How many Tribals could tackle Scharnhorst and Gneisenau?

How many Tribal-class destroyers would be needed to destroy Scharnhorst and Gneisenau in one engagement?

About eight might have a plausible chance and sixteen a good one, but he only reaches thirty-two when asked to guarantee the result.

This counterfactual destroyer action separates probable success from a guaranteed result. About eight Tribal-class destroyers have a plausible chance, sixteen a good chance, and thirty-two appear only when the question demands certainty. Their speed, aggressive handling, and numbers would create torpedo opportunities. Even one heavy shell could remove a destroyer, so no neat force ratio eliminates combat risk.