Isometric boxes

The most extremely hard game you will ever encounter. 40 levels that will make you think like never before. Do you have the brain power for all 40 levels? Test yourself, test your brain !

[How to play] - Touch in-between the boxes you want to merger.
[Win] - When only 1 box is left on the stage.
[Defeat] - No more moves.

So, move carefully and rethink every next move you decide to make.