𝐂𝐨𝐝𝐞𝐬 𝐚𝐧𝐝 𝐂𝐢𝐩𝐡𝐞𝐫𝐬

𝐍𝐲𝐜𝐚𝐧𝐢𝐱 𝐂𝐨𝐝𝐞

[Invented by: Heartstopper Necrolyte]

A-D
B-C
C-B
D-A
E-H
F-G
G-F
H-E
I-L
J-K
K-J
L-I
M-N
N-M
O-R
P-Q
Q-P
R-O
S-V
T-U
U-T
V-S
W-Z
X-Y
Y-X
Z-W

If you would notice, the letters are just reserved in blocks. A-D are reversed. E-H are reversed. I-L are reversed. M and N are switched. O-R are reversed. S-V are reversed. And also, W-Z are reversed.
Example: DARK PEAK=ADOJ QHDJ

~~~CTTRO