Bowling Scoreboard

10-pin-bowlingThe aim of this challenge is to create a scoreboard for a game of ten-pin bowling. It will be used to automatically calculate the total score of a player as they progress through the ten rounds of the game.

The scoring system in a game of ten-pin bowling is fairly complex to understand. Check the link provided below to fully understand the scoring system before attempting to complete this challenge:

Ten-pin Bowling – Scoring System:
https://en.wikipedia.org/wiki/Ten-pin_bowling#Scoring

World Bowling Scoring

The World Bowling scoring system—described as “current frame scoring”—awards points as follows:

  • strike: 30 (regardless of ensuing rolls’ results)
  • spare: 10 plus pinfall on first roll of the current frame
  • open: total pinfall for current frame

The maximum score is 300.

World Bowling scoring is an easier scoring system as the traditional scoring system described below. It is thought to make bowling easier to follow than with traditional scoring, increase television viewership, and help bowling to become an Olympic sport.

Traditional Scoring

In general, one point is scored for each pin that is knocked over. So if a player bowls over three pins with the first shot, then six with the second, the player would receive a total of nine points for that frame. If a player knocks down nine pins with the first shot, but misses with the second, the player would also score nine. When a player fails to knock down all ten pins after their second ball it is known as an open frame.

In the event that all ten pins are knocked over by a player in a single frame, bonuses are awarded.

BowlingstrikeA ten-pin bowling scoresheet showing how a strike is scored
  • Strike: When all ten pins are knocked down with the first ball (called a strike and typically rendered as an “X” on a scoresheet), a player is award ten points, plus a bonus of whatever is scored with the next two balls. In this way, the points scored for the two balls after the strike are counted twice.
Frame 1, ball 1: 10 pins (strike)
Frame 2, ball 1: 3 pins
Frame 2, ball 2: 6 pins
The total score from these throws is:

  • Frame one: 10 + (3 + 6) = 19
  • Frame two: 3 + 6 = 9
TOTAL = 28

Two consecutive strikes are referred to as a “bakfast”. Some locations still call it a “Hambone” even though that term has been changed to mean 4 strikes in a row by announcers on television. (Four strikes in a row is also referred to as a “Llama.”)

A double’s pinfall is:

Frame 1, ball 1: 10 pins (Strike)
Frame 2, ball 1: 10 pins (Strike)
Frame 3, ball 1: 9 pins
Frame 3, ball 2: 0 pins (recorded as a dash ‘-‘ or ‘0’ on the scoresheet)

The total score from these throws is:
Frame one: 10 + (10 + 9) = 29
Frame two: 10 + (9 + 0) = 19
Frame three: 9 + 0 = 9

TOTAL = 57

Three strikes bowled consecutively are known as a “turkey” or “triple”.

A turkey’s pinfall is:

Frame 1, ball 1: 10 pins (Strike)
Frame 2, ball 1: 10 pins (Strike)
Frame 3, ball 1: 10 pins (Strike)
Frame 4, ball 1: 0 pins (Gutterball)
Frame 4, ball 2: 9 pins

The total score from these throws is:
Frame one: 10 + (10 + 10) = 30
Frame two: 10 + (10 + 0) = 20
Frame three: 10 + (0 + 9) = 19
Frame four: 0 + 9 = 9

TOTAL = 78

Longer strings of strikes are called by various names, including “-Bagger” (Four Bagger), “Llama” (Four consecutive), and “-Pack” (Six Pack) depending on local use, equipment, and exposure to the sport. Recently, the event of bowling four consecutive strikes has also been called a “hambone”.Six strikes and nine strikes in a row can also be referred to “Wild Turkeys” and “Golden Turkeys” respectively. Any string of strikes starting in the first frame or ending “off the sheet” (where all of a bowler’s shots from a certain frame to the end of the game strike) are often referred to as the “front” or “back” strikes, respectively (e.g., the “front nine” for strikes in frames 1–9, or the “back six” for strikes in frames 7, 8, and 9 with a turkey in the tenth). A “perfect game” or 12 strikes in a row is also rarely referred to as the “Thanksgiving Turkey”. A “Clean Game” is a game with strikes or spares in every frame (not counting bonus balls).

A small number of bowling fans have recognized that naming each strike in a consistent manner adds to the enjoyment and excitement of the game. Based on this, a growing number of bowlers subscribe to the “Duck, Duck, Turkey” method of titling consecutive strikes. In keeping with the tradition that the third consecutive strike is called a “Turkey,” every third strike references turkeys and all strikes under this method have been named after birds as follows: Strike 1 – Duck; Strike 2 – Duck; Strike 3 – Turkey; Strike 4 – Goose; Strike 5 – Chicken; Strike 6 – Turducken; Strike 7 – Penguin; Strike 8 – Flamingo; Strike 9 – Turkey Vulture; Strike 10 – Woodpecker; Strike 11 – Eagle; Strike 12 – Turkey Hawk.

A player who scores multiple strikes in succession would score like so:

Frame 1, ball 1: 10 pins (strike)
Frame 2, ball 1: 10 pins (strike)
Frame 3, ball 1: 4 pins
Frame 3, ball 2: 2 pins
The score from these throws are:

  • Frame one: 10 + (10 + 4) = 24
  • Frame two: 10 + (4 + 2) = 16
  • Frame three: 4 + 2 = 6
TOTAL = 46
The most points that can be scored in a single frame is 30 points (10 for the original strike, plus strikes in the two subsequent frames).
A player who bowls a strike in the tenth (final) frame is awarded two extra balls so as to allow the awarding of bonus points. If both these balls also result in strikes, a total of 30 points (10 + 10 + 10) is awarded for the frame. Some people call it “striking out”, since three strikes in baseball equals an out.
BowlingspareA ten-pin bowling scoresheet showing how a spare is scored
  • Spare: A “spare” is awarded when no pins are left standing after the second ball of a frame; i.e., a player uses both balls of a frame to clear all ten pins. A player achieving a spare is awarded ten points, plus a bonus of whatever is scored with the next ball (only the first ball is counted). It is typically rendered as a slash on scoresheets in place of the second pin count for a frame.
Example:

Frame 1, ball 1: 7 pins
Frame 1, ball 2: 3 pins (spare)
Frame 2, ball 1: 4 pins
Frame 2, ball 2: 2 pins
The total score from these throws is:

  • Frame one: 7 + 3 + 4 (bonus) = 14
  • Frame two: 4 + 2 = 6
TOTAL = 20

A player who bowls a spare in the tenth (final) frame is awarded one extra ball to allow for the bonus points.

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Solution...

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