Selection out of more than 135 studies composed by
Sergei Osintsev
(Russia, 8.7.1960)
On ChesscomposerBlogspot a little information about him.
He is International Master of the FIDE for chess composition since 2012.
He is Fide Master of the FIDE for chess composition since 2008.
(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) )