Logic Masters Deutschland e.V.

Skyscraper Aquarium Sudoku

(Eingestellt am 23. Juni 2020, 18:01 Uhr von Sam Knott)

Standard Irregular sudoku rules apply to the 9x9 square (1-9 in each row, column, and marked region)

Aquarium rules apply: each region must be split/coloured into 'air' (green) and 'water' (blue) cells. (Some regions can be entirely one type.) All water cells must be below all air cells, and cells in the same row and region must be coloured the same. Additionally, in each region, the digits in water cells must all be larger than those in air cells.

Numbers around the outside indicate both the number of water cells in that row/column, and the number of skyscrapers you can see from that edge, if larger numbers are taller skyscrapers, blocking the view of smaller skyscrapers behind

You can play it here (Penpa): https://tinyurl.com/y8ucon6p

Lösungscode: Enter the 3rd, then 7th rows, from left to right, with no spaces.

Zuletzt geändert am 23. Juni 2020, 21:19 Uhr

Gelöst von Sam_CTC_Fan, MavericksJD, cdwg2000, KlausRG, pandiani42, Prongs, henrypijames, Jesper, Ninja94, mjg123, Mody, ch1983, bakpao, MartinR, AnnaTh, davidagg, pirx, zorant, rimodech, NikolaZ
Komplette Liste


am 2. Juli 2020, 10:03 Uhr von MartinR
Really nice puzzle, I'm a big fan of puzzles that have independent but interrelated constraints.
One minor formatting suggestion; might be worth having the outside numbers in a different colour as the two 2's looked very similar when scanning the grid

am 26. Juni 2020, 06:28 Uhr von Mody
Tolle Konstruktion

Zuletzt geändert am 25. Juni 2020, 20:24 Uhr

am 25. Juni 2020, 20:18 Uhr von mjg123
I really enjoyed this. The interplay between the rulesets with the larger numbers "sinking" into the water was great, and using the same clues for both is incredible! It was tempting in a few places to use uniqueness to make progress but I'm glad I didn't because it was a lot of fun chasing the logic around. Thank you Sam

Zuletzt geändert am 25. Juni 2020, 07:00 Uhr

am 24. Juni 2020, 14:27 Uhr von henrypijames
What?! Sudoku *and* aquarium *and* skyscraper? To quote Simon A.: "How do you come up with something like that?"

Though the two metaphors really don't mix, do they: Aquarium means the grid is a sideway view, top is high, bottom is low. Whereas skyscraper means the grid is a birds-eye view, altitude is described by the digits. Maybe you can find a better metaphor that combines the two, especially if you plan to create more puzzles of this type.

As a starting idea, the digit could represent bundles of leaves and schools of fishes respectively, with larger ones obscuring smaller ones below or behind it.

am 23. Juni 2020, 21:19 Uhr von Sam Knott
Added Penpa link

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