Questions tagged [cipher]

A cipher is a simple method of modifying messages to make them unreadable except to readers who know the key. Common ciphers are Caesar, Vigenere, Atbash, and several types of substitution cipher. Other ciphers include polygraphic ciphers such as Playfair and Foursquare and numerical ciphers such as Polybius and Nihilist. Cipher puzzles sometimes make use of data encodings like Morse, Binary, or Base64.

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Snailfence: Deciphering puzzle

The following text describes the method used to encipher it. Ssatnntloe-lree-itgaiima-t-odto-tl,hchaenisoa-a-oitnpsnefenf-p-coigtlxilon--letdnrhitC-iar-ae-reamralcppi-pttfp-dpt-ehrneWeaet-oet-nscewee-...
codewarrior0's user avatar
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2 votes
0 answers
138 views

Lyrics from a P!nk Song?

The subject line is a clue, but you’ll need to find where. Additional clue: look up. Or down, maybe. I have to admit the answer isn’t very rewarding. Sorry about that; it’s more a proof of concept ...
Pierre Paquette's user avatar
1 vote
1 answer
89 views

What next step could I take to solve the Dec. 4 cryptoquote from the Wisconsin State Journal?

So as you might or might not know, I enjoy solving cryptoquotes (also known as cryptograms), and sometimes get stuck on them. Here is today's cryptoquote from the Wisconsin State Journal: ...
CrSb0001's user avatar
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3 votes
0 answers
188 views

Decode the ancient prophecy

A team of archaeologists has discovered an ancient clay tablet. They understand the script it is written in, and have transliterated it to the Latin alphabet, but they do not understand the language. ...
Someone's user avatar
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3 votes
1 answer
228 views

How to solve the Nov. 29 cryptoquote in the Wisconsin State Journal?

apparently the cryptogram tag is a tag synonym for cipher so I guess that's what I'm using So recently I have been trying to get back into solving the cryptoquotes because I used to enjoy doing them. ...
CrSb0001's user avatar
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23 votes
1 answer
1k views

The FBI needs your help with this Zodiac killer message

During a recent thorough cleanup round at the main building of the San Fransisco Chronicle, an employee found a piece of paper stuck behind an archive closet in one of the many archive rooms. Her ...
sarsaparilla's user avatar
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6 votes
6 answers
6k views

'SILVER' -> ‘LESIRU' and 'GOLDEN' -> 'LEGOND', so 'NATURE' -> what?

I found this problem in an Indian Highschool Reasoning Olympiad. (image) If 'SILVER' is coded as 'LESIRU' and 'GOLDEN' is coded as 'LEGOND', then in the same code language how 'NATURE' will be coded ...
Darshit Sharma's user avatar
1 vote
1 answer
198 views

In a certain code 'NATIONAL' is written as 'JUBOKZMN'. How is 'ELECTION' written in that code?

In a certain code 'NATIONAL' is written as 'JUBOKZMN'. How is 'ELECTION' written in that code? (A) FMFDSHNM (B) DFMFMNHS (C) DMFMFHNS (D) MFDFHSMN I really tried many basic methods using positional ...
Darshit Sharma's user avatar
-1 votes
1 answer
147 views

My first attempt at creating a self-referential cipher

I recently made a self referential cipher (meaning that the key is the same as what is being decoded) a while back and was planning on putting it on here after making the cipher a bit more difficult. ...
CrSb0001's user avatar
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2 votes
1 answer
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the flute section keeps passing notes

(_ˇ෴ˇ)_⟋ 🎵🎶 (づ🪈◕‿◕ )づ日 ٩(◕‿◕)۶🪈 The band director is tired of the flutes passing notes in class, but he can't tell what the notes say. Here is one of the messages. 2 10 - 1 2 3 10 - 1 2 10 - 1 ...
MWQOJYNWQA's user avatar
2 votes
0 answers
104 views

phonetic encryption [closed]

0x09f 6 Wilhelm Paula 67dsa7 Friedrich Josef Gustav Toni Caeser Dora Gustav Oh762d. and Joseph 78sada Paula Ludwig Friedrich Joseph 67das 7d Tony 87h677 Dora Gustav h7f ehfs. Ox 786 bds7fds Paula ...
UMASHANKAR NS's user avatar
4 votes
1 answer
285 views

A fun and simple Nonogram... ...with a cipher

Goal of this puzzle: Find the hidden message in this Nonogram that I created. The puzzle: play online Hint:
CrSb0001's user avatar
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-3 votes
1 answer
213 views

see/// ,sm. upi eo;; gohitr yjod piy/

see/// ,sm. upi eo;; gohitr yjod piy/ Did you solve it? If so, post your answer below. Go solve it! It is really easy. It is a common secret language. (Not really secret though.)
user86796's user avatar
4 votes
1 answer
133 views

A Squared Cipher

While looking for squares, I stumbled across these numbers, which seemed to form a message: ...
SquareFinder's user avatar
-1 votes
1 answer
104 views

