VixTD, on 2014-December-15, 08:32, said:
Yes, this solution had occurred to me, and could provide a basis for giving redress for any damage caused, but I still don't feel very happy giving penalties to players who are following a law which specifically addresses the situation but falling foul of another that applies only indirectly.
I was advocating a rectification adjustment. That doesn't mean that you have to give anyone a procedural penalty, particularly if you judge that the player has acted in good faith.
VixTD, on 2014-December-15, 08:32, said:
I tried to find examples of laws which explicitly prevent players from doing things they are normally allowed to do, and I thought the most obvious place to look was under players required by law to pass. Oddly, they are forbidden to ask for a review of the auction (law 20B), but not to ask for an explanation (law 20F). (One could of course argue that a player required to pass can only be asking for partner's benefit and rule under law 20G1).
How about this? Law 19 says that a player may double the preceding bid, if that was made by an opponent. However, if a player has UI which (in the player's opinion) demonstrably suggests doubling over another logical alternative, then Laws 16B & 73C imply that the player must not double. The only way the player can apply with Law 19, 16A and 73C at the same time is to refrain from doubling.