Classic puzzles are the standard Sokoban puzzles. These puzzles are marked with a Box ( Classic Puzzle ) next to the puzzle name. The goal of the puzzle is to push all of the boxes onto the goals. Listed below are the specific rules to solve a Classic puzzle:
Only one box can be pushed at a time.
A box cannot be pulled.
The player cannot walk through boxes or walls.
The puzzle is solved when all boxes are on the goals.