Elevation, Don't Go to My Head
(Eingestellt am 24. Mai 2026, 15:30 Uhr von mathpesto)
Rules:
Normal sudoku rules apply.
Nurikabe: Each cell is either water or land. A group of orthogonally connected land cells form an island, and digits may not repeat within an island. Water cells form one orthogonally connected region, and no 2x2 area may be entirely water. A digit’s value in a land cell is the digit itself and a digit’s value in a water cell is the digit’s opposite. For example, a “3” in a land cell is 3 and in a water cell is –3.
Killer: Digits cannot repeat in a cage and the values sum to the given clue.
Skyscraper: Values of cells represent the elevation above/below sea level. Clues outside the grid equal the amount of numbers seen in that row/column from that vantage point. For example, suppose a row contains the values –3, 2, –8, 5, 4, 7, -6, –1, –9. Then 4 values are seen from the left (–3, 2, 5, 7) and 3 values are seen from the right (–9, –1, 7).
Solve online:
Lösungscode: Digits in water cells in Column 8 (top to bottom)
Kommentare
Gestern, 23:17 Uhr von Christounet
Phew, that took some time! I kept overlooking options and of course it was often the good ones...
Anyway, a great fun. Thanks :)
am 6. Juli 2026, 04:01 Uhr von icter
Great journey from south to north
am 7. Juni 2026, 12:13 Uhr von DaniK
Fantastic puzzle! it was quite hard but very satisfying from beginning to end.
am 31. Mai 2026, 06:51 Uhr von Norkas
Hearing -3 being called the "opposite of 3" in the rules got me just a tiny bit annoyed, like 0 is the "opposite" of 0 now, is it? But anyway the puzzle is exellent. One of my favorite skyscraper puzzles ever.
am 28. Mai 2026, 03:04 Uhr von Crusader175
Very nice!
am 27. Mai 2026, 06:43 Uhr von damo_89
Very nice puzzle, but who would have thought skyscrapers with negators would be so mind bending!
am 26. Mai 2026, 19:36 Uhr von madhupt
Wonderful puzzle! Refused to give up till the very end but finally gave in after a brilliant bit of logic in the end. The water/island logic really interacted well and maintained the flow.. Thanks a lot for sharing this.
am 26. Mai 2026, 16:26 Uhr von Snookerfan
Brilliant puzzle! I was in doubt rating this puzzle 3 or 4 stars. On one side most of the puzzle was really smooth, on the other side it required some careful thinking of all the possibilities. Also there was a moment where I almost got stuck and that segment was 4 stars at least for sure. Anyway a fabulous puzzle. Thanks
