I'm relatively new to the world of rock climbing, having been bouldering at a gym for a few months. I'm planning on checking out a natural bouldering area (that is, one made of real naturally occurring stone) nearby. This is my first exposure to climbing outdoors.
Mountain Project and local printed guides sort problems in a way that I don't understand. They can be 'left-to-right' or 'right-to-left'. What does this mean?