Project 9 Sudoku has 10000+ classic number games and comes in five difficulty levels: Beginner, Easy, Medium, Hard, Extreme! Play Beginner sudoku to exercise your brain, logical thinking, and memory, or try medium and hard sudoku to give your mind a real workout.
Our sudoku puzzle games have some features that make this free number puzzle easier for you: hints, auto-check, and highlight duplicates. What’s more, in our app each classic sudoku puzzle game has one solution. You will find all you need whether you are solving your first number riddle puzzle, or you’ve progressed to expert difficulty. Choose any level you like!
✓ Complete Daily Sudoku Challenges to get unique trophies
✓ Take part in Seasonal Events and win unique medals
✓ Challenge yourself figuring out your mistakes, or enable Auto-Check to see your mistakes as you go
✓ Turn on Notes ✍ to make notes as on paper. Each time you fill in a cell, notes are automatically updated!
✓ Highlight duplicates to avoid repeating numbers in a row, column and block
✓ Hints can guide you through the points when you are stuck
Last Updated on April 27, 2021