Fix some bugs please

Rate ur app by four stars cause its really needs to explain, what do u want from user in each exercise: mate or win the positioning war. And its have some sadly bug: when it needs to change a pawn to some figure, its not counted as win, even its checkmate. And its dont tell to me, right choice Ive had or its wrong.
Pls fix it, I really love ur app!

Aresenka about Chess Tactics Pro (Puzzles), v1.04