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A friend of mine thent me thith note. He'th a little bit thy and often preferth to thend a metthage rather than thay thomething in perthon, even if it'th quite thort, and thometimeth amutheth himthelf by putting it in the form of a putthle. I honethtly have no idea what to make of thith one though, although from what he thaid when he gave it to me, I think one of the lineth on the left ith encrypted quite thimply, uthing a different technique to the otherth. I've pothted it here, in cathe any of the brilliant putthlerth on thith thite can help me with it. What ith he trying to thay?


Note


Edit: Sincere apologies, there was a slight error in the original image. I've updated the image. It will not change the solution; there was a word misspelled at one point - you could certainly solve the puzzle using the original image, and if anyone is partway through the solution, they should be able easily to modify it. The corrected text can be found here.


Hint: I'm not sure whether anyone's working on this, and if so where they're stuck, so I'll begin with a basic hint in case anyone wants to give it a crack...

Spoiler alert: The first line on the left should be trivial to decode (practically at sight) for anyone who's spent time on this site.

The answer to that first line on the left is a word that should also be very familiar to most regular users of this site.

Feel free to post partial answers, as there's a few little steps to this puzzle.


Hint 2: Since there was some interest in this puzzle, but there's been no progress in about a month, I thought I'd post a little hint in case anyone is still interested...

@Stiv and @LukasRotter have made significant progress here. They have found solutions to the first four lines which read:

VIGENERE FOU
PASCAL GMO
SAINT CDJ
CENDRARS JPQ
GISBERT ???

@Stiv has also discovered the historical figures to whom each line refers. The obvious next task then is to discover the source of the three letter combinations (FOU, GMO, CDJ, JPQ), so that the ??? triplet can be deduced. The presentation of the puzzle might be useful here...
Another task that can be worked on separately is to find how the rightmost triplets (TAM, LBT, VSV, IBQ, KSJ) fit into the rest of the puzzle, so that the boxed triplet ??? can be deduced.

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    $\begingroup$ Does your friend happen to have a lisp xD $\endgroup$ – William Pennanti May 4 at 10:16
  • $\begingroup$ @WilliamPennanti A possible conclusion haha $\endgroup$ – Anon May 4 at 10:28
  • $\begingroup$ @Anon Shouldn't the "metthage" be spelled as "meththage"? $\endgroup$ – defectedWBC May 4 at 10:46
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    $\begingroup$ @defectedWBC Haha I had to pick a way to spell it. Don't get hung up on details in the background text. Essentially everything you need to solve the puzzle is in the image. (Although the lithp ith obviouthly there for a reathon). $\endgroup$ – Anon May 4 at 10:49
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    $\begingroup$ Sincere apologies, there was a slight error in the original image. I've updated the image; it will not change the solution, there was just a word misspelled - you could certainly solve the puzzle using the original image, and if anyone is partway through the solution, they should be able easily to modify it. The corrected text can be found here $\endgroup$ – Anon May 4 at 11:30
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A partial answer but with excellent progress, thanks in part to insights from @LukasRotter


Line 1:

ANRIVPBAPYHQVATVANHTHENGVBATRAHSYRPGORSBERZRNAFGBPBAPRNYJBEQF

This line of text is encoded using:

rot-13

and decodes as:

NAEVICONCLUDINGINAUGURATIONGENUFLECTBEFOREMEANSTOCONCEALWORDS. Adding spaces in sensible places produces:
NAEVI CONCLUDING INAUGURATION GENUFLECT BEFORE MEANS TO CONCEAL WORDS

What is this? Well, it's...

a cryptic clue of sorts. Specifically, if we take the last ('concluding') letters of NAEVI and the starting ('inauguration') letters of GENUFLECT, then add the word ERE, which in poetry means 'before', then we produce something which is a 'means to conceal words' - i.e. it points towards the VIGENÈRE cipher.

Line 2:

BZGRQTRWHOFXCREGMFRMWXKZKWFYIIVIUIBOJVII [KRC]

This line of the puzzle is encoded using the cipher indicated by decoding line 1, so now we need to identify a key. In my first answer posting I initially posted some findings of my early attempts to find such a thing. One of my observations enabled @LukasRotter to make a breakthrough in comments (reproduced here with thanks):

Initially I found that if we attempt to decode this using the key 'VIGENERE' we produce the 'plaintext' GRANDPASMGZTPNNCRXLIJTTVPOZUVEEEZAVKWRRE, which appears to begin with the real word GRANDPAS, suggesting we may be on to something. Lukas then noticed that if we also included the triplet 'SBH' at the end of line 1 before decoding with rot-13, this resulted in the triplet 'FOU'. If we attach this to the end of our key and decode line 2 using the key 'VIGENEREFOU' we do produce some output in the form of a series of English words, which once spaces are added spells out:
GRANDPAS CALCULATION HID PRESSURE QUANTIFIER [GMO]

What is this? Well, it's...

another cryptic clue, which results in the answer PASCAL, since 'GRANDPAS CALCULATION' hides the letter sequence 'PASCAL', which is the name of a scientific unit of pressure. This suggests that the key for the next line will be 'PASCALGMO', where GMO is the decoding of the 'KRC' triplet.

