Daily Sudoku

Challenge your brain daily with Neon Daily Sudoku, a slick, modern twist on the beloved classic puzzle. Whether you’re looking for a quick mental warm-up or a deep logic workout, this game has you covered with four difficulty levels and a clean interface. Designed by Neon Games, this HTML5 Sudoku experience works flawlessly on both desktop and mobile. Enjoy endless puzzles—play the game of the day or pick a different date to solve a new board anytime!

How to play Neon Daily Sudoku

Game Objective

Fill every 9×9 grid with numbers from 1 to 9, ensuring:

• Each row contains the numbers 1–9 with no repeats.
• Each column contains the numbers 1–9 with no repeats.
• Each 3×3 box also contains 1–9 with no repeats.
• Some cells already have numbers (called givens). Your task is to logically complete the puzzle.

Controls & Inputs

Mouse or touch: Click or tap a cell to select it.

• Use the left-side number panel to input a digit.
• Click once to add a number as a candidate note.
• Click the same number again to confirm it as your final answer.
• Click a third time to erase the number from the cell.
• Arrow keys can also be used for quicker navigation.

Difficulty Levels

Choose from four modes:

• Easy: For relaxed play or beginners.
• Normal: A balanced challenge.
• Hard: Tricky logic chains await!
• Expert: For true Sudoku veterans.

Extra Features

• Daily Puzzle: Play the challenge of the day.
• Date Picker: Click the date to choose a past puzzle.
• Check Errors: Click the “?” icon to highlight mistakes.
• Restart: Use the retry button to clear the grid and start over.

FAQ

Can I play on mobile?

Yes! The game is HTML5-based and fully optimized for phones and tablets.

How do I know if my number is correct?

Use the question mark (?) icon to check for errors at any time.

What are candidates?

Candidate numbers are notes—possible values for a cell. Click a number once to mark it as a candidate.

Can I go back and fix mistakes?

Absolutely. Click a number again to confirm or delete it, and use the retry button to reset the board entirely.

Are there new puzzles every day?

Yes! You can play the daily puzzle or select a past puzzle using the date option.

Is this game timed?

There’s no strict timer, so you can play at your own pace. However, finishing faster can be a fun personal challenge!