You must move the boxes across corridors to the target squares using the shortest possible path. The corridors are surrounded by walls. A level is completed when all boxes are placed on target squares.
There are 90 different built-in levels. The first 50 of them (which are identical with the 50 mazes of the original Japanese Sokoban) have to be solved one after another, in continuous order.
After you have completed all 50 standard levels in the given order, you may load any higher level you like, and as a bonus, you now are able to undo any number of moves.
High scores are saved by number of moves as well as by number of pushes.
With the built-in editor you can build and save your own levels. You can also download additional levels from the author's Web site.
This program was formerly called "Sokoban for Windows"