This is the eighteenth installment of the Fortnightly Topic Challenge described here, with topics suggested and voted on here. This fortnight's topic is (suggested by Emrakul), and will span from the 17th of October to the 30th of October. During this period, we will compile the list of questions with this tag and post it as an answer to this question.

In the meantime, please go and propose and vote on future challenges!

Everyone have fun, and happy puzzling!

Link to other Fortnightly Topics.

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    $\begingroup$ We should start using these challenges as a time to improve the tag wiki for the highlighted topic. For example, mechanical-puzzles currently seems to suggest it only includes things like Rubik's cubes and sliding puzzles. I'm not familiar enough with the tag, but looking through the questions with the tag suggest some other types can also fit in. $\endgroup$ – David Starkey Oct 20 '16 at 17:48
  • $\begingroup$ Wikipedia defines mechanical puzzles as all all puzzles involving the manipulation of physical objects, assembling, disassembling, untangling, trick objects, where you need to find how to reach a specific goal. en.wikipedia.org/wiki/Mechanical_puzzle $\endgroup$ – Florian F Oct 22 '16 at 9:01

List of all questions published as part of the Fortnightly Topic Challenge #18:

The highest-voted of these is A weird deleted Puzzling.SE question by Lukas Rotter, with a score of 40 at the end of the fortnight.

The most viewed is either Puzzle similar to 15-puzzle but more moveable pieces? by errantlinguist or A weird deleted Puzzling.SE question by Lukas Rotter, both with approximately 940 views during the fortnight.

  • $\begingroup$ Congrats, Lukas! :-) $\endgroup$ – Rand al'Thor Oct 31 '16 at 10:33

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