How would you enter


spelled backwards into the comment box below and press the "Add comment" button (nothing will happen, as there's only 11 letters) using at most 10 clicks in total?

You should end up with something like this:

enter image description here


  1. You may only use a mouse - Right-click, left-click and cursor movement.

  2. You may only stay on this page - Imagine this page locked into your screen. No new tabs, new windows, minimizing the current window, etc.

  3. No userscripts or extensions - Just your standard browser on standard settings.

Note: This is a PC puzzle, so it might not work for phones.


I failed to mention that you must assume this as a fresh puzzle, meaning you cannot incorporate later comments, answers, etc. into your solution.

  • 13
    $\begingroup$ Let me ruin the puzzle with this comment: Blockbuster ... $\endgroup$
    – WhatsUp
    May 20, 2021 at 16:37
  • 2
    $\begingroup$ I failed to mention that you must assume this as a fresh puzzle, meaning you cannot incorporate later comments, answers, etc. into your solution. $\endgroup$ May 20, 2021 at 17:46
  • 2
    $\begingroup$ @riskymysteries But now it turns into...well, a kind of self-referential paradox. Since your edit is a later addition to the original puzzle, that means I cannot use it (i.e. I should ignore it) in my solution. $\endgroup$
    – trolley813
    May 20, 2021 at 20:09
  • 1
    $\begingroup$ @trolley813 Haha :D Well, I guess you could say "no copying from the edit" at least. $\endgroup$ May 20, 2021 at 20:45
  • 6
    $\begingroup$ @PrinceNorthLæraðr Post your answer under 10 clicks then? $\endgroup$
    – JeffC
    May 21, 2021 at 5:25

5 Answers 5


Solved in 10 moves including "Add a comment" and "Add Comment" buttons at the start and end

(1) click on "Add a comment"
(2) click the "Blockquotes" option in a new answer (Blockquotes will be highlighted)
enter image description here
(3) press on the "flag" button (this will unhighlight Blockquotes without an extra click)
(4) highlight bus
enter image description here
(5) drag into comment box
(6) highlight ter
enter image description here
(7) drag into comment box after bus
(8) highlight Block
enter image description here
(9) drag into comment box before buster
(10) press the "Add comment" button (nothing will happen, as there's only 11 letters)

I was muddling around in the "inspect element" for way too long trying to find something I could use in the html.


This is hugely inspired by @rhavelka's answer, so make sure to upvote him/her as well!

Just found an alternative of where the phrases can come from:

1. Click the Add a comment link
2. Click the Markdown Editing Help button (the question-mark icon) in the Your Answer rich text area
3. Click the Lists help tab
4. Highlight 'Block' from the Blockquotes help tab header
5. Drag it into the comment box we've opened in step 1
6. Highlight 'bu' in the word 'bulleted' or 'bullet'
7. Drag it into the comment box behind the 'Block'
8. Highlight 'ster' in the word 'asterisk'
9. Drag it into the comment box behind the 'Blockbu'
10. Click the Add comment button ("nothing will happen, as there's only 11 letters")

Here a gif of these steps:
enter image description here

  • 3
    $\begingroup$ +1 definitely a cleaner solution that doesn't risk the Flag popup covering the comment box. $\endgroup$
    – rhavelka
    May 20, 2021 at 20:50
  • $\begingroup$ Hm, in my browser, when I highlight the "Block" in "Blockquotes", it automatically clicks that tab, so I am no longer in the "Lists" tab. $\endgroup$
    – justhalf
    May 23, 2021 at 9:01
  • $\begingroup$ @justhalf What browser do you use? I personally use Chrome. And you have to start the selection just outside of the box (between the second 's' of Lists and 'B' of Blockquotes) so the cursor is still an arrow instead of hand, as you can see in the attached gif. It indeed switches to the Blockquotes tab if I start on top of the 'B' with the selection. $\endgroup$ May 23, 2021 at 10:15
  • 1
    $\begingroup$ Ah, starting outside the box works! $\endgroup$
    – justhalf
    May 23, 2021 at 19:40

Phew finally got it in 9 I believe. Took a while to find, with help from other posters (see their post for better explanation of some shared steps)

1 Click add a comment to open the comment box
2 Press help icon on the 'New Post' box already open lower on page
3 Highlight 'Block' at start of 'Blockquotes' tab header of help
4 Drag 'Block' to original comment box
5 Highlight 'user' in 'No userscripts' of original post OR highlight 'User' which is found on the left side of every page
6 Drag 'user/User' to end of comment box
7 Right click left half of 'Blockuser'
8 Click 'Blockbuster' from the spelling context menu (verified both IE and Chrome with no extensions)
9 Click 'Add comment'

  • 1
    $\begingroup$ No spelling context menu on my browser. That's probably an extension. $\endgroup$
    – WhatsUp
    May 20, 2021 at 21:40
  • $\begingroup$ Also verified in Firefox, no extensions. What browser do you have, @WhatsUp ? $\endgroup$
    – IronEagle
    May 21, 2021 at 1:56
  • $\begingroup$ @IronEagle I use Firefox but my operating system is not English. Not sure whether the spelling context menu comes from the browser or from the operating system. $\endgroup$
    – WhatsUp
    May 21, 2021 at 10:23
  • 1
    $\begingroup$ My browsers are both out of the box on brand new PCs. Yes OS language is English; if SE help text is localized the 'accepted' answer might not work on other OS either. If not then I guess it is "better"? $\endgroup$
    – Amoz
    May 21, 2021 at 15:58
  • $\begingroup$ @Amoz The thing is, it makes sense for browser features to correspond to the OS, but PSE is constructed in English. It would take perhaps an Add-on or userscript to translate the PSE help text. $\endgroup$ May 21, 2021 at 19:40

A cheaty one, solved in 6 moves.

1. Right click on retsubkcolB.

2. Click on "Inspect"

3. Right click on the element that retsubkcolB is on right now.

4. Click "Delete"

5. Scroll to the comment box. (this counts as a click because, you can do it on your right.)

6. Just click on the comment box, because retsubkcolB is missing.


This is solved in five mouse clicks:

1. Right-click on the word "Blockbuster".
2. Left-click on "Copy".
3. Right-click on the comment box.
4. Left-click on "Paste".
5. Press the "Add comment" button (nothing will happen, as there's only 11 letters)

Edit: Added the final step that I missed.

  • 3
    $\begingroup$ I imagine the puzzle assumes that the word "Blockbuster" hasn't yet appeared on the page. $\endgroup$
    – SQLnoob
    May 20, 2021 at 16:40
  • 1
    $\begingroup$ Yeah that works in 9 steps with drag and drop if you drag "B", "lock", "ust", and "er" found in body text $\endgroup$
    – Amoz
    May 20, 2021 at 16:47
  • 1
    $\begingroup$ I guess it's B lock bu and ster, found those, think that's spelled right now $\endgroup$
    – Amoz
    May 20, 2021 at 16:49
  • 1
    $\begingroup$ @Amoz You should post your own answer, I think. $\endgroup$
    – WhatsUp
    May 20, 2021 at 16:51
  • 1
    $\begingroup$ I agree ster isn't selectable. Probably some way to grab all the text between "B" and "browser" and cut out the irrelevant parts, because Blockbuster is clearly embedded in there. Not seeing it offhand, cutting is taking me too many clicks $\endgroup$
    – Amoz
    May 20, 2021 at 17:06

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.