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KenKen Generator (Calcudoku)

Generate a KenKen / Calcudoku puzzle with arithmetic cages and a guaranteed unique solution, 4×4 to 6×6.

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KenKen Generator (Calcudoku) is free to use as often as you like, directly from this page. Its place is under Games & puzzles; 24 Game Solver and Baby Eye Color Predictor answer the questions closest to this one.

How to use it

  1. Open the tool — no signup or install needed.
  2. Enter your input or adjust the available options.
  3. Get your result instantly, then copy or download it.

Frequently asked questions

What is KenKen Generator (Calcudoku)?

Generate a KenKen / Calcudoku puzzle with arithmetic cages and a guaranteed unique solution, 4×4 to 6×6.

When would I actually use this?

Making something to print: a puzzle for a classroom, a grid for a rainy afternoon, or a set of rounds for a quiz night.

What is the most common mistake?

Printing before checking the solution. A grid is generated fresh each time, so the answer key belongs to that exact grid and to no other — reloading the page gives a different puzzle.

Is there a tool for the next step?

Baby Eye Color Predictor is the closest one after this: Punnett odds for your baby's eye colour from both parents — and the grandparents, which reveal hidden recessives.

What else is worth having open alongside it?

Baby Name Generator and Christmas Tree Calculator — they come up in the same task often enough to be worth a second tab.

Where do the figures come from?

Puzzles are generated and, where it applies, verified to have exactly one solution before being shown. Word lists are written per language, so no grid depends on translating an English one.

Further reading

All guides →
How-toHow to Make a Word Search That Is Actually Fun to SolveGrid size, word count, direction mix and filler letters all decide whether a word search is a two-minute chore or a satisfying puzzle. Here are the working ratios.How-toHow to Keep the Same Mouse Sensitivity Across GamesEvery game uses a different sensitivity scale. Convert with the yaw ratio, verify with centimetres per 360 degrees, and keep the muscle memory you spent months building.GuideSudoku Rules and the Techniques That Actually Solve GridsOne rule, then five techniques in the order you should reach for them — from scanning to naked pairs and X-Wing. Plus the numbers behind the puzzle.GuideA Numerology Chart Shows Seven Numbers and Four InputsLife path, expression, soul urge, personality, birthday, maturity, personal year. Everything comes from a day, a month, a year and a name — and two of the seven are arithmetic restatements of the others, which is worth knowing before reading them as seven separate findings.ExplainerHow Big Will This Puppy Get? The Size Class DecidesThe same 12.7 kg puppy at sixteen weeks predicts a 21.9 kg adult if it is a small breed and 38.5 kg if it is a giant one. The arithmetic is trivial; the class you pick is worth seventy-six per cent.How-ton + 1 Litter Boxes, and What the Litter Actually CostsTwo cats need three boxes, not two, and each should be one and a half body lengths long — 69 cm for an average adult. The litter figure that follows is larger than most people expect, and knowing why is the useful part.