Unfolded Cube Puzzle Now, the big cube is made of 27 smaller
glass cubes (3 rows, 3 columns, 3 deep), which are either clear
or blue. And as you look through the cube, you can tell the
colors of the 3 small cubes behind: Your job is to correctly
identify the color of the square on the surface. Use the "Clue"
button to reveal one square. You can continue to press the
"Clue" button until you solve the puzzle, but that isn't a
challenge is it?