How to play
Each row, column, and 3×3 block must contain each digit from 1 to 9 exactly once. Click a cell and type a number to place it; right-click or long-press to add pencil marks. Use the difficulty selector to choose your level; the daily puzzle provides a shared challenge across all players.
Game features
- Five difficulty tiers: beginner, easy, medium, hard, expert
- Pencil-mark support with optional auto-candidate generation
- Conflict highlighting (optional) to flag rule violations
- Daily puzzle with global completion-time leaderboard
- Hint system (limited per puzzle) for stuck players
- No ads inside the puzzle — play uninterrupted
Editor review
Sudoku Master is Sudoku. The 1979 Howard Garns invention that the Japanese branded and the world adopted in the early 2000s. Place digits 1 to 9 in a 9x9 grid. Standard rules. Rows contain all nine digits. Columns contain all nine digits. 3x3 boxes contain all nine digits. The puzzle is the constraint.
Look, the test of a good Sudoku implementation is the difficulty grading and the input feel. Sudoku Master nails both. There are five difficulty tiers (easy through evil), and the easy puzzles really are solvable in five to seven minutes while the evil ones take me forty-five to seventy and require techniques like X-Wing and Swordfish. The grading is honest. I've reviewed Sudoku apps that called puzzles "easy" when they were medium, which is irritating in a way only Sudoku players will get.
Input feel: tap a cell, pick a digit, the cell updates. Pencil-marks for candidates are one tap away. Undo is unlimited (which matters because a misclick can ruin a thirty-minute puzzle). The error-highlighting toggle defaults to off, which is the right call for a Sudoku app aimed at serious players.
Four-and-a-half stars. I'd give it five but the daily puzzle isn't actually a fresh puzzle, it's pulled from a hidden pool of about 200 daily seeds that recycle. Knock half a star for the dishonesty.
Math tutor turned freelance writer. Reviews puzzle and logic games, mostly the ones with an obvious right answer she got wrong on the first three tries.
Frequently asked questions about Sudoku Master
How do I play Sudoku Master?
Each row, column, and 3×3 block must contain each digit from 1 to 9 exactly once. Click a cell and type a number to place it; right-click or long-press to add pencil marks. Use the difficulty selector to choose your level; the daily puzzle provides a shared challenge across all players.
Is Sudoku Master free to play in my browser?
Yes. Sudoku Master runs free in any modern browser. No installation, no signup, no payment required. Click the play button to load the game.
Does Sudoku Master work on mobile devices?
Sudoku Master runs in mobile browsers on iOS and Android with touch controls. Most puzzle games on FinanceMass support both desktop and mobile, though precision-heavy titles tend to play better on desktop with a keyboard or gamepad.
Who reviewed Sudoku Master on FinanceMass Arcade?
Maya Brennan reviewed Sudoku Master. Their full editor review appears above and their other coverage is available on their author profile.
Where can I find more games like Sudoku Master?
More puzzle titles are available on the Puzzle category page. Every game on FinanceMass has been played and reviewed by one of our three reviewers before publication.