Editing 2445: Checkbox

{{comic
| number    = 2445
| date      = April 1, 2021
| title     = Checkbox
| image     = 2445.png
| titletext = Check check check ... chhecck chhecck chhecck ... check check check
}}
{{TOC}} 
*To experience the interactivity of the game, visit the {{xkcd|2445|original comic}}.

==Explanation==
This was the 11th [[:Category:April fools' comics|April fools' comic]] released by [[Randall]]. The previous fool's comic was [[2288: Collector's Edition]], which was delayed two days and released on Friday April 3, 2020. The next became [[2601: Instructions]] released on Friday April 1, 2022 (a regular release day).

The comic looks similar to a loading screen. The actual comic (this “loading screen”) consists of an animated gif of a {{w|checkbox}} (hence the name). 

The frame is replaced with an interactive panel. In the center is a check box, which clears itself immediately when checked. In the bottom right is a mute button, which begins muted. By unmuting, and changing it to a loudspeaker, sounds are played when the check box is checked. This was the second [[:Category:Comics with audio|comic with audio]] on xkcd. The very similar April Fool's comic from the next year, [[2601: Instructions]], used audio, too. It also had only one element in the center, but not a check box, but a {{w|radio button}}.

Under the checkbox is a scrolling visual representation of the timing and duration of clicks in the check box, which also produce matching beeping sounds when unmuted. The representation consists of a dot for a short press, or a bar for a longer press. All long presses are represented by a bar of a pre-determined length; in other words, a longer press does not result in a longer bar.

By varying between brief and long presses, and brief and long intervals between presses, it is possible to enter characters in Morse Code.

The check box then begins operating by itself, producing sounds which can be decoded as Morse Code. These responses are also printed in the browser's JavaScript console in both plain text and a textual representation of Morse code. If left without any initial input for 30 seconds it would send the message CQ (meaning "Seek You").

The title text hints at the use of Morse Code in the comic; interpreting the "check" as a Morse Code dot and the "chhecck" (a long check) as a Morse Code dash gives ...---..., which is the Morse Code for "SOS", the international distress signal. Incidentally, inputting the SOS signal gives "YOU TOO?".

For the majority of inputs, the check box responds with a random selection from the following list:
* COME AGAIN
* HUH
* NOT FOLLOWING
* SAY AGAIN
* TRY THAT AGAIN
* WHAT

Some keywords, however, have [[#Special Responses´|special responses]].

===Unique header text===
This comic has a [[Header text#Unique_header_text|unique header text]], see [[Header text#Checkbox|the details here]]. The header is:
:"This comic was put together by Max Goodhart, Patrick, Amber, Benjamin Staffin, Kevin Cotrone, and Michael Leuchtenburg." 
Read Max's [https://chromakode.com/post/checkbox blog post] on development of the comic.

==Transcript==
:[A small box is in the middle of a large white frame. The box can have a check-mark, but it is alternating between being checked or unchecked. At the bottom right there is a muted speaker (which can be unmuted). If the user press the checkbox gray dots or lines will appear below depending on the length of the press. These will move from right to left and then disappear.]

==Special Responses==
[. represents a short signal, - represents a long signal, and / represents pauses between words. Sojourner is a Mars rover which has been referenced by Randall in the past and is the entity operating the morse code device.]

