scenario: ground/gr-e02-shared-ground
description: >
  SHARED GROUND scoring after Round 5 (GR-R09, GR-E01, GR-E02): one
  shared total against the player-count threshold, with a Mastery
  rating reduced by each Blame token and each Denied Problem.
covers: [GR-R09, GR-E01, GR-E02, GR-P03]
ruled: 2026-08-08
ruled_by: ground-game
ruled_note: >
  GROUND-WP-0002 T03, 2026-08-03 — confirm: encode Modes.csv MODE_COOP as printed. Encodes no U-item; it was provisional on the mode data, not on an undetermined rule.
  RE-RULED 2026-08-08 (F28 / GROUND-RPT-0006 §5(a)): mastery penalties apply to POINTS, not card count. Modes.csv MODE_COOP was clarified upstream and this scenario's expectation moved from 0 to 2. The schema has no field for a second ruling, so both are recorded here; the `ruled` date is the LATEST, because that is the one a reader must check the edition against.
seed: 42
setup:
  players: 3
  preset: standard-3p
  patch:
    "lead": 0
    "round": 5
    "mode": SharedGround
    # 3p threshold is 7; claimed values 1+3 fall short.
    "problems.1.claimed_by": 0
    "problems.3.claimed_by": 1
    "problems.2.denied": true
    "players.2.blame_from": [0]
commands:
  - actor: P1
    cmd: select_action
    args: { action: INVESTIGATE, problem: 2 }
  - actor: P2
    cmd: select_action
    args: { action: INVESTIGATE, problem: 2 }
  - actor: P3
    cmd: select_action
    args: { action: INVESTIGATE, problem: 2 }
  - actor: SYSTEM
    cmd: reveal
  - actor: SYSTEM
    cmd: resolve
  - actor: SYSTEM
    cmd: end_round
expect:
  events:
    - kind: GameEnded
  state:
    "outcome.total": 4
    "outcome.threshold": 7
    "outcome.group_success": false
    # POINTS, not card count (F28, ruled by ground-game 2026-08-08):
    # start from the shared point total (4), −1 point per Blame token,
    # −1 point per Denied Problem.
    #
    # **This scenario asserted 0** — 2 claimed CARDS − 1 − 1 — which is
    # the reading the clarified Modes.csv now rules out. The number moved
    # because the rule was decided, not because the engine drifted, and
    # the gate went red on exactly this line.
    "outcome.mastery": 2
    "outcome.winners": []
    # GR-R09: the game ended rather than advancing to Round 6.
    "round": 5
    "step": End
  rejects: []