Daily chess puzzle: Check Mate #447

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

 White to play and mate Black. 

Borkovski v Grigorov, 1977

Solution 

I partly failed with this one. I chose 1 Re7+, which I thought mated cleanly, but after 1…Be7 2 fe+ Ke7 3 Qg7+, I missed that Black’s king could move to e6, and wasn’t forced to move to e8. After 3…Ke6, White still wins, but slowly. 

Better 1 Qc4+! d5[] 2 Qc7+ Kg8:

3 Qg7+!

3…Bg7+ 4 f7+! Kh8 5 Re8+ Bf8[] 6 Rf8+

and the king is hunted out, with mate following check after check.

FEN

5b2/5k1p/3p1Pp1/r7/1p1Q3P/qP6/2P2R2/1K2R3 w – – 0 1