Ziina Magnetic Sudoku 3x3 Cube

The fascinating sudoku cube series have 9 different colors on each face when they are solved. There are 3 versions:

Version A - There are 8 corners each of which has solid colors.  There is only one corner that has 2 blue colors and a green color. Each edge has one solid color. 

Version B -  There are 2 centres with the same color; each corner has 3 different colors and there are 2 edges with solid colors.

 Version C has a different colored centre; each edge has 2 colors and each corner has 3 colors.