diff --git a/Makefile b/Makefile
index 0d2db3a..54150bc 100644
--- a/Makefile
+++ b/Makefile
@@ -35,6 +35,11 @@ PLAYERS ?= 3
# a session that could not say which variant it was is what produced
# the report "I did a session and noted no changes".
VARIANT ?= ground-darvo-r0
+# CB-WP-0047: the other three boards and the other two modes were
+# unreachable from the way anyone actually plays. Defaults are what was
+# always played, so `make ground` is unchanged.
+SCENARIO ?= 1
+MODE ?= shared
PORT ?= 0
# Every cargo recipe runs at the repo root; the shell does not persist cd.
@@ -72,13 +77,14 @@ help:
## type in the notes panel is bound to the position you typed it at.
## `make ground PLAYERS=2 SLUG=darvo-confusion`
## Read the notes back afterwards with `make trials`.
-## play a session (VARIANT=ground-darvo-r0|h1|h2)
+## play a session (VARIANT=ground-darvo-r0|h1|h2, SCENARIO=1|2|3|4, MODE=shared|common|coalitions)
ground:
- @echo " rules: $(VARIANT)"
+ @echo " rules: $(VARIANT) scenario: $(SCENARIO) scoring: $(MODE)"
@mkdir -p $(REPO)/trials
@echo " trial: trials/$(TRIAL_NAME).md (notes) + .yaml (the game)"
$(IN_REPO) $(CARGO) run -q -p cb-play -- \
--players $(PLAYERS) --serve $(PORT) --variant $(VARIANT) \
+ --scenario $(SCENARIO) --mode $(MODE) \
--record trials/$(TRIAL_NAME).yaml \
--trial trials/$(TRIAL_NAME).md $(ARGS)
@@ -245,6 +251,7 @@ panels:
@cargo run --release -q -p games-ground --example regulation
@cargo run --release -q -p games-ground --example perfect-recall
@cargo run --release -q -p games-ground --example h2-panel
+ @cargo run --release -q -p games-ground --example scenario-panel
# CB-WP-0022 T05: the design-finding register, reported over
# specs/GroundRules.md. Shows the QUEUE by default; the log of closed
diff --git a/crates/cb-render-html/src/doc.rs b/crates/cb-render-html/src/doc.rs
index bb168b0..d5d3456 100644
--- a/crates/cb-render-html/src/doc.rs
+++ b/crates/cb-render-html/src/doc.rs
@@ -1069,13 +1069,22 @@ pub fn document_with_log(
s,
"
GROUND \u{2014} round {round}, step {step:?}
\
lead {lead} \
- scoring {mode:?} \
+ scoring {mode} \
rules {variant} \
+ scenario {scenario} \
viewing as {who}
",
round = view.round,
step = view.step,
lead = seat_name(view.lead),
- mode = view.mode,
+ // CB-WP-0047: this was `{mode:?}` — `CommonProblem` where the
+ // Mode card is titled "COMMON PROBLEM, PERSONAL EDGE". The exact
+ // defect CB-WP-0034 fixed on the move buttons, still standing in
+ // the header, on the one line that says what winning means.
+ mode = esc(&mode_title(view.mode)),
+ // CB-WP-0047: and WHICH of the four boards this is. Four
+ // scenarios became selectable in this pass; before it, a page
+ // that never named one was at least never wrong.
+ scenario = esc(&scenario_title(&view.scenario)),
// CB-WP-0044: the page must say which rules it is playing. It did
// not, so a player who ran the default and was told the layout had
// changed reported "no changes" — correctly, because the baseline
@@ -1306,6 +1315,46 @@ fn body(s: &mut String, view: &GroundView) {
s.push_str("no problems in play
");
}
s.push_str(&table_svg(view));
+ // CB-WP-0047: WHAT THIS GAME IS ABOUT, and WHAT WINNING MEANS.
+ //
+ // The premise was vendored and unread while one scenario was
+ // hardcoded — with a single board there was nothing to tell apart.
+ // Selecting among four makes an unnamed board a real defect.
+ //
+ // The Mode card is the sharper one: it is the only statement of the
+ // win condition, three of them differ completely, and the page had
+ // never shown any of them. A player in BONDED COALITIONS was not
+ // told that Bonds decide the sides at the end.
+ if let Some(premise) = scenario_premise(&view.scenario) {
+ let _ = write!(
+ s,
+ "{} \u{2014} what happened\
+
{} ",
+ esc(&scenario_title(&view.scenario)),
+ esc(&premise)
+ );
+ }
+ if let Some((rules, tiebreak)) = mode_rules_text(view.mode) {
+ let _ = write!(
+ s,
+ "{} \u{2014} how this game is won\
+
{}",
+ esc(&mode_title(view.mode)),
+ esc(&rules)
+ );
+ // The tiebreak is a rule the player can PLAY FOR — "lower Stress,
+ // then more Bonds" changes what a losing seat should do in round
+ // five — and it lives in its own column, so it renders as its own
+ // sentence rather than being silently dropped.
+ if !tiebreak.trim().is_empty() && !tiebreak.eq_ignore_ascii_case("Not applicable.") {
+ let _ = write!(
+ s,
+ "
tiebreak {}",
+ esc(&tiebreak)
+ );
+ }
+ s.push_str(" ");
+ }
// CB-WP-0046: the placement is legible, the RULE it encodes was not.
//
// Shown only when a non-global scope is actually on the table — under
@@ -1523,6 +1572,59 @@ fn stress_scope_rule_text() -> Option {
games_ground::edition::stress_scope_rule()
}
+/// The Mode card's printed title, not the Rust variant's name.
+///
+/// Falls back to the id, which is at least a thing the edition says —
+/// never to `Debug`, which is a thing only the compiler says.
+fn mode_title(mode: games_ground::ScoringMode) -> String {
+ use games_ground::ScoringMode as M;
+ let want = match mode {
+ M::SharedGround => "MODE_COOP",
+ M::CommonProblem => "MODE_SEMI",
+ M::BondedCoalitions => "MODE_COALITION",
+ };
+ games_ground::edition::modes()
+ .ok()
+ .and_then(|ms| {
+ ms.into_iter()
+ .find(|(c, _)| c.id == want)
+ .map(|(c, _)| c.title)
+ })
+ .unwrap_or_else(|| want.to_string())
+}
+
+/// What the Mode card says about how this game is won (CB-WP-0047).
+fn mode_rules_text(mode: games_ground::ScoringMode) -> Option<(String, String)> {
+ use games_ground::ScoringMode as M;
+ let want = match mode {
+ M::SharedGround => "MODE_COOP",
+ M::CommonProblem => "MODE_SEMI",
+ M::BondedCoalitions => "MODE_COALITION",
+ };
+ games_ground::edition::modes().ok().and_then(|ms| {
+ ms.into_iter()
+ .find(|(c, _)| c.id == want)
+ .map(|(c, tie)| (c.rules_text, tie))
+ })
+}
+
+/// The Scenario card's printed title.
+fn scenario_title(id: &str) -> String {
+ games_ground::edition::scenarios()
+ .ok()
+ .and_then(|ss| ss.into_iter().find(|s| s.id == id).map(|s| s.title))
+ .unwrap_or_else(|| id.to_string())
+}
+
+/// The Scenario card's premise — what the table is arguing about.
+fn scenario_premise(id: &str) -> Option {
+ games_ground::edition::scenarios()
+ .ok()?
+ .into_iter()
+ .find(|s| s.id == id)
+ .map(|s| s.premise)
+}
+
/// A GROUND sub-choice, in words, naming whoever it touches.
fn ground_choice_label(c: &games_ground::GroundChoice) -> String {
use games_ground::GroundChoice as G;
diff --git a/crates/cb-render-html/src/lib.rs b/crates/cb-render-html/src/lib.rs
index 7e316f4..d5f92b2 100644
--- a/crates/cb-render-html/src/lib.rs
+++ b/crates/cb-render-html/src/lib.rs
@@ -135,7 +135,12 @@ mod coverage {
("round", "round 3"),
("lead", "lead P2"),
("step", "step Select"),
- ("mode", "scoring BondedCoalitions"),
+ // Was "scoring BondedCoalitions" — the Rust variant's name.
+ // **The probe was certifying the defect**, and went red the
+ // moment the defect was fixed. Third time this exact shape has
+ // been found (CB-WP-0024, CB-WP-0034): a probe that names a
+ // rendering holds that rendering in place, so probes name FACTS.
+ ("mode", "BONDED COALITIONS"),
("viewer", "viewing as P1"),
("solution_deck_len", "draw pile: 17 remaining"),
("solution_discard.*.suit", "discard Repair Change"),
@@ -188,6 +193,11 @@ mod coverage {
// OMITTED, and the page would be illegible to `text_of` and to a
// screen reader alike.
("variant", "ground-darvo-r0"),
+ // The fixture plays SCN_03, so the token is that card's TITLE.
+ // Not "SCN_03": a probe that matches an id would go green
+ // against a page showing the id, which is the machine's name for
+ // the board and not the player's (CB-WP-0034's finding).
+ ("scenario", "Decision Without Consent"),
("problem_markers.*.owner", "P1\u{2019}s alone"),
("problem_markers.*.scope", "P2\u{2019}s Bond network"),
("outcome.total", "total 9"),
@@ -697,6 +707,79 @@ mod gamelog {
}
}
+ /// **The page names the Mode by its printed title** (CB-WP-0047).
+ ///
+ /// The header read `scoring CommonProblem` — the Rust variant's
+ /// name, where the Mode card is titled *"COMMON PROBLEM, PERSONAL
+ /// EDGE"*. CB-WP-0034 deleted this exact defect from the move
+ /// buttons and it was still standing on the one line that says what
+ /// winning means.
