Daily chess puzzle: Check Mate #486

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

Black to play and mate White

Evert v Barbakadze, correspondence SSSR 1980
Solution 
Nice, but not hard. 1…Qf2+ and if 2Kh1, 2…Ng3+ is horrible (say 3Ng3 Qg3 4Kg1[] Nf2 hitting h3) though even better is 2…Qh2+ and 3…Qh1mate. But the Main line is 2 Nf2 when 2…Bh2+ 3K-either Ng3 is smothered mate. 

FEN 
1r2k2r/1p1b1p2/p2p2p1/2pPbn1p/P1P1N1nq/7P/1PNBBPP1/R1Q1R1K1 b k – 0 1