2 ms·
This isn't exactly a sudoku board, because they allow for 0.
by toast0 2y ago
This isn't exactly a sudoku board, because they allow for 0.
- Jtsummers 2y agoWhile it's not a true sudoku board, that invariant still holds. Whichever set of digits you end up using (it'll be the same 9 for rows, columns, and blocks) the sum will be same for all of them. It's also unique to the set of 9 numbers you end up using to solve the puzzle. If you use 1-9, sum is 45. For anything else, it's 45 - (the unused number).
- foota 2y agoYep, I'm aware, hence the given digits part. The whole board is still drawn from 9 digits, it's just that precisely which 9 digits is unknown.