Books by Editors of Nikoli Publishing

The Original Sudoku

by Editors of Nikoli Publishing

Prepare to be obsessed.

Match wits with the experts who created Sudoku. Arranged from “Easy” to “Very Hard,” here are over 300 logic puzzles that celebrate the compulsive joy of Sudoku with symmetry, smartness, and elegance—qualities lacking in computer-generated puzzles. It’s fiendish fun…every puzzle is designed by an author who anticipates your next step and obscurest the path, while never leading you into frustration.

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More Original Sudoku

by Editors of Nikoli Publishing

Over twenty years ago Nikoli, the Japanese puzzle and game company, started publishing a curious logic puzzle called Sudoku. The rest of the world recently joined the Sudoku craze by using computer programs to create puzzles, but Nikoli is the only company that still crafts their puzzles the old-fashioned way: by hand. As Ad Age wrote in a profile, the Nikoli credo is “The Best Puzzles Are Made by Happy Employees.” And for solvers, it really does make a difference—there’s an elegance and symmetry to the puzzles, plus a sense of interaction. The puzzle-maker knows just when to encourage, and when to withhold. Puzzles marked “Easy,” are easy because the puzzler leads you through. Those marked “Very Hard” are exactly that—they pit your mind against the mind of the master, who seems to share the joy of that moment when one hard-won number is captured, and the entire puzzle tumbles into place.

An obsessive’s collection, More Original Sudoku features over 300 puzzles, all in a chunky, easy-to-carry format (it even fits into a standard jeans-size back pocket). An introduction shows how to solve the puzzles at various levels of difficulty, and it includes a tutorial on how to create your own hand-made Sudoku.

Here’s wishing you Gokouun o inorimasu! (Good luck!)

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X-Treme Sudoku

by Editors of Nikoli Publishing

The next step, like having a whole book of just Saturday Times crossword puzzles. Even more fiendish, even more fun, X-treme Sudoku proudly presents 320 puzzles rated "Difficult" to "Very Difficult." These are the toughest, knottiest, most demanding Sudoku out there—prepare to have your brain cells crackle, your pencils melt, your mind obsessed with numbers and squares.

No one is better than Nikoli at rounding up such a collection. A Japanese puzzle and game company that started the Sudoku craze over twenty years ago, Nikoli is known for creating the only handcrafted puzzles around. As Tim Preston, publishing director of Puzzler Media, Britain's biggest seller of crossword and cryptogram puzzles, has said: "It is a matter of great pride to get your puzzle into one of Nikoli's magazines. Handmade puzzles are much better. . . . It gives you the satisfaction that you are pitting your wits against an individual who has thought about what your next step would be and has tried to obscure the path."

For X-treme Sudoku, the puzzle-makers at Nikoli went out of their way to obscure the path. There are puzzles with entire boxes empty. Puzzles with whole rows left blank. Puzzles that form mysteriously beautiful symmetries, but demand a calculating logic to solve.

For the X-treme solver, paradise.

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The Original Sudoku Book 2

by Editors of Nikoli Publishing

“The Best Puzzles Are Made by Happy Employees.” So Ad Age describes the credo of Nikoli, the Japanese puzzle company that invented the Sudoku craze and supplies 100% of the puzzles published in Japanese newspapers and magazines. And when they say “made,” they mean literally handmade—unlike the computer-generated puzzles found in other American Sudoku products.

And that’s one of the features that makes THE ORIGINAL SUDOKU BOOK 2— and THE ORIGINAL SUDOKU, published between seasons and already with 115,000 copies in print—unique. The books celebrate the compulsive joy of Sudoku with symmetry, smartness, and elegance. They invite you to match wits with the experts, to step into the 81-cell arena with a puzzle maker who has fiendishly anticipated your next step. Fun without frustration.

Other features? More all-new puzzles—over 300, arranged from “Easy” to “Very Hard.” The same chunky, easy-to-tote format, because once addicted you will be toting it around everywhere. An informative introduction that shows you how to approach and solve the puzzles. Plus an entirely new idea—an unprecedented tutorial on how to create your very own handmade Sudoku puzzles.

The obsession continues.

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Original Sudoku Page-A-Day® Calendar 2026: 365 Puzzles from the Editors at Nikoli

by Editors of Nikoli Publishing, Workman Calendars

THE BEST SUDOKU: Every puzzle in this calendar is created by Nikoli, the best Sudoku makers in the world—not a computer—to balance toughness and solvability and keep you hooked. TRAIN YOUR BRAIN: The week begins with the easiest puzzles and the difficulty increases day by day. Just in case you need them, solutions are printed on the back of the pages. NOW PLASTIC-FREE!: Page-A-Day® Calendars are environmentally friendly! Printed on responsibly sourced paper and 100% recyclable, with sturdy cardboard backers.

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Original Sudoku Page-A-Day® Calendar 2027: 365 Puzzles from the Experts at Nikoli

by Editors of Nikoli Publishing, Workman Calendars

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