163 checkout
No three-dart checkout
163 is one of the bogey numbers in darts: it cannot be checked out with three darts.
Why can't you check out 163?
The highest three-dart checkout is 170 (Treble 20, Treble 20, Bull). Below that, a handful of scores can't be reached with two scoring darts and a double: 169, 168, 166, 165, 163, 162 and 159. These are the bogey numbers. 163 is one of them.
On 163, you aren't trying to finish this visit. The aim is to score well and leave yourself a straightforward double next time.
What to throw on 163
A sensible visit is Treble 20, Treble 20, Single 3, which leaves 40. That is a one-dart finish on Double 20.
If the first two trebles go well but the third dart strays, look for any score that leaves an even number of 40 or below, or one of the popular two-dart finishes such as 100, 80 or 60.