Look closesly, you've got a 2x2, 4x4, possibly the all-too famous 3x3.
Hints:
Created by Erno R.
Best selling _ _ _ of all time.
Look closesly, you've got a 2x2, 4x4, possibly the all-too famous 3x3.
Hints:
Created by Erno R.
Best selling _ _ _ of all time.