There is a tag and another tag . Probably every question tagged as a hat problem is one that is solved using logical reasoning, and can be tagged as a logical puzzle also.

Is the common practice just to use both tags?

(Another example: here on meta, and are similar to each other)

  • $\begingroup$ Voting to close as a duplicate of Should [hat-problem] be its own tag, instead of a synonym? since this issue was re-raised and resolved there, and nowadays it's perfectly fine and common to have sub-tags. $\endgroup$ Commented Apr 25, 2020 at 10:07
  • $\begingroup$ @Randal'Thor I agree, don't have vote to close privilege though $\endgroup$ Commented Apr 25, 2020 at 10:09
  • $\begingroup$ You do have the vote-to-close privilege (it's 3k rep). More importantly, as the OP of this question you have the right to insta-close it as duplicate by simply accepting it as such on the banner that you should now see at the top of your question. $\endgroup$ Commented Apr 25, 2020 at 10:10
  • $\begingroup$ @Randal'Thor Got it , option wasn't there on app $\endgroup$ Commented Apr 25, 2020 at 10:11

1 Answer 1


I've gone ahead and made a synonym of (as well as => on meta).


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