Shut Down Maneuver Variants
1. Close off frontier planets with all of the space lanes to which they can connect.
2. Place your border planets too close to those of another player's territory for them to connect.
3. Do not develop past Phenomona discovered on your territorial borders.
4. Expand without moving much toward your rivals initially by extending all four possible space lanes from your Home System before exploring further outward.
#4 i just consider good practice. at least with 3 lanes if not all 4. #3 is also a good idea, but doesnt help as much unless you put blocking ships to force people to stop at the phenomena. even if it is foating people can connect to it and keep going into your home systems since only placing a new disk stops your movement, placeing new starlanes allows you to continue moving even at warp.