Problem · problem
Moving sofa problem
Gerver's 1992 sofa, bounded by 18 curve sections, has area about 2.2195. In November 2024 Jineon Baek posted a proof that Gerver's sofa is optimal. Marked partial here until the proof completes review. That makes it a good candidate for a formal check.
Posed 1966, Leo Moser.
What would settle it
Lean statement in formal-conjectures
Sources
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