Erdős Problem #827
OPENdatabase updated 2025-08-31
No proof or disproof is known, and it isn't known whether a finite computation could settle it.
What the community database records, not our verdict. erdosproblems.com no longer shows statuses (why).
Prizenone
Topicsgeometry
Statement in Leannot yet
Solution in Leanno
Original pageerdosproblems.com/827
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Live page status OPEN (last edited 11 May 2026); “Currently working on this problem” lists ligma and SamKorsky, so the no-collision rule requires stopping.
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