FIVE BACK.
The pins are set as shown in the diagram.
Three balls (not exceeding 6 inches in size) are bowled in each inning.
Should a left-handed bowler be bowling, the second quarter pin can be set up on the left quarter spot.
Strikes and spares count five each.
No penalties are attached. Dead wood must be removed. Any pins knocked down through dead wood remaining on the alley cannot be placed to the credit of the player.
Ten innings constitute a game.
The maximum is 150.