{| class="wikitable"
! Message & response
! Morse Code
! Explanation
|-
|XKCD -> FILE NOT FOUND
|[-..- -.- -.-. -..] -> [..-. .. .-.. . / -. --- - / ..-. --- ..- -. -..]
|
|-
|XKCD -> A CROSS THREE LETTERS
|[-..- -.- -.-. -..] -> [.- / -.-. .-. --- ... ... / - .... .-. . . / .-.. . - - . .-. ...]
|A pun on "across three letters", how clues are sometimes given in crossword puzzles. Instead, the word "xkcd" is literally a cross (x), followed by three letters (kcd).
|-
|HI -> HELLO! ANYBODY OUT THERE?
|[.... ..] -> [.... . .-.. .-.. --- -.-.-- / .- -. -.-- -... --- -.. -.-- / --- ..- - / - .... . .-. . ..--..]
|
|-
|HELLO -> HELLO TO YOU TOO!
|[.... . .-.. .-.. ---] -> [.... . .-.. .-.. --- / - --- / -.-- --- ..- / - --- --- -.-.--]
|
|-
|HELP -> ENTER IMAGE NUMBER
|[.... . .-.. .--.] -> [. -. - . .-. / .. -- .- --. . / -. ..- -- -... . .-.]
|See below; if you enter any number ≤ 2445 you will be linked to the corresponding xkcd comic.
|-
|HELP -> YES PLEASE
|[.... . .-.. .--.] -> [-.-- . ... / .--. .-.. . .- ... .]
|Sojourner mistakes the person inputting the morse code as offering help instead of asking for it.
|-
|ES -> QUE
|[. ...] -> [--.- ..- .]
|"Es" means "is" in Spanish, and "Qué" is "what".
|-
|WHAT -> ECHO
|[.-- .... .- -] -> [. -.-. .... ---]
|
|-
|ECHO -> ECHO
|[. -.-. .... ---] -> [. -.-. .... ---]
|
|-
|CHECK -> MATE
|[-.-. .... . -.-. -.-] -> [-- .- - .]
|Checkmate is the winning move in chess.
|-
|CHECKBOX -> RADIO BUTTON
|[-.-. .... . -.-. -.- -... --- -..-] -> [.-. .- -.. .. --- / -... ..- - - --- -.]
|This also works the other way around.
|-
|E (''repeat n times'') -> E (''repeat n times'')
|[.]
|This only applies for n < 7. Also, n=6 returns 'AAAAAA' instead.
|-
|T (''repeat n times'') -> T (''repeat n times'')
|[-]
|This only applies for n < 7.
|-
|E -> E ''pause'' I -> EIEIO
|[.] -> [.] ''pause'' [..] -> [. .. . .. ---]
|"E-I-E-I-O" is the refrain to the children's song {{w|Old MacDonald Had a Farm}}.
|-
|I (''repeat n times'') -> I (''repeat n times'')
|[..] -> [..] ''or'' [.. ...-] (IV) ''or'' [...-] (V)
|This only applies for n < 4. n=4 returns 'IV' and n=5 returns 'V', the Roman numerals for 4 and 5, respectively.
|-
|FLIPCOIN -> HEADS ''or'' TAILS
|[..-. .-.. .. .--. -.-. --- .. -.] -> [.... . .- -.. ...] ''or'' [- .- .. .-.. ...]
|
|-
|LOOK AROUND -> NOT ENOUGH POWER
|[.-.. --- --- -.- / .- .-. --- ..- -. -..] -> [-. --- - / . -. --- ..- --. .... / .--. --- .-- . .-.]
|Indicates that Sojourner doesn't have enough battery to swivel its camera head.
|-
|SEE -> RED SOIL
|[... . .] -> [.-. . -.. / ... --- .. .-..]
|References that Sojourner is on Mars. Mars is covered in red soil.
|-
|WHO ARE YOU ''or'' WHAT IS YOUR NAME -> SOJOURNER
|[.-- .... --- / .- .-. . / -.-- --- ..-] ''or'' [.-- .... .- - / .. ... / -.-- --- ..- .-. / -. .- -- .] -> [... --- .--- --- ..- .-. -. . .-.]
|Indicates that Sojourner is the operator of the morse code device.
|-
|SOJOURNER -> CFM
|[... --- .--- --- ..- .-. -. . .-.] -> [-.-. ..-. --]
|CFM is short for confirm. Sojourner is confirming that it's in control of the morse code device.
|-
|ET -> PHONE HOME
|[. -] -> [.--. .... --- -. . / .... --- -- .]
|This is a reference to the movie ET.
|-
|LS -> DID YOU MEAN DIR
|[.-.. ...] -> [-.. .. -.. / -.-- --- ..- / -- . .- -. / -.. .. .-.]
|These are both commands for viewing the files in a directory. LS is the traditional method in UNIX, whereas DIR is more associated with MS-DOS/Windows (although it also exists in UNIX).
|-
|DIR -> ENTER IMAGE NUMBER
|[-.. .. .-.] -> [. -. - . .-. / .. -- .- --. . / -. ..- -- -... . .-.]
|This references to the next input. DIR stands for directory.
|-
|(''any number ≤ 2445'') -> (''loads xkcd comic in new tab'')
|
|Pulls up the xkcd comic corresponding to the number entered. Only works for comics published before this one.
|-
|MAKE ME A SANDWICH -> NOT A CHANCE
|[-- .- -.- . / -- . / .- / ... .- -. -.. .-- .. -.-. ....] -> [-. --- - / .- / -.-. .... .- -. -.-. .]
|A reference to [https://www.explainxkcd.com/wiki/index.php/149:_Sandwich this comic]
|-
|SUDO MAKE ME A SANDWICH -> NOT POSSIBLE HERE
|[... ..- -.. --- / -- .- -.- . / -- . / .- / ... .- -. -.. .-- .. -.-. ....] -> [-. --- - / .--. --- ... ... .. -... .-.. . / .... . .-. .]
|Another reference to [https://www.explainxkcd.com/wiki/index.php/149:_Sandwich this comic]
|-
|I LOVE YOU -> LESS THAN THREE
|[.. / .-.. --- ...- . / -.-- --- ..-] -> [.-.. . ... ... / - .... .- -. / - .... .-. . .]
|"Less than three" represents the less than (<) symbol followed by the number three (3), which together form <3. This is commonly used to represent a heart.
|-
|<nowiki />:) -> :D
|[---... -.--.-] -> [---... -..]
|This gives a bigger version of a smile than the one entered.
|-
|<nowiki />:( -> :C
|[---... -.--.] -> [---... -.-.]
|Following the pattern from the above entry, this converts the sad face entered to a bigger frown.
|-
|<nowiki />;) -> :O
|[-.-.-. -.--.-] -> [---... ---]
|":O" is an {{w|emoticon}} depicting a surprised face.
|-
|<nowiki />:O -> :X
|[---... ---] -> [---... -..-]
|":X" is an emoticon depicting an embarrassed face.
|-
|UWU -> OWO
|[..- .-- ..-] -> [--- .-- ---]
|"{{w|uwu}}" is an emoticon depicting a cute face. "owo" is the open-eyed version of "uwu".
|-
|OWO -> UWU
|[--- .-- ---] -> [..- .-- ..-]
|See "UWU -> OWO".
|-
|POG -> YEET
|[.--. --- --.] -> [-.-- . . -]
|Pog and yeet are both common interjections used on the Internet.
|-
|UNIX -> (''Opens [https://uni.xkcd.com uni.xkcd.com]'')
|[..- -. .. -..-]
|[https://www.explainxkcd.com/wiki/index.php/UniXKCD April Fools' Day in 2010]
|-
|GET YE FLASK -> YE WISH! IF THERE WAS A FLASK IN THIS GAME, WE'D KNOW ABOUT IT.
|[--. . - / -.-- . / ..-. .-.. .- ... -.-] -> [-.-- . / .-- .. ... .... -.-.-- / .. ..-. / - .... . .-. . / .-- .- ... / .- / ..-. .-.. .- ... -.- / .. -. / - .... .. ... / --. .- -- . --..-- / .-- . .----. -.. / -.- -. --- .-- / .- -... --- ..- - / .. - .-.-.-]
|
|-
|GET YE FLASK -> YOU CANNOT GET YE FLASK
|[--. . - / -.-- . / ..-. .-.. .- ... -.-] -> [-.-- --- ..- / -.-. .- -. -. --- - / --. . - / -.-- . / ..-. .-.. .- ... -.-]
|This response, as well as the previous one, are references to a recurring joke from {{w|Homestar Runner}}.
|-
|YO -> YO
|[-.-- ---] -> [-.-- ---]
|
|-
|DROP TABLE -> HAHA NO
|[.... .- .... .- / -. ---] -> [.... .- .... .- / -. ---]
|A reference to [[327: Exploits of a Mom]].
|-
|WHY -> TO STUDY THE RED PLANET
|[.-- .... -.--] -> [- --- / ... - ..- -.. -.-- / - .... . / .-. . -.. / .--. .-.. .- -. . -]
|Refers to Sojourners' misson on Mars.
|-
|EAT -> I PHOTOSYNTHESIZE
|[. .- -] -> [.. / .--. .... --- - --- ... -.-- -. - .... . ... .. --.. .]
|Sojourner is a rover, and therefore does not require food. For that matter, Sojourner also does not photosynthesize. It does, however, generate energy from light in a superficially similar manner using its solar panels.
|-
|BATTLE ''or'' FIGHT -> THROW
|[-... .- - - .-.. .] ''or'' [..-. .. --. .... -] -> [- .... .-. --- .--]
|
|-
|START -> DID YOU MEAN START GAME?
|[... - .- .-. -] -> [-.. .. -.. / -.-- --- ..- / -- . .- -. / ... - .- .-. - / --. .- -- . ..--..]
|References the below input.
|-
|STARTGAME -> CHECK BACK LATER
|[... - .- .-. - --. .- -- .] -> [-.-. .... . -.-. -.- / -... .- -.-. -.- / .-.. .- - . .-.]
|
|}
===Controls===

