I present you a Super Sudoku 16x16 puzzle. This is not a classic Super Sudoku, in fact it has a supplementary constrain: each long diagonal (grey cells) must contain a number from 1 to 16. When a puzzle has many constrains, it helps us to eliminate options. So enjoy this puzzle... it is a perfect antidote against boringness.
The printable files PDF.
Puzzle: super_X_00035.pdf
Solution : super_X_00035_sol.pdf
This wonderfull puzzle (and many more other Super Sudoku variations) could be find in the book Super Sudoku 16X16 Variations (Amazon UK)
Have a great day !