Angel's Wings techniques are implemented in this version to solve Expert level puzzles, available to download from
BlackBerry World, for all the BlackBerry devices running BBOS 5 and up, PlayBook, and all the BlackBerry 10 devices:
http://appworld.blackberry.com/webstore/content/27406089
Google Play, for all the Android devices, including BlackBerry Priv:
https://play.google.com/store/apps/details?id=com.touchsudoku.app
