Daily chess puzzle: Check Mate #483

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

Tanner v Kovalainen, Kajami 1980
Solution 
The best line is more or less forced, since White has so few options. 1Nd4 interferes with the Rd8 whilst also permitting Qh5+. 
After 1…fg 2 Qh5+ Kg8[] 

3Qg6 is more than sufficient, but 3Rg7+ is more forcing, not that forcing is needed. 3…Kg7[] 4Ne6+ and Qg6+ and Qg7 mate. 

Or, 1…Qd4 2Qh5+ Kg8[] when forcing is again not needed: 3Qg6 Qa1+ 4Kh2 Qe5+ fails to 5f4!. But again, 3Rg7+ is possible, followed by Bh6+/Be3 dis+, leading to a winning ending. 

FEN 
3r1r2/p3R1pk/bp2pp2/n3P1B1/7P/2q2N2/P4PP1/R2Q2K1 w – – 0 1