Most Popular Books
- Sudoku medium book 1
- sudoku samurai hard book 2: 100 devilishly difficult Sudoku puzzles with answers for thinking people
- Sudoku Hard Samurai book 3: 100 devilishly difficult Sudoko puzzles with answers for thinking people
- 100 Sudoku samurai muy dificil libro 2: Endiabladamente difícil para personas pensantes (Mind bending puzzles)
- 1000 Sudoku easy to insane: 100 very easy 100 easy 100 medium 200 hard 200 difficult 300 insane