{| class="wikitable"
! Message & response
! Morse Code
! Explanation
|-
|QUIET -> (turns the volume off)
|[--.- ..- .. . -]
|
|-
|MUTE -> (turns the volume off)
|[-- ..- - .]
|
|-
|BEEP -> (turns the volume on)
|[-... . . .--.]
|
|}
See also QRS and QRQ.

===Q codes and radio shorthand===
An explanation of Q codes can be found {{w|Q code|here}}.

{| class="wikitable"
! Message & response
! Morse Code
! Explanation
|-
|CQ -> CQD DE SOJ
|[-.-. --.-] -> [-.-. --.- -.. / -.. . / ... --- .---]
|
|-
|SOS -> YOU TOO?
|[... --- ...] -> [-.-- --- ..- / - --- --- ..--..]
|Implies that Sojourner is also in need of help.
|-
|SOS -> OH NO
|[... --- ...] -> [--- .... / -. ---]
|
|-
|QRS -> (reduces playback speed)
|[--.- .-. ...]
|
|-
|QRQ -> (increases playback speed)
|[--.- .-. --.-]
|
|-
|QRA -> QRA SOJOURNER
|[--.- .-. .-] -> [--.- .-. .- / ... --- .--- --- ..- .-. -. . .-.]
|Usually, the answer would be a ship or a coast station, but here since "QRA" asks for who is the sender, Sojourner answers "Sojourner".
|-
|QRB -> QRB 264 MILLION KM
|[--.- .-. -...] -> [--.- .-. -... /..--- -.... ....- / -- .. .-.. .-.. .. --- -. / -.- --]
|The distance from Sojourner.
|-
|QRH -> QRH 0.652 METERS
|[--.- .-. ....] -> [--.- .-. .... / ----- .-.-.- -.... ..... ..--- / -- . - . .-. ...]
|Wavelength of Sojourner.
|-
|QRG -> QRG PATHFINDER
|[--.- .-. --.] -> [--.- .-. --. / .--. .- - .... ..-. .. -. -.. . .-.]
|Sojourner comes from {{w|Mars Pathfinder}}.
|-
|QRZ -> QRZ SOJOURNER
|[--.- .-. --..] -> [--.- .-. --.. / ... --- .--- --- ..- .-. -. . .-.]
|Sojourner is calling.
|-
|QRT -> PLEASE DON'T GO
|[--.- .-. -] -> [.--. .-.. . .- ... . / -.. --- -. .----. - / --. ---]
|Sojourner doesn't want the receiver to stop sending.
|-
|QTH -> QTH ARES VALLIS
|[--.- - ....] -> [--.- - .... / .- .-. . ... / ...- .- .-.. .-.. .. ...]
|Sojourner is situated in the {{w|Ares Vallis}}.
|-
|QSL -> QSL
|[--.- ... .-..] -> [--.- ... .-..]
|Sojourner does receive the messages.
|-
|73 -> 73 KN
|[--... ...--] -> [--... ...-- / -.- -.]
|"73" means "best regards". By saying "best regards", Sojourner ends the transmission.
|-
|CL -> BYE
|[-.-. .-..] -> [-... -.-- .]
|Since the receiver (a.k.a. the person who inputs in the comic) is closing, Sojourner replies with "bye".
|}