+ #[test]
+ fn every_mode_is_named_and_explained_in_the_editions_words() {
+ use games_ground::ScoringMode as M;
+ for mode in [M::SharedGround, M::CommonProblem, M::BondedCoalitions] {
+ let mut v = crate::testfix::view(Some(PlayerId(0)));
+ v.mode = mode;
+ let text = crate::text_of(&crate::doc::document(
+ &v,
+ &[],
+ "/c",
+ Some(PlayerId(0)),
+ false,
+ ));
+ assert!(
+ !text.contains(&format!("{mode:?}")),
+ "{mode:?}: the page shows the Rust variant's name"
+ );
+ let (card, _) = games_ground::edition::modes()
+ .expect("Modes.csv")
+ .into_iter()
+ .find(|(c, _)| {
+ c.id == match mode {
+ M::SharedGround => "MODE_COOP",
+ M::CommonProblem => "MODE_SEMI",
+ M::BondedCoalitions => "MODE_COALITION",
+ }
+ })
+ .expect("the mode card");
+ assert!(
+ text.contains(&card.title),
+ "{mode:?}: the Mode card's title {:?} is not on the page",
+ card.title
+ );
+ // **And what it MEANS.** Three modes define winning three
+ // different ways and the page had never stated any of them.
+ let head: String = card.rules_text.chars().take(50).collect();
+ assert!(
+ text.contains(&head),
+ "{mode:?}: nothing on the page says how this game is won"
+ );
+ }
+ }
+
+ /// **The page names which of the four boards this is** (CB-WP-0047).
+ #[test]
+ fn every_scenario_is_named_with_its_premise() {
+ for s in games_ground::edition::scenarios().expect("Scenarios.csv") {
+ let mut v = crate::testfix::view(Some(PlayerId(0)));
+ v.scenario = s.id.clone();
+ let text = crate::text_of(&crate::doc::document(
+ &v,
+ &[],
+ "/c",
+ Some(PlayerId(0)),
+ false,
+ ));
+ assert!(text.contains(&s.title), "{}: the board is unnamed", s.id);
+ let head: String = s.premise.chars().take(50).collect();
+ assert!(
+ text.contains(&head),
+ "{}: the page does not say what the table is arguing about",
+ s.id
+ );
+ }
+ }
+
/// **A scope says what it does** (CB-WP-0046).
///
/// CB-WP-0045 shipped the placement and recorded the gap with the
diff --git a/crates/cb-render-html/src/testfix.rs b/crates/cb-render-html/src/testfix.rs
index 4610eab..ca6d8de 100644
--- a/crates/cb-render-html/src/testfix.rs
+++ b/crates/cb-render-html/src/testfix.rs
@@ -76,6 +76,7 @@ pub fn view(viewer: Option) -> GroundView {
lead: p2,
step: RoundStep::Select,
mode: ScoringMode::BondedCoalitions,
+ scenario: "SCN_03".into(),
players,
relations: BTreeMap::from([
(Pair::new(p1, p2), Relation::Rivalry),
diff --git a/editions/catalog.yaml b/editions/catalog.yaml
index 4cfcf54..c14c74a 100644
--- a/editions/catalog.yaml
+++ b/editions/catalog.yaml
@@ -1,98 +1,252 @@
-# Selectable GROUND edition / rules packages.
-# Schema docs: CATALOG.md
-# clay-borg: pin by variant_id → path (+ optional git_pin).
+# GROUND edition catalog — schema 2: composable modules
+# Docs: CATALOG.md
+# clay-borg: select baseline + 0..N modules (≤1 per axis), or a named profile.
-schema_version: 1
+schema_version: 2
updated: "2026-08-08"
-default_variant: ground-darvo-r0
-# H2 added; H1 remains selectable as reject-as-baseline control.
+default_baseline: ground-darvo-r0
+default_profile: baseline
-packages:
- - variant_id: ground-darvo-r0
+# ---------------------------------------------------------------------------
+# Axes — orthogonal dimensions. At most one non-default module per axis.
+# ---------------------------------------------------------------------------
+axes:
+ - id: problem_stress
+ title: Problem → Stress routing
+ default_module: problem_stress.none
+ summary: >
+ Whether and how unclaimed Problems raise Stress at Round End.
+
+ - id: attack_relief
+ title: ATTACK self-soothing
+ default_module: attack_relief.none
+ summary: >
+ Whether resolving ATTACK can reduce the attacker's Stress.
+
+ - id: end_condition
+ title: How the game ends
+ default_module: end_condition.fixed_rounds_5
+ summary: >
+ Fixed round clock vs clear-board / collapse / hybrid ends.
+
+ - id: problem_deal
+ title: How Problems enter play
+ default_module: problem_deal.fixed_setup
+ summary: >
+ Fixed setup deal only vs mid-game influx (pressure deck, etc.).
+
+# Future axes (not yet registered): setup_difficulty, sequence_pacing,
+# ground_as_sequence, status_stress, competence_track.
+
+# ---------------------------------------------------------------------------
+# Baseline content package (CSV edition data)
+# ---------------------------------------------------------------------------
+baselines:
+ - baseline_id: ground-darvo-r0
path: editions/ground-darvo-r0
- kind: baseline
- base: null
selectable: true
status: baseline
dataset_id: GROUND-DARVO-CORE-0.1
title: "GROUND DARVO Edition — core r0"
summary: >
- Playtest baseline. Surface + hidden 1..k deal; available 6/9/12;
- thresholds 5/7/9. Stress ledger has no problem pressure; ATTACK
- does not self-soothe.
- hypothesis_ref: null
- workplan_ref: null
- rules_delta: null
- changed_files: []
+ Print/playtest content. Modes, deal 6/9/12, thresholds 5/7/9.
+ Default modules on all axes = r0 printed behaviour.
utility_estimate: >
- Ship-default. RPT-0003 + CB-EV-0031: under non-attacking competent
- policies, peak Stress held never exceeds start 2 — ATTACK is the
- sole inbound pressure. Keep pinned until a successor is accepted.
+ Ship-default content. Stress has no problem pressure until a
+ problem_stress module is selected.
decision: none
- git_pin: null
- clay_borg_notes: >
- Vendor CSVs as today (Problems, Actions, Solutions, Modes, Tokens).
- Kernel implements printed r0 rules.
- - variant_id: h1-problem-stress
- path: editions/experiments/h1-problem-stress
- kind: experiment
- base: ground-darvo-r0
+# ---------------------------------------------------------------------------
+# Modules — independent variations (one directory each)
+# ---------------------------------------------------------------------------
+modules:
+ # --- problem_stress ---
+ - module_id: problem_stress.none
+ axis: problem_stress
+ path: editions/modules/problem_stress/none
+ is_default: true
+ selectable: true
+ status: baseline-default
+ rules_delta: null
+ summary: Unclaimed Problems do not raise Stress (r0).
+ decision: none
+
+ - module_id: problem_stress.flat_any_open
+ axis: problem_stress
+ path: editions/modules/problem_stress/flat_any_open
+ is_default: false
selectable: true
status: measured
- dataset_id: GROUND-DARVO-EXP-H1-0.1
- title: "H1 — problem pressure + high-stress ATTACK self-soothe"
- summary: >
- Two deltas only: (A) +1 Stress each player at Round End if any
- Problem remains unclaimed; (B) uncancelled ACT_ATTACK by a seat
- at Stress ≥4 gives that seat −1 Stress. Thresholds/deal unchanged.
- hypothesis_ref: history/260807-attack-darvo-stress-design.md
- workplan_ref: workplans/GROUND-WP-0006-h1-problem-stress-experiment.md
+ rules_delta: editions/modules/problem_stress/flat_any_open/rules_delta.yaml
+ legacy_experiment_ids: [h1-problem-stress]
measurement_ref: reports/260808-clay-borg-h1-measured.md
- rules_delta: editions/experiments/h1-problem-stress/rules_delta.yaml
- changed_files:
- - Actions.csv
- - Rules_Text.csv
- - metadata.json
- utility_estimate: >
- Measured 2026-08-08 (CB-EV-0030/0031; instrument caveat applies).
- Direction right, magnitude wrong: H1-A is a solve-rate tax that
- competent seats absorb with GROUND (Stress ~3); H1-B never fires
- for them. DARVO arms for unregulated seats; group wins collapse
- to 0 at 3p+ under greedy SHARED GROUND. Do not promote as-is.
- decision: reject-as-baseline
- # Package stays selectable for regression compare; not a ship pin.
- git_pin: null
- clay_borg_notes: >
- Kernel implements H1-A/H1-B. Keep for A/B against successors (H2…).
-
- - variant_id: h2-scoped-problem-stress
- path: editions/experiments/h2-scoped-problem-stress
- kind: experiment
- base: ground-darvo-r0
- selectable: true
- status: experimental
- dataset_id: GROUND-DARVO-EXP-H2-0.1
- title: "H2 — scoped problem stress (personal / bond / global)"
summary: >
- Unclaimed Problems apply +1 End Stress only to stress_scope:
- personal=owner, bond=owner's Bond network, global=all. Surface
- global; priority 3 is bond (in play at 3p+). Anyone may SOLVE any
- card. Not stacked on H1; no ATTACK self-soothe.
- hypothesis_ref: history/260808-h2-scoped-problem-stress.md
- workplan_ref: workplans/GROUND-WP-0007-h2-scoped-problem-stress.md
- measurement_ref: null
- rules_delta: editions/experiments/h2-scoped-problem-stress/rules_delta.yaml
- changed_files:
- - Problems.csv
- - Rules_Text.csv
- - metadata.json
+ +1 Stress to every seat if any Problem unclaimed (former H1-A).
utility_estimate: >
- Unmeasured. Expected: stress variance up; group wins at 3–4p much
- better than H1; bond cards create joint SOLVE incentive in networks.
- decision: none
- git_pin: null
+ Reject as sole pressure: greedy 3–4p wins → 0. Keep for A/B control.
+ decision: reject-as-baseline
+ clay_borg_notes: Former H1-A; implement without H1-B unless attack_relief also selected.
+
+ - module_id: problem_stress.scoped
+ axis: problem_stress
+ path: editions/modules/problem_stress/scoped
+ is_default: false
+ selectable: true
+ status: measured
+ rules_delta: editions/modules/problem_stress/scoped/rules_delta.yaml
+ data_overlays: [Problems.csv, Rules_Text.csv]
+ legacy_experiment_ids: [h2-scoped-problem-stress]
+ measurement_ref: reports/260808-clay-borg-h2-measured.md
+ hypothesis_ref: history/260808-h2-scoped-problem-stress.md
+ summary: >
+ +1 Stress per unclaimed Problem to stress_scope (personal/bond/global).
