Quiz
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: When you start the game and enter the main interface. in an 8x10 checkerboard, 2-3 rows of squares are randomly raised from the bottom. you can only move one square in the horizontal direction at a time, and there is space next to the square to be moved.When you accidentally move an error, you can click the back button to go back to the previous step.
: When you accidentally move an error, you can click the back button to go back to the previous step.Play !
