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Nikoli Publishing

About the Author

Nikoli is the Japanese puzzle and game company that’s been nurturing and developing sudoku for over thirty-five years. They hold the trademark on sudoku in Japan, and supply 100 percent of the puzzles published in Japanese newspapers and magazines.

Original Sudoku Page-A-Day® Calendar 2025

Original Sudoku Page-A-Day® Calendar 2025

by Nikoli Publishing, by Workman Calendars

The Biggest, Bestest Book of Sudoku

The Biggest, Bestest Book of Sudoku

by Nikoli Publishing

Original Sudoku Page-A-Day Calendar 2024

Original Sudoku Page-A-Day Calendar 2024

by Workman Calendars, by Nikoli Publishing

Genius-Level Sudoku

Genius-Level Sudoku

by Nikoli Publishing

PictoMazes

PictoMazes

by Nikoli Publishing, by Kazuyuki Yuzawa

Expert Sudoku

Expert Sudoku

by Nikoli Publishing