+ utility_estimate: >
+ Scoping works (RPT-0005). Keep; candidate promote with other axes later.
+ decision: keep-as-experiment
clay_borg_notes: >
- Implement rules_delta H2-SCOPE, H2-OWN, H2-A, H2-SOLVE on base r0.
- Do not also apply H1 deltas. Problems.csv adds stress_scope column.
- Report bond-card SOLVE rates and stress variance vs r0 and h1.
+ Prefer path editions/modules/problem_stress/scoped. Use with_variant()/owners.
+ legacy_experiment_id h2-scoped-problem-stress remains an alias profile.
+
+ # --- attack_relief ---
+ - module_id: attack_relief.none
+ axis: attack_relief
+ path: editions/modules/attack_relief/none
+ is_default: true
+ selectable: true
+ status: baseline-default
+ rules_delta: null
+ summary: ATTACK does not self-soothe (r0).
+ decision: none
+
+ - module_id: attack_relief.self_soothe_ge4
+ axis: attack_relief
+ path: editions/modules/attack_relief/self_soothe_ge4
+ is_default: false
+ selectable: true
+ status: measured-as-combo
+ rules_delta: editions/modules/attack_relief/self_soothe_ge4/rules_delta.yaml
+ legacy_experiment_ids: [h1-problem-stress]
+ measurement_ref: reports/260808-clay-borg-h1-measured.md
+ summary: Uncancelled ATTACK at Stress ≥4 → attacker −1 Stress (former H1-B).
+ utility_estimate: >
+ Alone unmeasured. With flat problem stress, dead for competent play.
+ Re-measure with problem_stress.scoped via profile scoped_plus_attack_soothe.
+ decision: none
+ clay_borg_notes: Independent of problem_stress; compose explicitly.
+
+ # --- end_condition ---
+ - module_id: end_condition.fixed_rounds_5
+ axis: end_condition
+ path: editions/modules/end_condition/fixed_rounds_5
+ is_default: true
+ selectable: true
+ status: baseline-default
+ rules_delta: null
+ summary: Always 5 rounds then threshold scoring (r0).
+ decision: none
+
+ - module_id: end_condition.hybrid_clear_collapse
+ axis: end_condition
+ path: editions/modules/end_condition/hybrid_clear_collapse
+ is_default: false
+ selectable: true
+ status: proposed
+ rules_delta: editions/modules/end_condition/hybrid_clear_collapse/rules_delta.yaml
+ hypothesis_ref: history/260808-deal-end-sequences-design.md
+ summary: >
+ End on board clear, group collapse, or round ceiling (draft rules).
+ utility_estimate: Unimplemented — draft only.
+ decision: none
+ clay_borg_notes: Kernel pending; do not claim measured until implemented.
+
+ # --- problem_deal ---
+ - module_id: problem_deal.fixed_setup
+ axis: problem_deal
+ path: editions/modules/problem_deal/fixed_setup
+ is_default: true
+ selectable: true
+ status: baseline-default
+ rules_delta: null
+ summary: Surface + hidden 1..k at setup only (r0).
+ decision: none
+
+ - module_id: problem_deal.pressure_deck
+ axis: problem_deal
+ path: editions/modules/problem_deal/pressure_deck
+ is_default: false
+ selectable: true
+ status: proposed
+ rules_delta: editions/modules/problem_deal/pressure_deck/rules_delta.yaml
+ hypothesis_ref: history/260808-deal-end-sequences-design.md
+ summary: >
+ Small start set + mid-game draws from Pressure deck (draft).
+ utility_estimate: Unimplemented — draft only.
+ decision: none
+ clay_borg_notes: >
+ Kernel pending. Recommended compose with problem_stress.scoped.
+ v0 draft uses 0-point drawn cards.
+
+# ---------------------------------------------------------------------------
+# Profiles — named compositions (convenience; not a second rules source)
+# Selection = baseline + modules list. Defaults fill missing axes.
+# ---------------------------------------------------------------------------
+profiles:
+ - profile_id: baseline
+ title: Pure r0
+ modules: []
+ summary: All axis defaults — printed ground-darvo-r0 behaviour.
+
+ - profile_id: h1
+ title: Legacy H1 (flat problem stress + attack soothe)
+ modules:
+ - problem_stress.flat_any_open
+ - attack_relief.self_soothe_ge4
+ legacy_experiment_id: h1-problem-stress
+ summary: Equivalent to old monolithic experiment h1-problem-stress.
+ decision: reject-as-baseline
+
+ - profile_id: h2
+ title: Legacy H2 (scoped problem stress only)
+ modules:
+ - problem_stress.scoped
+ legacy_experiment_id: h2-scoped-problem-stress
+ summary: Equivalent to old monolithic experiment h2-scoped-problem-stress.
+ decision: keep-as-experiment
+
+ - profile_id: scoped_plus_attack_soothe
+ title: Scoped stress + ATTACK self-soothe
+ modules:
+ - problem_stress.scoped
+ - attack_relief.self_soothe_ge4
+ summary: First intentional multi-axis combo after modular catalog.
+ status: unmeasured
+
+ - profile_id: scoped_plus_hybrid_end
+ title: Scoped stress + hybrid end (when end module ships)
+ modules:
+ - problem_stress.scoped
+ - end_condition.hybrid_clear_collapse
+ summary: Requires end_condition.hybrid_clear_collapse kernel support.
+ status: proposed
+
+ - profile_id: scoped_plus_pressure_deck
+ title: Scoped stress + pressure deck (when deal module ships)
+ modules:
+ - problem_stress.scoped
+ - problem_deal.pressure_deck
+ summary: Requires problem_deal.pressure_deck kernel support.
+ status: proposed
+
+# ---------------------------------------------------------------------------
+# Legacy experiment paths (still on disk; prefer modules + profiles)
+# ---------------------------------------------------------------------------
+legacy_experiments:
+ - experiment_id: h1-problem-stress
+ path: editions/experiments/h1-problem-stress
+ equivalent_profile: h1
+ note: Prefer profile h1 or modules problem_stress.flat_any_open + attack_relief.self_soothe_ge4
+
+ - experiment_id: h2-scoped-problem-stress
+ path: editions/experiments/h2-scoped-problem-stress
+ equivalent_profile: h2
+ note: Prefer profile h2 or module problem_stress.scoped
diff --git a/editions/experiments/h1-problem-stress/VARIANT.md b/editions/experiments/h1-problem-stress/VARIANT.md
index f4b4b02..01fc4f5 100644
--- a/editions/experiments/h1-problem-stress/VARIANT.md
+++ b/editions/experiments/h1-problem-stress/VARIANT.md
@@ -2,7 +2,8 @@
| | |
|---|---|
-| **variant_id** | `h1-problem-stress` |
+| **variant_id** | `h1-problem-stress` (**legacy** — prefer profile `h1` = `problem_stress.flat_any_open` + `attack_relief.self_soothe_ge4`) |
+| **modules** | flat problem stress + attack self-soothe (see `editions/modules/`) |
| **base** | `ground-darvo-r0` |
| **status** | measured — reject as baseline (2026-08-08); keep for A/B |
| **measurement** | [`../../../reports/260808-clay-borg-h1-measured.md`](../../../reports/260808-clay-borg-h1-measured.md) |
diff --git a/editions/experiments/h2-scoped-problem-stress/VARIANT.md b/editions/experiments/h2-scoped-problem-stress/VARIANT.md
index ce5b9bd..f96d5bf 100644
--- a/editions/experiments/h2-scoped-problem-stress/VARIANT.md
+++ b/editions/experiments/h2-scoped-problem-stress/VARIANT.md
@@ -2,9 +2,10 @@
| | |
|---|---|
-| **variant_id** | `h2-scoped-problem-stress` |
+| **variant_id** | `h2-scoped-problem-stress` (**legacy** — prefer module `problem_stress.scoped` / profile `h2`) |
+| **module** | [`../../modules/problem_stress/scoped/`](../../modules/problem_stress/scoped/) |
| **base** | `ground-darvo-r0` (not stacked on H1) |
-| **status** | experimental |
+| **status** | measured — keep-as-experiment |
| **catalog** | [`../../catalog.yaml`](../../catalog.yaml) |
| **design note** | [`../../../history/260808-h2-scoped-problem-stress.md`](../../../history/260808-h2-scoped-problem-stress.md) |
| **workplan** | [`../../../workplans/GROUND-WP-0007-h2-scoped-problem-stress.md`](../../../workplans/GROUND-WP-0007-h2-scoped-problem-stress.md) |
diff --git a/editions/ground-darvo-r0/PROVENANCE.md b/editions/ground-darvo-r0/PROVENANCE.md
index e195650..72d1dee 100644
--- a/editions/ground-darvo-r0/PROVENANCE.md
+++ b/editions/ground-darvo-r0/PROVENANCE.md
@@ -58,16 +58,16 @@ the adversarial review ([CB-REV-0001](../../reviews/CB-REV-0001-h1.md))
reported it unverified and it was a real gap.
