Most Popular Books
- Killer Sudoku For Beginners - Introductory Instruction Guide: Killer Sudoku puzzle book introduce beginners to killer Sudoku. With full instruction ... 500 puzzles with three levels for practice.
- Sudoku for Kids ages 6-10: 160 puzzles, four different grids sizes and two levels of challenge that progressively help beginners to master full 9x9 ... logic and critical thinking skills.
