Science for fun
Sokoban
On the Maths is Fun website there are 60 levels of the Sokoban, a classic Warehouse puzzle from Japan.
The solutions for levels 1 to 20 can be found here.
Below are the Sokoban solutions for levels 31 to 40 for the puzzles from mathsisfun.com. The Sokoban solutions for levels 21 to 30 are here. The Sokoban solutions for levels 41 to 50 are here. The sets of solutions 21-30, 31-40, and 41-50 are on my YouTube Channel.
Levels 31 to 40
Level 31
Level 32
Level 33
Level 34
Level 35
Level 36
Level 37
Level 38
Level 39
Level 40