UI is very buggy – Chess Puzzles Pro Review

The UI is buggy. You move pieces by tapping once on the piece you want to move, then tapping on the square to which you're moving the piece. If you tap wrong (e.g., you tap on a square that would be an illegal move, or you tap to move the Rook then decide to tap to move the Queen), the UI gets stuck and there's no going back. The application simply doesn't work for me. Hopefully, the developer will address this. I like the idea of solving mating puzzles, but the bugs are a deal breaker.
Review by TwoStepFeet on Chess Puzzles Pro.