Daily chess puzzle: Check Mate #373

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

Black to play and mate White

Dumitru v Kusmir, Rumunjska, 1973

Solution

Quite an unusual finale, but not too hard. 1…Qb3!

and since the Q can’t be taken, 2 Qc4[] Qc4 3 dc[] when 3…Rg8 mates.

FEN

rq6/8/4RP2/3QP3/2p5/2kP4/Pp6/1K6 b – – 0 1