Forgot to post this.
I continued my failed work with simple algorithms a bit, this time with Ruhele.
First is setting R equal to every letter and the sequence that follows.
Second is displacement by near-by keys.
A third idea I had was to plug these into that type game nifflas made a while ago, but I never got around to it.
R U H E L E
----------------
A D Q N U N
B E R O V O
C F S P W P
D G T Q X Q
E H U R Y R
F I V S Z S
G J W T A T
H K X U B U
I L Y V C V
J M Z W D W
K N A X E X
L O B Y F Y
M P C Z G Z
N Q D A H A
O R E B I B
P S F C J C
Q T G D K D
R U H E L E
S V I F M F
T W J G N G
U X K H O H
V Y L I P I
W Z M J Q J
X A N K R K
Y B O L S L
Z C P M T M
----------------
R U H E L E
----------------
E Y G W K W
T I J R A R
As you can see, they both failed.
No simple letter-swap algorithm exists. (English)
Displacing with near-by letters isn't complete, though things get confusing when you go vertical instead of horizontal. It would seem this is also incorrect.
I'll try more complex algorithms soon