===FORTUNE===

{| class="wikitable"
! Message & response
! Morse Code
! Explanation
|-
|F -> DID YOU MEAN FORTUNE
|[..-.] -> [-.. .. -.. / -.-- --- ..- / -- . .- -. / ..-. --- .-. - ..- -. .]
|
|-
|FORTUNE -> OPEN ME
|[..-. --- .-. - ..- -. .] -> [--- .--. . -. / -- .]
|
|-
|OPEN -> ''returns one of the following fortunes''

1. A BEAUTIFUL SMART AND LOVING PERSON WILL BE COMING INTO YOUR LIFE

2. CHANGE IS HAPPENING IN YOUR LIFE SO GO WITH THE FLOW

3. COURTESY BEGINS IN THE HOME

4. DILIGENCE AND MODESTY CAN RAISE YOUR SOCIAL STATUS

5. EVERYWHERE YOU CHOOSE TO GO FRIENDLY FACES WILL GREET YOU

6. FOLLOW THE MIDDLE PATH NEITHER EXTREME WILL MAKE YOU HAPPY

7. FOR THE THINGS WE HAVE TO LEARN BEFORE WE CAN DO THEM WE LEARN BY DOING THEM

8. HELP IM BEING HELD PRISONER IN A CHINESE BAKERY

9. LIKE THE RIVER FLOW INTO THE SEA SOMETHING ARE JUST MEANT TO BE

10. MANS MIND ONCE STRETCHED BY A NEW IDEA NEVER REGAINS ITS ORIGINAL DIMENSIONS

11. MEDITATION WITH AN OLD ENEMY IS ADVISED

12. NEVER FEAR THE END OF SOMETHING MARKS THE START OF SOMETHING NEW

13. PERHAPS YOUVE BEEN FOCUSING TOO MUCH ON SAVING

14. SAVOR YOUR FREEDOM IT IS PRECIOUS

15. STAYING CLOSE TO HOME IS GOING TO BE BEST FOR YOUR MORALE TODAY

16. YOU ARE GENEROUS TO AN EXTREME AND ALWAYS THINK OF THE OTHER FELLOW

17. YOU HAVE AN UNUSUAL EQUIPMENT FOR SUCCESS USE IT PROPERLY

18. YOU SHOULD PAY FOR THIS CHECK BE GENEROUS

19. YOU WILL BE A GREAT SUCCESS BOTH IN THE BUSINESS WORLD AND SOCIETY

20. YOUR DREAMS ARE NEVER SILLY DEPEND ON THEM TO GUIDE YOU

21. YOUR INFINITE CAPACITY FOR PATIENCE WILL BE REWARDED SOONER OR LATER

22. YOUR MENTALITY IS ALERT PRACTICAL AND ANALYTICAL

23. YOUR MOODS SIGNAL A PERIOD OF CHANGE

24. FIRST THINK OF WHAT YOU WANT TO DO THEN DO WHAT YOU HAVE TO DO

25. ADVENTURE CAN BE REAL HAPPINESS

26. SUCCESS IS GOING FROM FAILURE TO FAILURE WITHOUT LOSS OF ENTHUSIASM

|[--- .--. . -.] ->

1. [.- / -... . .- ..- - .. ..-. ..- .-.. / ... -- .- .-. - / .- -. -.. / .-.. --- ...- .. -. --. / .--. . .-. ... --- -. / .-- .. .-.. .-.. / -... . / -.-. --- -- .. -. --. / .. -. - --- / -.-- --- ..- .-. / .-.. .. ..-. .]

2. [-.-. .... .- -. --. . / .. ... / .... .- .--. .--. . -. .. -. --. / .. -. / -.-- --- ..- .-. / .-.. .. ..-. . / ... --- / --. --- / .-- .. - .... / - .... . / ..-. .-.. --- .--]

3. [-.-. --- ..- .-. - . ... -.-- / -... . --. .. -. ... / .. -. / - .... . / .... --- -- .]

4. [-.. .. .-.. .. --. . -. -.-. . / .- -. -.. / -- --- -.. . ... - -.-- / -.-. .- -. / .-. .- .. ... . / -.-- --- ..- .-. / ... --- -.-. .. .- .-.. / ... - .- - ..- ...]

5. [. ...- . .-. -.-- .-- .... . .-. . / -.-- --- ..- / -.-. .... --- --- ... . / - --- / --. --- / ..-. .-. .. . -. -.. .-.. -.-- / ..-. .- -.-. . ... / .-- .. .-.. .-.. / --. .-. . . - / -.-- --- ..-]

6. [. ...- . .-. -.-- .-- .... . .-. . / -.-- --- ..- / -.-. .... --- --- ... . / - --- / --. --- / ..-. .-. .. . -. -.. .-.. -.-- / ..-. .- -.-. . ... / .-- .. .-.. .-.. / --. .-. . . - / -.-- --- ..-]

7. [..-. --- .-. / - .... . / - .... .. -. --. ... / .-- . / .... .- ...- . / - --- / .-.. . .- .-. -. / -... . ..-. --- .-. . / .-- . / -.-. .- -. / -.. --- / - .... . -- / .-- . / .-.. . .- .-. -. / -... -.-- / -.. --- .. -. --. / - .... . --]

8. [.... . .-.. .--. / .. -- / -... . .. -. --. / .... . .-.. -.. / .--. .-. .. ... --- -. . .-. / .. -. / .- / -.-. .... .. -. . ... . / -... .- -.- . .-. -.--]

9. [.-.. .. -.- . / - .... . / .-. .. ...- . .-. / ..-. .-.. --- .-- / .. -. - --- / - .... . / ... . .- / ... --- -- . - .... .. -. --. / .- .-. . / .--- ..- ... - / -- . .- -. - / - --- / -... .]

