Dutch Flat Mates (X-Sums)
(Eingestellt am 6. März 2024, 11:30 Uhr von Flinty)
Normal Sudoku rules apply.
5's live in Dutch Flats
All 5's 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.
Examples provided below on an empty grid.
X-Sums
Clues outside the grid are the sum of the first X cells in the corresponding row/column, where X is the digit in the cell nearest to the clue.
To play this puzzle please click here: Play CTC
Previous puzzles in the Dutch Flat Mates series:
- Classic
- Thermometers
- German Whispers
- Region Sum Lines
- Sandwich Sums
- Little Killer
- Kropki
- Zipper Lines
- Renban - By GoodCity
- Nabner - By GoodCity
- Skyscrapers - By GoodCity
- Dutch Whispers
- Killer Cages
- Arrows
- Ten Lines
- 159 and Even - By GoodCity
- Friendly Cells
- Quads
- Silent Killer - By GoodCity
- XV and Equality
Lösungscode: Digits from Row 4.
Kommentare
am 8. März 2024, 12:23 Uhr von Flinty
Thank you all for the kind comments :) I did toy with the idea of a Dutch flag above the grid as a rule reminder - haha - the downside was the colours looked 'off' in some browsers.
am 7. März 2024, 17:27 Uhr von abihummel
This is exactly the kind of puzzle I like - the constraints work their magic on the logic across the entire solve, right down to the final disambiguation. Lovely!
am 7. März 2024, 06:28 Uhr von mthunter26
Really nice puzzle! Just wanted to say that, despite having read @Hajuhn's comment beforehand, I too got stuck midway through the puzzle before remembering the dutch flats condition haha...
am 7. März 2024, 00:29 Uhr von Hajuhn
Really great puzzle, got stuck part way through before i remembered it was also dutch flat mates and not just x-sums haha
am 6. März 2024, 13:16 Uhr von Fra314
So cool, this Flat Mates series is really good!
am 6. März 2024, 13:09 Uhr von Ragna
Very elegant! :-)
