Tian2 The Library of Competitions Tian2 Editions
Volume I · MMXXVI Issue No. 1 — Spring
⁂   A Reading Room for Ambitious Students

A library of fifty-two competitions — held to a higher standard.

Tian2 reads the rules so you don't have to. Each competition in this library is researched from official sources only, structured into student and advisor editions, and set with the care of a beloved magazine — so that what you find here is true, complete, and a pleasure to use.

52 competitions 10 disciplines 18 reader editions published Updated 21 May 2026
In This Issue

Three to read first.

See all forty →
Humanities · Essay Competition

The John Locke Institute Global Essay Prize

A two-thousand-word essay — and the chance to be read by a panel from Oxford. What the prize actually asks for, and what the best entries have in common.

Student Edition · Advisor Edition · 2026 Prompts Read →
Departments

Browse by discipline.

All competitions →
I.

Physics

物理

From the British Physics Olympiad to Berkeley's brand-new tournament. Six papers, all in the same room.

6  competitions
II.

Biology & Health

生物 · 健康

USA, UK, and Australia's biology olympiads, the Brain Bee, and HOSA's 105 health events.

5  competitions
III.

Chemistry

化学

The USNCO three-part exam, and the Royal Society's UK Chemistry Olympiad.

2  competitions
IV.

Mathematics

数学

From the UKMT Junior Challenge to the Harvard-MIT Math Tournament.

3  competitions
V.

Astronomy

天文

The International Astronomy and Astrophysics Competition — three rounds, three age groups.

1  competition
VI.

Computer Science

计算机科学

USACO's four divisions, the Congressional App Challenge, and the Australian CAT.

3  competitions
VII.

Linguistics

语言学

The IOL and NACLO — puzzles in undiscovered languages, no prior knowledge required.

2  competitions
VIII.

Research & Fairs

科研 · 科学展

ISEF, JSHS, and the National Science Bowl — full-year research projects and team buzzers.

3  competitions
IX.

Engineering & Tech

工程 · 技术

The American Rocketry Challenge and the Technology Student Association's 42 events.

2  competitions
X.

Business & Economics

商科 · 经济学

DECA, FBLA, NEC, the Wharton Global Investment Challenge, and Diamond Challenge.

6  competitions
XI.

Writing & Humanities

写作 · 人文

John Locke, Marshall Society, Concord Review, Cambridge Re:think, NYT, NHD, HIR.

7  competitions

The Full Catalogue

总目录

Every competition in the library, with one-line summaries, on a single readable page.

52  entries
Editor's Note

What we will and will not publish.

I.

Official sources only.

Every claim in this library cites the rule book, the syllabus, or the past paper. Where the official source is silent, we say so — instead of guessing.

II.

Two editions, two readers.

A student needs to know what to do this week. An advisor needs a calendar and a sign-off sheet. We publish both, separately, so neither has to wade through the other.

III.

Edited like a book.

Each playbook ships as a typeset PDF, an HTML article, and an EPUB. Not as a Google Doc. Not as a sales page. As a thing you would want to keep.

The page is opaque paper. If you need to layer, use a flat color stamp. — Tian2 House Style, §3
Workshop Notes

Where each playbook stands today.

Published Editions 18 Student + Advisor PDFs across 9 competitions.
Archive Complete 14 Tier-1 official sources captured and normalized.
Audit Complete 12 First-pass research finished; archive in progress.
In Triage 8 Sources mapped; access blocked or under review.

Every status above is updated when a slice closes — not when we are hoping to finish. A competition is “published” only after both a Student Edition and an Advisor Edition have shipped with a quality report, a build manifest, and a source-confidence note.

New  ·  Illustrated Guides  ·  连环画图解竞赛

Two competitions, drawn from the inside out.

Hand-drawn pencil panels on BPhO scoring and ISEF fair navigation. No slides, no bullet lists — just ink on paper walking you through the questions that actually matter.

BPhO  ·  ISEF  ·  7 panels Read the guides  →
⁂   Free editorial showcase

Read the library.

Every competition entry is researched from official sources, written for students and advisors, and published here as a free editorial showcase.