Meaning: The game concludes when a player reaches the end of the board.
Choice of Words: The word "game" refers to the activity being played. "Ends" means to come to an end or conclusion. "When" is used to indicate the time at which something happens. "Player" refers to an individual participating in the game. "Reaches" means to arrive at or attain something. "End" refers to the final point or conclusion of something.