Could Bismarck land a golden BB on Yamato?

Could Bismarck disable Yamato with a lucky "golden BB" hit?

Probably not. Yamato would be much harder to cripple with one lucky hit than a battlecruiser.

A lucky catastrophic hit is never impossible in naval combat, but the chance varies with the target. Yamato's battleship protection makes the required effect much harder to achieve than it would be against a battlecruiser. The phrase "golden BB" does not erase differences in armour, internal protection, and damage tolerance. The hypothetical separates a remote possibility from practical likelihood.