2,208 books • 130 series
Sudoku Big Book Suguru - 500 Easy to Master Puzzles 9x9 (Volume 8) (Big Book Suguru, #8)
Consecutive Sudoku - 200 Easy to Normal Puzzles 9x9 (Volume 27) (Consecutive Sudoku, #27)
Consecutive Sudoku - 200 Hard to Master Puzzles 9x9 (Volume 28) (Consecutive Sudoku, #28)
Sudoku Small Calcudoku - 200 Hard to Master Puzzles 7x7 (Volume 42) (Small Calcudoku, #42)