On-Core Sudoku

Challenge you brain! On-Core Sudoku: consists of a nine-by-nine grid with 9 inner squares. To solve Sudoku each inner square must have one of the numbers between 1 and 9. Each row and column must contain each number once. It features error checking, annotations (pencil marking), undo move(s) and more. On-Core Sudoku features: - Games are generated randomly so you will never play the same game t…