User blog comment:Saturn120/What if Operation Unthinkable Was Executed?/@comment-32656-20140429223912/@comment-32656-20140503114247

Era before intercontinental bombers and ICBMs. And the nukes of the era were massive.

Only a single model of bomber in the US arsenal could even carry the things - the B-29. Maximum effective combat range in the area of 1500 miles, and probably a bit lower for the nukes. And, none of these planes in Europe. Ones in Asia, nearest bases out of range, and a lot of hostile territory anyway.

To make it even worse, unlike the Japanese, the Soviets actually had an air force left. Nearest Soviet city to Allied airfields would have been around a thousand miles, all through hostile territory. The cities you list, even further, and unquestionably out of range anyway.

So no, no Soviet cities gone. Only option to hit their armies.