I'm looking to create a type of puzzle that involves the passage of time where the puzzle can only be solved a specific times / days in a year. It could use environmental surroundings like the sun/ weather/seasons/stars/etc. Or it can be linked to something "virtual" that resides on the internet. Has there been any type of puzzles that used these elements?


closed as too broad by Ian MacDonald, Rand al'Thor, puzzledPig, Rubio May 21 '18 at 17:46

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    $\begingroup$ The Moon-letters written on the Thrór's Map predicted that on Durin's Day the last light of the Sun as night fell would reveal the secret door into the Lonely Mountain. $\endgroup$ – omikes May 10 '18 at 21:12
  • $\begingroup$ Are we talking about this being done in real life? A few that come to mind - A ray of sunlight has to hit a certain spot in National Treasure, Raiders of the Lost Ark, and in an episode of Avatar the last Airbender as well as in the Hobbit reference above. $\endgroup$ – tyobrien May 12 '18 at 4:40
  • $\begingroup$ Yes something like that. $\endgroup$ – Patoshi パトシ May 12 '18 at 18:30
  • $\begingroup$ I believe the answer to your question is "yes". Is there something more that you wanted from this? $\endgroup$ – Ian MacDonald May 18 '18 at 14:55
  • $\begingroup$ Off the top of my head: You could do it by writing a website that displayed a different image each day, and have one of them be related to a puzzle that drops a breadcrumb leading to it, as well as a hint about the day you need to visit on. $\endgroup$ – Callum Bradbury May 19 '18 at 21:47

This scene from Indiana jones springs to mind. The puzzle can only be solved at a certain time of day when the light is shining through the hole and you have the special staff. Here's a link to the wiki page

This Scene from Indiana jones springs to mind


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