Some studies composed by 

Michael Prusikin (Ukraine, 1978)

He is a German chess grandmaster Ukrainian origin.
In February 2015 he occupied number 30 of the German chess ranking.

Since 1996 he composes studies.

More information can be found on German Wikipedia and Youtube

(All his studies, more exact dates, possible corrections or cooks and exact details about sources can be found in the

Harold van der Heijden database V (31-12-2015) ).

Studies selected by Peter Krug.