Lounging by the pool is a great way to spend some leisure time, and great sudoku puzzles make it even better. Whether they're on a beach towel or lounge chair, solvers will delight in this latest collection of satisfying sudoku stumpers, created by top puzzle lifeguard (and best-selling author), Frank Longo. | Poolside Sudoku by Frank Longo, Spiral Bound | Indigo Chapters