Penny, Sheldon, Howard and Leonard are chilling. Sheldon comes up with an idea to play a dartboard game. Like always, he has his own rules. He brings a weird dartboard from his room, sets the bullseye on fire and hangs it on the back of the door. He then announces: Score exactly 15 points to win the game.
No one has any clue about the points system, so they just go with it.
Penny goes first but doesn't hit any bullseye. She still scores 21 Points. Leonard goes next and manages to hit a bullseye on his first attempt. He goes on to score 16 Points.
It's Howard's turn now and he has hit two darts already when, suddenly, he realizes what's going on and hits the last dart at the right place to win the round.
Can you tell me where Howard hits the last dart?