Removed no longer needdada

Help!
1

removed no longer need

2

In doExplore/5

doExplore(X,Y,D,L, Sequence):-
   \+target(X,Y), 
   append(L, [visited(X,Y)], C),
   append(Sequence, [turnright], S),
   turnright(X,Y,D,L,S).

I see

append(L, [visited(X,Y)], C),

but then what happens with C?

Since variables in Prolog are immutable you have to pass along the new variable C.

4

Thanks for pointing it out. I’m not sure why if I pass in with C, it won’t even work. But if I pass in L, it works in some cases

8

Sorry which part or in what way should I reformat it?