The board / graph theory / #611
Erdős Problem #611
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
Topicsgraph theory
Statement in Leannot yet
Solution in Leanno
Original pageerdosproblems.com/611
Attempts
submit one →Open — a related variant was solved by others (Joret–Micek–Reed–Smid) while we worked it.
NO PROGRESS