Nikoli publishes numerous magazines and pencil puzzle books.

Publication schedule

  • Jan 15, 2019:"Puzzle the Giants Vol.32" and "Glorious Sudoku (a bit hard) 12"
  • Feb 10, 2019:"Sudoku Communication Vol.36"
  • Mar 10, 2019:"Puzzle Communication Nikoli Vol.166," "Pencil Puzzle Collection Kakuro 2" and "Pencil Puzzle Collection Slitherlink 2"

Japanese Number Puzzles by Nikoli

Japanese Number Puzzles by Nikoli

This is a universal puzzle book that contains nearly 100 puzzles!
Our explanations are provided in English with newcomers in mind to help facilitate a smooth introduction to Nikoli-style puzzles.

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>>> Special Numbers page

Puzzle Communication Nikoli

Puzzle Communication Nikoli

The most advanced pencil puzzle magazine in Japan. The first issue was published in August, 1980. It is a quarterly magazine and Vol. 165 was issued in December, 2018. Each issue contains over 30 kinds of puzzles, including some Japanese word puzzles.

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Sudoku books

The world-wide famous "Sudoku" puzzle was named by Nikoli company president Maki Kaji.

Cho-Gekikara (Really, really hard) Sudoku 4
Nankan (Hard) Sudoku 4
>>> Sudoku Books page

Kind & Friendly Puzzle Book Series

Kind & Friendly Sudoku Kind & Friendly Kakuro Kind & Friendly Slitherlink

The first volumes in this series came out in Apr, 2017. With the "Kind & Friendly" series, you can enjoy Sudoku, Kakuro, and Slitherlink. The titles in this series show the kind of puzzle in the volume, and a volume has about 100 puzzles ranging from easy to hard.

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Fresh Series

Fresh sudoku  Fresh kakuro  Fresh slitherlink  Fresh shikaku

The first volumes in this series came out in Oct, 2011. "Fresh" is a new series independent of the "Pencil Puzzle Book" series. With the "Fresh" series, you can play (or do and enjoy) the four popular puzzles, Sudoku, Kakuro, Slitherlink, and Shikaku. The titles in this series show the kind of puzzle in the volume, and each volume has about 100 puzzles ranging from easy to hard.

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Pencil Puzzle Collection

Pencil Puzzle Collection Series

The first volume in this series, "Kakuro 1" and "Slitherlink 1"came out in Jan, 2017.
The series is in a handy pocket sized format, 105 mm wide and 178 mm high (4 1/8 x 7 in).
>>> Alphabetical list of published books

Pencil Puzzle Book Series

Pencil Puzzle Book Series  Pencil Puzzle Book Series

The first volume in this series, "Kakuro 1," came out in Sep, 1986. The titles in this series show the kind of puzzle in the volume, and a volume has about 100 puzzles ranging from easy to hard.
This series continues to grow and with reprints the total number of volumes sold exceeds 2 million copies. The series is in a handy pocket sized format, 105 mm wide and 178 mm high (4 1/8 x 7 in).
>>> Alphabetical list of published books

Marugoto Puzzle Book Series

Marugoto Puzzle Book Series 

The first volume in this series, "Marugoto Puzzle Fillomino" and "Marugoto Puzzle Ripple Effect(Re-issued)" came out in Feb, 2017.
>>> Alphabetical list of Marugoto Puzzle Book Series

Puzzle The Giants

Puzzle the Giants

The first issue of this annual magazine came out in 1992, and Vol. 30 was issued in January, 2018.
It contains over 25 kinds of puzzles, including a few word puzzles in Japanese. All the puzzles are large sized and it will easily take a year to solve them all.

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>>> Special Numbers page

Puzzle The Giants Best Selection

Puzzle the Giants Best Selection

Each book contains over 100 big size puzzles, selected among puzzles in "Puzzle the Giants" series.

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>>> Special Numbers page

Penpa 20xx by Nikoli

Penpa 2019 by Nikoli

"Penpa 20xx" series are the renewal versions of our best sellers "Penpa Mix" series. The book contains about 300 number puzzles, includes English explanation.

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>>> Special Numbers page

Puzzle Box

Puzzle Box

The first volume was in 2000, and Vol. 13 was issued in May, 2018.
It contains 60 kinds or more of puzzles, including some word puzzles in Japanese.

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Special Numbers

There are a great variety of magazines published by NIKOLI Co., Ltd. Please visit "Purchase Nikoli Books" page and get them!

>>> Special Numbers page