## Need Help with a Substitution Code

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msanon25533
Posts: 1
Joined: Fri Nov 06, 2015 3:56 am UTC

### Need Help with a Substitution Code

Hi Guys, I'm new to the forums, so hopefully this is the right place to put this!
I received the following code, with the information that every fourth sequence of two is to be removed, and each letter is represented by two random symbols. I have put the different symbols into different letters in order to solve with a mode of substitution:
AHABIJIJKLAMANBOKEANAJ
AINPFGAQ
I have also been informed that each line is a sentence.
Any help is greatly appreciated!

PTGFlyer
Posts: 12
Joined: Wed Jan 13, 2016 6:15 pm UTC

### Re: Need Help with a Substitution Code

I only see three sequences of two.

Pied typer
Posts: 19
Joined: Fri Mar 11, 2016 1:59 am UTC
Location: [i]somewhere[/i]

### Re: Need Help with a Substitution Code

PTGFlyer wrote:I only see three sequences of two.

Spoiler:
Maybe "sequences of two" means letters grouped two at a time, not doubled letters. Thus we get:
A
HABIJIJKLAMANBOKEANAJ
AINPFGAQ
Which is:
ABBCCAABCAEF
HABIJILAMANBOKNAJ
AINGAQ

AINGAQ
Now, given that every line is a sentence, I can conclude that this is a single word, as there aren't any sentences one can make using two one-letter words. This information is extremely helpful, as there is only one sentence construction in which a one-word sentence is grammatically correct: imperatives. Thus the third line is a three-letter base form action verb where every letter is unique, and no direct object is required. I'm not really feeling up to finding a list of these, though, so I'm going to ask a different question: if every letter is represented by two symbols, then why does the second line have an odd number of symbols?
Hey, is my flairTM small enough for here?

Also, go here:
http://stackoverflow.com/q/11227809/6388243

jestingrabbit
Factoids are just Datas that haven't grown up yet
Posts: 5959
Joined: Tue Nov 28, 2006 9:50 pm UTC
Location: Sydney

### Re: Need Help with a Substitution Code

Spoiler:
They could be represented by adjacent letters, which would make the last line 5 symbols, not 3. But I'm not good at these, so...
ameretrifle wrote:Magic space feudalism is therefore a viable idea.

DanD
Posts: 261
Joined: Tue Oct 05, 2010 12:42 am UTC

### Re: Need Help with a Substitution Code

Pied typer wrote:
PTGFlyer wrote:I only see three sequences of two.

Spoiler:
Maybe "sequences of two" means letters grouped two at a time, not doubled letters. Thus we get:
A
HABIJIJKLAMANBOKEANAJ
AINPFGAQ
Which is:
ABBCCAABCAEF
HABIJILAMANBOKNAJ
AINGAQ

AINGAQ
Now, given that every line is a sentence, I can conclude that this is a single word, as there aren't any sentences one can make using two one-letter words. This information is extremely helpful, as there is only one sentence construction in which a one-word sentence is grammatically correct: imperatives. Thus the third line is a three-letter base form action verb where every letter is unique, and no direct object is required. I'm not really feeling up to finding a list of these, though, so I'm going to ask a different question: if every letter is represented by two symbols, then why does the second line have an odd number of symbols?

Spoiler:
The question would be does the count restart at the beginning of each line. In which case:

AHABIJIJKLAMANBOKEANAJ
AINPFGAQ
Resulting in:
AB BC CA AB CA EF
AH AB IJ KL AM AN KE AN AJ
AI NP FG

This gets rid of the odd number issue.

The other concern is that, likely, spaces are not coded for. Therefore that last sentence could be a two word statement: "I am" "I do", etc. That being said, it is very likely a single word. If this were a longer text, it would be very susceptible to statistical analysis (I would guess AB is either a vowel or a t) but I'm not sure how to proceed based on the available data.

Pied typer
Posts: 19
Joined: Fri Mar 11, 2016 1:59 am UTC
Location: [i]somewhere[/i]

### Re: Need Help with a Substitution Code

jestingrabbit wrote:
Spoiler:
They could be represented by adjacent letters, which would make the last line 5 symbols, not 3. But I'm not good at these, so…

Spoiler:
I think you're right about that, actually. Looking over DanD's post, I realized that if the last line is merely three letters, then it doesn't share any letters with the rest of the code, so it would be impossible to distinguish between "run" and "die".

That creates a problem, though, as if you think about the encoding scheme, every letter must have many encoding methods.
Hey, is my flairTM small enough for here?

Also, go here:
http://stackoverflow.com/q/11227809/6388243

DanD
Posts: 261
Joined: Tue Oct 05, 2010 12:42 am UTC

### Re: Need Help with a Substitution Code

Pied typer wrote:
Spoiler:
jestingrabbit wrote:[spoiler]They could be represented by adjacent letters, which would make the last line 5 symbols, not 3. But I'm not good at these, so…

I think you're right about that, actually. Looking over DanD's post, I realized that if the last line is merely three letters, then it doesn't share any letters with the rest of the code, so it would be impossible to distinguish between "run" and "die".

That creates a problem, though, as if you think about the encoding scheme, every letter must have many encoding methods.

Spoiler:
Every letter would be encoded by a single letter, with the preceding letter determining which single letter. In the reductionist case, AB would be the same as BB would be the same as CB, etc. Realistically, you'd probably shift your index. Given that this was apparently random symbols originally, not alphabetic, there's no particular reason to assume the index shift would be linear, and if that's the case, I don't believe it's solvable without more information.

Also relevant is that you would still need 26 unique symbols to represent the full alphabet (not all symbols might be used in this text, admittedly) We have 17 here. Not sure if that means anything.

Quixote
Posts: 21
Joined: Wed May 06, 2015 9:14 pm UTC

### Re: Need Help with a Substitution Code

I would like to see the symbols. There might be a conscious or unconscious clue in the choice of symbols.