The player on the left side enters the dynamite elevator from his side and goes down 2 times, lifting the same elevator on the right. These elevators are needed to introduce players to the rule of the puzzle. Go on the following steps to pass this puzzle
The special thing about it is, that they are paired on both sides and their feature is that lifting one elevator on the left side, you lower the other on the right side.
You see now an old, broken mine with a lot of wodden elevators.