Dart Game: Billiards

The object of Billiards is to score or fill every number from 20 to 1 in that order - either by hitting the number directly or through a combination of numbers. Target numbers are indicated in the display window and scored numbers are indicated by lighted cursor lamps on each player's Cricket panel. The cursor lamp registers each dart thrown, subtracting that number from the target number and moving the cursor to the position of the next number required to complete the target number. In addition, the special bounce-back feature keeps the cursor within the number field in the case of dart scores that exceed the amount required to satisfy the target number.

For Example:

Player 1 starts the game. The display window shows "20," indicating that Player 1 must score 20 in order to fill the first spot. Player throws the first dart and hits 5. The cursor then moves 5 spots.
The dart board automatically calculates the difference between 20 and 5 and moves the cursor to the "15" position, indicating that the player needs to score 15 to fill the target number. Player 1 throws a 17. The cursor then moves 15 steps and bounces back 2 spots to rest on the number " 18" position.
Now, the display shows that the player must hit "2" for the third throw. Player 1 throws and hits " 2." The cursor moves to the "20" spot and closes it out (See Figure 3). The display now shows "19," indicating that he/she has moved down one spot and must now hit 19. Because the player has thrown all three darts, the dart board will flash, indicating a change of player. The first player to close out all numbers from 20 to 1 wins the Billiards game.