At Tredoku.com you can find different kind of 3D Sudoku’s.
For Tredoku the same rules apply as for normal Sudoku’s, only the Sudoku grid looks a bit different in 3D. Tredoku puzzles come in infinite forms due to the extra dimension which gives you as a Sudoku player, a unique experience.
At the website you can find information on how to play Tredoku and daily free Tredoku puzzles. Happy Puzzling!
Tredoku puzzles books are also available at Amazon.