The game has three parts:
1) Shanghai 10-15 – Three darts on each number
2) Doubles 1-20+BULL – One darts on each
3) Shanghau 16-20 – Three darts on each number
If you hit Shanghai (1 single + 1 double + 1 treble) you get a Bonus of 100 points. On the doubles round you get 50 points for each double and a bonus of 50 points for BULL
The more you use it – the more you use you will get from the statistics.
And don’t forget, tracking your practice makes it more profitable and more fun!