8 books • 4 series
Ava Sharpe Presents - Sudoku Puzzle Book (Adult Puzzle Book, #1)
Adult Puzzle Book Sudoku - 200+ Very Hard Sudoku Challenge (Puzzle for Adult, #1)
Flight and Play Sudoku 200+ Very Hard Puzzle (Challenging Puzzle, #1)
Sudoku Most Scary (Challenging Puzzle, #1)
Ava Sharpe Presents (Challenging Puzzle, #1)
Hot Head Sudoku (Challenging Puzzle, #1)
There's Only One Truth - 200+ Very Hard Sudoku (Challenging Puzzle, #1)
200 Challenging Puzzles Very Hard Sudoku (Puzzle Game to Kill Time, #1)