Kakuro Puzzle Online – Play Free Daily Kakuro

Play Kakuro online for free — a fun and challenging number puzzle often called a “mathematical crossword.”
Fill in the grid using digits 1–9 so that each row and column matches the given sums without repeating numbers.

Choose your board size, try the daily challenge, and compete on the leaderboard.

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How to Play Kakuro

Kakuro is a number puzzle — often called a “mathematical crossword.”
Your goal is to fill every white cell with digits from 1 to 9 so that all clues are satisfied.

Basic Rules

Each horizontal or vertical group of cells (a run) must add up to the clue number shown in the black cell.
No digit can be repeated within the same run.

Reading the Clue Cells

Black cells are split diagonally into two parts:

The top-right number is the sum of the cells going to the right
The bottom-left number is the sum of the cells going downward

Controls

Click a white cell to select it
Enter numbers using the Number Pad or your keyboard (1–9)
Press 0, Backspace, or Delete to clear a cell
Hover over a clue cell to see valid number combinations

Buttons

New Puzzle — Load a new puzzle in the selected board size
Check — Highlight incorrect entries
Reset — Clear the board and restart the timer
Auto Solve (No Score) — Show the solution (no leaderboard score)

Daily Challenge

A new Kakuro puzzle is available every day — the same for all players.

Select a date in the Daily panel
Click Load Daily to play
You can replay past puzzles, but future puzzles are locked

Scoring

Your score is based on how fast you complete the puzzle:

Larger boards give higher score multipliers
Minimum score is 100 points
Submit your score with your name after solving

Leaderboard

Global — Top scores across all players and board sizes
Daily — Scores for the selected date

Only the top result is shown by default — click Show more to view all entries.

What is Kakuro?

Kakuro is a logic puzzle where you fill in numbers so that each group of cells adds up to a specific sum, without repeating digits. It combines elements of math and logic similar to Sudoku.

Is Kakuro harder than Sudoku?

Kakuro can be more challenging because it requires both logical deduction and number combinations. Instead of placing numbers freely, you must match exact sums.

What numbers can I use in Kakuro?

You can only use digits from 1 to 9, and each number can only appear once in each run (group of connected cells).

Are there different difficulty levels?

Yes. Larger grids and more complex sums increase the difficulty. Daily puzzles may also vary in challenge.

What’s the difference between Classic and Daily?

Classic generates a new puzzle every time.
Daily gives everyone the same puzzle for the selected date.
Every day, a brand-new Kakuro puzzle becomes available in Daily Mode.
You can play today’s puzzle or any previous date — but future dates are locked.
Daily puzzles are the same for all players on the same date, so you can compare your score and time on the Daily Leaderboard.

About Kakuro

Kakuro is a classic number puzzle that blends logic and arithmetic. Often compared to a crossword puzzle, each clue gives a target sum, and your task is to figure out which combination of digits fits — without repeating numbers.

Unlike Sudoku, Kakuro requires you to think in terms of number combinations. For example, a clue of 16 across two cells can only be filled with specific pairs like 7 and 9 or 8 and 8 — but since duplicates are not allowed, only valid unique combinations are accepted.

This makes Kakuro a great brain exercise, improving both logical thinking and mental math skills.

On this page, you can:

Play classic Kakuro puzzles in different sizes
Try the daily challenge with the same puzzle as other players
Track your best times on the leaderboard
Use hints and validation tools to improve your solving skills

Whether you are a beginner or an experienced puzzle solver, Kakuro offers a rewarding and engaging challenge every time you play.

Explore More Logic Games

Looking for more brain challenges? Try our other free online logic games:

Tents and Trees– Place tents next to trees while matching row and column clues. Tents cannot touch each other.
Numberlink Puzzle– Connect matching numbers without crossings.
Slitherlink– Draw one continuous loop using logic clues.
2048 – Slide tiles across the board and combine matching numbers to reach the 2048 tile in this classic puzzle game.
Double Match – Match identical numbers or pairs that add up to 10 to clear the board. A relaxing logic puzzle with streak bonuses and daily challenges.

All games are free, work on desktop and mobile, and require no sign-up.

Browse all our puzzle and logic games in the

Logic Games category