Publishers Puzzle COOP Books

Cover for Puzzle Coop Books · A Kid's Steps to Sudoku! the Kid's Sudoku Puzzle Book (Paperback Book) (2016)

A Kid's Steps to Sudoku! the Kid... (2016)

Puzzle Coop Books

Cover for Puzzle Coop · The Collection of Very Hard Book of Sudoku Puzzles (Paperback Book) (2016)

The Collection of Very Hard Book... (2016)

Cover for Puzzle Coop · A Formidable Opponent (Paperback Book) (2016)

A Formidable Opponent (2016)

Cover for Puzzle Coop · A Sudoku Lovers Book of Very Hard Challenges (Paperback Book) (2016)

A Sudoku Lovers Book of Very Har... (2016)

Cover for Puzzle Coop · Level 2 (Paperback Book) (2016)

Cover for Puzzle Coop · Mastering Sudoku (Paperback Book) (2016)

Mastering Sudoku (2016)

Cover for Puzzle Coop · No Need for an Eraser (Paperback Book) (2016)

No Need for an Eraser (2016)