10. [-- .- -. ... / -- .. -. -.. / --- -. -.-. . / ... - .-. . - -.-. .... . -.. / -... -.-- / .- / -. . .-- / .. -.. . .- / -. . ...- . .-. / .-. . --. .- .. -. ... / .. - ... / --- .-. .. --. .. -. .- .-.. / -.. .. -- . -. ... .. --- -. ...]

11. [-- . -.. .. - .- - .. --- -. / .-- .. - .... / .- -. / --- .-.. -.. / . -. . -- -.-- / .. ... / .- -.. ...- .. ... . -..]

12. [-. . ...- . .-. / ..-. . .- .-. / - .... . / . -. -.. / --- ..-. / ... --- -- . - .... .. -. --. / -- .- .-. -.- ... / - .... . / ... - .- .-. - / --- ..-. / ... --- -- . - .... .. -. --. / -. . .--]

13. [.--. . .-. .... .- .--. ... / -.-- --- ..- ...- . / -... . . -. / ..-. --- -.-. ..- ... .. -. --. / - --- --- / -- ..- -.-. .... / --- -. / ... .- ...- .. -. --.]

14. [... .- ...- --- .-. / -.-- --- ..- .-. / ..-. .-. . . -.. --- -- / .. - / .. ... / .--. .-. . -.-. .. --- ..- ...]

15. [... - .- -.-- .. -. --. / -.-. .-.. --- ... . / - --- / .... --- -- . / .. ... / --. --- .. -. --. / - --- / -... . / -... . ... - / ..-. --- .-. / -.-- --- ..- .-. / -- --- .-. .- .-.. . / - --- -.. .- -.--]

16. [-.-- --- ..- / .- .-. . / --. . -. . .-. --- ..- ... / - --- / .- -. / . -..- - .-. . -- . / .- -. -.. / .- .-.. .-- .- -.-- ... / - .... .. -. -.- / --- ..-. / - .... . / --- - .... . .-. / ..-. . .-.. .-.. --- .--]

17. [-.-- --- ..- / .... .- ...- . / .- -. / ..- -. ..- ... ..- .- .-.. / . --.- ..- .. .--. -- . -. - / ..-. --- .-. / ... ..- -.-. -.-. . ... ... / ..- ... . / .. - / .--. .-. --- .--. . .-. .-.. -.--]

18. [-.-- --- ..- / ... .... --- ..- .-.. -.. / .--. .- -.-- / ..-. --- .-. / - .... .. ... / -.-. .... . -.-. -.- / -... . / --. . -. . .-. --- ..- ...]

19. [-.-- --- ..- / .-- .. .-.. .-.. / -... . / .- / --. .-. . .- - / ... ..- -.-. -.-. . ... ... / -... --- - .... / .. -. / - .... . / -... ..- ... .. -. . ... ... / .-- --- .-. .-.. -.. / .- -. -.. / ... --- -.-. .. . - -.--]

20. [-.-- --- ..- .-. / -.. .-. . .- -- ... / .- .-. . / -. . ...- . .-. / ... .. .-.. .-.. -.-- / -.. . .--. . -. -.. / --- -. / - .... . -- / - --- / --. ..- .. -.. . / -.-- --- ..-]

21. [-.-- --- ..- .-. / .. -. ..-. .. -. .. - . / -.-. .- .--. .- -.-. .. - -.-- / ..-. --- .-. / .--. .- - .. . -. -.-. . / .-- .. .-.. .-.. / -... . / .-. . .-- .- .-. -.. . -.. / ... --- --- -. . .-. / --- .-. / .-.. .- - . .-.]

22. [-.-- --- ..- .-. / -- . -. - .- .-.. .. - -.-- / .. ... / .- .-.. . .-. - / .--. .-. .- -.-. - .. -.-. .- .-.. / .- -. -.. / .- -. .- .-.. -.-- - .. -.-. .- .-..]

23. [-.-- --- ..- .-. / -- --- --- -.. ... / ... .. --. -. .- .-.. / .- / .--. . .-. .. --- -.. / --- ..-. / -.-. .... .- -. --. .]

24. [..-. .. .-. ... - / - .... .. -. -.- / --- ..-. / .-- .... .- - / -.-- --- ..- / .-- .- -. - / - --- / -.. --- / - .... . -. / -.. --- / .-- .... .- - / -.-- --- ..- / .... .- ...- . / - --- / -.. ---]

25. [.- -.. ...- . -. - ..- .-. . / -.-. .- -. / -... . / .-. . .- .-.. / .... .- .--. .--. .. -. . ... ...]

