Daily Sudoku X

Daily Sudoku game with an additional rule for the diagonals. Every day new sudoku games with the following rules: each row, column, 3x3 box and diagonal contains the numbers 1 to 9 only once.
Youtube: https://www.youtube.com/watch?v=HA-V1OXlcP8

from HTMLGames.com https://ift.tt/2YT7wUP