“ChoGekikara (Really really hard) Sudoku 14” contains 91 sudoku puzzles.

“Nikoli Puzzle Book Reprint Edition Suiri Puzzle 2 (Logic Puzzles 2)”
The puzzles in this volume are all the puzzles of “Pencil Puzzle Book Suiri Puzzle Vol.9”. This volume contains 55 puzzles.

“Puzzle Booklet “Spot the differences””
This volume contains 34 puzzles to find the difference between two pictures.

“Puzzle Booklet “SHIKAKU””
This volume contains 35 “SHIKAKU” puzzles.

“The Pencil Puzzles 2024”
The Pencil Puzzles 20xx series are the renewal versions of our best sellers “Penpa 20xx” series. The book contains about 260 number puzzles, includes English explanation.

“Have a Ball with Pencil Puzzles – Kakuro 3”
This book contains 90 kakuro puzzles ranging from easy to hard.

“Have a Ball with Pencil Puzzles – Slitherlink 3”
contains 89 slitherlink puzzles ranging from easy to hard.

“Puzzle Communication Nikoli Vol.184”
Nikoli is the most advanced pencil puzzle magazine in Japan. The first issue was published in August, 1980.

“Nikoli Puzzle Book Reprint Edition Sudoku 1”
The puzzles in this volume are all the puzzles of “Pencil Puzzle Book Sudoku Vol.22”. This volume contains 100 puzzles.

“Slitherlink for Beginners”
This book is an introduction to Slitherlink.
Slitherlink is a puzzle created in “Puzzle Communication Nikoli”.
By solving very easy problems, you will learn how to solve Slitherlink.