The prized composition is a miniature selfmate (the White plays and forces the Black to give mate) in thirteen moves. There is a twin, moving all pieces two rows down, again selfmate s#13.
|s#13, Twins : a) Diagram, b) a8=a6|
1.Se5+ Kf6 2.Sc4 Kg6 3.Qhh5+ Kf6 4.Qh6+ Rg6 5.Qf3+ Ke6 6.Qhe3+ Kd7 7.Qb7+ Kd8 8.Qd4+ Rd6 9.Qa8+ Kc7 10.Qe5 Kd7 11.Qg7+ Ke6 12.Qg4+ Kf6 13.Qd8+ Rxd8#
1.Qe2+ Kf4 2.Qe6 Kf3 3.Sd4+ Kf4 4.Kf7 Kg5 5.Qeh6+ Kg4 6.Qe2+ Rf3+ 7.Kg6 Kg3 8.Qhh2+ Kg4 9.Qe6+ Rf5 10.Kh7 Kg5 11.Qg8+ Kf6 12.Qd8+ Kf7 13.Qh5+ Rxh5#
To composer achieves his goal with continuous checks and pins. The pieces have great mobility. There are Switchbacks and Circuits of the pieces. The final mate image is Echo Chameleon (=the bK is mated in a squares of different colours) in Diagonal Mirror position.