Summarise a Board Game's Rules Before You Teach It at the Table

You own it and you have read the rulebook and it made sense at the time and now you are sitting opposite three people who have never played and you cannot quite remember what the point is. Teaching a game badly in the first ten minutes tends to define the whole session. This gives you the core goal, the five rules that matter before turn one, the things new players almost always get wrong, and the right order to explain things so the first turn starts rather than stalls.

I am about to teach a board game to people who have not played it and I want to explain it clearly without reading the rulebook at the table. The game is {GAME_NAME}. Give me: a one to two sentence summary of what players are trying to achieve, the three to five rules that are essential to understand before the first turn, any common misunderstanding of the rules that trips up new players, and the order in which to explain things so that the first turn happens quickly. Keep this at the level of someone who has never played and do not assume familiarity with the game's genre. Format it as a concise reference I can read through once before sitting down.