9 digits - sudoku variations!

Play 4 brain teasing logic games - Sudoku | Killer Sudoku | MathDoku | X-Sudoku - with thousands of puzzles. Dont 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 ads9 digits was created by Ivonne & Marcus who love to play logic games.