Slide, flip and solve.

The object of Flip Side Brainteaser Challenge is to line up the numbers zero to nine in sequential order by sliding the tiles and flipping the cylinder to reverse the number on the top and the bottom.

Watch out! Each time you flip the Flip Side cylinder, you reverse six of the ten numbers. Six additional recommended Flip Side challenges are included.

By Thinkfun. 8 years to adult.