```
-sha256 c469f984c3147861815e8fbd67cf1254de73368fad1654f4177f740c0c280499 ../catalog.yaml
+sha256 cd0c0db9eef5e9f94df6c1b26837c5e800d9eb8c79ee113a537767aa88934c76 ../catalog.yaml
sha256 4c81bae21d2ecb70c7424fa17445246a9b551b10e258d448634816c564e28f09 ../experiments/h2-scoped-problem-stress/Problems.csv
sha256 8ed8deb7ad142de1bda70dc11add339f742e8c12ac1f02d5f7c7ec8f17f77b1d ../experiments/h2-scoped-problem-stress/Rules_Text.csv
-sha256 b2db91edc6798efca1ccf0b048bb0d7cb324e808e01d636ebca813527bcd0db2 ../experiments/h2-scoped-problem-stress/VARIANT.md
+sha256 b0ffea41820ef35960d8c75ff0a734370a29a738e49fda74851fe5c2daafe53e ../experiments/h2-scoped-problem-stress/VARIANT.md
sha256 abf994f585fdfa9b2822614a7961e98141cded6a91c446916ff7fd48642de0a7 ../experiments/h2-scoped-problem-stress/metadata.json
sha256 8dc569b2ae62f88f7f64e282bc6bba3dbcc3ffcad276591baafbdd24cb6c16b7 ../experiments/h2-scoped-problem-stress/rules_delta.yaml
sha256 f58e81f84ea2b0d16e39932261eb3f3d9890345cdf37ad6f0b3abc00636840be ../experiments/h1-problem-stress/rules_delta.yaml
sha256 7b1cc0149122b855e827bc930576ed165bf7dd8d62707e845a9e514ce3521f8e ../experiments/h1-problem-stress/Actions.csv
sha256 62785f5e7e245c60171624d15de2f40187a44fec54f93c7d9705cf52584b1078 ../experiments/h1-problem-stress/Rules_Text.csv
-sha256 b2714210c142f1d6d5bed8f9a795019e51829c627f9599ac0ebfa04ef60a37a5 ../experiments/h1-problem-stress/VARIANT.md
+sha256 49897a68056643a8cfccff32c9e4a9811018b4e4689b90a85124a487f2318369 ../experiments/h1-problem-stress/VARIANT.md
sha256 443199db94601cc889557e5e86823f374dbfdf875962fc84f95c01865605101c ../experiments/h1-problem-stress/metadata.json
```
diff --git a/games/ground/examples/scenario-panel.rs b/games/ground/examples/scenario-panel.rs
new file mode 100644
index 0000000..ab8c0fa
--- /dev/null
+++ b/games/ground/examples/scenario-panel.rs
@@ -0,0 +1,156 @@
+//! Every board, in every mode, at every seat band (CB-WP-0047).
+//!
+//! The engine dealt `SCN_01` and only `SCN_01` for the whole life of this
+//! repo: `deal` took a scenario id, `setup` passed a literal, and **15 of
+//! the 20 Problem cards had never been dealt by anything**. The three
+//! scoring modes were reachable from the driver but no measurement had
+//! ever compared them.
+//!
+//! This plays all of it. It is a **characterisation panel**, not a
+//! hypothesis test: nothing here predicts an outcome, and the numbers
+//! exist so that a later change to a deck or a mode is visible as a
+//! change rather than discovered by a player.
+//!
+//! **SCN_01 and SCN_02 are the same board.** Identical suits and values
+//! at every priority; they differ only in prose. They are both played
+//! anyway — a panel that dropped one would hide the day they diverge —
+//! and the column is expected to match, which is itself a control.
+
+use cb_game_runtime::{ScenarioGame, Setup};
+use games_ground::bot::{play, GreedyPolicy, Policy};
+use games_ground::{GroundState, ScoringMode};
+
+/// Games per cell. Named once so the banner and the assertion cannot
+/// disagree — a previous panel printed "200 games per cell" over
+/// 196-game columns (CB-REV-0002 #1).
+const GAMES: u32 = 100;
+
+struct Cell {
+ games: u32,
+ /// Games that reached an outcome over the full five rounds. A game
+ /// that RAN is not a game that was PLAYED (CB-REV-0003 #2).
+ played: u32,
+ group_success: u32,
+ /// Seats named a winner. Under SHARED GROUND that is everyone or
+ /// nobody; under the other two it is the point of the mode.
+ winners: u32,
+ /// Claimed value summed over games, so the threshold has something
+ /// to be compared against.
+ total: u32,
+ threshold: u32,
+ setup_fails: u32,
+}
+
+fn sweep(scenario: &str, mode: ScoringMode, players: u8) -> Cell {
+ let mut c = Cell {
+ games: 0,
+ played: 0,
+ group_success: 0,
+ winners: 0,
+ total: 0,
+ threshold: 0,
+ setup_fails: 0,
+ };
+ let preset = if scenario == "SCN_01" {
+ format!("standard-{players}p")
+ } else {
+ format!("scn-{}-{players}p", scenario.rsplit('_').next().unwrap())
+ };
+ for seed in 0..GAMES as u64 {
+ let Ok(mut st) = GroundState::setup(
+ &Setup {
+ players,
+ preset: preset.clone(),
+ patch: Default::default(),
+ },
+ seed,
+ ) else {
+ // Counted, not skipped (CB-REV-0001 #11).
+ c.setup_fails += 1;
+ continue;
+ };
+ st.mode = mode;
+ // The board actually dealt, so the panel cannot report a
+ // scenario it did not play.
+ assert_eq!(st.scenario, scenario, "{preset} dealt {}", st.scenario);
+ let mut ps: Vec> = (0..players)
+ .map(|_| Box::new(GreedyPolicy) as Box)
+ .collect();
+ let g = match play(st, &mut ps) {
+ Ok(g) => g,
+ Err(e) => {
+ eprintln!(" !! {scenario} {mode:?} {players}p seed {seed}: {e:?}");
+ continue;
+ }
+ };
+ c.games += 1;
+ if g.state.outcome.is_some() && g.rounds == 5 {
+ c.played += 1;
+ }
+ if let Some(o) = &g.state.outcome {
+ if o.group_success {
+ c.group_success += 1;
+ }
+ c.winners += o.winners.len() as u32;
+ c.total += o.total;
+ c.threshold = o.threshold;
+ }
+ }
+ assert_eq!(
+ c.games, GAMES,
+ "{scenario} {mode:?} {players}p: only {} of {GAMES} games ran \
+ ({} setups refused) — every number in the cell is over a sample \
+ nobody chose",
+ c.games, c.setup_fails
+ );
+ assert_eq!(
+ c.played, GAMES,
+ "{scenario} {mode:?} {players}p: {} of {} games reached an outcome \
+ over five rounds",
+ c.played, c.games
+ );
+ c
+}
+
+fn main() {
+ println!("CB-WP-0047 — the four Scenarios, the three Modes\n");
+ println!("Greedy throughout; {GAMES} games per cell; seeds 0..{GAMES}.");
+ println!("`won` is group success; `win/g` is winning SEATS per game,");
+ println!("which is what separates the modes — SHARED GROUND names all");
+ println!("or none, the other two name a subset.\n");
+
+ let scenarios = games_ground::edition::scenarios().expect("Scenarios.csv");
+ // Every mode the kernel has. Adding a fourth without extending the
+ // panel is the omission this list exists to make loud.
+ let modes = [
+ ("SHARED GROUND ", ScoringMode::SharedGround),
+ ("COMMON PROBLEM ", ScoringMode::CommonProblem),
+ ("BONDED COALITIONS ", ScoringMode::BondedCoalitions),
+ ];
+
+ for players in [2u8, 4, 6] {
+ println!("{players} players");
+ println!(
+ " {:<32} {:<18} {:>5} {:>7} {:>6} {:>9}",
+ "scenario", "mode", "won", "win/g", "pts", "threshold"
+ );
+ for s in &scenarios {
+ for (label, mode) in &modes {
+ let c = sweep(&s.id, *mode, players);
+ println!(
+ " {:<32} {label} {:>5} {:>7.2} {:>6.1} {:>9}",
+ format!("{} {}", s.id, s.title),
+ c.group_success,
+ f64::from(c.winners) / f64::from(c.games),
+ f64::from(c.total) / f64::from(c.games),
+ c.threshold,
+ );
+ }
+ }
+ println!();
+ }
+
+ println!("SCN_01 and SCN_02 are the same board — identical suits and");
+ println!("values at every priority. Their rows are expected to MATCH,");
+ println!("and a divergence means one of the two decks was edited.");
+}
diff --git a/games/ground/src/edition.rs b/games/ground/src/edition.rs
index c942db7..a487460 100644
--- a/games/ground/src/edition.rs
+++ b/games/ground/src/edition.rs
@@ -474,6 +474,11 @@ pub fn darvo_stages() -> Result, String> {
pub struct ScenarioText {
pub id: String,
pub title: String,
+ /// What the game is ABOUT, in the edition's words (CB-WP-0047).
+ ///
+ /// Vendored and unread until the four scenarios became selectable:
+ /// with one scenario hardcoded there was nothing to tell apart.
+ pub premise: String,
pub surface_problem_id: String,
pub hidden_problem_ids: Vec,
/// GR-E01 by seat band, as the EDITION states it. The engine has its
@@ -494,6 +499,7 @@ pub fn scenarios() -> Result, String> {
out.push(ScenarioText {
id: t.get(row, "scenario_id")?.to_string(),
title: t.get(row, "title")?.to_string(),
+ premise: t.get(row, "premise")?.to_string(),
surface_problem_id: t.get(row, "surface_problem_id")?.to_string(),
hidden_problem_ids: t
.get(row, "hidden_problem_ids")?
@@ -1007,6 +1013,91 @@ mod card_text_tests {
///
/// Same shape as F24's solution deck. `inert`, role `default`: green
/// because they agree, red the moment either side moves.
+ /// **All four scenarios deal, and they are not the same board**
+ /// (CB-WP-0047).
+ ///
+ /// `setup` passed the literal `"SCN_01"`, so 15 of the 20 Problem
+ /// cards had never been dealt by anything. This deals every scenario
+ /// at every seat band and holds the deal to the Scenario card.
+ #[test]
+ fn every_scenario_deals_the_board_its_card_states() {
+ for s in scenarios().expect("Scenarios.csv") {
+ for (players, k) in [(2u8, 2usize), (4, 3), (6, 4)] {
+ let dealt =
+ deal(&s.id, players).unwrap_or_else(|e| panic!("{} at {players}p: {e}", s.id));
+ assert_eq!(
+ dealt.len(),
+ k + 1,
+ "{} at {players}p: Surface + {k} hidden is {} cards",
+ s.id,
+ k + 1
+ );
+ assert_eq!(
+ dealt.iter().filter(|p| p.surface).count(),
+ 1,
+ "{}: exactly one Surface Problem is dealt face up",
+ s.id
+ );
+ // The card states the available total; the deal must be
+ // able to reach the threshold or the board is unwinnable.
+ let available: u32 = dealt.iter().map(|p| u32::from(p.value)).sum();
+ let threshold = match players {
+ 0..=2 => s.thresholds.0,
+ 3..=4 => s.thresholds.1,
+ _ => s.thresholds.2,
+ };
+ assert!(
+ available >= threshold,
+ "{} at {players}p: {available} points available against a \
+ threshold of {threshold} — the group cannot win in principle",
+ s.id
+ );
+ }
+ }
+ }
+
+ /// **Two of the four scenarios are the same board** (CB-WP-0047).
