giantish effort blue & Dal3a

blue your solve was very nearly right
in fact your images was very nice & the clearest
^_^
Dal3a
try again
i'm sure you will solve it
^_^

O.k
i'll tell you
what 's wrong?
the unique curves must be only on one direction
& your curve was on 2 different direction
المنحنى الوحيد يجب أن يكون في اتجاه واحد فقط ومنحناكم كانت في أتجاهين

keep going 4 both