Daily chess puzzle: Check Mate #454

Another puzzle from Dragoslav Andric’s 1981 book “Matni Udar”.  
White to play and mate Black. 

Chalagan v Little, 1978
Solution 
1 Qg6! and if 1…fg 2 Ng6; a rest day. 

FEN 
3qrk2/1b1pbpp1/p6N/1rp1N2n/p6B/6Q1/PPP2PPP/R3R1K1 w – – 0 1