Sudoku

Level

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Game Introduction

Experience the timeless logic puzzle with a modern, distraction-free interface designed for clarity and focus. Classic 9×9 Sudoku and unofficial NYT-Sudoku style puzzle with a clean, newspaper-inspired UI that puts the game first.

Unofficial NYT-Sudoku

Puzzles are generated in your browser. Progress is saved locally.

Fast Start

Pick a level and start immediately—no sign-in required.

Accessible

Keyboard-friendly numbers and clear focus states.

How to Use Game

Basic rules: each row, column, and 3×3 box must contain 1–9 exactly once.

1
Select a cell
Click an empty cell to focus it.
2
Enter a number
Use the 1–9 keypad to fill the selected cell.
3
Pause anytime
Use the pause button; switching tabs or navigating away also pauses automatically.
4
Notes (pencil marks)
Toggle Notes to add candidates instead of a final number.
5
Hint
Use Hint to fill a correct number for the selected cell.