Daily chess puzzle: Check Mate # 78

Another puzzle from Dragoslav Andric's 1981 book “Matni Udar”.

Black to play and win

Hromadka v Samisch, Piestany 1922

Solution

I thought this puzzle was pretty. After seeing no easy way to take on f1 or f2, I saw, in CJS Purdy language, that the Rd2 was tied to defending f2, so can be overloaded with the lovely 1..Rd1! White's position collapses.

White resigned.

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