EDIT; Finally!!!! I got it!
Well for those who are still hunting the Farfetch'd, i thought i would save you guys time. If you guys dont want to struggle that much, then you can click on my attachments. Theres two of them, so the one thats said "Player" is the one that the player must go in order to complete this task, The farfetch'd one is just to show how the farfetch'd must go in order. And those who don't want the spoiler, then don't bother. GOOD LUCK!