ChatGPT 5.6 Pro claims to have found a counterexample to a 22-year-old graph theory conjecture

A user claims they asked ChatGPT 5.6 Pro to find a counterexample to an open conjecture of its choosing, and it found a counterexample to WOWII Conjecture 91, open for ~22 years. The user admits no interest in graph theory, showing AI's potential for serendipitous discovery.

• ChatGPT
• AI Research
• conjecture
• graph theory