Bathroom Sudoku
9 primary works
Book 3
Book 5
Famous Frog Sudoku 1,200 Puzzles. 300 Easy, 300 Medium, 300 Hard & 300 Very Hard
by Dan Croker
Book 6
Book 10
Famous Frog Sudoku 600 Puzzles With Solutions. 300 Easy and 300 Medium
by Dan Croker
Book 14
Book 15
Book 16
Book 17
Famous Frog Sudoku 1,000 Puzzles With Solutions. 500 Easy and 500 Medium
by Dan Croker
Book 21