This is more or less variations on a theme.

I usually play this just 20-15 then bull (the red bit, singles don't count). Sometimes I'll include 14-10 as well.

I throw 20, 19, 18. If any are hit I add the next lower to the end. Let's say I hit the T18 on the first round, my next would be 20,19,17.

If you get down to having just two targets, just alternate between them.

i.e. T18, bull, T18...... bull, T18, bull. If you have one left, throw at it until you hit it.

This should only take a few minutes, but I tend to get stuck on a single number sometimes.

Another I use is throwing at each 'Cricket' triple 20-15, of course, until I get 9 marks total. Starting at 20 and not moving on until I have all 9 marks.

Bull requires 6 marks.

For a more challenging version, subtract 1 each time you miss a segment. If you miss with all 3 darts, subtract another 2 (5 total). Again, you don't move on until you have 9. If you get to -9 and don't think you'll make it up, stop counting (or at least stop subtracting) and move on once you get 9 marks/6 for bull.

I sometimes also play RTW on doubles using the same 1 dart per routine as in the first routine.

I usually play this just 20-15 then bull (the red bit, singles don't count). Sometimes I'll include 14-10 as well.

I throw 20, 19, 18. If any are hit I add the next lower to the end. Let's say I hit the T18 on the first round, my next would be 20,19,17.

If you get down to having just two targets, just alternate between them.

i.e. T18, bull, T18...... bull, T18, bull. If you have one left, throw at it until you hit it.

This should only take a few minutes, but I tend to get stuck on a single number sometimes.

Another I use is throwing at each 'Cricket' triple 20-15, of course, until I get 9 marks total. Starting at 20 and not moving on until I have all 9 marks.

Bull requires 6 marks.

For a more challenging version, subtract 1 each time you miss a segment. If you miss with all 3 darts, subtract another 2 (5 total). Again, you don't move on until you have 9. If you get to -9 and don't think you'll make it up, stop counting (or at least stop subtracting) and move on once you get 9 marks/6 for bull.

I sometimes also play RTW on doubles using the same 1 dart per routine as in the first routine.