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

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Note: Most subscribers have some, but not all, of the puzzles that correspond to the following set of solutions for their local newspaper. WHY DID A DARING FISH SWIM ALL THE WAY FROM ONE SEASHORE TO ...

Below are the most important global events likely to affect FX and bond markets in the week ending Jan. 9. U.S. jobs data for December and ISM data on U.S. manufacturing and services-sector activity ...

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Assigns nurses to patients and rooms while respecting complexity and capacity constraints. Prioritizes continuity of care. Generates optimal schedules using Google OR-Tools.