Key Features
- Daily Challenges: Fresh boards appear every single day. You can track your progress on the calendar and never run out of fresh logic puzzles.
- Difficulty Scaling: Six distinct tiers adjust the board density. The Evil mode is brutal.
- Visual Comfort: Four color themes help you avoid eye strain. The dark mode is a lifesaver during late-night sessions.
- Deep Statistics: Track your completion times and error rates across thousands of boards.
How to Play
Sudoku: The Basics
Tap or click a cell to select it, then punch in a number from one to nine using your keyboard. You need every digit to appear once per row, column, and block. Knowing how to play Sudoku is simple, but your first attempt might feel slow while you adjust to the interface.
Sudoku: Avoiding Mistakes
Watch your placement. Most players get tripped up by guessing instead of tracking candidates. If you fill a cell based on a hunch, you will likely hit a wall later. Use the notes feature to mark potential numbers. Stick to the logic, and you will eventually nail a perfect run.
Sudoku: Leveling Up
Once you clear the easy grids, try the Evil difficulty. It turns the game into an absolute nightmare of constraints. You will need to spot hidden pairs and triples just to keep the board moving. It is a massive jump in intensity compared to the starting levels, so prepare to think hard.
Who Should Play Sudoku?
Frequently Asked Questions about Sudoku
What are the Sudoku controls?
You use your mouse to select cells and your keyboard to input numbers. It feels snappy, though the lack of a dedicated undo button for notes can be frustrating.
How many levels does Sudoku have?
There are over 12,000 unique boards available. You can pick from six different difficulty levels to keep things fresh for as long as you want.
What games are similar to Sudoku?
If you want more brain-teasers, try Super PuzzleCraft for building or Obby: IQ Escape from the Laboratory if you need a shift toward platforming physics.
Is Sudoku free to play?
Yes, Sudoku is completely free to play on Nub Games. Optional in-app purchases are available. No download or registration required.
Can I play Sudoku on mobile?
Sudoku works on both desktop and mobile devices. Best played in none mode.
What age rating is Sudoku?
Sudoku has a content rating of 0++. It is suitable for all ages.
