This is a legacy website. See this page on my new website for current information.
Some news articles and web resources mentioning my work on the moving sofa problem and other topics. Sorted by time period and topic.

Image credit: Stephen Teeter
- (2024-2025) Articles discussing Jineon Baek's solution of the moving sofa problem:
- The Largest Sofa You Can Move Around a Corner. Richard Green, Quanta Magazine. February 14, 2025.
- Solving the Moving Sofa Problem. Andy Fell, UC Davis News, December 13, 2024.
- Wie Mathematiker über Sofas denken. Christian Meier, Süddeutsche Zeitung. June 4, 2025. (In German.)
- Mathe-News: Das Sofa-Problem wurde gelöst! DorFuchs YouTube channel, December 23, 2024. (In German.)
- Moving Sofa Problem Solved?!?! Interview with Dan Romik. Art Kalb's YouTube channel, December 4, 2024.
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Mathematicians have figured out the best sofa shape for moving around. Alex Wilkins, New Scientist, December 9, 2024.
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Mathematician solves the moving sofa problem. Bob Yirka, phys.org, December 11, 2024.
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Pivot! Mathematicians reveal how Ross Geller COULD have got his sofa up the stairs in iconic Friends scene. William Hunter, The Daily Mail, December 12, 2024.
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Mathematician Finally Solves Age-Old Moving Sofa Problem. Mike McRae, Yahoo! News, December 11, 2024.
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This 100-Page Proof Claims to Have Solved the World’s Most Frustrating Math Puzzle: What’s The Largest Sofa That Fits Around a Corner? Tibi Puiu, ZME Science, December 12, 2024.
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After More Than 50 Years, Math's "Sofa Problem" May Finally Be Solved. Katie Spalding, IFL Science. December 12, 2024.
- (2023) Discussion of my work on sphere packing:
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On Viazovska’s modular form inequalities by Dan Romik. Gil Kalai, Combinatorics and More, December 17, 2023
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- (2016-2017) Articles and blogs discussing my work on the moving sofa problem:
- Move the Couch! Kyung-Hwan Kim. Donga Science, April 24, 2017. (In Korean)
- De wiskunde van een sofa in de bocht . Alex van den Brandhof. NRC Handelsblad, April 15, 2017. (In Dutch)
- Why Mathematicians Cannot Solve the Problem of Moving Your Sofa. Avery Thompson. Popular Mechanics, March 24, 2017.
- The Moving Sofa Problem - Numberphile (video). Brady Haran. March 23, 2017.
- 3D printing inspires UC Davis prof to tackle tricky 'moving sofa problem'. By Tess, 3Ders.org, March 22, 2017.
- The science of sofas: Bizarre study reveals the most manoeuvrable couches for getting round tight corners (and says a DUMBELL shape is best). The Daily Mail, March 21, 2017.
- New twist on sofa problem that stumped mathematicians and furniture movers. Becky Oskin. Phys.org (republished from the UC Davis research blog Egghead). March 20, 2017.
- Romik's Ambidextrous Sofa. John Baez. Visual Insight, American Mathematical Society Blogs, December 15, 2016.
- Hammersley Sofa. John Baez. Visual Insight, American Mathematical Society Blogs, January 15, 2015 (updated July, 2016).