- Sudoku Book + 2500: Vol 1 - The Biggest, Largest, Fattest, Thickest Sudoku Book on Earth for adults and kids with Solutions - Easy, Medium, Hard, Tons of Challenge for your Brain!
- Sudoku Book + 2500: Vol 2 - The Biggest, Largest, Fattest, Thickest Sudoku Book on Earth for adults and kids with Solutions - Easy, Medium, Hard, Tons of Challenge for your Brain!
- Sudoku Book + 2500: Vol 6 - The Biggest, Largest, Fattest, Thickest Sudoku Book on Earth for adults and kids with Solutions - Easy, Medium, Hard, Tons of Challenge for your Brain!
- Sudoku Book + 2500: Vol 5 - The Biggest, Largest, Fattest, Thickest Sudoku Book on Earth for adults and kids with Solutions - Easy, Medium, Hard, Tons of Challenge for your Brain!
- Sudoku Book + 2500: Vol 3 - The Biggest, Largest, Fattest, Thickest Sudoku Book on Earth for adults and kids with Solutions - Easy, Medium