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From Ruslan Goncharenko:
Unblock is a logical game.The goal is to get the gold bar out of the board by sliding the other bars.Unblock comes with 5 difficult levels. There are 5 categories of difficulty.Each categorie has 200 levels.Each level has 9 puzzles(tasks):8 puzzles 6x6 and 1 super-puzzle 7x7.There are total (5x200x9) = 9000 tasks.The easiest tasks are solved in 6 moves.The most difficult - in 50 moves.The "Solution"-button is available for free (!) for all tasks(puzzles). No limit.