Studies composed by
Arkady Ivanovich Yaroslavtsev
(Russia, 21.11.1924)
Little information about him can be found at ChesscomposersBlogspot.
(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) )
The above study has a flaw, pointed out by Alfons Schandl. At move 11 white has Qb5#.