16x16 Ultimate Sudoku brings the most challenging Sudoku puzzles ever!

16x16 Ultimate Sudoku is the easiest and most fun way to play Sudoku - and this isn't just traditional Sudoku, but 16x16 size puzzle boards making this into the most challenging version of the game you can find.

This game calculates new games every time a puzzle board is loaded, making this a unique and powerful game.

With five difficulty levels (from Beginner to Genius) and new puzzle boards generated each time, the game is always challenging, exciting, interesting and completely unique.

As you play, the game highlights invalid numbers to help the user while not taking away any of the pleasure and continuing to let you enjoy a stimulating game.

So put your brain in gear and enjoy 16x16 Ultimate Sudoku. Remember, each puzzle board loaded is completely unique.

Please note: on some older devices, puzzle boards may take around 10-15 seconds to load due to calculating complex games. Please be patient, thanks!