Splitting Headache

Designed by Bill Cutler 1991, made by Cutler / McFarland / Peterson.
(wood, 2.5 inches)

Pieces formed from black and white unit cubes and half unit cubes (starred above) must be assembled to a 3x3x3 cube with a checkerboard pattern on all sides. The solution is unique and does not follow the checkerboard pattern in the hidden center.