Dutch Flat Mates: Beyond 159
(Published yesterday, 07:00 by goodcity)
If you are interested in the Dutch Flat Mates series created by Flinty, you can find the others here.
Special Thanks to Flinty
What a ride it’s been, mate! Three years of Dutch Flat Mates, with a new puzzle every week. It’s been an absolute pleasure being part of this adventure and testing all those puzzles along the way. One great chapter comes to a close, but there are surely more adventures to come, mate!
Normal sudoku rules apply.
- 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.
- Beyond 159 : A digit in a red cell in column X indicates the position of the digit X in the corresponding row. All possible red cells are given.
The puzzle is available online via CTC-App
Hint to start
Start by combining the negative constraint with the fact that indexing works in both directions.
Solution code: Row 9
Last changed on -
Solved by SeveNateNine, OJPS, da-hans, Flinty, Piatato, thomamas, marcmees, palpot, jcgodart, flaemmchen, raaaaa, schnitzl, NEWS, iamissam, tigran, Dinassaur, kangaroo, mathpesto, WhiteWarat, loulouleboss, olliwright, Omnicole, jordanza, sedici, mccuskp, Sotehr, flutchman, LARSPARIS, cowabunghole, welgen, Julianl, zlotnleo, sandmoppe, SKORP17, Qodec, gdc, teuthida, AN_not_IO
Comments
yesterday, 17:57 by LARSPARIS
I think there is more than 1 solotion???
yesterday, 09:26 by Piatato
Super smooth, thanks!
Last changed yesterday, 09:19
yesterday, 09:19 by Flinty
Very nice! Definitely one of those constraints where you go: "eh?" ... "ohhhhhhh!". It has been a pleasure. x
yesterday, 09:00 by da-hans
Nice puzzle. Easier than I expected when I read the rules
