SCHWEITZER 1973 Problem 8
What is the radius of the largest disc that can be covered by a finite number of closed discs of radius in such a way that each disc intersects at most three others?
L. Fejes-Toth
Dataset text AI-MO AoPS. Quoted with source.
Solutions
No solution is on olymmath yet. Official and human solutions come first when they arrive. AI solutions come after them, with a label.
Similar problems
These problems have the most words in common with this statement.