  blueballoon | The black arrows are a kind of contruction manual - hence the title "build a cube" Posted on 12/9/15 9:47 PM  |
  sandyeggan | I don't get the purpose of the black squares except maybe to confuse us? So I took off points for that. Otherwise, well done! Posted on 6/17/15 3:35 PM |
  ajenomia | Lo negro lo complica un poco, pero en general es sencillo. Bien. Posted on 10/26/13 12:47 PM |
 luweewu | Nice one. Posted on 10/21/13 10:37 AM |