Millennium Prize Problems

Per-problem resolution timeline

Open problems sit on the right edge. Hover a point for resolver and notes.

Definition

The Clay Mathematics Institute named seven problems in 2000 and attached a US$1 million prize to each [@clay2000millennium]. A "discovery" in this series is a row moving to resolved, dated by the year of the resolving work. The list needs no subproblem splitting and has no contested rows: seven problems, one resolved, six open.

The one resolved row is the Poincaré conjecture. The ledger dates it 2003, the year of the last of Perelman's arXiv preprints; the row's notes column records that the preprints ran 2002 to 2003 and that the prize was announced in 2010.

Facts

The collection-wide cumulative index redraws the ledger as rows remaining:

Rows remaining without a dated resolution.

poincare — Poincaré conjecture

"Nearly a century passed between its formulation in 1904 by Henri Poincaré and its solution by Grigoriy Perelman, announced in preprints posted on ArXiv.org in 2002 and 2003." — Clay Mathematics Institute, Poincaré Conjecture page, read 2026-08-14 [@clay2000millennium]

Method

The seven rows are hand-scored from the Clay Mathematics Institute's own pages, which the source column names for every row; there is no fetch.py. The Institute's site lists the Poincaré conjecture under solved problems and the other six as open, and the ledger mirrors that split. Of the three candidate dates for the one event — preprints 2002–2003, prize announced 2010 — the resolved_year takes 2003, the end of the preprint span.

figure.py calls the shared problem_list_chart() in ../../lib/families.py, which keeps the rows whose status is resolved with a non-empty resolved_year and counts resolution events by year from the 2000 list_year to the present. No ai_problem argument is passed, because no row carries an AI credit. The cumulative view is the shared ledger_remaining_chart(). check.py recomputes the fact lines and the register entry from the CSV.

Limitations

AI attribution

No row in millennium-problems.csv names an AI system in its resolver or notes columns; the one dated resolution is Perelman's, dated 2003. No AI credit appears on the Clay Mathematics Institute's problem pages as of the 2026-08-14 read.

Sources