“Tentsunagi (Dot to Dot) Plus”
This book contains over 50 puzzles where you connect the dots in the order of the numbers to create a picture.

“Sudoku Communication Vol.49”
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.

“Nikoli’s Best Selection of Giant Puzzles: Kakuro & Slitherlink”
We have carefully selected the most engaging puzzles originally published in the Puzzle Communication Nikoli and Penpa Mix series. This volume features a total of 70 giant-size puzzles — 35 Kakuro and 35 Slitherlink.

“Sudoku & Logic Puzzles for Home Vol.10”
“Sudoku & Logic Puzzles for Home Vol.10” contains about 80 puzzles, mainly Sudoku and Logic Puzzle.

“Puzzle Communication Nikoli Vol.191”
Nikoli is the most advanced pencil puzzle magazine in Japan. The first issue was published in August, 1980.

“ChoGekikara (Really really hard) Sudoku 17”
“Cho-Gekikara (Really, really hard) Sudoku” contains 91 sudoku puzzles.

“Nankan(Hard)Sudoku 17”
“Nankan (Hard) Sudoku” contains 105 sudoku puzzles.

“Otegaru Slitherlink”
This book contains 60 Slitherlink puzzles ranging from easy to medium.
All the included puzzles are reprints from “SLITHERLINK (Large letters — clear & easy)”.

“Have a Ball with Pencil Puzzles — Crossword Puzzle 1”
This book contains over 50 crossword puzzles from easy to hard.

“Just Right! Sudoku (a bit hard) 5”
This book contains 105 Sudoku puzzles, most of which are of medium difficulty.