Sunshine and Baseball Sudoku Game Day Puzzle Book Volume 4: 400 Challenging Puzzles

Sunshine and Baseball Sudoku is an addicting and fun matching game that will test your ability to problem solve, despite its simple design. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid which contains all of the digits from 1 to 9. Sounds simple? It's not!