election_title: "3 candidates / 2 seats, Bloc STAR — tie at every rung (484mbm)"

# BV tracker fields (read by tools_adam/scripts/build_bv_registry.py; engine ignores).
# No bv_test_id on purpose: this case is named by its bvid, which is unique by
# construction. The election's PERMANENT BetterVoting title reads "BV2263 — …",
# which is wrong — BV2263 was minted concurrently for the over-50% control
# (xw23m9) and a BV title cannot be edited or deleted. `484mbm` is the id to
# quote; the number on the BV page should be ignored.
bv_election_id: 484mbm
bv_results_url: https://bettervoting.com/484mbm/results

scenario_description: |-
  The smallest election that ties all the way down. Three voters, three
  candidates, two seats; the ballots rotate, so each voter's 3 / 4 / 5 lands on a
  different candidate (Arden > Blythe > Corin > Arden, rock-paper-scissors).

  Every deterministic rung comes back level. Scores: 12 = 12 = 12. Pairwise: each
  candidate is preferred on 3 of the 9 matchup-ballots, and each wins exactly one
  head-to-head 2-1, so the cycle ties on either reading. Five-star: one score-5
  vote each. Nothing in the ballots separates the three, so the two seats are
  filled entirely by whatever tie-breaking policy was published before the count.

  That makes it a clean divergence probe, and the two engines take different
  paths to the same pair. BetterVoting SKIPS the pairwise rung whenever more than
  two candidates are tied (log `pairwise_too_many_candidates`), falls through
  five-star, and settles seat 1 with its seeded random draw
  perm = [Blythe, Arden, Corin] -> Blythe, then Arden. The LH engine DOES compute
  the pairwise rung, finds it tied 3-3-3, and only then reaches its own
  tiebreaker. Pinning lot_numbers to BV's perm reproduces BV exactly.

  Also a live repro of the tieBreakType reporting gap already seen on BV130-r2:
  round 0 carries `tieBreakType: "random"` and the logs name both draws, but the
  top-level `tieBreakType` is `"none"` and `tied` is `[]` — so the summary a
  reader sees does not say a seat was decided by lot.

  Backs the .starvote input-format page, which runs the same election through
  Larry Hastings' own CLI with the tiebreaker switched off, where it refuses to
  pick anyone at all:
  07_Concepts/tabulation_engines/LH_starvote/starvote_file_format.md

num_winners: 2
voting_method: Bloc STAR
lot_numbers: [Blythe, Arden, Corin]   # BV's drawn perm — reproduces Blythe, Arden
ballots: |-
  Arden,Blythe,Corin
  3,4,5
  5,3,4
  4,5,3

expected_winners:
  - Blythe
  - Arden

# file: b484mbm_tie_every_rung.yaml