Thue, 100 bytes
@::=:::
N::=X
S::=X
E::=X
W::=X
aX,::=b
aXX,::=a
bX,::=a
aX.::=~1
bX.::=~1
a.::=~1
bXX,::=~0
::=
a@.
SuperJedi224
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