United States Math Olympiad

USAMO — Chronological

Pages532

FormatChronological

SubjectMathematics

Year-by-year USAMO solutions from 1972 through 2025, presenting over five decades of the premier US math olympiad in historical sequence. Ideal for systematic proof-writing training and understanding how competition mathematics has evolved.

Set in LaTeX and typeset like a book worth keeping — a free editorial showcase of Tian2’s original solution work. The complete volume is available on request.

Revised edition, September 2026, on Tian2’s unified mathematics template: all 300 USAMO problems from 1972 to 2025 with 650 worked proof methods. This multi-solution edition runs 532 pages; a single-solution edition (330 pages) is also available.

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Inside the Book

3 sample pages

USAMO — Chronological — table of contents — Table of contents

USAMO — Chronological — sample solution — Sample solution

Showcase preview. These are reduced-resolution sample pages — the full sellable PDF is not published here. The complete 532-page book is available on request. Every solution is original work by Tian2; original exam questions remain © their respective owners.