A 10x9 Hidato puzzle with a cipher

rot18(A se zgfwkldq jwsddq tsv sl ujwslafy hmrrdwk kg zghwxmddq sl kgew hgafl A sulmsddq kzgo aehjgnwewfl dgd) You might note that something is off about the following Hidato puzzle. Well, I guess in ...
CrSb0001's user avatar
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1 vote
0 answers
69 views

Finding solution from reading computer language puzzle [closed]

How to improve this puzzle? The task is to find a result, like a number from 1 to 10 from reading and understanding code. For example: ...
atlvd's user avatar
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7 votes
1 answer
471 views

Decipher this sentence, written in an original cipher

What does this sentence say? What manner of speech does it represent? I can safely declare that this cipher is entirely novel: Understanding this writing system does not depend on knowing any ...
isaacg's user avatar
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1 vote
0 answers
230 views

The Messenger's Riddle

Two lovers, separated by war, devised a secret code to communicate. The code consisted of a 9x9 grid, in which each cell contained a letter. The letters spelled out a hidden message when read starting ...
Growing_strong's user avatar
7 votes
0 answers
211 views

help? weird bug [closed]

hey stackoverflowers im very new to html so if one of you could give me a pointer on what went wrong here that would be really helpful. im trying to make an online⠀order⠀site but something happened ...
violetorigin's user avatar
1 vote
1 answer
836 views

But do puzzles really need visible or even highlitable text to be a good puzzle?

$\color{white}{fillertextsigh}$
CrSb0001's user avatar
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0 votes
1 answer
177 views

this puzzle is based

This message is a basic numeric substitution cipher. The key is the standard, regular alphabet in the correct order (ABC...XYZ). Here is the message: 3 16 15 7 20 1 22 23 13 1 22 10 16 15 21 27 16 23 ...
MWQOJYNWQA's user avatar
22 votes
1 answer
2k views

Animal Farm and the Porcine Penitentiary

It's a disaster at the farm! Overnight, some nefarious individual has stolen an animal. You're not sure which animal, but you're sure that when you went to bed there were ten, and now there are only ...
Johnson's user avatar
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0 votes
0 answers
132 views

The multi-layered multi-layered puzzle competition Part 1/11: February 16th, 2013

This is Part 1 of The multi-layered multi-layered puzzle competition, a 11 part puzzle hunt. Each part is solvable on its own, with the exception of the meta-puzzle at the end Note: This is entirely a ...
CrSb0001's user avatar
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2 votes
0 answers
254 views

My smol boi puzzle! :3

It should be noted that all this puzzle intends to do is give the second half of the answer to my first puzzle, while being a puzzle itself. Other than that, this is just your normal smol boi puzzle :...
CrSb0001's user avatar
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3 votes
1 answer
311 views

A simple and quite fun cipher: Redux

Previous ungood creation here Attribution to: Me :) Also sorry for all of the rot13("zrzrfcrnx") per se. I'm just trying to include a bit of a "humor" element into my ciphers. :) ...
CrSb0001's user avatar
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2 votes
1 answer
317 views

A simple and quite fun cipher puzzle

Don't worry, this is my creation :) Goal of this puzzle: Decrypt the puzzle to find out what the secret (final) message is. Each part of the puzzle depends on the previous part (except for the first)....
CrSb0001's user avatar
  • 1,286
12 votes
1 answer
510 views

a numerical headline

I picked up the English-language version of the popular tabloid Bild von Affen, and was surprised to see this headline. What does it mean? 1 69 39 64 13 71,   46 27 6 12 61 33   7 74 32 24 44 47   25 ...
msh210's user avatar
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3 votes
1 answer
311 views

An anagrammed logic puzzle!

ot rleow utbrctsa aacpilt hwti dioiatdn het ryuo s-bcBPEFfJDfeFmksmPOkChDhrgBqjD-i---ffeNB
nomad.lw's user avatar
  • 119
12 votes
1 answer
561 views

A sudokey and 14 messages

This puzzle is part of the Monthly Topic Challenge #15: Multi Puzzle — two (or more) puzzles in one. Remarks: Feel free to post partial solutions. This is a multi-puzzle: If you found the titular 14 ...
Retudin's user avatar
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1 vote
1 answer
222 views

Cheese from Denmark

You'll need "cheese from denmark" for this cipher puzzle. Denmark Portugal 1/2 France "hello" ?AI EBOM AEEDY EHT SEOU EPNHS TNHG OS EPNHS "F" AN AI SEBOM SSEHÆ AI ...
poco's user avatar
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3 votes
0 answers
147 views

The Mono-Quantum Condrum

You are presented with a locked box, and on its surface, you notice a sequence of peculiar symbols: ⌬ ⌅ ⊙ ⊡ Next to the symbols, there's an inscription: ...
Aitzaz Imtiaz's user avatar
1 vote
1 answer
153 views

Good cipher with a "password"?

