Ultimate Sudoku
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Play Sudoku HTML5, one of the most popular puzzle games of all time
Train your brain with Ultimate Sudoku! Your goal in this challenging logic puzzle is to fill a grid with numbers so that each row, column, and section contains all the digits between 1 and 9. Play in easy, medium or hard mode, and use hints and other tools if you get stuck. Can you solve this fun math game and fill out the entire grid?
The Ultimate Sudoku game on Play123 has a leaderboard for saving scores.
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Looking for more number puzzles? Ultimate Sudoku is just the start of your brain-training fun. I totally got hooked on Sudoku Printable - perfect for when I want a medium-difficulty challenge. For beginners, Easy Sudoku is super friendly to learn the basics. And when winter comes around, try Xmas Sudoku for a festive twist on the classic format. These games are part of our awesome Brain Training Games collection that keeps your mind sharp while having fun.