Solution of scoring rules of dart target

The scoring rules for darts are as follows:

There are 20 fan-shaped areas on each dart target, marked with corresponding scores. The red area in the middle is "bull's-eye", with a maximum score of 50 points. There is a green space around, called "The Green", with a score of 25 points. The scores of the remaining 18 outer ring sectors decrease from 20 to 1.

In addition, the area marked by a thin line between the outer ring and the inner ring on each dart target is called "double". Any "double" area hit by a dart will double the score. Similarly, the "bull's-eye" in the center of the dart target also has a peripheral thin line marking area, which is called "triple". If the dart hits this area, the score will be tripled.

In the competition, the player's score can be calculated by the cumulative total score of three darts. Each player's score is recorded on the scoreboard, and the scores of different players need to be checked with each other. At the end of each round, players need to retrieve their darts, and the next player will continue the game.

As follows:

Darts/kloc-rose in Britain in the 0/5th century and became a necessary activity for people to relax in bars in the early 20th century. In 1930s, darts became more and more professional, and professional associations, professional competitions and a large number of professional masters appeared.

In the application of self-defense in ancient China, China has three kinds of darts. The first one is willow-shaped, and his technique is roughly the same as flying knife, with 90-degree direct flight, 180-degree spiral flight, 360-degree spiral flight and so on. The second kind is a dart with ears behind it, also called an ear dart.

The third kind of darts, as shown in figure 1, are called meteor darts, cross darts, four-star darts, square darts and blood moon darts in China, that is, Japanese shuriken Ninja darts. The sport of darts has a long history, which originated in Britain in the15th century.

According to records, the soldiers of the Roman Legion were sent to the distant British island by the Roman emperor, and the rainy British climate made it inconvenient for them to stay outdoors for a long time. So, in the shed, they shot arrows at targets made of oak cross-sections, which gradually developed into modern darts.

In other words, darts evolved from the 10 inch throwing weapon used by British archers in melee.

The third statement is related to specific historical figures. King henry vii of England is physically weak. Considering that hunting is dangerous and hard, he decided not to hunt any more. He made a short-handled dart gun and threw it at the cross section of the oak tree to achieve the purpose of fitness. Soon, the court ministers also fell in love with this sport and gradually spread to the people.