5 books • 3 series
Medium Samurai Sudoku 100 Puzzles Vol.3 (Sudoku Books Large Print, #1)
Medium Samurai Sudoku 100 Puzzles Vol.4 (Giant Book of Sudoku, #1)
Medium Samurai Sudoku 100 Puzzles Vol.5
Medium Samurai Sudoku 100 Puzzles Vol.2
Medium Samurai Sudoku 100 Puzzles Vol.1 (Sudoku Medium Puzzle Books, #1)