center_squeeze_bv2137 — one electorate, four tabulations (center squeeze)¶
The textbook center squeeze from Robert LeGrand's ranked-ballot calculator, reproduced on BetterVoting (election ywckmg, Test ID BV2137). 100 voters rank three candidates; the centrist Anderson is the Condorcet winner but has the fewest first-choices, so IRV/STV eliminate him and elect Carter, while Ranked Robin and STAR elect Anderson.
Read the lesson: bv2137_ywckmg_center_squeeze.md — the four-way result, the LeGrand ↔ pref_voting ↔ LH ↔ BV agreement table, and the rank→score conversion.
| Race | Method | Winner | Read · run |
|---|---|---|---|
| IRV (Hare) | RCV-IRV | Carter | page · .yaml |
| STV, 1 seat | STV | Carter | page · .yaml |
| Ranked Robin | Copeland | Anderson (Condorcet) | page · .yaml |
| STAR | STAR (ranks→scores) | Anderson | page · .yaml |
Up: method_comparisons · sibling: no_condorcet_bv2138 · field guide: ranked-ballot method zoo