======================================================================
SOURCE FILE:     bv2176_p8dp28_irv.yaml
TABULATED FILE:  bv2176_p8dp28_irv_tabulated.txt
======================================================================

election_title: "The Post-it RCV example (20 voters) — RCV-IRV: Purple wins the video's whiteboard count"

scenario_description: |-
  One of three races in the Post-it RCV example (BV2176, bvid p8dp28;
  BV-confirmed). The 20 ranked ballots from Equal Vote's video "Updated: How
  does RCV work? — With Post-its!" (https://youtu.be/Vte4nly_Neg), counted
  exactly as on the whiteboard. Round 1: Purple 7, Green 6, Blue 4, Pink 3 —
  Pink is eliminated (1 ballot goes to Green, 1 to Purple, and 1 bullet-vote
  Pink ballot exhausts). Round 2: Purple 8, Green 7, Blue 4 — Blue is
  eliminated (1 to Green, 1 to Purple, and the 2 Blue>Pink ballots exhaust,
  Pink being already gone). Final: Purple 9, Green 8 — Purple wins with 9 of
  the 17 still-active ballots. The sting the video builds to: Blue, the round-2
  eliminee, beats Purple head-to-head 10-9 — a runoff RCV-IRV never held, but
  the STAR race on these voters' scores does (and Blue wins it).

  Live results: https://bettervoting.com/p8dp28/results
  Companion races: bv2176_p8dp28_star.yaml, bv2176_p8dp28_ranked_robin.yaml.
  Overview page: bv2176_p8dp28_postit_rcv_example.md

bv_test_id: BV2176
bv_election_id: p8dp28
bv_results_url: https://bettervoting.com/p8dp28/results
paradoxes: [condorcet-cycle]

voting_method: IRV
num_winners: 1

ballots: |-
  Purple
  Purple
  Purple
  Purple
  Purple
  Purple
  Purple
  Green>Blue>Pink
  Green>Blue>Pink
  Green>Blue>Pink
  Green>Blue>Pink
  Green>Blue>Pink
  Green>Blue>Pink
  Blue>Pink
  Blue>Pink
  Blue>Green>Pink
  Blue>Purple
  Pink>Green>Purple
  Pink>Purple
  Pink

expected_winners:
  - Purple

# file: bv2176_p8dp28_irv.yaml

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TABULATION RESULTS
======================================================================

--- RCV / Instant-Runoff Voting (single winner) ---
  The Post-it RCV example (20 voters) — RCV-IRV: Purple wins the video's whiteboard count
 Tabulating 20 ballots (ranked ballots).

ROUND 1
Candidate      Votes  Status
-----------  -------  --------
Purple             7  Hopeful
Green              6  Hopeful
Blue               4  Hopeful
Pink               3  Rejected

ROUND 2
Candidate      Votes  Status
-----------  -------  --------
Purple             8  Hopeful
Green              7  Hopeful
Blue               4  Rejected
Pink               0  Rejected
Blank Votes        1  Rejected

FINAL RESULT
Candidate      Votes  Status
-----------  -------  --------
Purple             9  Elected
Green              8  Rejected
Blue               0  Rejected
Pink               0  Rejected
Blank Votes        3  Rejected


Winner(s) — RCV / Instant-Runoff Voting (single winner)
  Purple

--- Smith Set (the generalized Condorcet winner) ---
The smallest group whose every member beats every candidate outside it —
the honest answer to "who is even in contention?".
   Smith set (4 of 4): Green, Blue, Purple, Pink
   Outside (0):        —
   More than one member ⇒ NO Condorcet winner: the top of the tournament is a
   cycle, so the strongest "candidate" is a set, not a person. Which member of
   the set should win is exactly what Minimax / Ranked Pairs / Schulze disagree
   about — see 05_Ranked_Robin/01_Learn/cycle_resolution.md.
   Note: the Copeland leaders (Green, Blue) are only part of the set — the
   win–loss table's top block understates how wide the contention is.
   RCV-IRV winner Purple is INSIDE the Smith set. ✓
      Not guaranteed — RCV-IRV is not Smith-efficient — but it holds here.
   More: 07_Concepts/topics/smith_set.md