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)

"Start with 27 small cubes." Suppose these small cubes are all wirefram cubes that are designed to be collapsable.


"Put them together" Carefully build one 3x3 layer at a time, gluing them together, except don't glue the middle one.


"Remove the cube in the middle" Since all the cubes are wire frames, use some long narrow tweazers to reach in, collapse the middle one, then pull it out (kinda like that old kids game, DOCTOR).


Looking forward to seeing the real solution.

Posted by Greg on 2003-10-24 19:14:25