Kakuro Solver That Finds the Right Digits Every Time

Tell Sider your clue sums and grid layout, or drop in a photo of the puzzle. It checks every combination, rules out digit repeats, and shows you what goes where. Free, no ads.

Solve My Kakuro Free
10M+ Active Users
4.8★ Chrome Store Rating
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Why Sider Cracks Kakuro Puzzles Other Solvers Miss

Most kakuro tools expect a perfectly formatted grid and return one rigid answer. Sider takes a photo, a plain-language description, or a list of clues – and keeps working with you until every cell is filled.

Sider Chat listing valid digit combinations for a kakuro clue sum, with repeats already eliminated

Combination Analysis for Every Clue Group

Sider doesn't guess. It works out every set of non-repeating digits that sum to your clue, then checks each candidate against the other groups that share those cells. You only see combinations that actually fit.
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User dropping a photo of a kakuro puzzle into Sider Chat and receiving valid digit combinations

Upload a Photo – No Grid Retyping

Take a picture of your kakuro grid from a newspaper, puzzle book, or screen. Drop it into Sider Chat and it reads the clue numbers off the image – no transcribing every cell by hand.
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Diagram showing Sider resolving intersecting row and column constraints in a kakuro grid

Handles Rows and Columns That Share Cells

The hardest part of kakuro is when one cell sits in both a row group and a column group. Sider factors in both constraints at once, so the digit it suggests works for the row sum and the column sum together.
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User sending follow-up corrections to Sider Chat to refine the kakuro solution step by step

Refine With Follow-Up Messages

If you already know some digits or find a cell can't hold a certain number, just say so. Sider locks in your correction and recalculates the remaining cells. One conversation gets the whole puzzle done.
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Three Steps from Stuck to Solved

Installing the Sider Chrome extension and opening Sider Chat in a browser sidebar
1

Install Sider – Free and Takes About a Minute

Add the free Sider Chrome extension. Click the toolbar icon and the chat sidebar opens right next to whatever page you're working on.

Typing kakuro clue sums into Sider Chat or uploading a kakuro puzzle photo
2

Share Your Kakuro Clues or Upload a Photo

Type the clue sums and group sizes into the chat, or drag in a photo of your puzzle. Tell Sider to find valid digit combinations – or just ask 'what numbers go here?'

Sider Chat displaying valid digit combinations for each kakuro clue group
3

Read Your Valid Digit Combinations

Sider returns combinations that satisfy the sum and the no-repeat rule. If one doesn't fit with a crossing clue, tell Sider what the issue is and it narrows the options further.

Why People Choose Sider for Kakuro Puzzles

Actually Free – No Ads Between You and the Answer

No trial period, no ads mid-puzzle. The kakuro solver is free to use.

Solve Iteratively, Not in One Shot

Most solvers give you one output and stop. Sider stays in the conversation. Tell it what you've confirmed or what doesn't fit – and it adjusts right away.

Works from a Photo, Not Just Typed Input

Drop a photo of your kakuro grid into the chat and Sider reads the clues off the image. No grid-mapping tools, no manual transcription of cell values.

Sider by the Numbers

100K+

5-Star Reviews

10M+

Active Users

50+

Countries

1 min

Setup Time

What Happened When People Brought Their Stuck Kakuro Puzzles to Sider

I had a 3-in-a-row clue that summed to 6 and kept doubting whether 1+2+3 was the only option. I asked Sider and it confirmed that was the only valid set with no repeats. One question, done.

Marcus T.

Puzzle Enthusiast

I photographed a kakuro from a Japanese puzzle magazine and dropped it into Sider Chat. It read the clue numbers right off the image and gave me the valid digit combos for each group. I didn't type a single number manually.

Yuki H.

Kakuro Fan

What I liked was being able to tell Sider when a suggestion clashed with a crossing column. It re-checked the constraints and gave me a revised set straight away. Felt like solving with someone who actually knows the rules.

Rachel S.

Logic Puzzle Solver

Kakuro Solver – Common Questions

A kakuro puzzle is a number crossword where you fill empty cells with digits 1–9 so each group of cells sums to a given clue and no digit repeats within the same group. Sider takes your clue sums and grid structure, applies the constraints, and returns valid digit combinations for each group.

Yes. Take a photo of your kakuro grid and drop it into Sider Chat. Sider reads the clue numbers from the image and figures out valid digit combinations without any manual retyping.

Yes. When rows and columns share cells, Sider factors in all intersecting constraints simultaneously to narrow down which digits can legally appear in each position.

Yes. The Sider kakuro solver is completely free to use with no ads. Just install the free Chrome extension and start solving.

Just reply in the chat with what you've figured out or what doesn't fit. Sider factors in your corrections and recalculates. It's a back-and-forth conversation, not a one-shot tool.

No. You can describe your puzzle in plain language or paste the clue numbers. Sider handles the logic – you just need to share the clue sums and the number of cells in each group.

Sider handles standard kakuro grids of any size – from small beginner puzzles to large expert-level grids. It works on newspaper kakuros, puzzle book grids, and digital puzzle images.

Still Running Through Digit Combos in Your Head? Let Sider Do It.

Install Sider free, share your kakuro clues or drop in a photo, and get the valid combinations in seconds. No puzzle theory needed.

Solve My Kakuro Free

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