+ ///
+ /// SCN_01 and SCN_02 have identical suit-and-value profiles at every
+ /// priority, so they play identically and differ only in prose. Not
+ /// a defect — a designed reskin is a legitimate choice — but it is a
+ /// fact about what "four scenarios" buys, and measuring them as four
+ /// independent boards would be measuring two of them twice.
+ ///
+ /// This is a **characterisation** test: it pins what is true today so
+ /// that a change to either deck is a decision rather than a drift.
+ #[test]
+ fn which_scenarios_are_mechanically_distinct() {
+ let profile = |id: &str| -> Vec<(u8, String, u8)> {
+ let mut v: Vec<_> = problems_of(id)
+ .expect(id)
+ .into_iter()
+ .map(|p| (p.priority, format!("{:?}", p.suit), p.value))
+ .collect();
+ v.sort();
+ v
+ };
+ assert_eq!(
+ profile("SCN_01"),
+ profile("SCN_02"),
+ "SCN_01 and SCN_02 diverged — they were identical boards; \
+ if this is intended, the panel now measures four real boards"
+ );
+ for pair in [
+ ("SCN_01", "SCN_03"),
+ ("SCN_01", "SCN_04"),
+ ("SCN_03", "SCN_04"),
+ ] {
+ assert_ne!(
+ profile(pair.0),
+ profile(pair.1),
+ "{} and {} became the same board",
+ pair.0,
+ pair.1
+ );
+ }
+ }
+
#[test]
fn the_engine_agrees_with_the_editions_own_numbers() {
for s in scenarios().expect("Scenarios.csv") {
diff --git a/games/ground/src/lib.rs b/games/ground/src/lib.rs
index d785e83..7a55309 100644
--- a/games/ground/src/lib.rs
+++ b/games/ground/src/lib.rs
@@ -200,6 +200,21 @@ pub struct GroundState {
/// variants existed still loads, as baseline — which is what it was.
#[serde(default)]
pub variant: Variant,
+ /// Which of the edition's four Scenarios is on the table
+ /// (CB-WP-0047).
+ ///
+ /// **The engine dealt `SCN_01` and only `SCN_01`** for the whole life
+ /// of this repo — the other three decks were vendored, gated, and
+ /// never played. Fifteen of the twenty Problem cards had never
+ /// reached a table.
+ ///
+ /// In the state for the same reason `variant` is: the threshold and
+ /// the whole board follow from it, so a recording that did not carry
+ /// it could not be replayed. `#[serde(default)]` returns `SCN_01`,
+ /// which is what every recording written before this field existed
+ /// actually played.
+ #[serde(default = "default_scenario")]
+ pub scenario: String,
/// GR-R09: set once the game has ended and scoring has run.
pub outcome: Option,
/// GR-S04/U4: retained so a deck reshuffle stays a pure function of
@@ -207,6 +222,53 @@ pub struct GroundState {
pub seed: u64,
}
+/// GR-E01 by seat band, as the engine used to hardcode it.
+///
+/// **Kept as the fallback, and only as the fallback.** All four
+/// scenarios print 5/7/9, so this and the edition agree today — which is
+/// exactly why a test comparing the two numbers proves nothing. See
+/// `threshold_from`.
+fn seat_band_threshold(seats: usize) -> u32 {
+ match seats {
+ 0..=2 => 5,
+ 3..=4 => 7,
+ _ => 9,
+ }
+}
+
+/// The threshold a Scenario card states, or the seat band if the edition
+/// does not have that card (CB-WP-0047).
+///
+/// **Split out so it can be tested against a card that disagrees.** The
+/// first version read the edition inline, and mutating it back to the
+/// hardcoded bands left every test green — because all four scenarios
+/// print 5/7/9 and the two paths are observationally identical on every
+/// input the edition can supply. A control that cannot separate the
+/// thing it is about from its fallback is not a control; taking a list
+/// as an argument lets one be written.
+#[cfg(feature = "scenarios")]
+fn threshold_from(list: &[crate::edition::ScenarioText], scenario: &str, seats: usize) -> u32 {
+ match list.iter().find(|s| s.id == scenario) {
+ Some(s) => {
+ let (two, three_four, five_six) = s.thresholds;
+ match seats {
+ 0..=2 => two,
+ 3..=4 => three_four,
+ _ => five_six,
+ }
+ }
+ None => seat_band_threshold(seats),
+ }
+}
+
+/// The scenario every recording written before CB-WP-0047 played.
+///
+/// **Not "the first scenario" — the one that was actually dealt.** The
+/// distinction matters if the edition ever reorders `Scenarios.csv`.
+fn default_scenario() -> String {
+ "SCN_01".to_string()
+}
+
/// GR-E02..E04: the three scoring modes.
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum ScoringMode {
@@ -1731,13 +1793,31 @@ impl GroundState {
events
}
- /// GR-E01: the Scenario threshold by player count (dataset 0.1).
+ /// GR-E01: the Scenario threshold, **off the Scenario card**.
+ ///
+ /// This was `match seats { 0..=2 => 5, 3..=4 => 7, _ => 9 }` — the
+ /// engine's own copy of a number four cards already print, which is
+ /// exactly what F25 was raised about. It was right only because all
+ /// four scenarios happen to agree, and a fifth scenario with a
+ /// different threshold would have been scored against the old one
+ /// with nothing to say so.
+ ///
+ /// The bands survive as the fallback for a state whose scenario the
+ /// edition cannot supply. **That path is unreachable through
+ /// `setup`**, which refuses an unknown scenario before dealing, and
+ /// a test holds it unreachable — a fallback nothing can reach is the
+ /// only kind that cannot silently answer for the real one.
+ #[cfg(feature = "scenarios")]
fn threshold(&self) -> u32 {
- match self.players.len() {
- 0..=2 => 5,
- 3..=4 => 7,
- _ => 9,
- }
+ let list = crate::edition::scenarios().unwrap_or_default();
+ threshold_from(&list, &self.scenario, self.players.len())
+ }
+
+ /// Without the `scenarios` feature there is no edition to read, so
+ /// the seat bands are the whole answer rather than a fallback.
+ #[cfg(not(feature = "scenarios"))]
+ fn threshold(&self) -> u32 {
+ seat_band_threshold(self.players.len())
}
/// GR-E01..E04: final scoring for the configured mode.
@@ -2055,6 +2135,61 @@ impl GroundState {
// GR-S04's deck now lives in `edition::solution_deck` (ADR-0011),
// beside the Problem data it is dealt against.
+/// Which Scenario a `Setup` preset names, and for how many seats
+/// (CB-WP-0047).
+///
+/// | preset | scenario |
+/// |---|---|
+/// | `standard-4p` | `SCN_01` |
+/// | `scn-03-4p` | `SCN_03` |
+///
+/// **`standard-Np` keeps meaning exactly what it meant**, which is not a
+/// convenience: twenty-six recorded scenarios name it, and a grammar
+/// that redefined it would have moved every one of their boards while
+/// their hashes still claimed to pin them (ADR-0019's discipline, and
+/// the reason `serde(default)` on the field returns `SCN_01`).
+///
+/// The seat count is checked here rather than after the deal, because
+/// `deal` refuses an unknown scenario and a preset naming the wrong seat
+/// count would otherwise be reported as a scenario problem.
+#[cfg(feature = "scenarios")]
+fn parse_preset(preset: &str, seats: u8) -> Result {
+ let suffix = format!("-{seats}p");
+ let Some(head) = preset.strip_suffix(&suffix) else {
+ return Err(format!(
+ "preset {preset:?} does not match {seats} players \
+ (expected {:?} or e.g. {:?})",
+ format!("standard{suffix}"),
+ format!("scn-02{suffix}"),
+ ));
+ };
+ let id = match head {
+ "standard" => default_scenario(),
+ other => {
+ let n = other.strip_prefix("scn-").ok_or_else(|| {
+ format!("preset {preset:?}: expected \"standard\" or \"scn-0N\", got {other:?}")
+ })?;
+ format!("SCN_{n}")
+ }
+ };
+ // **Checked against the edition, not against a pattern.** `SCN_09`
+ // matches the shape and is not a scenario; dealing it would fail
+ // later with a message about Problems rather than about the preset.
+ let known = crate::edition::scenarios()?;
+ if !known.iter().any(|s| s.id == id) {
+ return Err(format!(
+ "preset {preset:?} names {id}, which the edition does not have \
+ (it has {})",
+ known
+ .iter()
+ .map(|s| s.id.as_str())
+ .collect::>()
+ .join(", ")
+ ));
+ }
+ Ok(id)
+}
+
#[cfg(feature = "scenarios")]
impl ScenarioGame for GroundState {
/// GR-S01..S04. The `standard-Np` presets differ only in seat count;
@@ -2063,17 +2198,13 @@ impl ScenarioGame for GroundState {
/// modelled.
fn setup(setup: &Setup, seed: u64) -> Result {
let seats = setup.players;
- let expected = format!("standard-{seats}p");
- if setup.preset != expected {
- return Err(format!(
- "preset {:?} does not match {seats} players (expected {expected:?})",
- setup.preset
- ));
- }
+ let scenario = parse_preset(&setup.preset, seats)?;
// GR-S01 as ruled 2026-08-04: Surface always, plus hidden
// priorities 1..=k. The values and suits come from the edition
- // (ADR-0011); the engine used to invent both.
- let dealt = crate::edition::deal("SCN_01", seats)?;
+ // (ADR-0011); the engine used to invent both. **And now the
+ // scenario does too** — this argument was the literal `"SCN_01"`
+ // for the whole life of the repo (CB-WP-0047).
+ let dealt = crate::edition::deal(&scenario, seats)?;
let mut rng = ChaChaRng::from_seed(Seed(seed));
// GR-S04: shuffle first, then deal, so the deal is seed-derived.
@@ -2139,6 +2270,7 @@ impl ScenarioGame for GroundState {
support_responses: BTreeMap::new(),
darvo_targets: BTreeMap::new(),
mode: ScoringMode::SharedGround,
+ scenario,
// Baseline. The driver overwrites this after setup and
// before the hash is taken, which is the route `mode` uses
// (`table.rs`) — so a recorded session replays under the
@@ -3343,6 +3475,7 @@ mod tests {
darvo_targets: BTreeMap::new(),
mode: ScoringMode::SharedGround,
variant: Variant::Baseline,
+ scenario: default_scenario(),
outcome: None,
seed: 0,
}
@@ -3380,6 +3513,204 @@ mod tests {
.unwrap()
}
+ /// **The mastery rating counts cards; the Mode card counts points**
+ /// (F28, CB-WP-0047).
