X01 RULES

The object of X01 is to lower your score from
an initial value of X01 to exactly 0.  Points
are lost each throw of a player's turn by
subtracting the value of the throw from the
player's previous score.

SCORING

All board slots are in effect in X01 games,
and throw values follow general darts scoring
rules.  E.g., a double 20 (D20) is worth 20 x
2 = 40 points.  A triple 17 (T17) is worth 17
x 3 = 51 points.  An outer bullseye is worth
25 while an inner bullseye is worth 50
points.

GAME OPTIONS

There are two options for X01 games: starting
score and in/out requirements.  The starting
score can be any of 301, 501, 601, 701, or
1001.  The in/out requirements denote the
throw required for a player to start scoring
(the in requirement) or win the game by
reaching a score of exactly zero (the out
requirement).

IN REQUIREMENT

A requirement of "double-in" means that a
player only starts scoring points when a
throw lands in any slot on the board in the
doubles ring.  That is, once a player throws
a double, they score with that throw as well
as subsequent throws.

A requirement of "single-in" means that the
first throw that hits any board slot causes a
player to start scoring.

OUT REQUIREMENT

A requirement of "double-out" means that a
player must reach a final score of exactly
zero while also throwing a double.  For
instance, if a player has a score of 22 in a
double-out game, a throw of D11 would reach
zero exactly since 11 x 2 = 22.

As a special note, it is common to allow
players in a double-out game to go out on a
bullseye (not just a double bullseye).  We've
adopted this convention in our game.

SETTING UP X01 GAMES

In the "Game Options" section of the X01 game
setup screen, you can set the starting score
and in/out requirements.  The default X01
setup is 501, single-in, double-out.  This
setup is quite popular in professional
tournaments.

WINNING

The first player to reach a score of EXACTLY
zero wins.  If for instance a player has a
score of 5 and throws a 7 in a single-out
game, the player "busts" since his score
would be -2 which is less than 0.

BUSTING

When a player busts, they regain any points
lost in the turn and immediately lose the
remainder of the throws in their turn.

GETTING OUT MORE EASILY IN DOUBLE-OUT GAMES

At the bottom of the scoreboard on a player's
side will be a possible sequence of throws
that would reach a score of exactly zero from
the player's current score.  Usually this
information is either memorized or provided
by an "out chart." We've simply integrated a
handy "smart out chart" for you in this game.

FUN FACTS

The highest score possible in a turn in an
X01 game is 180 (T20 T20 T20).

A "perfect game" of 501 is achieved by only 9
total dart throws!  The sequence is:

T20 T20 T20 
T20 T20 T20 
T20 T19 D12

This has been achieved in a number of
professional dart tournaments, much to the
delight of the cheering crowds!
