The Wizard will bank this bet: 1/6 vs 1/11

[onyx99]

One die would almost always be seen/interpreted before the other.

Definitely true; but I don't think that changes anything in my post. In interpretation 2, your partner has to see/interpret both dice before reporting in the negative, so it doesn't matter if he sees them at the same time or not. In interpretation 1, he only sees one die at all, so this doesn't come up. And in interpretation 3, it's fine if he reports immediately on the first die he sees/interprets; or it's fine if he sees them both and then chooses one at random on which to report.

[Alan Mendelson]

Definitely true; but I don't think that changes anything in my post. In interpretation 2, your partner has to see/interpret both dice before reporting in the negative, so it doesn't matter if he sees them at the same time or not. In interpretation 1, he only sees one die at all, so this doesn't come up. And in interpretation 3, it's fine if he reports immediately on the first die he sees/interprets; or it's fine if he sees them both and then chooses one at random on which to report.

Onyx thank you.

Yes, we see one die at a time and then we make the connection (the roll) of the two dice. But it doesn't matter, as Onyx pointed out.