from doing so by the Laws. Also I did not get that information "accidentally", I learned it from the TD announcement that boards were moving down and pairs were moving up, and from the delay in receiving the board after the TD call of the move."
OO arrived. "Nice hand," he observed, "and the king of hearts was I think a form of the Deschappelles Coup, forcing East to win a heart prematurely so that he cannot break up the see-saw squeeze with two club leads, and the unblock of the ten was also very nice. If ChCh failed to do that, East would win with the ace, exit with a club and West could win the second heart and switch to his singleton diamond, severing communications." He concluded: "I am not sure whether the fact that the board took a long time to arrive is AI or UI, however. The laws are silent on the matter. I am also unsure whether who is at the next table is AI or UI."
How do you rule?
Acknowlegements to Leslie Cass for the hand.