Can you win most of the seats without winning most of the votes?

The same 36 voters. Three district maps. Three different outcomes.

20 Blue voters — 55.6% of the vote

16 Red voters — 44.4% of the vote

Nothing changed except the district boundaries. The same voters produced a 2–2 split, a 3–1 Red result, and a 3–1 Blue result.

When can rearranging the same pieces change the result?

How can boundaries change the result?

District elections count separate groups rather than one overall electorate. Moving the boundaries changes which voters are counted together, so the same total vote can produce different numbers of seats.

H015 — Gerrymander: Real Districts provides a real-world companion using actual congressional districts.

H021 — 1960 World Series shows the same broader idea in sports: winning the individual units that count can matter more than the overall total.