================ American Ten Pin Bowling ================
Ten-pin bowling is a sport in which a player, or "bowler" rolls a bowling ball down a lane with the objective of scoring points by knocking down as many pins as possible.
- Should allow to make rolls.
- Should not allow illegal
- Should keep score.
- Should score a spare.
- Should score a strike.
- Should score a spare and strike in consecutive frames correctly.
- Should score consecutive strikes correctly.
- Should score gutter game correctly.
- Should score a perfect game correctly.