Each career path has its own strengths and weaknesses, and scenarios unique to the class because of the skills associated with it. Each class also has its own distinct way to solve various in-game puzzles, which encourage replay: some puzzles have up to four different solutions. For instance, if a door is closed, instead of lockpicking or casting an open spell, the fighter can simply knock down the door. The magic user and the thief are both non-confrontational characters, as they lack the close range ability of the fighter, but are better able to attack from a distance, using daggers or spells. An example of these separate paths can be seen early in the first game. A gold ring belonging to the healer rests in a nest on top of a tree; fighters might make it fall by hurling rocks, thieves may want to climb the tree, while a magic user can simply cast the fetch spell to retrieve the nest, and then, while the fighter and magic user return the ring for a reward, the thief can choose between returning or selling the same ring in the thieves' guild (which is not available for those not possessing the "thieving" skills). It is also possible to build, over the course of several games, a character that has points in every skill in the game, and can therefore perform nearly every task.