Lighthousedle
Puzzle #21 was Thridrangaviti Lighthouse.
Þrídrangaviti Lighthouse is an active lighthouse 7.2 kilometres off the southwest coast of Iceland, in the archipelago of Vestmannaeyjar. It is often described as one of the most isolated lighthouses in the world. Þrídrangar means "three rock pillars", referring to the three named sea stacks at that location: Stóridrangur, Þúfudrangur, and Klofadrangur. The lighthouse was commissioned on 5 July 1942.
What the record says
Puzzle 21 ran on 30 Jul 2026 and the answer was Thridrangaviti Lighthouse, played with 6 guesses against 8 columns. On the record: Country - Iceland; Continent - Europe; Height - <10m; Material - concrete; Heritage - unlisted. The numbers: Focal height - 34 m; Range - 9 nmi. 1 of the 8 columns is blank in the source (Built), so nobody could score it either way.
Lighthousedle builds its record from Wikidata - CC0 1.0. The description above comes from the same place the game credits on every reveal: English Wikipedia summary excerpt, CC BY-SA 4.0. The puzzle itself is still playable in the archive, and every answer that has been and gone is listed on the past-answers page.
How it scored
- Country
- Iceland
- Continent
- Europe
- Built
- Not recorded
- Height
- <10m
- Material
- concrete
- Heritage
- unlisted
- Focal height
- 34 m
- Range
- 9 nmi