Selection out of more than 100 studies composed by

Sergey N Tkachenko (Ukraine, 26.1.1963).


An article about him written by himself Tkachenko.

He is Fide Master of the FIDE for chess composition since 1990. 

(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) ).