[ilya]

If you somehow *knew* you were up against a dry King, you would have been right to fold. A King of any sort is not mucking to a push after making that bet.

However, since you say that you had "no solid reads on anyone," I don't see how you could have known what he had. The bet does look like a King, but it could also be a set, a straight draw, a flush draw, a combo draw, an underpair, or even a bluff. No matter though, because without a read that a big bet from this guy tends to mean a weak hand/draw, I think a fold is in order anyway.

Basically my point is that I don't like semi-bluffing for all my chips in what seems like a fairly marginal situation without at least a rudimentary read.