If you watch professional golf on TV or you even play golf occasionally, you probably have seen a golf scorecard littered with circles and squares on it, and you've probably wondered what those shapes mean in golf.
Golfers use circles and squares on a scorecard to indicate their scores against par, giving them an easy way to tally up their score instead of adding the numbers together.
A circle around a number on a scorecard indicates a score under par. So, for a birdie, a player puts one circle around the score. For an eagle, a player puts two circles around the score. And in the event of the very rare albatross (incorrectly called a double eagle), a player puts three circles around the score.
A square around a number on a scorecard indicates a score over par. So, for a bogey, a player puts one square around the score. For an double bogey, a player puts two squares around the score. And it goes on like that.
This way, instead of adding numbers to get a score, a golfer just has to keep track of a count that starts at zero. The idea of to have more circles than squares on the card. Then, with that number at the end of nine holes, a player can add that number to the par for the side and get their nine-hole score.
Circles and squares on the scorecard making scoring in golf easier.