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.