| Solution #1 Symmetries: Sym(D+) Orthodox cover |
| Solution #2 Symmetries: Sym(H) Expandable! Left: 1, Up: 0, Right: 0, Down: 0. Max area: 20 |
| Solution #3 Symmetries: Sym(V) Strict centrally strong set Expandable! Left: 0, Up: 0, Right: 0, Down: 1. Max area: 20 |