Hard

Hard tasks have a difficulty of 20. These actions require a good amount of expertise, training, and natural ability to pull off well, and are only accomplishable through extraordinary luck otherwise. Examples: carving a path through a densely overgrown jungle for eight hours without rest, assembling a clockwork pocketwatch, digging a barbed arrowhead out of a wound without causing more damage, remembering the name of every capital city of every country in the world.