“Masterpiece selection of “Slitherlink for the very best” Vol.1”
This book contains over 100 challenging Slitherlink puzzles carefully selected from previous editions.

“Masterpiece selection of “Kakuro for the very best” Vol.1”
This book contains over 100 challenging kakuro puzzles carefully selected from previous editions.

“Sudoku Communication Vol.50”
This is a biannual Sudoku magazine with over 100 puzzles ranging from easy to hard. It also has a few puzzles other than Sudoku and articles related to Sudoku.

“Sudoku & Logic Puzzles for Home Vol.11”
“Sudoku & Logic Puzzles for Home Vol.11” contains about 80 puzzles, mainly Sudoku and Logic Puzzle.

“Puzzle the Giants Vol.39”
This is the 2026 edition of the annual book of giant-size puzzles. This issue contains over 30 types of puzzles, about 100 in total. Please note that some of the puzzles are in Japanese.