Play 4 brain teasing logic games - Sudoku | Killer Sudoku | MathDoku | X-Sudoku - with thousands of puzzles.
Don't get stuck - 9 digits' helpers guide your next move and teach you solution strategies.
• choose levels from beginner to master • easily enter digits and pencil marks • get step-by-step hints for your next move • unique solutions, no guessing needed • plenty of settings to tweak your game experience • no ads
9 digits was created by Ivonne & Marcus who love to play logic games.