Logic meets Heart

Sharpen your mind,
calm your soul.

The only heart-shaped Kakuro puzzle book in the world.

Every puzzle is a heart — not just on the cover, but the grid itself. Each solve is a small, satisfying piece of art. The number puzzles you will love — but only logic can complete.

"100 Random Puzzles of Kakuro Kokoro" — the puzzle book that makes a perfect gift.

Order on Amazon → Try Free Online
📬 Get free puzzles by email Pay What You Wish · Print a puzzle

Perfect for puzzle lovers, Sudoku fans, crossword solvers, gift-givers, and anyone craving a genuinely fresh mental challenge.

Kakuro Kokoro puzzle book front cover Kakuro Kokoro puzzle book back cover
✓ The only heart-shaped Kakuro in the world ✓ 100 original puzzles ✓ All solutions included at the back ✓ Thick paper — ink & pencil friendly ✓ Free companion site: play online, print puzzles, digit calculator

Sound familiar?

Tired of puzzles that all feel the same?

Kakuro Kokoro brings arithmetic and heart to a timeless format. A unique grid, one logical solution, and the genuine satisfaction of finishing something beautiful.

🧠

Cognitive Boost

Strengthens logic, arithmetic, and working memory with every puzzle.

😌

Relaxation

A meditative focus that quiets the noise — no screen, no notifications.

🎉

Genuine Fun

100 unique puzzles that never repeat. Each one a small, satisfying win.

How to Solve a Kakuro Kokoro

Simple rules. One unique solution. Pure deduction.

Kakuro Kokoro puzzle example
1

Read the clues

Numbers at the top of columns and left of rows tell you what the cells in that run must sum to.

2

Fill in digits 1–9

Enter digits 1 through 9. No digit may repeat within any single run — like Sudoku's no-repeat rule, crossed with the clue structure of a crossword, but with arithmetic.

3

Use logic — never guess

Every puzzle has exactly one solution reachable by deduction. No luck required — just a sharp mind.

If you enjoy Sudoku or crosswords and want a fresh challenge, this is it.

Try a puzzle free → Digit calculator

Why do we do puzzles and math problems?

More than just numbers — a holistic approach to cognitive health and a calmer daily life.

Quicken your arithmetic

Effortless practice with reward — numbers become second nature without a textbook in sight.

Test your brain health

Solve puzzles daily at different times — compare how well you focus under different circumstances.

Spend time productively

Enjoy the absence of persuasive messaging for as long as you choose. Pure screen-free focus.

Logic & deduction skills

Get around thinking traps. Strengthen the same reasoning used in real-world problem solving.

Perfect Valentine's gift

Heart-shaped puzzles make a one-of-a-kind gift — for Valentine's Day, birthdays, or anyone you love.

For all skill levels

Many clues are provided to keep puzzles accessible. Harder variants (fewer clues) available on request.

What puzzle lovers are saying

Verified Amazon reviews

★★★★★

"These are the most satisfying puzzles I've come across. The heart shape makes every solve feel like a small piece of art."

— Verified Amazon buyer

★★★★★

"I've done Sudoku for years. This is the next level — real arithmetic is involved and it's genuinely challenging without being frustrating."

— Verified Amazon buyer

★★★★★

"Bought this for my partner for Valentine's Day. We both ended up competing to finish them first. Perfect gift."

— Verified Amazon buyer

Read all reviews on Amazon →

Ready to challenge your mind?

Grab the physical puzzle book, support the author directly, or start playing the interactive digital version today.

📦

Paperback Book

100 puzzles, all solutions included, brief instructions.

Order on Amazon
💛

Pay What You Wish

Support the author directly. An amount you choose will be genuinely appreciated.

Pay What You Wish
🧩

Play Free Online

Try a full Kakuro Kokoro puzzle in your browser — no account, no download.

Play Now
QR code — kakurokokoro.com

kakurokokoro.com

Amazon's standard 30-day return policy applies Try the puzzle free online before you buy Pay What You Wish option — no minimum

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Kakuro Kokoro

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Kakuro Kokoro

www.kakurokokoro.com

The number puzzles you will love!
But only logic can complete...
"100 Random Puzzles of Kakuro Kokoro"
Fun number puzzles in a heart shape.

Order: https://a.co/d/88Y82x6
Pay What You Wish: https://techbio.org/money

Kakuro Kokoro puzzle example

How to solve Kakuro Kokoros

Enter numbers from 1–9 so that they sum up to the clues
at the tops of columns and left of rows.
Numbers cannot be repeated in a row or a column.

QR code

kakurokokoro.com

Authored by Curtis W. Moore © 2024

Solution

Kakuro Kokoro puzzle solution

What is Kakuro?

A puzzle game for focus — also known as "cross-sums",
like a combination of crosswords and Sudoku.

What is Kokoro?

The Japanese word for "heart".
These Kakuro puzzles are heart-shaped.

"100 Random Puzzles of Kakuro Kokoro"
Fun number puzzles in a heart shape.

Order: https://a.co/d/88Y82x6
Pay What You Wish: https://techbio.org/money

QR code

kakurokokoro.com