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What's New

"Puzzle Communication Nikoli Vol.168" and "Smooth & Easy Sudoku" are now on sale.

nikoli is the most advanced pencil puzzle magazine in Japan. The first issue was published in August, 1980.
"Smooth & Easy Sudoku" contains 75 sudoku puzzles.
All our magazines and books are available at the "Purchase Nikoli Books" page.

Japanese Puzzle Party

Saturday, October 5, 3:00 pm to 4:30 pm
If you like Sudoku, you'll love Shikaku, the new puzzle that spices up numerical logic challenges by including the concept of area. Your goal? To divide the grid into rectangular regions so that each region contains only one number, and that number is exactly the area of the region in which it sits. Join Yoshi Anpuku, creator of Shikaku, for an afternoon of Japanese logic puzzles. Plus, as an added bonus, meet and chat with Maki Kaji, founder of Japanese logic puzzle company Nikoli Co., Ltd. and godfather of Sudoku. Learn more and register at logicpuzzles.momath.org.

The Story of Shikaku

Thursday, October 10, 6:30 pm
Meet Yoshi Anpuku, inventor of Shikaku, and hear the story of how this engaging new puzzle was born. After learning about its history, join an audience solving session, starting with easy puzzles and quickly advancing. Plus, hear from Maki Kaji, founder of Japanese logic puzzle company Nikoli Co., Ltd. and godfather of Sudoku, about how he helped turn a logic-based, combinatorial, number-placement puzzle into a worldwide phenomenon. Learn more and register at shikaku.momath.org.

SmartNikoli for iOS!

We has released our puzzle app "SmartNikoli" for iOS.
You can enjoy Akari and Sudoku puzzles!
Please download our app on App Store!

SmartNikoli for Android!

We has released our puzzle app "SmartNikoli" for Android.
You can enjoy Akari and Sudoku puzzles!
Please download our app on Google Play Store!
* We will release "SmartNikoli" for iOS at a later date.

Let's Begin Nikoli Puzzles!

A lot of people enjoy solving puzzles every day to escape the pressures of the world. With Nikoli logic puzzles you need just paper, pencil, and an active mind, no expensive programs or training......

>>Let's Begin Nikoli Puzzles!

What is Nikoli?

The first puzzle magazine in Japan was published in August, 1980, this magazine was "Nikoli." So, yes, we are the pioneers in this field in Japan. Nikoli is now the company "NIKOLI Co., Ltd."

Since that first magazine, we have been publishing puzzle magazines and books and supplying original puzzles to other publications (newspapers, weekly and monthly magazines). We are constantly studying and inventing new puzzles and have created over 200 kinds of original puzzles.

We confidently assure you that among Japanese puzzle solvers, Nikoli stands for fantastic puzzles.

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