Black Hole Diplomacy II (rr09)
By Rob Nelson and Harry Drews
1. The 1971 Rules of Regular Diplomacy are to be used with the following changes.
2. The rules of Black Hole Diplomacy I are to be used with the following addition.
3. Any province adjacent to a black-holed spaces becomes, by virtue of that black-holing, adjacent to any other province also bordering that black-holed province. However, two or more units may not exchange places across a black-holed province, as per the Rules of Regular Diplomacy.