not worth full version buy
Great app Many useful exercises.
Excellent app Interesting positions, thorough analysis, pity only a slight part of them are given costless
Good training tool
great apps for player
Attention! You should have an internet connection on the first launch to verify your purchase!
* Added cloud sync option for statistics and bookmarks
* Added "Auto hints" option - you can use it to turn off automatic hints after wrong move attempts
* Added solved exercises graph on the statistics screen
* Added Tag (colored commentaries) option for bookmarks
* Improved puzzles sharing into images
* Various fixes and improvements