Looking at the source of the #ingressportalsurvey: Experiment Concludes on Wednesday post, we find these codes:
The reversed string doesn’t give us a nice keyword to work with in the middle. There might be another step involved.
The prefix is a bit too large, though.
In a recent cipher, the single U in the prefix expanded to ‘YOU’. This is the other way around, so SEA becomes C.
Running atbash against the code gives us:
There is a keyword in the middle (
react) with a weird set of characters surrounding it as the prefix and suffix.
Many of those characters are
x, which could be interpreted as Roman numerals.
v2 = 5+2 = 7
0v0 = 0+5+0 = 5
2v = 5-2 = 3
1x = 10-1 = 9
5 = v
With 4 valid digits and lots of lowercase letters present, we should try transpositions first.
Looking at the first column, we see that all letters from a to j are used exactly once.
Ordering alphabetically we get a valid prefix and suffix in the second column:
Still missing a keyword, a common trick is to use a keyword that somehow relates to what has been done in previous steps, such as mirroring or – in our case – ordering: