Daily chess puzzle: Check Mate #284

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

Black to play and mate White

Malcanek v Teschner, Reggio Emilia 6/1/1965

Solution

I couldn’t decide between 1…Re6 or 1…Ne4: my engine can’t either: both win. In the game, Black played 1…Re6 2 de[] Ne4 and after 3 Rg1 Ng3! and White’s house collapses.

FEN

r3r1k1/pbp3pp/1p1pNn2/3P1p2/2P2PqP/B1PQP1P1/P6K/4RR2 b – – 0 23