Asterisk Sudoku there is an additional area, shown on the grid by shading nine specially selected cells. Those nine cells must also contain 1 to 9.
Diagonal Asterisk Sudoku Additional Rules
Diagonal Sudoku Rule: Sudoku main diagonals also contain the digits 1 through 9.
Asterisk Sudoku there is an additional area, shown on the grid by shading nine specially selected cells. Those nine cells must also contain 1 to 9.
Diagonal Asterisk Sudoku = Diagonal Sudoku + Asterisk Sudoku