This is the sixth installment of the Fortnightly Topic Challenges Rerun described here and the forty-seventh installment of the FTCs overall, with topics suggested and voted on here. This fortnight's topic is "Wacky Sudokus" (suggested by Beastly Gerbil) and will span from the 10th of January to the 23rd of January. During this period, we will compile the list of relevant questions 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 Topic Challenges.

The suggestion is copied to this post for posterity.

Wacky Sudokus

In case you can't tell, weird variants are a personal favourite of mine. They have both been very enjoyable to make, but also rewarding in seeing the feedback and interest received.

I know a lot of people on this site are fans of the youtube channel Cracking the Cryptic, where many such wacky sudokus have been seen before

Wacky sudokus are sudokus that use rules or concepts that have yet to be seen before, or are very uncommon. They can pretty much involve anything, as long as it is not a normal sudoku.

Here are some examples of such wacky sudokus:

I think this would be a fun topic to see what the community can come up with!


1 Answer 1


List of all questions published as part of the Fortnightly Topic Challenge #47:

The highest-voted three of these are:

The most viewed three of these are:

  • $\begingroup$ @BeastlyGerbil I think you have to write one question per line so that the bot can parse this answer automatically to extract the most most viewed and highest-voted questions at the end of the fortnight. Actually I'm not so sure this is done automatically, but if it is you'll have to respect the given format. $\endgroup$
    – melfnt
    Commented Jan 14, 2021 at 17:42
  • 4
    $\begingroup$ @melfnt I've asked Lukas Rotter about it, and he said it should still work like this! I'm only entering it like this so the answer isn't take up solely by my puzzles :) $\endgroup$ Commented Jan 14, 2021 at 17:49
  • 2
    $\begingroup$ @BeastlyGerbil ok then, I'll leave these comments in case someone else wonders $\endgroup$
    – melfnt
    Commented Jan 14, 2021 at 17:56

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