Start with 27 small cubes. Now put them together to make one larger cube. Without touching the sides of the larger cube, remove the cube in the middle to leave 26.

(Note: No one may touch the outer cubes or in any way do anything that would move or change them)

I have read the solution. I get it, makes sense. But here's one thing - in the problem statement you said:

(Note: No one may touch the outer cubes or in any way do anything that would move or change them)

In your solution, the "outer cubes" are 2 and 6. But those aren't perfect cubes.

Just being a nit-picky devil's advocate =) No justification needed. It is a neat solution!

Posted by nikki on 2003-10-26 18:59:25