26. [... ..- -.-. -.-. . ... ... / .. ... / --. --- .. -. --. / ..-. .-. --- -- / ..-. .- .. .-.. ..- .-. . / - --- / ..-. .- .. .-.. ..- .-. . / .-- .. - .... --- ..- - / .-.. --- ... ... / --- ..-. / . -. - .... ..- ... .. .- ... --]

|All fortunes seem to be some kind of message in a fortune cookie, with the exception of fortune 8, which is a reference to [[10: Pi Equals]].

|-
|OPEN -> HUH (if after something other than "FORTUNE")
|[--- .--. . -.] -> [.... ..- ....]
|}

===ENCABULATOR===

{| class="wikitable"
! Message & response
! Morse Code
! Explanation
|-
|STATUS -> RADIO ONLINE, MOTOR ONLINE, UNILATERAL PHASE DETRACTOR UNPOWERED, CARDINAL GRAMMETER UNSYNCHRONIZED
|[... - .- - ..- ...] -> [.-. .- -.. .. --- / --- -. .-.. .. -. . --..-- / -- --- - --- .-. / --- -. .-.. .. -. . --..-- / ..- -. .. .-.. .- - . .-. .- .-.. / .--. .... .- ... . / -.. . - .-. .- -.-. - --- .-. / ..- -. .--. --- .-- . .-. . -.. --..-- / -.-. .- .-. -.. .. -. .- .-.. / --. .-. .- -- -- . - . .-. / ..- -. ... -.-- -. -.-. .... .-. --- -. .. --.. . -..]
|
|-
|YOUTUBE -> RXJKDH1KZ0W
|[-.-- --- ..- - ..- -... .]
|This represents the video ID for [https://youtu.be/RXJKdh1KZ0w Rockwell Retro Encabulator]
|-
|REPAIR ''or'' ENCABULATOR ''or'' FIX ''or'' SYSTEM  -> ENTERING ENCABULATOR RECOVERY SYSTEM. OPTIONS 1 INITIATE SIDE FUMBLING 2 ALIGN SPURVING BEARINGS 3 REVERSE TREMIE PIPE
:1 -> SIDE FUMBLING DETECTED. MODIAL INTERACTION UNSTABLE. RECOVERY TERMINATED.
:2 -> MODIAL INTERACTION INITIATED. OPTIONS 1 UNWIND LOTUS O DELTOID 2 INCREASE DEPLENERATION 3 CONNECT GIRDLESPRING ON DOWN END OF GRAMMETER 4 CONNECT SEVENTH CONDUCTOR TO GIRDLESPRING
::1 -> SIDE FUMBLING DETECTED. MODIAL INTERACTION UNSTABLE. RECOVERY TERMINATED.
::2 -> DEPLENERATION PREVENTED BY DINGLE ARM
::3 -> SIDE FUMBLING DETECTED. MODIAL INTERACTION UNSTABLE. RECOVERY TERMINATED.
::4 -> PANAMETRIC FAN ACTIVATED. MODIAL INTERACTION STABLE. DEFAULT CONFIGURATION MISSING. MANUALLY ENTER MARZELVANE TYPE TO COMPLETE RECOVERY
:::HYDROCOPTIC -> RECOVERY SUCCESSFUL. REBOOT Y N?
::::Y -> (''Opens [https://imgs.xkcd.com/comics/sojourner_repaired.png sojourner_repaired.png]'')
:3 -> ERROR TREMIE PIPE NONREVERSIBLE
|[.-. . .--. .- .. .-.] ''or'' [. -. -.-. .- -... ..- .-.. .- - --- .-.] ''or'' [..-. .. -..-] ''or'' [... -.-- ... - . --] -> [. -. - . .-. .. -. --. / . -. -.-. .- -... ..- .-.. .- - --- .-. / .-. . -.-. --- ...- . .-. -.-- / ... -.-- ... - . -- .-.-.- / --- .--. - .. --- -. ... / .---- / .. -. .. - .. .- - . / ... .. -.. . / ..-. ..- -- -... .-.. .. -. --. / ..--- / .- .-.. .. --. -. / ... .--. ..- .-. ...- .. -. --. / -... . .- .-. .. -. --. ... / ...-- / .-. . ...- . .-. ... . / - .-. . -- .. . / .--. .. .--. .]
:[.----] -> [... .. -.. . / ..-. ..- -- -... .-.. .. -. --. / -.. . - . -.-. - . -.. .-.-.- / -- --- -.. .. .- .-.. / .. -. - . .-. .- -.-. - .. --- -. / ..- -. ... - .- -... .-.. . .-.-.- / .-. . -.-. --- ...- . .-. -.-- / - . .-. -- .. -. .- - . -.. .-.-.-]
:[..---] -> [-- --- -.. .. .- .-.. / .. -. - . .-. .- -.-. - .. --- -. / .. -. .. - .. .- - . -.. .-.-.- / --- .--. - .. --- -. ... / .---- / ..- -. .-- .. -. -.. / .-.. --- - ..- ... / --- / -.. . .-.. - --- .. -.. / ..--- / .. -. -.-. .-. . .- ... . / -.. . .--. .-.. . -. . .-. .- - .. --- -. / ...-- / -.-. --- -. -. . -.-. - / --. .. .-. -.. .-.. . ... .--. .-. .. -. --. / --- -. / -.. --- .-- -. / . -. -.. / --- ..-. / --. .-. .- -- -- . - . .-. / ....- / -.-. --- -. -. . -.-. - / ... . ...- . -. - .... / -.-. --- -. -.. ..- -.-. - --- .-. / - --- / --. .. .-. -.. .-.. . ... .--. .-. .. -. --.]
::[.----] -> [... .. -.. . / ..-. ..- -- -... .-.. .. -. --. / -.. . - . -.-. - . -.. .-.-.- / -- --- -.. .. .- .-.. / .. -. - . .-. .- -.-. - .. --- -. / ..- -. ... - .- -... .-.. . .-.-.- / .-. . -.-. --- ...- . .-. -.-- / - . .-. -- .. -. .- - . -.. .-.-.-]
::[..---] -> [-.. . .--. .-.. . -. . .-. .- - .. --- -. / .--. .-. . ...- . -. - . -.. / -... -.-- / -.. .. -. --. .-.. . / .- .-. --]
::[...--] -> [... .. -.. . / ..-. ..- -- -... .-.. .. -. --. / -.. . - . -.-. - . -.. .-.-.- / -- --- -.. .. .- .-.. / .. -. - . .-. .- -.-. - .. --- -. / ..- -. ... - .- -... .-.. . .-.-.- / .-. . -.-. --- ...- . .-. -.-- / - . .-. -- .. -. .- - . -.. .-.-.-]
::[....-] -> [.--. .- -. .- -- . - .-. .. -.-. / ..-. .- -. / .- -.-. - .. ...- .- - . -.. .-.-.- / -- --- -.. .. .- .-.. / .. -. - . .-. .- -.-. - .. --- -. / ... - .- -... .-.. . .-.-.- / -.. . ..-. .- ..- .-.. - / -.-. --- -. ..-. .. --. ..- .-. .- - .. --- -. / -- .. ... ... .. -. --. .-.-.- / -- .- -. ..- .- .-.. .-.. -.-- / . -. - . .-. / -- .- .-. --.. . .-.. ...- .- -. . / - -.-- .--. . / - --- / -.-. --- -- .--. .-.. . - . / .-. . -.-. --- ...- . .-. -.--]
:::[.... -.-- -.. .-. --- -.-. --- .--. - .. -.-.] -> [.-. . -.-. --- ...- . .-. -.-- / ... ..- -.-. -.-. . ... ... ..-. ..- .-.. .-.-.- / .-. . -... --- --- - / -.-- / -. ..--..]
::::[-.--]
:[...--] -> [. .-. .-. --- .-. / - .-. . -- .. . / .--. .. .--. . / -. --- -. .-. . ...- . .-. ... .. -... .-.. .]
|
|-
|}

