Number mark This case is.

Number Mark
10 pieces from 1 to 10 pieces total 2 pieces from # total 12 pieces total
How to play
Shuffle the pieces 1 to 10, face down. Arrange the top 5 and bottom 5 pieces face down. Randomly rearrange the numbers to the top 12345 bottom 678910. The rule is to use # to swap the frames between the top and bottom frames. The correct # cannot be placed in the same place twice in a row.