I joined a local darts league at my bar and a game we frequently played was 501. Part of the goal of 501 is to reduce the value 501 to 0 by subtracting the scores you hit on the dartboard. So if you were at 501 and you hit a 10, a 1 and a double 20, you would then have a score of 450 (501-10-1-2*20). Of course if you were a highly skilled player you would simply throw all three darts into triple 20 reduce your score by 180 and go back to your beer, but alas I am in need of some software-powered handicapping. Skilled here to me means you can more or less guarantee your precision within the radius of a triple area. It seemed to me that as you consider that radius of ones precision is greater the more novice they are, there may be more optimal areas to aim for on the board to on average secure the greatest possible score.
I built a simulation to explore this thought; It heatmaps the average score you could expect with a given radius of precision when aiming for that point on the board and the cross-hairs and annotates the best location to aim. Here is an animation of the radius starting very small where clearly triple 20 is the place to aim growing to my radius of precision identifying triple 7 as the best location for me to aim!
