Known glitches

Give me a Hand and Give Up buttons may be left active when they should not (when the game is already over)

Give Me A Hand may propose a contradictory solution if game contains already fixed solution for some cells

Next release

Scheduled for end of October, will include fixes for the two small problems describe here above and will be an universal version (iPhone/iPad) with a specific UI for iPad with bigger puzzles to solve (and a separate GameCenter's leaderboard), and support for zooming the game view. May also support previous iOS versions back to 4.0 (investigation in progress).

Preview of iPad version

Support