Now, you can announce your achievements on social networks.

Updated to meet the new privacy requirements.

This update from Apple will improve the functionality of this app. No new features are included.

Completely re-written for latest iOS.

A new set of 2000 puzzles with an altogether new Leaderboard to challenge your friends.

Now also runs on iPhone.

Congratulations to all who succeeded in solving the puzzles and a special recognition to those who solved all 1000 puzzles. We are now introducing a completely new set of 1000 puzzles with a brand new leaderboard to start the competition again. Good luck to everyone in your attempts to be at the top of the list and be the first one to reach the top of the mountain!

A minor modification in the user interface