A problem by Dr Jan van D Strydom, to keep you busy over the next few days.
It took 1st Prize in the London Observer tourney, 1966.
The first move is brilliantly hidden, and makes solving all the more difficult.
White to play, Mate in three
1. rd8 with the threat
if 1. … re4 2.qxe6+ bxe6 3.ng6 mate
if 1. … re2 2.qd3 rxc2 3.nd7 mate
if 1. … na3 2.qb8+ ke4 3.qf4 mate
if 1. … ke4 2.qd3+ ke5 3.nd7 mate
if 1. … nc7 2.qb4 nf2 3.qd4 mate