This month, we offered our readers to ponder a problem that was among the most complex on the 2025 International Mathematical Olympiad. This problem did stump DeepMind and OpenAI’s models, but it wasn’t just problematic for AI. Of the 630 student contestants, 569 also received zero points. Only six received the full credit of seven points. Will our readers be able to solve it using their favorite tools or just pen and paper? Link