Block Escape is a sliding-block puzzle on a small board. Drag blocks of different sizes out of the way and guide the big star block to the exit. There are 46 levels, from tiny 3x3 boards to classic openings, and each one is proven solvable.
Sliding one block in a straight line, any distance.
Yes, each is solved by a program, and Best shows the shortest solution.
3 stars if you finish within about 10% of the shortest solution.