Nevertheless, European toy producers are allowed to build otherwise formed puzzles which have an analogous rotating or twisting features of element parts for example as an example Skewb, Pyraminx or Impossiball.[forty seven]Cam k?t c?p nh?t k?t qu? x? s? nhanh chóng nh?t t?i anh em. Chúc anh em may m?n!Trên ?ây là nh?ng ki?n th?c c? b?n nh?t k