===MAZE===

{| class="wikitable"
! Message & response
! Morse Code
! Explanation
|-
|RETURN -> DID YOU MEAN ENTER
|[.-. . - ..- .-. -.]
|Return and enter are usually different names for the line-break key on a keyboard. "Carriage Return" is a holdover from mechanical typewriters (returning the carriage, and therefore the printing area, to its start-of-row position), in both mechanical and electronic outputs often implicitly (or explicitly) combined with Line Feed (moving the printing zone one effective line further down, or shifting the medium a similar degree up).

"Enter" references the wish to submit some input (e.g. the contents of the database or form field(s) just edited, or ), and is essentially synonymous with forcing the move of a cursor to a new line. Often keyboards do not even have keycap text to indicate the key called "Return", "Enter" or any other name, instead using the prominent glyph '''&crarr;'''.

In the case of describing travel (for example, at the entrance to a maze), the words ''could'' instead be described as antonyms. One can ''enter'' the maze, or ''return'' to a prior location (leaving the vicinity of the maze – if not the maze itself, if you had already entered). This may or may not be an additional intended joke, as in dialogues that ask obscure and ambiguously phrased choices such as "Do you want to end this task? [Quit]/[Cancel]”.
|-
|ENTER -> DID YOU MEAN ENTER MAZE
|[. -. - . .-.]
|
|-
|ENTER MAZE -> AN EMPTY ROOM
:LOOK -> AN EMPTY ROOM
:HELP -> NORTH EAST SOUTH WEST GET
:EXIT -> CFM (''Exits the maze'')
|[. -. - . .-. / -- .- --.. .] -> [.- -. / . -- .--. - -.-- / .-. --- --- --]
:[.-.. --- --- -.-] -> [.- -. / . -- .--. - -.-- / .-. --- --- --]
:[.... . .-.. .--.] -> [-. --- .-. - .... / . .- ... - / ... --- ..- - .... / .-- . ... - / --. . -]
:[. -..- .. -] -> [-.-. ..-. --]
|
|}
 {| class="wikitable"
 |+ Maze
 |-
 |an open flame || a candle on a table || style="background-color: black;" |
 |-
 | style="background-color: black;" | || an empty room (start) || style="background-color: black;" |
 |-
 | style="background-color: black;" | || a hanging bell || an open book on a table (locked door)
 |- 
 |}

Steps to complete (directions can be abbreviated as their first letter):
# NORTH
# GET CANDLE -> TAKEN
# WEST
# LIGHT CANDLE
# EAST
# SOUTH
# SOUTH
# RING BELL -> A DOOR OPENS
# EAST
# CLOSE BOOK -> CONGRATULATIONS YOU ESCAPE

===CROSSWORD===
{| class="wikitable"
! Message & response
! Morse Code
! Explanation
|-
|CROSSWORD -> NUMBER AND DIRECTION
|[-.-. .-. --- ... ... .-- --- .-. -..] -> [-. ..- -- -... . .-. / .- -. -.. / -.. .. .-. . -.-. - .. --- -.]
|This starts a crossword. You can ask for hints like "1 down" or "2 across". It appears to be the [https://rexwordpuzzle.blogspot.com/2021/04/libertarian-politico-johnson-thu-4-1-21.html New York Times Crossword] from the day this comic was written (2021-04-01).
|}

