66 checkout

In short

66 checks out in two darts under double out: T14, D12, for 42 + 24. If the treble 14 lands in the single 14, 52 is left and still on: S20, D16. Should the second dart, at the double 12, drop into the single 12, 12 is left and still on: D6. With a single dart in hand, T14 leaves 24, so D12. Under straight out, where any segment can finish: T19, S9.

T14
42
D12
24
Double out

When a dart strays

A missed treble or double often drops into the single of the same segment, and a missed bull into the 25 around it. Here is what that leaves, and what comes next.

treble 14 → single 14
52 left, with the two darts left
S20
20
D16
32
double 12 → single 12
12 left, with the last dart
D6
12

With fewer darts in hand

The finish is then out of reach: these darts set up the next visit.

One dart
leaves 24, so D12
T14
42

Under the other checkout rules

Master out
finish on a double or a treble
Same route as under double out
Straight out
any segment can finish
T19
57
S9
9

Neighbouring scores

Let DartSync work out your finish

In a game, the scoreboard shows the route every visit, following the checkout rule you chose.

Play a game of 501