一、Describe：
This game is a logic puzzle. You have to unscrew the bolts from the planks! Your task is to choose the right bolt to unscrew so that you can unscrew all the planks !
Compete with friends and colleagues ! Earn points, complete levels . At first, it will be easy to complete the levels, but each new level will be more difficult than the previous one! Prove that you are a pro at logical thinking, complete all the levels!
Enjoy the game !
二、Enjoy Game：
三、How To Play：
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