Roll the Ball through the maze

Roll the Ball through the maze is a logical game. Move the blocks with your finger to create a path for moving the ball to the red GOAL block. But riveted blocks cant be moved. Unblock it with the minimal moves. The "Solution"-button is available for all tasks(puzzles). Its a very addictive puzzle game. There are 5 groups by dimension (4x4, 5x5, 6x6, 7x7, 8x8). Each group has 5 categories of difficulty. Each categorie has 200 levels. There are total (5x5x200) = 5000 tasks.