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

“Easy & Simple SUDOKU (Large letters — clear & easy) 2”
contains 48 sudoku puzzles.

“ Just Right! Sudoku (a bit hard) 3”
contains 105 sudoku puzzles mainly medium difficulty.

“with Crossword 5”
contains 60 crossword puzzles that use Japanese.
We want you to play with words.

“Have a Ball with Pencil Puzzles–Kakuro for Expert 3”
contains over 90 Kakuro puzzles for experts.

“Have a Ball with Pencil Puzzles–Slitherlink for Expert 3”
contains over 90 Slitherlink puzzles for experts.

“Puzzle Communication Nikoli Vol.182”
Nikoli is the most advanced pencil puzzle magazine in Japan. The first issue was published in August, 1980.

“Nikoli Puzzle Book Reprint Edition Kakuro 1”
The puzzles in this volume are all the puzzles of “Pencil Puzzle Book Kakuro Vol.10”. This volume contains 92 puzzles.

“Nikoli Puzzle Book Reprint Edition Slitherlink 1”
The puzzles in this volume are all the puzzles of “Pencil Puzzle Book Slitherlink Vol.10”. This volume contains 96 puzzles.

“Nikoli Puzzle Book Reprint Edition Suiri Puzzle 1 (Logic Puzzles 1)”
The puzzles in this volume are all the puzzles of “Pencil Puzzle Book Suiri Puzzle Vol.8”. This volume contains 56 puzzles.