It's just like standard sudoku, but with diagonals! Each row, column, nonet, and diagonal must include exactly one copy of each number 1 through 9. This version has a special puzzle for each day, too! If you're new to the genre, consider trying normal sudoku on our website first.
About Daily Diagonal Sudoku
This variation of Sudoku has a special new rule: both diagonals have to have each digit once, just like columns and rows! Come back every day for a fresh and free new Diagonal Sudoku puzzle. Play today for free!