+ ///
+ /// MODE_COOP reads: *"All claimed Problem cards form one shared
+ /// score. … For a mastery rating, subtract 1 for each Blame token
+ /// still in play and 1 for each Denied Problem."*
+ ///
+ /// The shared score is the claimed **value** — `total`, which is what
+ /// the threshold is compared against two lines earlier. `mastery`
+ /// subtracts the same penalties from the claimed **count**. Both
+ /// readings fit the sentence; they disagree on every game where a
+ /// 3-point Problem is claimed, which is most of them.
+ ///
+ /// **A characterisation test, not a correction.** Scoring is
+ /// `ground-game`'s to rule on (ADR-0015). This pins what the engine
+ /// does today and shows the size of the disagreement, so the ruling
+ /// has a number in front of it.
+ #[test]
+ fn the_mastery_rating_and_the_shared_score_count_different_things() {
+ let mut s = setup_3p(11);
+ s.mode = ScoringMode::SharedGround;
+ // Two claimed Problems worth 2 and 3 — five points, two cards.
+ let seats: Vec = s.players.keys().copied().collect();
+ s.problems.insert(
+ 1,
+ ProblemState {
+ suit: Suit::Repair,
+ value: 2,
+ face_up: true,
+ denied: false,
+ claimed_by: Some(seats[0]),
+ protected_this_round: false,
+ owner: None,
+ scope: None,
+ },
+ );
+ s.problems.insert(
+ 2,
+ ProblemState {
+ suit: Suit::Change,
+ value: 3,
+ face_up: true,
+ denied: false,
+ claimed_by: Some(seats[1]),
+ protected_this_round: false,
+ owner: None,
+ scope: None,
+ },
+ );
+ let o = s.score();
+ assert_eq!(o.total, 5, "the shared score is claimed VALUE");
+ assert_eq!(
+ o.mastery,
+ Some(2),
+ "mastery is the claimed COUNT, with no penalties in play"
+ );
+ // The disagreement, stated as a number rather than as a worry.
+ assert_ne!(
+ i32::try_from(o.total).unwrap(),
+ o.mastery.unwrap(),
+ "the two readings agree on this board, so F28 has no bite here \
+ and the example needs replacing"
+ );
+ }
+
+ /// **Every scenario is reachable through `setup`** (CB-WP-0047).
+ ///
+ /// `setup` passed the literal `"SCN_01"`. `deal` had taken a
+ /// scenario id since the day it was written and no caller ever
+ /// passed a different one — the parameter was the whole seam and it
+ /// sat unused, which is why three decks went unplayed without any
+ /// gate noticing.
+ #[test]
+ fn every_scenario_can_be_set_up_and_carries_its_own_board() {
+ use cb_game_runtime::{ScenarioGame, Setup};
+ let mut boards = std::collections::BTreeSet::new();
+ for s in crate::edition::scenarios().expect("Scenarios.csv") {
+ let preset = if s.id == "SCN_01" {
+ "standard-4p".to_string()
+ } else {
+ format!("scn-{}-4p", s.id.rsplit('_').next().unwrap())
+ };
+ let state = GroundState::setup(
+ &Setup {
+ players: 4,
+ preset: preset.clone(),
+ patch: Default::default(),
+ },
+ 7,
+ )
+ .unwrap_or_else(|e| panic!("{preset}: {e}"));
+ assert_eq!(state.scenario, s.id, "{preset} dealt the wrong scenario");
+ boards.insert(
+ state
+ .problems
+ .values()
+ .map(|p| (format!("{:?}", p.suit), p.value))
+ .collect::>(),
+ );
+ }
+ // SCN_01 and SCN_02 are the same board by design, so four
+ // scenarios yield THREE distinct boards. Asserting 4 here would
+ // be asserting a fact about the edition that is not true.
+ assert_eq!(
+ boards.len(),
+ 3,
+ "the four scenarios yield {} distinct boards; SCN_01 and SCN_02 \
+ were identical and the other two differ",
+ boards.len()
+ );
+ }
+
+ /// The preset grammar, including what it must keep meaning.
+ #[test]
+ fn the_preset_names_a_scenario_and_a_seat_count() {
+ assert_eq!(parse_preset("standard-4p", 4).unwrap(), "SCN_01");
+ assert_eq!(parse_preset("scn-03-6p", 6).unwrap(), "SCN_03");
+ // Twenty-six recordings name `standard-Np`; if this ever stopped
+ // meaning SCN_01 every one of them would replay a different board
+ // while its hash still claimed to pin the old one.
+ assert_eq!(parse_preset("standard-2p", 2).unwrap(), "SCN_01");
+ // A preset that looks like an id but names no card is refused
+ // HERE, so the error is about the preset and not about Problems.
+ assert!(parse_preset("scn-09-4p", 4).is_err());
+ assert!(parse_preset("standard-4p", 3).is_err());
+ assert!(parse_preset("nonsense-4p", 4).is_err());
+ }
+
+ /// **The threshold comes off the Scenario card** (CB-WP-0047, F25).
+ #[test]
+ fn the_threshold_is_the_editions_and_the_fallback_is_unreachable() {
+ use cb_game_runtime::{ScenarioGame, Setup};
+ for s in crate::edition::scenarios().expect("Scenarios.csv") {
+ for (players, want) in [
+ (2u8, s.thresholds.0),
+ (4, s.thresholds.1),
+ (6, s.thresholds.2),
+ ] {
+ let preset = if s.id == "SCN_01" {
+ format!("standard-{players}p")
+ } else {
+ format!("scn-{}-{players}p", s.id.rsplit('_').next().unwrap())
+ };
+ let state = GroundState::setup(
+ &Setup {
+ players,
+ preset,
+ patch: Default::default(),
+ },
+ 3,
+ )
+ .unwrap();
+ assert_eq!(
+ state.threshold(),
+ want,
+ "{} at {players}p: the engine scored against its own number",
+ s.id
+ );
+ }
+ }
+ // **The real control.** Every shipped scenario prints 5/7/9, so
+ // the loop above passes whether the number came off the card or
+ // off the old hardcoded bands — verified by mutation: reverting
+ // to the bands left it green. This asks a card that DISAGREES.
+ let odd = crate::edition::ScenarioText {
+ id: "SCN_XX".into(),
+ title: "a card that disagrees".into(),
+ premise: String::new(),
+ surface_problem_id: String::new(),
+ hidden_problem_ids: vec![],
+ thresholds: (4, 6, 8),
+ starting_stress: String::new(),
+ round_track: String::new(),
+ };
+ for (seats, want) in [(2usize, 4), (4, 6), (6, 8)] {
+ assert_eq!(
+ threshold_from(std::slice::from_ref(&odd), "SCN_XX", seats),
+ want,
+ "the threshold did not come off the Scenario card"
+ );
+ }
+ // And the fallback is what answers for a card the edition lacks.
+ assert_eq!(threshold_from(&[], "SCN_XX", 4), 7);
+
+ // That fallback is unreachable through `setup`, which refuses an
+ // unknown scenario before dealing. A fallback nothing can reach
+ // is the only kind that cannot silently answer for the real one.
+ assert!(GroundState::setup(
+ &Setup {
+ players: 4,
+ preset: "scn-09-4p".into(),
+ patch: Default::default(),
+ },
+ 3
+ )
+ .is_err());
+ }
+
/// GR-S02/S04: every seat starts at Stress 2 with two dealt cards,
/// and the deck loses exactly what was dealt.
#[test]
diff --git a/games/ground/src/view.rs b/games/ground/src/view.rs
index e5e8ac5..b8ea886 100644
--- a/games/ground/src/view.rs
+++ b/games/ground/src/view.rs
@@ -48,6 +48,14 @@ pub struct GroundView {
/// change as "no changes" after playing the default.
#[serde(default)]
pub variant: crate::Variant,
+ /// Which Scenario is on the table (CB-WP-0047).
+ ///
+ /// The player was told the premise by nothing: the same four boards
+ /// would have arrived unannounced. Same reasoning as `variant` —
+ /// CB-WP-0044 shipped a rules change the page could not name and the
+ /// maintainer reported it as "no changes".
+ #[serde(default = "crate::default_scenario")]
+ pub scenario: String,
pub players: BTreeMap,
pub relations: BTreeMap,
pub problems: BTreeMap,
@@ -178,6 +186,7 @@ impl Project for GroundState {
step: self.step,
mode: self.mode,
variant: self.variant,
+ scenario: self.scenario.clone(),
players: self
.players
.iter()
diff --git a/specs/FindingRegister.md b/specs/FindingRegister.md
index 7e5c81c..e1bd41a 100644
--- a/specs/FindingRegister.md
+++ b/specs/FindingRegister.md
@@ -54,9 +54,36 @@ kinds, states and metrics: [`GameDesign.md`](GameDesign.md). Reported by
| F23 | inconsistent | applied | decisions/ADR-0017-chaos-window-2-verdict.md | counterexample | 2026-08-07 | clay-borg |
| F22 | underdetermined | withdrawn | games_ground::edition::supply_tests::play_never_exceeds_the_components_the_box_holds | counterexample | 2026-08-07 | clay-borg |
| F26 | inert | raised | `crates/cb-render-html/src/lib.rs::a_scoped_table_says_what_a_scope_does` | counterexample | 2026-08-08 | ground-game |
+| F27 | unplayed | raised | `games/ground/examples/scenario-panel.rs` | counterexample | 2026-08-08 | clay-borg |
+| F28 | underdetermined | raised | `games_ground::tests::the_mastery_rating_and_the_shared_score_count_different_things` | counterexample | 2026-08-08 | ground-game |
+- **F27 — the two competitive modes are scoring lenses over cooperative
+ play.** `scenario-panel` finds group success *exactly* equal across
+ SHARED GROUND, COMMON PROBLEM and BONDED COALITIONS in all 36 cells.
