Logic meets Heart

Sharpen your pencil,
calm your soul.

The only heart-shaped Kakuro puzzle book in the world. 100 original puzzles, one beautiful shape, zero guessing.

Order on Amazon → Try a Free Puzzle

Puzzles you'll love — that only logic can finish.

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
  • ✓ Thick paper, no bleed-through
  • ✓ Free companion site — play online anytime

Not all puzzles feel the same.

Kakuro is where a crossword meets a Sudoku, same easy-to-learn grid, sharp logic teeth.

🧠

Cognitive Boost

Tests and strengthens accurate arithmetic skills, logic, and working memory.

😌

Relaxation

A meditative focus that quiets the noise. No screens, no notifications. Just you, some good light, and the numbers.

🎉

Genuine Fun

100 unique puzzles that never repeat and can all be uniquely solved. Each one a small, satisfying win.

Sound familiar?

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.

3

Use logic — never guess

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

For anyone who enjoys Sudoku or crosswords, a fresh challenge.

Try a puzzle online → Digit calculator

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 →

♥ The heart shape isn't just for show — it's the puzzle book you can actually give on Valentine's Day, an anniversary, or to the person who has everything except a decent puzzle.

Ready to challenge your mind?

Grab the physical puzzle book, support the whole project, or start playing the interactive digital version right now.

📦

Paperback Book

100 puzzles, all solutions included. Thick paper built for pencils.

Order on Amazon
💛

Support the project

Pay What You Wish

Support the author directly. No account, no minimum, genuine appreciation.

Support the Project
🧩

Play Free Online

Try a full puzzle in your browser — nothing to install, nothing to sign up for.

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

Questions

What difficulty are the puzzles? +

The book runs from gentle to genuinely challenging, ordered so you can warm up before the deep water. If you finish everything and want more pain, the companion site's difficulty settings go further.

Do I need to be good at math? +

No. Every clue is a small sum of digits 1–9, and every puzzle is solvable by logic alone — no guessing, no arithmetic beyond adding a handful of single digits.

Can I try before I buy? +

Yes — play a full puzzle online for free, no account or download required.

Join the Community

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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://amzn.to/44rkdW5
Pay What You Wish: kakurokokoro.com/support

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 © 2026

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://amzn.to/44rkdW5
Pay What You Wish: kakurokokoro.com/support

QR code

kakurokokoro.com




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