Unblock is a free classic sliding block puzzle, the objective is to move the red block out of the board by sliding the other blocks out of the way. With thousands of puzzles and different difficulties, there are hours of entertainment while you are on a queue or on a traffic jam, no need to rush!


FEATURES:
- thousands of puzzles (and more to come)
- three different difficulties
- google play games achievements
- google play games leaderboards
- hint system to show the perfect solution
- easy puzzle reset
- smooth interface
- night mode

The difficulty is calculated based on the number of moves and the number of possible solutions.