Roman Numeral Sudoku
(Published on 7. August 2020, 15:50 by SenatorGronk)
Rules
- Standard sudoku rules apply
- Numbers to the left and right of the grid equal the total number of "I"s found in the Roman numeral representation of the first N digits in its corresponding row, where N is the first digit in that row on the side nearest the clue.
- Numbers above and below the grid equal the total number of "V"s found in the Roman numeral representation of the first N digits in its corresponding column, where N is the first digit in that column nearest the clue.
Penpa+:
link
I've provided the first 9 Roman numerals as a solving aid.
Solution code: Row 4 and Column 7 (18 digits, no spaces or separators)
Last changed on on 17. November 2020, 21:39
Solved by samuella, NikolaZ, zorant, CyberMonkey
Comments
on 17. November 2020, 21:34 by SenatorGronk
New version: same solution, but one clue has been replaced
Last changed on 7. August 2020, 19:43on 7. August 2020, 19:11 by SenatorGronk
The version I first posted had a step that I realized was too convoluted, but I was able to tweak one clue which changed two pairs of numbers in the final grid.
The deduction at that point is still a little tricky, but much easier to grok once you see it.