A Task from Nikos Pergialis

There are composers of chess problems in various countries of the world.
In some countries there is support from the state, there are schools with teachers and students, and they have production of nice compositions.
On the other hand, something odd has been observed in Greece : in various times there is lack of peace - comfort - good health - free time, and again some important composers appear.
An example was Demetrius Kapralos. In our era, an example is the last Rebetis (remember the rebetiko song!), the aged but productive Nikos Pergialis.

Below you see a direct two-mover of his, with white royal battery (the king is the front piece and when he moves, the rear piece delivers mate). For the royal battery, the maximum number of thematic variations in an orthodox two-mover is six. Nikos Pergialis achieves that, this is a Task, and he says

This Task, my urchin friends,
I bring to you with pride.
With only a dozen pieces
- I think it is first time!

8/8/4pp2/1BBk3s/3P4/2p2K1Q/2p5/3s4 (5+7) Meredith

Problem-610 Nikos Pergialis original #2 {Try 1.Qh1? e5!} Key : 1.Qg2! [2.Ke2#/Kg4#] 1...Sf2 2.Kxf2# 1...f5 2.Ke2# 1...Se3 2.Kxe3# 1...Sg3 2.Kxg3# 1...c1=S 2.Kg4# 1...Sf4 2.Kxf4# 1...e5 2.Qg8# (non thematic variation) Task with royal battery.