Some abilities affect adjacent Locations — any that physically touch, including diagonally. Because the rear row (5–7) sits centered under the forward row, neighbors aren’t always obvious.
1
2
3
4
5
6
7
Location 3 — a unit in play here…
…is adjacent to Locations 2, 4, 6, and 7
Not adjacent: Locations 1 and 5
Extra Locations touch nothing.

