80-year-old geometry mystery cracked by OpenAI using deep number theory
interestingengineering.com
An 80-year-old geometry puzzle just fell to AI — not by brute force, but by leaping across mathematical domains in a way human experts never tried.
Analogical ReasoningComputational DiscoveryAlgebraic Number TheoryProblem Decomposition

Theory Briefing
- OpenAI's model cracked an 80-year-old geometry mystery by connecting it to algebraic number theory, a domain human solvers had never applied to this problem.
- Rather than using traditional geometric techniques, the AI found a structural link between the puzzle and deep number theory, revealing a hidden solution path.
- The breakthrough illustrates how cross-domain analogical reasoning — not raw computation — may be AI's most powerful mathematical superpower.