112 books • 18 series
Famous Frog Sudoku 1,200 Puzzles With Solutions. 300 Easy, 300 Medium, 300 Hard & 300 Very Hard
Famous Frog Sudoku 800 Very Hard Puzzles With Solutions (Sharper Pencil, #19) (Bathroom Sudoku, #16)
Famous Frog Sudoku 800 Medium Puzzles With Solutions (Sharper Pencil, #17) (Famous Frog Medium, #5) (Bathroom Sudoku, #14)
Famous Frog Sudoku 800 Hard Puzzles With Solutions (Bathroom Sudoku, #15) (Sharper Pencil, #18)
Famous Frog Sudoku 200 Very Hard Puzzles With Solutions (Travel Sudoku, #4) (Bathroom Sudoku Pocket, #4)
Famous Frog Sudoku 200 Hard Puzzles With Solutions (Travel Sudoku, #3) (Take a Break, #19)
Famous Frog Sudoku 200 Easy Puzzles With Solutions (Travel Sudoku, #1) (Bathroom Sudoku Pocket, #1)
Famous Frog Sudoku 1,000 Easy Puzzles With Solutions (Take a Break, #5) (Beach Bum Sudoku, #8)
Famous Frog Sudoku 200 Medium Puzzles With Solutions (Travel Sudoku, #2) (Take a Break, #18) (Bathroom Sudoku Pocket, #2)
Famous Frog Sudoku 1,000 Very Hard Puzzles With Solutions (Beach Bum Sudoku Series 2, #16)