
Game objective: reduce your score from 501 to exactly zero.
This is the classic darts format. During each visit you throw up to 3 darts, with every scored point deducted from your remaining total.
Double Out: the final dart must hit a Double. The 50-point Bull is also a valid finishing dart.
Bust: if you go below zero, leave 1 point or reach zero without finishing on a Double, the entire visit is cancelled.
The game ends after a valid checkout. Your training result reflects the number of darts used and your 3-dart average.