16x16x16 magic cube

 

Construct a Franklin panmagic 16x16x16 cube. This cube must be 2x2(x2) compact and 1/2 rows/columns/diagonals in the levels and 1/2 space diagonals must give 1/2 of the magic sum.

 

I have constructed 3 versions: Franklin panmagic (1), Franklin panmagic (2) and Franklin panmagic (3).

 

Whizz kids say that only the third version is a valid Franklin panmagic 16x16x16 cube, because it consists of 8 proportional Nasik 8x8x8 magic cubes.