In this answer by Andrew the solutions to the two Chess problems are hidden and appear only when your mouse hovers over the answer box.

What is the markdown for that? I tried to enter the answer editor to see, but it is a non-tag-wiki post on a meta site, so I couldn't.


You can make a line hidden by prepending it with >! (note the space before any additional text).


>! 1. e4 e5

1. e4 e5

  • I made this answer community wiki so that you can edit it and view the source as well. – Andrew Mod Sep 17 '13 at 5:27

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