What is the moving sofa problem? The 60-year maths puzzle may finally be solved
India Today
A geometry puzzle first posed in 1966 has baffled mathematicians for decades. Known as the moving sofa problem, it asks for the largest shape that can pass through an L-shaped corridor. Now a young mathematician, Jineon Baek, claims to have proven the long-suspected answer using pure mathematical reasoning.
A puzzle about moving a sofa around a corner might sound like a joke. But for nearly six decades, this deceptively simple question has challenged some of the world’s best mathematicians.
Now, a young researcher may finally have solved it.
Known as the moving sofa problem, the puzzle has fascinated mathematicians since the 1960s because it combines a simple everyday situation with extremely deep geometry.
After decades of guesses, simulations, and partial answers, a 31-year-old South Korean mathematician Jineon Baek claims to have solved it now, offering the first rigorous proof that settles the decades-old puzzle.
The problem was first posed in 1966 by Austrian-Canadian mathematician Leo Moser.
His question sounded almost playful:
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