Line 3:

QEDKEGKDVTAJFEDYMMXNLJEMKSWCNAPG [NJV]

This decodes as follows:

It's another Vigenere cipher, this time requiring the key 'PASCALGMO' as found above. The resulting plaintext is:
BELIEVER HEARD ESSAY IN THE BEGINNING [CDJ]

What is this? Yep, you guessed it! It's...

another cryptic clue! The definition is BELIEVER. 'HEARD ESSAY' gives S A ('ess ay' when read aloud, i.e. 'heard'), which needs to be followed by IN and T (being the beginning of 'THE'). The answer is thus SAINT and our keyword for the next line is 'SAINTCDJ'...

Line 4:

FEEJHTGXXPWRMUZRDLBETPVLWNLEXILBLRIELGQMANOF [CRT]

This decodes in similar fashion:

It's another Vigenere cipher, using key 'SAINTCDJ' and reveals the plaintext:
NEW WORD OF POETS WILL TRANSCEND REGISTRARS ENDINGS [JPQ]

By now, you should recognise what you're looking at here...

Another cryptic clue, of course. A bit of an obscure one, but @LukasRotter spotted in comments that this could result in the answer CENDRARS, referring to the surname adopted by the poet Blaise Cendrars. (Obtain this from the endings of TRANSCEND REGISTRARS...) Couple this with 'JPQ' to gain the key 'CENDRARSJPQ' for the final line...

Line 5:

CRBWVIJJNIKTRVQXUEWWSYPKULXHGACRXGHADDEDWJCYPKILMIUNXL [???]

Decode this line as per the others...

(Vigenere cipher, this time using the keyword 'CENDRARSJPQ'), yielding the plaintext:
A NOTE IS RETURNING UNENDING HIGH PITCHED NAME MEANING VIVID VOW

And again, this is...

a cryptic clue, which results in the answer GISBERT, which is a name meaning 'bright pledge', a synonym of 'vivid vow'. Here, 'A (musical) NOTE' is G, then we have IS and 'HIGH PITCHED' is 'TREBLE' - if this word were unending it would be 'TREB', then returning (reversing) it gives us BERT.

Next steps:

The first thing to notice is doubtless that there is a connection between all the keywords we have discovered so far (even mentioned at one point!). Each of our keywords...

can be paired with BLAISE to make the name of a famous person:

Blaise de VIGENÈRE
Blaise PASCAL
SAINT Blaise
Blaise CENDRARS
Blaise GISBERT

So what do we with this knowledge? A couple of thoughts:

- Possibly we are supposed to use 'BLA' and 'ISE' to complete the two sets of question marks at the bottom of the puzzle...

- Possibly the lisp comes into it here and the letters 'BLAITHE' (substituting the 'S' with 'TH') becomes important...

- And we also have to deal with the presentation of the piece, notably the cross at the top of the puzzle...

A little more thought required, but possibly almost there...

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    $\begingroup$ LOL who keeps downvoting these partial answers? It may not be worth a full upvote to everybody, but a downvote? The answer is useful... $\endgroup$ – Lukas Rotter Aug 28 at 19:12
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    $\begingroup$ @LukasRotter Thanks - you're right, there have been a lot of answers downvoted lately without justification. All very odd :) We were even encouraged by the OP on this puzzle to post partials - which is very common for this puzzle type because with serial ciphers it's often very hard to make progress through more than one step at a time. Anyway, hopefully it might actually get the ball rolling and help someone to spot the next key... $\endgroup$ – Stiv Aug 28 at 19:15
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    $\begingroup$ I figured out the next step. But I'm so horrible at cryptic clues that there's no point to continue trying :) So there you go: rot13(EBG13 gur grkg arkg gb gur svefg yvar, "FOU" -> lbh trg "SBH". Nccraq gung gb gur xrl, fb "IVTRARERSBH", qrpelcg ntnva, lbh trg nabgure pelcgvp pyhr: "TENAQCNF PNYPHYNGVBA UVQ CERFFHER DHNAGVSVRE") $\endgroup$ – Lukas Rotter Aug 28 at 19:34
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    $\begingroup$ @LukasRotter Nice work :) I think I can see what it means too... Will add it in with credit, thanks. $\endgroup$ – Stiv Aug 28 at 19:42
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    $\begingroup$ Next key is rot13(praqenef[wcd]) yielding rot13(N ABGR VF ERGHEAVAT HARAQVAT UVTU CVGPU RQ ANZR ZRNAVAT IVIVQ IBJ) $\endgroup$ – Lukas Rotter Aug 28 at 21:20

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