1. Aim of the game
Each player starts with 501 points. The
number of points collected while hitting a board with a dart is subtracted from
the given player's points. The winner is the player who scores exactly 0 points
that way.
It is a double out game, which means that
players must hit a double that makes their score exactly zero to win the game.
2. Bust
In case of a bust the player's score from
the previous turn is restored. There is bust if one of the following events
arise:
The player scores more points in the active
turn, than his current score (subtracting would result in a negative score)
The player has 1 point after subtracting
(you cannot score 1 with double out)
The player has 0 point after subtracting
but violates the double-out rule
3. End of the game
Players continue playing until one of them
scores 0 points in total. The player who does so, wins the game.
If none of the players gets to zero in 20
turns, the player with the lower point wins.
If the scores are equal after 20 turns, the
game will continue for another possible 10 turns.
During these extra turns, the player who
gets to zero obviously wins. A player with lower score any time after the 20th
turn also wins the match.
If the scores are
equal after 20+10 turns, the match will end in a draw.