# Daily Sudoku

> A fresh nine-by-nine number puzzle every day.

Three new sudoku puzzles every day, one Easy, one Medium and one Hard, the same for everyone. Every number can be worked out with logic, never a guess, and the harder puzzles ask for cleverer tricks. Your character stands by the number pad, thinking along with you and cheering every row you finish. Solve at least one a day to keep your streak going.

- Play: https://sidekickarcade.com/play/daily-sudoku/ (in the browser, phone or computer, free, no sign-up)
- Neighborhood: [Puzzle Park](https://sidekickarcade.com/category/puzzle/index.md)
- Controls: Tap, click or type 1 to 9
- Best on: portrait screens
- Coins for goals: 4 per 1 stars, up to 12 a run

## How to play

1. Fill the grid so every row, every column and every 3 by 3 box has the numbers 1 to 9, once each.
2. Tap a square, then a number on the pad. On a keyboard, move with the arrow keys and type 1 to 9.
3. Turn on Notes (or press N) to pencil in the numbers a square might hold. Erase and Undo fix slips, and the Show mistakes switch colors wrong numbers pink if you want the help.
4. There's a new Easy, Medium and Hard puzzle every day. Solve one a day to grow your streak; harder puzzles earn more coins, and you can replay a solved one just for fun.

## Tips

- Look for a row, column or box with only one or two blanks, and fill those first.
- Pick one number and scan the whole grid for it: each box needs it once, so it often has only one place to go.
- Turn on Notes to pencil in candidates. When a square has only one candidate left, that's the answer.
- Every puzzle can be solved with logic alone, so you never need to guess.

## Questions

### Is it free?

Yes. It's free to play in your browser, with no download and no sign-up. Coins you earn are for fun and can never be bought.

### How many puzzles are there each day?

Three: one Easy, one Medium and one Hard, the same for everyone. Solve at least one a day to keep your streak.

### Do I ever have to guess?

No. Every number can be worked out with logic. The harder puzzles just need cleverer tricks.

### Can it show my mistakes?

Yes, if you want the help. The Show mistakes switch colors wrong numbers pink. Leave it off for a pure solve.

### Can I play on a phone or tablet?

Yes. It's built for touch first and plays the same on a phone, a tablet, a Chromebook or a computer.

## Achievements

- **First fill** (bronze, 15 coins): Solve your first daily puzzle.
- **On a roll** (bronze, 25 coins): Solve a puzzle three days in a row.
- **Ten down** (bronze, 30 coins): Solve 10 daily puzzles.
- **Deep thinker** (silver, 40 coins): Solve a Hard puzzle.
- **Week of wits** (silver, 50 coins): Keep a 7-day streak.
- **Fifty filled** (silver, 60 coins): Solve 50 daily puzzles.
- **Clean sweep** (gold, 80 coins): Solve Easy, Medium and Hard on the same day.
- **Month of logic** (gold, 150 coins): Keep a 30-day streak.
- **Grid keeper** (gold, 120 coins): Solve 200 daily puzzles.
- **Sudoku Sage** (diamond, 300 coins): Keep a 100-day streak. Earns the title "Sudoku Sage".

## More to play

- [Five Letters](https://sidekickarcade.com/play/five-letters/index.md): Guess the five-letter word in six tries. (Word Library)
- [Crossword Snack](https://sidekickarcade.com/play/crossword-snack/index.md): A small five-by-five crossword, new every day. (Word Library)
- [Number Merge](https://sidekickarcade.com/play/number-merge/index.md): Slide the tiles and merge matching numbers. (Puzzle Park)