New publication image

What's New

"Sudoku Communication Vol.27," "Marugoto Puzzle Heyawake (New Puzzles)" and "Marugoto Puzzle Hashiwokakero (Re-issued)" are now on sale.

"Sudoku Communication Vol.27" contains 115 sudoku puzzles.
"Heyawake (New Puzzles)" contains 112 Heyawake puzzles.
"Hashiwokakero (Re-issued)" contains 84 Hashiwokakero puzzles.
All our magazines and books are available at the "Purchase Nikoli Books" page.

"Nikoli Sudoku" for Amazon Fire TV now available

18 Jul 2014, Amazon Fire TV app "Nikoli Sudoku" is now on sale at Developed by Tetris Online, Inc. Challenge your mind with a relaxing game of Sudoku, today!

"Sudoku by Nikoli" for iOS updated.

We have updated "Sudoku by Nikoli," Sudoku applicationfor iPhone, iPod Touch, and iPad. It works well on iOS 7 now. Please try it out!

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.