Dutch Flat Mates: Liars and Killers (palpot collab)
(Published on 13. May 2026, 07:00 by Flinty)
Previous Dutch Flat Mate Puzzles
This has been a weekly series since '18 Oct 23'. Here is a spreadsheet link for all the previous puzzles in the series, which also has a few teasers for upcoming constraints/guest setters in the series (subject to change).
This alternative link offers a limited LMD search for Dutch Flat Mates.
Special Thanks
The inspiration for this puzzle is Liars and Killers by Jay Dyer.
Thank you to palpot, for collaborating on the setting of this puzzle.
To play the puzzle, please click the image:
Puzzle Link: Click Here
Initial Setter Difficulty: 2.5 / 5
Normal Sudoku rules apply
Place the digits 1-9 so that they do not repeat in any row, column, or 3x3 box.
Dutch Flats
Every 5 in the grid must have a '1' directly above it or a '9' directly below it. It may have both, but it doesn't need both.
Liars and Killers
Not all killer clues are accurate, but the digits in a cage must sum to AT LEAST the clue in the top left corner. Digits may not repeat within a cage.
Hint to start
Can a happy 5 exist in either 14 clue? It's also worth remembering that 5 in Row 1 only has one Flat Mate option.
Solution code: Row 9 digits.
Comments
on 13. May 2026, 18:55 by Franjo
Thank you very much for creating and sharing another lovely DFM-puzzle.
on 13. May 2026, 15:32 by sujoyku
Lovely stuff! Thank you, Flinty and Palpot!
on 13. May 2026, 11:21 by Snookerfan
Fun puzzle, especially for beginners. Thanks
on 13. May 2026, 11:08 by Dr Logic
At most 5/5 for difficulty. With either a 1* above or a 9* below
on 13. May 2026, 08:31 by damo_89
At least 1/5 for difficulty.
