How many symbols are used in the Roman numeral system? How many numbers are employed in Sudoku? Is #1 greater than or equal to #2?
Sudoku
Sudoku boxes can be filled with one of 9 numbers. There are only seven Roman numerals: I, V, X, L, C, D and M
Logic-based number-placement puzzle
Can Roman numerals fill the normal number of Sudoku box options?