Series:

Sudoku

5 primary works

Book 1

Cover of Sudoku 160 Hard Puzzles + Solutions Edition One

Book 2

Cover of Sudoku 160 Hard Puzzles + Solutions Edition Two

Book 3

Cover of Sudoku 80 Hard Puzzles 120 Insane Puzzles + Solutions Edition Three

Book 4

Cover of Sudoku 240 Insane Puzzles + Solutions Edition Four

Book 5

Cover of Sudoku 240 Insane Puzzles + Solutions Edition Five