Solving Rubik’s Cubes is a learnable skill. However, to compete at the top level, you’ll have to train hard. Speed cubers can solve a 3×3 cube in under ten seconds these days, after all.

KANAZAWA--Solving a special Rubik’s Cube edition designed by local firm Age Design Co. may be good for the brain but hard on the wallet. The latest in the “Takumi” series of Kogei Rubik ...