Irregular XV*Magic
(Published on 21. February 2025, 08:00 by NurglesGift)
Every Row, Column and Region must contain the digits 1-9.
Cells connected by an X must sum to 10.
Cells connected by an V must sum to 5.
All X's and V's are given.
There is a 3x3 magic square somewhere in the grid.
(A magic square is a 3x3 square with the digits 1-9 where all rows, columns and diagonals have the same sum)
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Feel free to recommend this puzzle to anyone.
Feel free to take special rules for your own puzzle.
Feel free to give feedback.
Bless you!
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Solution code: give the digits of column 6 (top to bottom)
Comments
on 9. April 2025, 10:17 by TheNineElements
Solve Time: 24:17
I rated this 2/5 difficulty.
Another great addition to the series! This puzzle was definitely on the easier/side of the puzzles in the series, and seems fairly rated at 2* difficulty.
I really enjoyed having a more approachable/quicker solve, and I felt like the coloring logic was very nice & satisfying. I was able to progress consistently (and quickly) just working my way outward from where I began coloring, expanding a large "chunk" of fully colored cells until I fully colored the grid. This made the solve more relaxing, and I didn't need to spend a lot of time bouncing around the entire grid and could just expand my existing coloring.
The magic square logic, as aleays, was very nice and a fun way to disambiguate everything. Thanks for sharing!
on 24. February 2025, 15:51 by NurglesGift
maybe the rule could be more specific, as in the digits 1-9 (each one time)
maybe I'm wrong, but I thought if it have 2 of the same digit its no longer a "true" magic square :)
on 24. February 2025, 08:50 by Dermerlin
@NurglesGift : I know that logic about Magic Squares. But are you sure this is 100% correct in irregular sudokus? As there could be double digits in a 3x3 square, maybe there are other Magic Squasres possible???
on 23. February 2025, 19:50 by madhupt
This is a beautiful puzzle. Very, very enjoyable.
on 23. February 2025, 07:23 by NurglesGift
Thank you everyone!
(Magic Square Spoiler)
Well you can find many places that explain Magic squares. but to make it simple. 5 must always be in the middle, the 4 corners must always be even. from that the puzzle will give you a 2-4 pair and a 9 in the middle of them.
on 23. February 2025, 02:30 by DreamLibrarian
Lovely!
on 22. February 2025, 14:10 by samuelsamjo
i had the entire grid colored. but got stuck with the magic square logic :(
on 22. February 2025, 12:04 by giladooshlon
It is so satisfying (and such a rarity) to solve a non-trivial sudoku without a single pencil mark. From fully colored straight to digits!
on 21. February 2025, 21:42 by adrianoh99
Extraordinary puzzle
on 21. February 2025, 19:45 by AnebodaSlatorp
Thank you so much I’ve learned so much from doing your puzzles
on 21. February 2025, 12:03 by slowbiex
love this series. thanks so much for setting.
on 21. February 2025, 11:54 by moenupedia
Brilliant!
