The hero of the game Boxman was stuck in an abandoned mine, he decided to check whether there really were no gems left. It's good that the miner had thought of wearing a helmet when he had to get under the ground, there was a collapse and the entrance was closed. The poor fellow does not dug himself out, he will have to look for another way out. In the caves, the hero found strange boxes and blue circles on the stone floor. If you move all the blocks to the marks, you open the passage to the adjacent corridor, and there you can get to the exit. Help the prisoner to fold the boxes in places to change the color, and activate the door opening mechanism.