7 books • 4 series
Sudokus de Tots Els Nivells
Sudokus de Tous Niveaux
Sudokus de Todos Los Niveles
X-Killer Jigsaw Sudoku (X Killer Jigsaw Sudoku, #2)
Kendoku 6x6 Normal (Christmas Edition, #2)
Let's solve it! Mathdoku 5x5 Puzzle Book (Mathdoku Puzzles, #1)
Let's solve it! Easy SUDOKU for Beginners (Sudoku Puzzles, #1)