Dutch Flat Mates: Hitlines
(Published on 16. April 2025, 11:00 by marty_sears)
Rules:
Normal sudoku rules apply.
The grid is covered in fog. Entering correct digits may clear fog somewhere in the grid. No guessing is necessary.
Every 5 in the grid must have a 1 directly above it or a 9 directly below it. It might have both, but it doesn't need both.
Beige lines are 'hitlines'. In this puzzle, hitlines only move orthogonally. Digits don't repeat on a hitline. The small clue on the square at the start of a hitline indicates the total of any digits along the line that equal their position number, starting at the square (which is position 1.)
Eg: If a 4-cell hitline reads 1794, then its clue would be 5 (the sum of 1 and 4) because 1 is in position 1, 4 is in position 4, and these are the only two digits which match their position number.
Please leave a comment if you enjoy :)
Click here for other puzzles in the Dutch Flat Mates seriesSolution code: Row 9 from left to right
Comments
on 5. July 2025, 21:34 by PancakePie
What a blast!
on 12. May 2025, 12:00 by QuiltyAsCharged
Wonderful puzzle!
on 12. May 2025, 01:11 by Ratfinkz
I LOVE this constraint so much!
on 20. April 2025, 17:05 by Klausku
Nice. That last line twisted my brain. Thanks.
on 20. April 2025, 11:06 by Flinty
I'm very late to leaving my comment as I've been on hollibobs. Thank you again for the wonderful contribution to series :) Now it's time to catch the Olli vod. :)
on 18. April 2025, 23:03 by jakestilesowen
Dynamic fog has the potential downside of having a boring or telegraphed solve path, but that was not the case here. Very enjoyable steps with interesting logic.
on 16. April 2025, 23:56 by Asparagus
Magnificent.
I loved the way there was always just enough information to keep going!
on 16. April 2025, 17:10 by Franjo
Another great puzzle in a great series. Exactly what I had expected, of course. Thank you very much for this lovely addition.
on 16. April 2025, 17:07 by egubachu
Very nice! I loved how the hitlines disambiguate every time, but especially the last one.
on 16. April 2025, 14:06 by mscha
Nice one!
I got the first line pretty quickly, but after that it got a bit trickier. But there was always a logical way to continue, I just had to find it.
on 16. April 2025, 13:25 by da-hans
This is a very nice addition to the series. Works well with fog. I think it would be too easy with all the lines visible. With fog I would rate it between 2 and 3 *.
on 16. April 2025, 12:07 by sujoyku
Very nice puzzle. The break-in took me a while to understand properly. But then the puzzle had a nice flow all the way. Thank you for another fabulous DFM puzzle, Marty!
