Daily chess puzzle: Check Mate #195

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

Black to play and mate White

Aitken v Keller, Newcave 1954

Solution

I presume Newcave might be Newquay, but, anyway, a fairly standard finale, given the threat of back rank mate. 1…Qd1+ 2 Nd1 Nf3+ 3 Bf3 Re1 mate, or similar endings if White plays alternative defences.

FEN

1r2r1k1/p2q1pbp/6p1/4n3/5Q2/2N3Pb/PPP2PBP/R1BR2K1 b – – 0 1