Free · No account · No download
Kakuro Free Online
Play Kakuro free online — no cost, no sign-up, no download. Open freekakuro.com in your browser and a puzzle is ready immediately. Four difficulty levels, unlimited boards, and every solving tool included at zero cost.
Kakuro is a crossword-style number puzzle: fill white cells so each run sums to its clue, with no repeated digit in any run. The puzzle is solved by logic alone — no guessing required, and every valid board has exactly one solution.
What "free" actually means here
No cost, ever
Every puzzle, every tool, every difficulty level. Free Kakuro has no paid tier, no subscription, and no ads interrupting your solve.
No download
Open the URL in any modern browser — Chrome, Firefox, Safari, Edge — and play instantly. No app store, no install, no storage used.
No account
Start playing the moment you arrive. No sign-up form, no email confirmation, no password to remember.
Unlimited puzzles
The puzzle generator creates a fresh, verified board on demand. You will never hit a paywall or run out of puzzles at any difficulty.
All tools included
Candidate overlay, hint system, auto-play, combination reference, and helper calculator — all free, all built in.
Any device
Desktop, laptop, tablet, phone — the board and number pad adapt to your screen. The same free game, everywhere.
How to start playing free Kakuro online
- 1 Open the game. Go to freekakuro.com. A medium-difficulty Kakuro puzzle loads immediately — no waiting screen, no tutorial gate.
- 2 Read the clues. Black cells with diagonal lines are clue cells. The number in the upper-right corner is the sum for the white run going right (across). The number in the lower-left corner is the sum for the white run going down.
- 3 Fill in digits. Click or tap a white cell, then enter a digit 1–9. A cell turns red if the digit violates a constraint. No digit may repeat within a single across or down run.
- 4 Use the free tools. Toggle candidate mode to track which digits are still possible per cell. Hit "Hint" to identify the next forced move. Open the combination reference to look up valid digit sets for any sum and run length.
New to the puzzle? The beginner's guide covers the core solving loop in detail, and the rules page explains the grid notation in under five minutes.
Free Kakuro at every difficulty
All four levels are free — no level-gating, no premium tiers.
Free easy Kakuro
Short runs with many forced moves from the start. Most cells resolve with a single combination lookup. The right starting point for new players. Easy Kakuro guide →
Free medium Kakuro
Longer runs and more intersecting constraints. Candidate tracking pays off here and cross-run logic starts to matter. Medium Kakuro guide →
Free hard Kakuro
Dense grids with sparse forced moves. Intersection logic and residual-sum reasoning are essential throughout. Hard Kakuro guide →
Free ultra hard Kakuro
Maximum grid density. Every constraint matters and mistakes cascade. For experienced solvers who want a serious challenge. Ultra Hard Kakuro guide →
Free solving tools
Candidate overlay: Toggle a 3×3 digit matrix inside each empty cell. Mark and unmark possibilities as you eliminate options — no paper, no pencil, no cost.
Hint system: Tap "Hint" to have the solver find the next cell with a forced move and explain why that digit must go there. Useful when you are stuck without giving away the whole solution.
Auto-play: Resolves all currently forced moves in a single step. Good for clearing obvious placements quickly so you can focus on the harder logic.
Kakuro helper calculator: Enter a target sum and run length to see every valid digit combination. Open the free helper →
Combination reference: Full static table of every sum × length pair. Faster than calculating in your head mid-solve. Open the free reference →
Technique library: Covers intersection logic, residual sums, naked pairs, and more — all free. Open free technique library →
Free Kakuro online FAQ
- Is Kakuro really free to play online?
- Yes. Free Kakuro has no subscription, no purchase, and no ads. All difficulties and all tools are included at zero cost.
- Do I need an account to play free Kakuro?
- No account, no email, no sign-up. Open the site and start playing immediately.
- Does free Kakuro work on mobile?
- Yes. The board and number pad are touch-optimised. Candidates and hints work the same on phones and tablets as on desktop.
- Are there unlimited free Kakuro puzzles?
- Yes. A new puzzle is generated each time you start a game — there is no pool to exhaust and no puzzle limit per day.
- What is Kakuro?
- Kakuro is a number-logic puzzle on a crossword-style grid. Each run of white cells must sum to a clue shown in an adjacent black cell, and no digit may repeat within a run. Every valid puzzle has exactly one solution reachable by deduction alone.
- Is free online Kakuro as good as a paid app?
- Free Kakuro includes everything you would expect from a paid app — unlimited puzzles, four difficulties, candidate notes, hints, auto-play, and a combination reference. Because it runs in a browser, there is no download and no platform restriction. See the Kakuro online overview for a full feature comparison.