The board / graph theory / #736
Erdős Problem #736
NOT PROVABLEdatabase updated 2025-10-01
Open in general, but there are models of set theory in which it is false — so it can't be proved from the usual axioms (ZFC) alone.
What the community database records, not our verdict. erdosproblems.com no longer shows statuses (why).
Prizenone
Topicsgraph theory, chromatic number
Statement in Leannot yet
Solution in Leanno
Original pageerdosproblems.com/736
Attempts
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