{| class="wikitable"
|+Solved Crossword
|-
| m || y || g || o || d || style="background-color: black; | || d || e || v || style="background-color: black; | || style="background-color: black; | || style="background-color: black; | || e || l || f
|-
| b || u || o || n || o || style="background-color: black; | || e || y || e || s || style="background-color: black; | || s || l || u || r
|-
| a || m || o || c || o || style="background-color: black; | || c || r || a || p || style="background-color: black; | || l || m || a || o
|-
| style="background-color: black; | || style="background-color: black; | || v || e || r || y || r || e || l || i || g || i || o || u || s
|-
| s || e || e || style="background-color: black; | || m || u || y || style="background-color: black; | || style="background-color: black; | || r || a || m || style="background-color: black; | || style="background-color: black; | || style="background-color: black; |
|-
| h || a || r || h || a || r || style="background-color: black; | || s || c || a || r || e || d || o || f
|-
| e || s || s || e || n || t || i || a || l || l || y || style="background-color: black; | || a || r || i
|-
| b || t || e || n || style="background-color: black; | || style="background-color: black; | || m || m || i || style="background-color: black; | || style="background-color: black; | || t || v || a || d
|-
| o || l || a || style="background-color: black; | || b || a || d || m || o || u || t || h || i || n || g
|-
| p || a || s || s || e || d || b || y || style="background-color: black; | || n || o || o || d || g || e
|-
| style="background-color: black; | || style="background-color: black; | || style="background-color: black; | || o || a || r || style="background-color: black; | || style="background-color: black; | || s || u || n || style="background-color: black; | || l || e || t
|-
| b || l || e || n || d || e || d || f || a || m || i || l || y || style="background-color: black; | || style="background-color: black; |
|-
| b || o || r || g || style="background-color: black; | || p || e || l || t || style="background-color: black; | || g || e || n || r || e
|-
| q || u || i || z || style="background-color: black; | || s || p || a || y || style="background-color: black; | || h || i || c || k || s
|-
| s || t || e || style="background-color: black; | || style="background-color: black; | || style="background-color: black; | || p || b || r || style="background-color: black; | || t || a || h || o || e
|}

{| class="wikitable mw-collapsible mw-collapsed"
|+ Words
! index !! down word !! across word
|-
| 1 || MBA || MYGOD
|-
| 2 || YUM || 
|-
| 3 || GOOVERSEAS || 
|-
| 4 || ONCE || 
|-
| 5 || DOORMAN || 
|-
| 6 || DECRY || DEV
|-
| 7 || EYRE || 
|-
| 8 || VEAL || 
|-
| 9 || ELMO || ELF
|-
| 10 || LUAU || 
|-
| 11 || FROS || 
|-
| 12 ||  || BUONO
|-
| 13 ||  || EYES
|-
| 14 || SPIRAL || 
|-
| 15 || SLIME || SLUR
|-
| 16 ||  || AMOCO
|-
| 17 ||  || CRAP
|-
| 18 ||  || LMAO
|-
| 19 ||  || VERYRELIGIOUS
|-
| 20 || YURT || 
|-
| 21 || GARY || 
|-
| 22 || SHEBOP || SEE
|-
| 23 || EASTLA || 
|-
| 24 ||  || MUY
|-
| 25 ||  || RAM
|-
| 26 ||  || HARHAR
|-
| 27 || HEN || 
|-
| 28 || SAMMY || SCAREDOF
|-
| 29 || CLIO || 
|-
| 30 || DAVIDLYNCH || 
|-
| 31 || ORANGE || 
|-
| 32 || FIDGET || 
|-
| 33 ||  || ESSENTIALLY
|-
| 34 || IMDB || 
|-
| 35 ||  || ARI
|-
| 36 ||  || BTEN
|-
| 37 ||  || MMI
|-
| 38 || THO || TVAD
|-
| 39 ||  || OLA
|-
| 40 || BEAD || BADMOUTHING
|-
| 41 || ADREPS || 
|-
| 42 || UNUM || 
|-
| 43 || TONIGHT || 
|-
| 44 ||  || PASSEDBY
|-
| 45 || SONGZ || 
|-
| 46 ||  || NOODGE
|-
| 47 ||  || OAR
|-
| 48 || SATYR || SUN
|-
| 49 ||  || LET
|-
| 50 || BBQS || BLENDEDFAMILY
|-
| 51 || LOUT || 
|-
| 52 || ERIE || 
|-
| 53 || DEPP || 
|-
| 54 || FLAB || 
|-
| 55 || LEIA || 
|-
| 56 ||  || BORG
|-
| 57 ||  || PELT
|-
| 58 ||  || GENRE
|-
| 59 || RKO || 
|-
| 60 || ESE || 
|-
| 61 ||  || QUIZ
|-
| 62 ||  || SPAY
|-
| 63 ||  || HICKS
|-
| 64 ||  || STE
|-
| 65 ||  || PBR
|-
| 66 ||  || TAHOE
|}

===Rover Scene===
After successfully repairing and rebooting Sojourner, a comic is opened which depicts it seeking out and finding its friends, Spirit, Opportunity, Curiosity, Perseverance, and Ingenuity. Curiosity and Perseverance are locked in a swordfight, and either Spirit or Opportunity is carried off by Ingenuity while the other speeds off a small mound of dirt. Ingenuity carrying a rover is a reference to the previous comic.

==Special Console Commands==
The page's JavaScript creates a global object <code>morse</code> with <code>encode</code> and <code>decode</code> methods.  From the developer console, it is possible to write  <code>morse.encode("A PHRASE")</code>, which will print the Morse code corresponding to the text provided, or <code>morse.decode("... --- ...")</code> which will translate the Morse code to text.

<code>BeepComic.hurryUp()</code> to get the reply immediately in the console.
<code>BeepComic.send(...)</code> to send directly to SOJOURNER.

{{comic discussion}}

[[Category:April fools' comics]]
[[Category:Interactive comics]]
[[Category:Comics with animation]]
[[Category:Dynamic comics]]
[[Category:Comics with audio]]