TouchGen writes: "Yukendo Pro is basically the same game as KENKEN, the mathematical suduko. So far I can't find anything new in Yukendo Pro other than larger playing fields. In KENKEN the maximum size is 6×6 squares but Yukendo Pro brings a massive 9×9 grid.
Input is totally touch based with the numbers beneath the puzzle, and it works well.
Why should you get Yukendo Pro instead of KENKEN? My answer is: you shouldn't. KENKEN has better presentation, and comes with the great academy helping you grasping the gameplay. In Yukendo Pro you only get a couple of stale tutorial screens."