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About KakuroZen

Calm through numbers. Sharp through practice.

Our mission

KakuroZen exists to make Kakuro puzzles easy to find, easy to start, and impossible to put down. We believe number puzzles are one of the best ways to keep your mind active. They cost nothing, require no equipment, and work for people of all ages.

We publish puzzle books on Amazon, maintain a free puzzle app for iPhone and Android, and share free printable puzzles on this website every week. Whether you are a first-time solver or a daily expert, we have something for you.

Why Kakuro?

Most people know Sudoku. Fewer people know Kakuro, and that is a shame. Kakuro combines the logic of Sudoku with the arithmetic of a number crossword. It trains your brain in ways that pure logic puzzles cannot. You practice mental math, working memory, and pattern recognition all at once.

There is also something meditative about it. When you are deep in a Kakuro grid, the rest of the world fades away. That focused calm is what “Zen” in our name stands for. Not as a philosophy, but as a feeling. The feeling you get when your mind is fully engaged in something simple and satisfying.

About Anvil Road LLC

KakuroZen is a product of Anvil Road LLC. We build apps, publish books, and create digital products for niche audiences. Our focus is on quality over quantity. Every puzzle in our books is computer-generated and human-verified to make sure it has exactly one solution and the right difficulty rating.

We are a small team that cares about clean design, accessible products, and honest business practices. No dark patterns. No misleading ads. No pay-to-win mechanics. Just good puzzles at a fair price (or free).

Contact

Have a question, found a bug in the app, or want to suggest a feature? Reach out to us through the app's feedback form or email us at the address listed in the app settings. We read every message.

Ready to solve your first Kakuro?

Download the free app or grab a puzzle book and start today.

Get the App