153 checkout
In short
153 checks out in three darts under double out: T20, T19, D18, for 60 + 57 + 36. If the treble 20 lands in the single 20, 133 is left, out of reach with two darts left: T20, T19 leave 16, so D8 on the next visit. Should the second dart, at the treble 19, drop into the single 19, 74 is left, out of reach with the last dart: T14 leaves 32, so D16 on the next visit. With only two darts in hand, T20, T19 leave 36, so D18.
T20
60
T19
57
D18
36
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 20 → single 20
133 left, set up 16, so D8 on the next visit
T20
60
T19
57
treble 19 → single 19
74 left, set up 32, so D16 on the next visit
T14
42
double 18 → single 18
18 left, on the next visit
D9
18
With fewer darts in hand
The finish is then out of reach: these darts set up the next visit.
Two darts
leaves 36, so D18
T20
60
T19
57
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
Same route as under double out
Neighbouring scores
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