Making a difference
(Published on 15. April 2023, 17:49 by hAndyman)
Rules:
- Normal Sudoku rules apply
- Digits separated by a dot have a difference that is based on the value of the number in center of that marked 3x3 region (ie if the box had a 2 in its central square, all dots in that box would indicate a difference of 2...)
- No digit can appear in the same position in more than one 3x3 box ('Disjoint groups' rule)
- One of the marked regions is a magic square (where each row, column and diagonal within that box sum to the same value)
Solution code: bottom 2 rows of completed sudoku (18 digits)
Comments
on 11. December 2023, 20:12 by PinkNickels
What a clever idea and excellent execution. thank you for sharing with us
on 15. October 2023, 23:07 by anyeyeball
I'm late to the game on a very nice puzzle. The magic square was pretty easy to spot and definitely helped me. This was great fun! Thanks.
on 27. April 2023, 10:06 by VitP
The magic square may not be needed to solve the puzzle (I can't say), but it certainly is needed to make the puzzle easy.
on 17. April 2023, 13:25 by Jlrice2
I didnt need to use the majic square in order to solve the puzzle. Just noticed it after the fact.
on 17. April 2023, 09:38 by hAndyman
@BellBear, a 'marked region' is one of the 3x3 boxes with a thick black outline.
on 17. April 2023, 01:04 by Jlrice2
I didnt need to use the majic square in order to solve the puzzle. Just noticed it after the fact.
on 16. April 2023, 23:58 by BellBear
What is the marked region?
on 16. April 2023, 19:53 by sacklunch
Very fun, very approachable. Thank you for setting and sharing!
on 16. April 2023, 10:11 by TomMalufe
I found the "disjoint groups" rule to be very powerful and made the puzzle almost easy for me. I was a bit surprised since I usually struggle with even 2 star puzzles. Maybe 3 stars is a bit much? I guess it helped that I know how magic squares work in sudoku already.
Still, I really enjoyed it. Thanks for the puzzle!
on 15. April 2023, 19:26 by hAndyman
added tags for clarification
