Updated for iOS 16

- Updated for iOS 11.

- Updated for iOS 8.
- Moved the game timer to the bottom of the main screen.
- Fixed a bug that would cause the app to freeze when verifying a solution.

A special thanks to Paul Blomdahl for providing updated artwork.

- Now supports fast app switching in iOS 4.0
- High resolution application icon for the iPhone 4 retina display.

Minor bugfix

Added toggle to enable /disable creation of non-symmetric puzzles. Non-symmetric puzzles are generally more difficult than symmetric puzzles.

Resolved compatibility issues with the upcoming iPhone OS 3.0