Twin Corresponding Diagonal Sudoku = Twin Corresponding Sudoku + Diagonal Sudoku.
Twin Corresponding Diagonal Sudoku Additional Rules
Diagonal Sudoku Rule: Sudoku main diagonals also contain the digits 1 through 9.
Twin Corresponding Diagonal Sudoku = Twin Corresponding Sudoku + Diagonal Sudoku.
Diagonal Sudoku Rule: Sudoku main diagonals also contain the digits 1 through 9.