“Puzzle Booklet “Tentsunagi (Dot to Dot)””
This volume contains 32 puzzles where you connect the dots to create a picture.

“Puzzle the Giants Vol.36”
This is a yearly book of giant-size puzzles. This year’s issue contains over 30 kinds of puzzles. Please note that some puzzles must be solved in Japanese.

“Sudoku & Logic Puzzles for Home Vol.5”
“Sudoku & Logic Puzzles for Home Vol.5” contains about 100 puzzles, mainly Sudoku and Logic Puzzle.

The iPhone App “Sudoku — Official Nikoli” is now available.

200 Nikoli Sudoku puzzles (20 beginner, 60 easy, 60 medium, and 60 hard) are available.

Of these, up to 130 questions (20 beginner, 60 easy, 40 medium, and 10 hard) can be solved for free.
The remaining 70 questions (20 medium and 50 hard) are charged. You will be able to solve them by paying in the app.

The Android version is not yet released.
If you have an iPhone, please download it!

# iPhone App “Sudoku — Official Nikoli”
https://apps.apple.com/us/app/sudoku-official-nikoli/id6444442602

*The app is provided by Crisp Co.,Ltd.
Please contact Crisp Co.,Ltd. with any inquiries, including inquiries regarding problems.

“Puzzle Communication Nikoli Vol.181”
Nikoli is the most advanced pencil puzzle magazine in Japan. The first issue was published in August, 1980.

“ChoGekikara (Really really hard) Sudoku 12”
“Cho-Gekikara (Really, really hard) Sudoku” contains 91 sudoku puzzles.

“Nankan(Hard)Sudoku 12”
“Nankan (Hard) Sudoku” contains 105 sudoku puzzles.