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Hi all, I'm posting these ciphers because I've spent a few hours gnawing on them without any progress.

The first puzzle consists of these three lines of numbers:

1937462738174637

3627498473652164

3746981711317627

I'm guessing that the final string of letters is probably a multiple of three, but that's all I've got.

Note: this first puzzle was posted on this forum last year in this thread: however, it remained unsolved.

The second puzzle is IMO, harder, as it is just a string of letters:

efsbqfsqupofsbvpz

It's not a regular cryptogram, that's for sure. The letter frequency is strange, but that's as far as I've gotten, which is why I'm asking for help!

A few friendly pointers, or an outright solution would be most appreciated.

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The solution is to replace every letter with the letter before it alphabetically and then read the message backwards: so efsbqfsqupofsbvpz becomes deraperptonerauoy and then revesed it says, "you are not prepared"

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The solution is to replace every letter with the letter before it alphabetically and then read the message backwards: so efsbqfsqupofsbvpz becomes deraperptonerauoy and then revesed it says, "you are not prepared"

Very nicely done. Would you mind describing your approach/thought process when solving this cryptogram?

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I wish I could say that I had some ingenious methodology, but in reality I just looked at it as a possible letter substitution/shift, saw that a shift of 1 gave a good constant to vowel ratio and then realized that there were words spelled backwards as I was decrypting.

Basically, I got lucky :rolleyes:

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