Platinum Pairs. Table result 3Dx-4 NS+1100.
This was the only appeal so far published in the bulletins in Reno. I shall present the facts (as published), but not the TD or AC decision, and ask you to rule. After the 2♠ bid was made, East asked the meaning and was told that it was "garbage" (or weak) with spades and hearts. East called the TD when dummy hit because the explanation did not correspond with the NS holdings (wrongly stated to be EW holdings in the bulletin). East said he would not have changed his double of 2♠. Play continued. At the end of the hand, North said that the agreement was described correctly; he and his partner had discussed it that morning, but he took a view. North further said that he would have doubled 3♥. One of the North-South convention cards showed that the pair played garbage Stayman, while the other card did not. (I do not know which one, although I think the TD should have stated which one).
The write-up continues, regarding the ruling, that "Law 75 states that the director must rule that the explanation was mistaken". This is incorrect; the Law that states this is 21B1b which is:
"The Director is to presume Mistaken Explanation rather than Mistaken Call in the absence of evidence to the contrary". Your decision could be a bottom to top swing. If you decide that there was MI, then the final contract is likely to be 3Hx=. If you decide there was no MI, then the table result clearly stands. All 126 match points are at stake, perhaps a record for an appeal!
As per the forum rules I think propounded by barmar and blackshoe, I have not included the players' names, although the bulletin saw fit to do so. SB is not involved!