I'm starting to create a puzzle, but I'm going to need a cipher that will be impossible (or at least very difficult) to crack, but can be easily decoded with a key. I first looked at the one-time pad ...
Blue Herring's user avatar
  • 1,169
2 votes
1 answer
240 views

#TenderfootSpiral

Clues: Two hikers on an incline arrow with numbers. Hiker 1 says: 38.548493. Hiker 2 says: -105.998749. Sequence: Hiker 17711 Hiker 0 377 0 144 1 10946 233 987 0 2584 6765 75025 Hiker = ...
Tyler's user avatar
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15 votes
1 answer
837 views

A Trivial Pursuit #07 (Geography 2/4): String Theory

This is part 7 of A Trivial Pursuit, a 25-part puzzle hunt. Each part is solvable on its own, with the exception of the meta-puzzle at the end. If e* t* u* v* w* x* y* is H... What relevant (if ...
Stiv's user avatar
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1 vote
0 answers
182 views

Find the ciphering method 4

Link to the entire series. The message: ...
web adventurer's user avatar
5 votes
1 answer
371 views

Find the ciphering method 2

Link to the entire series. The message: 3, 53, 48751, 9247757, 294914580539 The answer is a 13 letter word: UNDERSTANDING Hint 1:
web adventurer's user avatar
2 votes
1 answer
266 views

Find the ciphering method using deciphered message

Link to the entire series. Ciphered message: ...
web adventurer's user avatar
12 votes
1 answer
336 views

Seems like a metaphor

Let's Draw! STEP 1 DDD DDD STEP 2 VVD DCC STEP 3 N VVD DCC U STEP 4 ...
poco's user avatar
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-5 votes
1 answer
211 views

Decipher a long sequence of numbers

51699624576811268526783109824167925197245652924177251787241782538786302873119768312852668312686625268245686752824473216878253830287925175273039778250852831287672527245665263006725397251762529312811498 ...
web adventurer's user avatar
14 votes
1 answer
496 views

An X x X Slitherlink related to X

This puzzle is part of the Monthly Topic Challenge #13: Variety Slitherlinks. The final answer is a six letter word. Prefer no partial answers. penpa
Amoz's user avatar
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8 votes
3 answers
605 views

The End of the Desert Sauce

Transcript Clues: [map compass containing "19!"] 3336665555556669 84433 7777833255 777728822233 8666 77773333 944666 933 64444448 2233 +---+---+---+---+---+ +---+---+---+---+---+ | | 3 | 4 | 5 | ...
Tyler's user avatar
  • 1,083
13 votes
1 answer
692 views

6 types of puzzles I like

I like puzzles where you find out about something interesting. Mike Wilks I like image editing puzzles. I like code puzzles, where the code is not that obvious. Pakistan Dance Omega Beans Cricket ...
poco's user avatar
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-5 votes
1 answer
193 views

This is a message encoded in a rather obscure foreign language. What language is it and what's the riddle's solution?

The following message contains a riddle written in an encrypted form of a rather obscure language lacking a literary standard that is rarely spoken today. What does it mean and what is the solution to ...
Galactic's user avatar
  • 243
3 votes
0 answers
284 views

Cryptogram or Anagram

Clues: The answer is 7 characters Answer can include the following characters: [a-zA-Z0-9] Ideas: I first used all characters adjacent to every capital letter and got: "rnaoihd", which ...
nomad.lw's user avatar
  • 119
-1 votes
1 answer
331 views

Kidnapper? Some Spacing needed

Prologue You are coming home from work, happy with your current coding progress (you are a coding and maths prodigy), but then you get kidnapped... You wake up after some hours of sleep in the ...
WOWOW's user avatar
  • 117
2 votes
1 answer
159 views

The Poem's in the Wires

Here's one I thought folks here might appreciate. It'll require a combination of codebreaking (or codefinding) and a tiny dab of cryptic mindset. What poem is written below? For bonus points, provide ...
ConnieMnemonic's user avatar
4 votes
2 answers
670 views

A historical cipher

You are born in the time of 100 BC. Now what? gvcwndxphufrcshvrtfrnhwnircssynbntnwnnglcufnbgwrf
poco's user avatar
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5 votes
2 answers
891 views

Decrypt from b to a

You are coding on your laptop, and check your inbox. You see an email: ...
WOWOW's user avatar
  • 117
4 votes
1 answer
533 views

Help a woman from ancient Rome find out how her husband is doing

Let's go back 2000 years. A woman named Valeria received a strange message from her husband Claudius who is a frumentarius. The message: ...
web adventurer's user avatar
4 votes
0 answers
327 views

Relax, I’m Kidnapped! - Part 2

Part 1: Relax, I’m Kidnapped! - Part 1 You manage to solve the crossword, and you show your captor the answers. “Well, you solved it…but I’m not done yet. Go to my room,” he replies. He directs you to ...
misc544's user avatar
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