Masterthe Grid.
Beautiful Sudoku for curious minds. Infinite uniquely generated puzzles, smart hints, and the deep satisfaction of every perfect solve.
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A size for every solver
Start simple with a quick 4×4, master the classic 9×9, or conquer the formidable 16×16 for the truly obsessed.
4×4
Easy · Medium
9×9
Easy · Medium · Hard
For the dedicated
16×16
Easy · Medium · Advanced
One home for every puzzle
Sudoku is live now. More puzzle types are in development and will appear here as they launch.
Sudoku
The classic logic grid
Place digits 1–9 so every row, column, and 3×3 box contains each number exactly once. Available in 4×4, 9×9, and 16×16.
Nonogram
Paint by numbers
Fill cells based on numeric clues to reveal a hidden picture. Also known as Picross or Griddlers.
Kakuro
Cross-sum challenge
A crossword puzzle where each word is a sum. Combine logic and arithmetic to fill the grid.
KenKen
Arithmetic meets logic
Fill the grid with numbers that satisfy the caged arithmetic clues. KenKen rewards lateral thinking.
Everything you need to play well
Puzzlumina is built around the solver first — nothing in the way, every detail considered.
Infinite Puzzles
Every game is uniquely generated using a fast constraint-based algorithm. You will never play the same puzzle twice.
Smart Hints
One hint available at a time with a 5-minute cooldown. Get unstuck without robbing yourself of the challenge.
Deep Stats
Track win rates, mistake counts, average completion times, and streaks across all puzzle sizes.
Print & Export
Export any puzzle as a beautifully formatted PDF. Print for the table, solve offline, or share with a friend.
Light & Dark Mode
A refined experience in both modes. The grid looks just as crisp at midnight as it does in the morning.
Instant Checking
Wrong entries are flagged the moment you type them — in red, visible but not locked — keeping the game honest.
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