- Latest iOS and iPadOS Compatibility updates - Minor bug fixes

- Dark Mode support - Support for all new iPhone and iPad screen resolutions (+ MacOS Apple Silicon ready) - iOS 14 compatibility improvements - Bug fixes - iOS 12+ required for this update

- Added a new Color Scheme option: Light Green and Yellow! - Improvements to iOS 12 compatibility

- iOS 12 Compatibility updates - A couple of small bug fixes

- Support for the iPhone X including Super Retina HD graphics - Significantly improved compatibility with iOS 11 - Speed improvements - many bug fixes - new icon

- Fixed bug in which the app would crash or possibly not send the correct .pgn file in an email when exporting a puzzle. - Fixed crash when re-running the hint solver multiple times - Updated a few alternate puzzle solutions given in the hints - other minor fixes and iOS compatibilities issues

- Larger buttons on the game board + menu - Fixed issues that could cause the app to crash when the next/previous puzzle button is pushed (especially when the hide solved puzzle option is enabled) - other bug fixes and puzzle corrections

Version 3.1.1 - Fixed: crashes on iPad 2 when promoting a pawn (due to an iOS 8 bug) New in version 3.1 - iOS 8 support - Retina HD graphics! - Optimized for the iPhone 6 and iPhone 6 Plus - Improved iPad retina graphics

- iOS 8 support - Retina HD graphics! - Optimized for the iPhone 6 and iPhone 6 Plus - Improved iPad retina graphics - a couple of small bug fixes

- iOS 7 Redesign! - Improved Facebook sharing (with board screenshots) [iOS 7+] - Added screenshot of chess board to .pgn e-mail [ iOS 7+] - minor bug fixes

- Added the option to export a puzzle as a PGN file! You can e-mail the file or directly open it in another app. - Added rotation for upside-down portrait - Fixed a bug that caused puzzles to get skipped when the hide solved puzzles option was selected. - Other small updates and improvements.

- iOS 6 Compatibility - Optimized for iPhone 5 (taller screen)

- Retina graphics update for the iPad! (including: chess piece sets - Alpha, Berlin, Cheq, Leipzig, and XBoard, as well as the marble and wood board themes).

- Updated graphics for the new iPad's Retina display - iOS 5.1 compatibility

- Added a "+" button at the bottom of the game board with options to go to the next or previous puzzle as well as help options - Added an option to go to the next puzzle after a checkmate - Fixed a couple of bugs and iOS 5 compatibility issues

- Added an option to show the chessboard coordinates - Toned down the piece movement animations a little - Added option to reset the solution for a particular puzzle (in the info button dialog) - performance improvements - bug fixes including leaderboards not updating correctly Tip: You can swipe left and right on the move list instead of hitting the back and forward buttons!

- Bug Fix: empty board bug- puzzles would load with no pieces and would require application to be closed completely. - Other small bug fixes

- Bug Fixed: Sometimes a loading indicator (white spinning dots) would not stop correctly when a puzzle was loaded. This caused all the puzzles to not load until the app was completely restarted. - Added text solutions for puzzles – this is especially useful for puzzles that the solver has a hard time finding the solution.

- Added option to show a hint/solutions button for each puzzle. When this option is turned on a button is shown at the bottom of each puzzle that can be used to give a hint (the first correct move) or the full solution for that puzzle. - Couple of small bug fixes.

New in Version 2.0 --------------------------------- - Completely revamped chess engine that is much stronger - Timing clock is displayed while you are working on each puzzle. How long you take to solve a puzzle is stored. - New options: more chess piece sets and more colors schemes including wood and marble. (Improved the options menu as well) - Social Gaming: Leaderboards to compare the number of puzzles you have solved with your friends and other players. Facebook integration - including the ability to post your progress and ask your friends for help on a puzzle. - Universal app - works on iPhone, iPod Touch, and iPad - high resolution graphics all around (where supported). - Many bug fixes and stability enhancements - Has anyone solved all the puzzles yet? Let me know - I can add more!

Updated for iOS 4 -------------------- - multi-tasking enabled for iPhone 3GS+ - high resolution images for iPhone 4 - new modern chess piece set and updated xboard pieces - small bug fixes

- More improvements in handling how the computer chooses its moves. This may cause the computer to think longer in certain situations; but will result in better game play.

- Increased the maximum amount of time the app can use to compute a move; this corrects the issue where the app would make non-optimal moves on older devices.