"The ones you buy online come with springs and screws so you can adjust them, " said former world champion Breandan Vallance from Scotland, who took up cubing to travel the world.
WSJ: One Rubik's Cube, Many Knockoffs, Quintillions of Possibilities
Or piggyback on the phenomenon of competitive speed-cubing?
应用推荐
模块上移
模块下移
不移动