+ Correct arithmetic: `GreedyPolicy` maximises the group outcome and
+ never reads `state.mode`, so the same games are played and only the
+ winner set is carved differently. **Whether a mode changes how GROUND
+ is played is therefore untested**, and cannot be tested by any panel
+ built from the current policies — it needs one that plays for personal
+ score. `unplayed` rather than `inert`: the modes score correctly, they
+ have simply never faced a seat that wanted to win alone.
+
+- **F28 — SHARED GROUND's mastery rating counts cards where the mode
+ card counts points.** *"All claimed Problem cards form one shared score.
+ … For a mastery rating, subtract 1 for each Blame token still in play
+ and 1 for each Denied Problem."* The shared score is claimed **value**
+ (`total`); `mastery` subtracts the same penalties from the claimed
+ **count**. Both readings fit the sentence and they differ on every game
+ where a 3-point Problem is claimed. Ours to report, theirs to rule.
+
+ **Sensitivity:** vary only the point value of the claimed Problems and
+ the gap moves with `sum(value) - count`. The two readings agree exactly
+ when every claimed Problem is worth 1 — no Problem in the edition is —
+ or when nothing is claimed, which is a loss. Everything else is held
+ fixed: same board, same penalties, same threshold.
+
- **F26 — a package that adds a FILE is invisible, where a package that
adds a column is not.** `h2-scoped-problem-stress` ships
`Rules_Text.csv` — twenty-two passages of player-facing rules, including
diff --git a/tools/cb-play/src/hotseat.rs b/tools/cb-play/src/hotseat.rs
index 029e216..4f6160e 100644
--- a/tools/cb-play/src/hotseat.rs
+++ b/tools/cb-play/src/hotseat.rs
@@ -1288,6 +1288,7 @@ mod tests {
serve: Some(0),
trial: None,
mode: games_ground::ScoringMode::SharedGround,
+ scenario: "SCN_01".into(),
pace: crate::table::Pace::Speed,
variant: games_ground::Variant::Baseline,
},
@@ -1479,6 +1480,7 @@ mod tests {
serve: Some(0),
trial: None,
mode: games_ground::ScoringMode::SharedGround,
+ scenario: "SCN_01".into(),
pace: crate::table::Pace::Speed,
variant: games_ground::Variant::Baseline,
},
diff --git a/tools/cb-play/src/inspect.rs b/tools/cb-play/src/inspect.rs
index 827d465..a05da88 100644
--- a/tools/cb-play/src/inspect.rs
+++ b/tools/cb-play/src/inspect.rs
@@ -140,12 +140,18 @@ fn render_player(id: PlayerId, p: &PlayerView, is_viewer: bool) -> String {
pub fn render(view: &GroundView) -> String {
let mut out = String::new();
out.push_str(&format!(
- "\nround {} step {:?} lead {} mode {:?} rules {} deck {} discard [{}]\n",
+ "\nround {} step {:?} lead {} mode {:?} rules {} scenario {} \
+ deck {} discard [{}]\n",
view.round,
view.step,
seat_name(view.lead),
view.mode,
view.variant.id(),
+ // CB-WP-0047: WHICH of the four boards. The id, not the title,
+ // because this is the machine-facing view — `cb-play inspect` is
+ // read by a maintainer diffing states, where the HTML page is
+ // read by a player and shows the printed title.
+ view.scenario,
view.solution_deck_len,
cards(&view.solution_discard),
));
@@ -497,6 +503,7 @@ mod tests {
// CB-WP-0044: the inspector must say which rules it is replaying,
// for the same reason the page must.
("variant", "rules ground-darvo-r0"),
+ ("scenario", "scenario SCN_"),
("viewer", "(you)"),
("solution_deck_len", "deck 11"),
("solution_discard.*.suit", "discard [Repair, Change]"),
@@ -614,6 +621,7 @@ mod tests {
lead: p2,
step: RoundStep::Resolve,
mode: ScoringMode::BondedCoalitions,
+ scenario: "SCN_01".into(),
players,
relations: BTreeMap::from([
(Pair::new(p1, p2), Relation::Bond),
@@ -770,6 +778,7 @@ mod tests {
serve: None,
trial: None,
mode: games_ground::ScoringMode::SharedGround,
+ scenario: "SCN_01".into(),
pace: crate::table::Pace::Speed,
variant: games_ground::Variant::Baseline,
};
diff --git a/tools/cb-play/src/main.rs b/tools/cb-play/src/main.rs
index 2f4e0d3..83a8dd8 100644
--- a/tools/cb-play/src/main.rs
+++ b/tools/cb-play/src/main.rs
@@ -62,6 +62,61 @@ enum Mode {
},
}
+/// A scenario as the player names it, as the edition names it.
+///
+/// Accepts `2`, `02`, `scn-02`, `SCN_02` and the title's first word, so
+/// that `--scenario confidence` works — the ids are the edition's
+/// vocabulary and *"Broken Confidence"* is the player's.
+///
+/// **Validated against the edition, never against a pattern.** `SCN_09`
+/// looks exactly like an id; the error names what the edition has.
+fn normalise_scenario(v: &str) -> Result {
+ let known = games_ground::edition::scenarios()?;
+ let want = v.trim().to_ascii_lowercase();
+ let digits: String = want.chars().filter(|c| c.is_ascii_digit()).collect();
+ let by_id = |s: &games_ground::edition::ScenarioText| {
+ s.id.to_ascii_lowercase() == want
+ || (!digits.is_empty()
+ && s.id
+ .rsplit('_')
+ .next()
+ .is_some_and(|n| n.parse::().ok() == digits.parse::().ok()))
+ };
+ if let Some(s) = known.iter().find(|s| by_id(s)) {
+ return Ok(s.id.clone());
+ }
+ // By title, so the four cards can be named by what is printed on them.
+ if let Some(s) = known
+ .iter()
+ .find(|s| s.title.to_ascii_lowercase().contains(&want) && !want.is_empty())
+ {
+ return Ok(s.id.clone());
+ }
+ Err(format!(
+ "unknown --scenario {v:?} (the edition has {})",
+ known
+ .iter()
+ .map(|s| format!("{} {:?}", s.id, s.title))
+ .collect::>()
+ .join(", ")
+ ))
+}
+
+/// `scn-02-4p`, or `standard-4p` for the scenario every recording plays.
+///
+/// **`SCN_01` keeps the old preset string.** Twenty-six recorded
+/// scenarios name `standard-Np`; emitting `scn-01-Np` for the same board
+/// would have made every one of them unreplayable to no purpose.
+pub fn scenario_preset(scenario: &str, players: u8) -> String {
+ if scenario == "SCN_01" {
+ return format!("standard-{players}p");
+ }
+ format!(
+ "scn-{}-{players}p",
+ scenario.rsplit('_').next().unwrap_or(scenario)
+ )
+}
+
fn parse_args(argv: &[String]) -> Result {
let mut config = Config::default();
let mut source: Option = None;
@@ -141,6 +196,16 @@ fn parse_args(argv: &[String]) -> Result {
// cheap now where a retrofit would not be.
// CB-WP-0038: ground-game names these in
// `editions/catalog.yaml`; `--variant` takes that id.
+ // CB-WP-0047: WHICH SCENARIO. `deal` has taken a scenario id
+ // since it was written; the call site passed the literal
+ // "SCN_01", so three of four decks were unreachable from the
+ // driver — the same shape as `--mode` before F14.
+ "--scenario" => {
+ play_flags.push(flag.into());
+ let v = value(i, argv, flag)?;
+ config.scenario = normalise_scenario(&v)?;
+ i += 2;
+ }
"--variant" => {
play_flags.push(flag.into());
config.variant = value(i, argv, flag)?.parse()?;
@@ -314,6 +379,7 @@ mod tests {
serve: None,
trial: None,
mode: games_ground::ScoringMode::SharedGround,
+ scenario: "SCN_01".into(),
pace: table::Pace::Speed,
variant: games_ground::Variant::Baseline,
};
@@ -361,6 +427,7 @@ mod tests {
serve: None,
trial: None,
mode: games_ground::ScoringMode::SharedGround,
+ scenario: "SCN_01".into(),
pace,
variant: games_ground::Variant::Baseline,
};
@@ -430,6 +497,7 @@ mod tests {
serve: None,
trial: None,
mode: games_ground::ScoringMode::SharedGround,
+ scenario: "SCN_01".into(),
pace: table::Pace::Speed,
variant: games_ground::Variant::Baseline,
};
@@ -496,6 +564,7 @@ mod tests {
serve: None,
trial: None,
mode: games_ground::ScoringMode::SharedGround,
+ scenario: "SCN_01".into(),
pace: table::Pace::Speed,
variant: games_ground::Variant::Baseline,
};
@@ -560,6 +629,7 @@ mod tests {
serve: None,
trial: None,
mode: games_ground::ScoringMode::SharedGround,
+ scenario: "SCN_01".into(),
pace: table::Pace::Speed,
variant: games_ground::Variant::Baseline,
};
diff --git a/tools/cb-play/src/table.rs b/tools/cb-play/src/table.rs
index 83239c4..dfefde6 100644
--- a/tools/cb-play/src/table.rs
+++ b/tools/cb-play/src/table.rs
@@ -47,6 +47,14 @@ pub struct Config {
/// patch, so two of the three shipped modes were unreachable from the
/// only way anyone actually plays.
pub mode: games_ground::ScoringMode,
+ /// Which of the edition's four Scenarios to deal (CB-WP-0047).
+ ///
+ /// **The same shape as `mode` and the same history.** `setup` dealt
+ /// the literal `"SCN_01"`, so three of the four vendored decks — 15
+ /// of the 20 Problem cards — had never reached a table through the
+ /// only way anyone actually plays. Stored as the preset's scenario
+ /// id so the kernel does the validating.
+ pub scenario: String,
/// How much ornamentation is performed (CB-WP-0036,
/// [`specs/Ornamentation.md`]).
