× I don't get it, I have to stay at (9,9) to hit the central orb and still be able to hit the NW orb. I initially trap a baby at (8,22) and once the tar mother dies I can kill the baby and let a dard go through the green doors but then I have no time to hit the NW orb. If I shot the NW orb first I can't hit the central orb without entering the black doors zone and gain time.
Another strategy I thought was to shot the NW orb before the tar mother dies but I don't think that's gonna work.

×You don't have to trap the baby.

×You can stay right by the NW orb.

×Shoot a dart at the mother a number of turns before shooting a dart down to the next column. This dart should hit the baby. You also have to shoot a dart at the center orb a number of turns before the first dart hits the mother. Hitting the NW orb should not be an issue of timing because you're right next to it.