Darts in hand
- With three darts: double 17.
- With two darts: double 17.
- With one dart: double 17.
If the first dart misses
The only dart is the double itself. Drop into the single 17 and 17 is left over — that is an odd number that needs two darts.
The finishing double
The route finishes on double 17. An odd double does not halve: a single leaves an odd number that needs a single and a double, so it costs at least one extra dart.
Other ways out
These routes add up too. Players pick between them by the trebles they trust and the double they like to finish on.
- 18 D8single 18, double 8
- 2 D16single 2, double 16
- 14 D10single 14, double 10
Practise on the board
Below is a full leg of 301 against the computer. Score your way down, and when a finish comes up, Hint shows the route the Expert would take.