Daily chess puzzle: Check Mate #453

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

White to play and mate Black. 

Landa v Klaman 1978

Solution 
1 Qc1! trying to attack on the black squares, taking advantage of the Pb4 keeping the Bb6 out of the game. 
1…Bf5 2 Qh6 threatening 3 Qf8 mate, and also 3 Nh5 or 3 Nf5: 1-0

FEN 
7k/3q1p1p/1b2bp2/1p2pN2/1P6/2P2PNP/2Q3PK/8 w – – 0 1