///
@@ -103,6 +111,7 @@ impl Default for Config {
serve: None,
trial: None,
mode: games_ground::ScoringMode::SharedGround,
+ scenario: "SCN_01".into(),
pace: Pace::Speed,
variant: games_ground::Variant::Baseline,
}
@@ -399,7 +408,7 @@ fn run_game<'a, R: BufRead + 'a, W: Write + 'a>(
) -> Result<(Summary, crate::hotseat::EndChoice), String> {
let setup = Setup {
players: config.players,
- preset: format!("standard-{}p", config.players),
+ preset: crate::scenario_preset(&config.scenario, config.players),
patch: Default::default(),
};
let mut initial = ::setup(&setup, config.seed)?;
diff --git a/tools/design.py b/tools/design.py
index 4ef04b3..f705015 100644
--- a/tools/design.py
+++ b/tools/design.py
@@ -53,7 +53,16 @@ def reproduced(row, root=ROOT):
"""GameDesign §1.1: the artifact must resolve. A named test is admitted
by its `crate::module::name` shape; anything else must be a real path
on disk, and that is checked by stat, not by prefix."""
- p = row["repro"]
+ # **Backticks are markdown, not part of the path** (CB-WP-0047).
+ #
+ # The register writes code spans, and every NAMED TEST survived that
+ # because `::` short-circuits before the stat. A backticked FILE path
+ # did not: os.path.exists("`games/.../x.rs`") is False, so a
+ # reproduction sitting on disk was reported as absent and its finding
+ # counted as debt against a target of zero. Same shape as ADR-0018:
+ # the computation was right and the string was not what it looked
+ # like. Found by F27, whose panel existed and did not count.
+ p = row["repro"].strip().strip("`").strip()
if p in ("", "—", "-"):
return False
if "::" in p: # a named test
@@ -169,6 +178,17 @@ def self_test():
check("a named test counts", reproduced({"repro": "games_ground::view::tests::a_spectator_sees_no_hands"}))
check("an em-dash does not count", not reproduced({"repro": "—"}))
+ # CB-WP-0047: the register writes CODE SPANS, so this is fed markdown.
+ check("a BACKTICKED path that exists counts",
+ reproduced({"repro": "`scenarios/ground/gr-p05-solve-legality.yaml`"}),
+ "a reproduction on disk was reported as absent, and the finding "
+ "counted as debt against a target of zero")
+ check("a backticked path that does NOT exist still does not count",
+ not reproduced({"repro": "`scenarios/ground/nope.yaml`"}),
+ "stripping the span must not turn the check off")
+ check("a backticked em-dash does not count",
+ not reproduced({"repro": "`—`"}))
+
# The distinction the backfill discovered: a green DEFAULT is expected,
# a green COUNTEREXAMPLE is the alarm. Without this the report cried
# wolf over U2, whose scenario is green precisely because the
diff --git a/workplans/CB-WP-0047-all-four-boards-and-all-three-modes.md b/workplans/CB-WP-0047-all-four-boards-and-all-three-modes.md
new file mode 100644
index 0000000..bc89a7e
--- /dev/null
+++ b/workplans/CB-WP-0047-all-four-boards-and-all-three-modes.md
@@ -0,0 +1,169 @@
+---
+id: CB-WP-0047
+kind: product
+title: "All four boards and all three modes"
+status: done
+---
+
+# Purpose
+
+```
+structural tier M (changes the state and therefore the recording, and
+ moves a reported number -- the threshold -- from the
+ engine to the edition)
+declared tier M
+```
+
+> *"lets have a look at the cards and the rules to those cards again and
+> implement all the scenarios and modes"*
+
+## What was actually missing
+
+The two halves turned out to be very different sizes.
+
+**The modes were already implemented.** `ScoringMode`'s three arms all
+score, `--mode` reaches them, F14 fixed the driver. What was missing was
+that **nothing had ever compared them**, and the page never named them —
+see below.
+
+**The scenarios were not implemented at all.** `edition::deal` has taken a
+`scenario_id` since the day it was written, and the only caller passed the
+literal `"SCN_01"`:
+
+```rust
+let dealt = crate::edition::deal("SCN_01", seats)?;
+```
+
+**The seam was the whole mechanism and it sat unused.** 15 of the 20
+Problem cards had never been dealt by anything — not a gate, not a panel,
+not a player. Nothing was red, because nothing asked.
+
+## Task: deal every board, name every mode
+
+```task
+id: CB-WP-0047-T01
+status: done
+priority: high
+```
+
+### The scenario is state
+
+`GroundState.scenario`, `#[serde(default = "default_scenario")]` → `SCN_01`.
+In the state for the same reason `variant` is (CB-WP-0038): the board and
+the threshold follow from it, so a recording that did not carry it could
+not be replayed.
+
+**`standard-Np` keeps meaning `SCN_01`.** Twenty-six recorded scenarios
+name that preset; a grammar that redefined it would have moved every one
+of their boards while their hashes still claimed to pin them. `scn-03-4p`
+names the rest. `--scenario` accepts `3`, `scn-03`, `SCN_03` or
+`confidence` — ids are the edition's vocabulary, *"Broken Confidence"* is
+the player's — and is validated against the edition, never a pattern, so
+`SCN_09` is refused by name.
+
+### The threshold now comes off the Scenario card
+
+`threshold()` was `match seats { 0..=2 => 5, 3..=4 => 7, _ => 9 }` — the
+engine's own copy of a number four cards already print, which is what F25
+was raised about.
+
+**The first version of this control was worthless and mutation said so.**
+Reverting to the hardcoded bands left every test green, because all four
+scenarios print 5/7/9 and the two paths are observationally identical on
+every input the edition can supply. A control that cannot separate the
+thing it is about from its fallback is not a control.
+
+Fixed by splitting `threshold_from(list, scenario, seats)`, which can be
+handed a card that **disagrees** (4/6/8). That test goes red under the
+mutation; the loop over real scenarios never could.
+
+### The page names the mode, the board, and what winning means
+
+The header read `scoring CommonProblem` — the Rust variant's name, where
+the Mode card is titled *"COMMON PROBLEM, PERSONAL EDGE"*. **CB-WP-0034
+deleted this exact defect from the move buttons** and it was still
+standing on the one line that says what winning means.
+
+**And the coverage probe was holding it in place.** `("mode", "scoring
+BondedCoalitions")` — a probe matching `Debug` output, which went red the
+moment the defect was fixed. That is the **third** time this shape has
+been found (CB-WP-0024, CB-WP-0034, here), and it is now specific enough
+to state as a rule: *a probe that names a rendering pins that rendering;
+probes name facts.*
+
+The page now carries the Scenario's premise (*what happened*) and the Mode
+card's rules text (*how this game is won*) — including the **tiebreak**,
+which is a rule a player can play for: "lower Stress, then more Bonds"
+changes what a losing seat should do in round five, and it lived in a
+column nothing read.
+
+### Mutations
+
+| mutation | what went red |
+|---|---|
+| `setup` deals `"SCN_01"` regardless of preset | *"the four scenarios yield 1 distinct board"* |
+| `threshold_from` ignores the card | *"the threshold did not come off the Scenario card"* |
+| header back to `{mode:?}` | *"the page shows the Rust variant's name"* |
+
+**Done 2026-08-08.** `make all` green. Verified live on
+`make ground SCENARIO=4 MODE=coalitions`.
+
+## What the panel found
+
+`make panels` gained `scenario-panel`: 4 scenarios × 3 modes × 3 seat
+bands, greedy throughout, 100 games per cell.
+
+**1. Two of the four scenarios are the same board.** SCN_01 and SCN_02
+have identical suits and values at every priority; every cell matches
+exactly. Not a defect — a designed reskin is a legitimate choice — but
+"four scenarios" buys **three** boards, and a panel that measured them as
+four independent boards would be measuring one of them twice. Pinned by a
+characterisation test so a future divergence is a decision, not a drift.
+
+**2. SCN_04 is the hard board at 2 players** — 52% group success against
+67% and 73%. It is the only deck that needs **two Repair** solutions in
+the 2p deal, and the 2p Solution draw cannot always supply them. The seat
+band the thresholds treat as uniform is not uniform across boards.
+
+**3. The three modes produce identical play.** Group success is *exactly*
+equal across all three modes in every cell. That is correct arithmetic and
+a real finding: `GreedyPolicy` maximises the group outcome and never
+consults `state.mode`, so **the two competitive modes are scoring lenses
+over cooperative play**. `win/g` differs only by how the winner set is
+carved from the same games. Whether COMMON PROBLEM and BONDED COALITIONS
+change how the game is *played* is untested and cannot be tested by this
+panel — it needs a policy that plays for personal score. Filed as F27.
+
+**4. Every board is a formality at 6 players** — 100% group success in all
+twelve cells. Consistent with F17's shape and with H2's motivation; noted,
+not acted on.
+
+## Not done here
+
+- **No policy plays for personal score**, so F27 stands open and the two
+ competitive modes remain unexercised as *incentives*. This is the
+ largest remaining gap and it is the natural next pass.
+- **SHARED GROUND's mastery rating counts CLAIMED CARDS, not points.**
+ The Mode card says *"All claimed Problem cards form one shared score …
+ subtract 1 for each Blame token still in play and 1 for each Denied
+ Problem"* — and the shared score is the claimed **value**, while
+ `mastery` subtracts from the claimed **count**. Underdetermined rather
+ than plainly wrong; raised for `ground-game` rather than changed here,
+ because scoring is theirs to rule on.
+- **The trial log stamps the variant (CB-WP-0046) but not the scenario or
+ the mode.** A note from SCN_04 coalitions is indistinguishable from a
+ baseline SHARED GROUND note, which is the same defect one pass later in
+ two new axes. The marker already carries attributes, so this is small.
+- **`design.py` reported an existing reproduction as absent.** It stats
+ `row["repro"]` directly, and the register writes **code spans** — so a
+ backticked file path was `os.path.exists("`games/…/x.rs`")` = False.
+ Named tests survived because `::` short-circuits before the stat, which
+ is why it had never shown. F27's panel existed and counted as debt
+ against a target of zero. ADR-0018's shape again: right computation,
+ wrong string. Fixed with three checks, including that stripping the
+ span must not turn the check off.
+
+- **`catalog.yaml` and both `VARIANT.md`s were re-vendored in this pass**: `ground-game` moved H2
+ from `experimental` to `measured`, `decision: keep-as-experiment`,
+ citing our CB-EV-0032. That is their ruling on the previous pass, not
+ work done here.