For nearly 60 years, the “moving sofa problem,” a long-standing mathematical puzzle, remained unsolved. Last year, a Korean ...

The research of a Korean mathematician who solved the "Moving Sofa Problem," a mathematical conundrum that has remained unsolved for nearly 60 years, ...

A South Korean mathematician has solved a geometry puzzle that baffled experts in the field for nearly six decades.

A total of 17 shocking murder cases remain unsolved across the Teesside area. In some cases, families have been left for decades without answers, with the identities of the killers still remaining a ...

GPT-5.2 Pro delivers a Lean-verified proof of Erdős Problem 397, marking a shift from pattern-matching AI to autonomous ...

A reward of up to $75,000 is still on the table for information that could help solve the killing of Schertz businessman Henry M. Gutierrez Jr. The case has gone unsolved for 10 years since he was ...

Flower designs on 8,000-year-old Mesopotamian pots reveal a “mathematical knowledge” perhaps developed to share land and ...

GARLAND, N.C. (WECT) - This December marks a decade since Judith Hyder was last seen or heard from. Bladen County detectives are still investigating her disappearance as a homicide, but the case has ...

Matthew Perry's death. Tropical Storm Hilary. A mass shooting at a Lunar New Year festival: These were some of California's ...

Two Florida cold cases that have remained shrouded in mystery for years have finally been solved, according to authorities. Both cases — a fatal stabbing in 2007 and a fatal shooting in 2022 — took ...

Mathematicians rely on numbers, but finding words to explain different levels of certainty has stymied everyone from the ...