What is the chance of an iceberg to float...?

Even if it didn't melt, which it would, there's no reasonable combination of currents, winds, etc., that would push it there. Anyway, the Rooskies would probably invade it and blow it up before it got there.

zero chance.....because the black sea is practically an enclose body of water. Nothing can get in it from the Atlantic Ocean without going through the river in Istanbul, Turkey. Which wont happen.

Also the black sea is so far south from the poles, that the iceberg would melt. Icebergs only float down to about where the tip of france is.

Black Sea is out of the way for Iceberg to float there

Floating without any guidance? Zero chance. Because ocean currents would not carry it like that.

Guided/hauled there? Zero chance. Because of all that warm water it would have to go through. It would have to start out impossibly large to be hauled and guided because of all that warm water it would have to go through.

None. There are nob currents taking it that way and the water is too warm in the Mediterranean.

It has never happened in thousands of years of recorded history.