blackshoe, on 2015-June-04, 09:43, said:
The OP asked "your ruling?" (it's in the title of the topic). We have an ongoing argument, but we don't seem to have consensus on the question. The simple answer to this question is "there is (as of the original post) insufficient data to make a ruling". Somebody did say that, somewhere on page two, I think.
Ok, here's my attempt at this question. Suppose we accept that South's double was indeed psychic. I don't think the UI that South didn't ask suggests much at all, since presumably he assumed the alert meant it was artificial. But was the psyche fielded? I don't think North's pass is particularly unusual, and IMO the psyche was fielded if he didn't lead a diamond, and not fielded if he did.