The encoding of FRIDAY necessitates understanding the transformation applied to MONDAY, which resulted in NPOEBZ. The encoding rule for MONDAY involves advancing each letter one position in the alphabet:
M advances to N
O advances to P
N advances to O
D advances to E
A advances to B
Y advances to Z
Applying this identical encoding principle to FRIDAY by advancing each letter one position yields:
F advances to G
R advances to S
I advances to J
D advances to E
A advances to B
Y advances to Z
Consequently, FRIDAY is encoded as GSJEBZ. The accurate coded form is GSJEBZ.