This is a very challenging puzzle game. You need to collect diamonds by clicking on the boxes of corresponding colors according to the color of the diamonds. There are 7 empty spaces for boxes. If the space is full, the game fails. The mining cart will continue to move forward to take you to collect diamonds deeper. You can build a factory to process and sell your gems. With each breakthrough, the terrain of the mine will become more tortuous, and the arrangement of diamonds will become more elusive. You need to reasonably distribute large and small boxes according to the number and color of diamonds on the wall to successfully pass the level and win!