Play against computer with various difficulty level by different thinking times and search deep, including over 600 chess opening and PGN file reader.
You may play online games connecting with Free Interne Chess Server (FICS) or Internet Chess Club (ICC).
Hint function may offers to you for good move.
250 chess puzzles available.
Download thousands of games or openings as online and you may analyze and watch them. Zipped PGN format is already supported.
There is no advertisements on payed version.