Rubik’s Speed Cube
Invented by Erno Rubik, the Rubik’s speed cube is a popular 3×3 puzzle that has fascinated puzzlers for decades. It’s also spawned a competitive sport called speedcubing. Each of the…
Invented by Erno Rubik, the Rubik’s speed cube is a popular 3×3 puzzle that has fascinated puzzlers for decades. It’s also spawned a competitive sport called speedcubing. Each of the…