Connect staged Advanced classic group alliances

game/victory-progress.ts

@@ -12,6 +12,7 @@ import { isDiscoveryLocationId, JACURUTU_SIETCH } from './discoveries';
 import type { TwoPlayerControllers } from './two-player-controllers';
 import { allianceVictoryTarget } from './alliance-victory-option';
 import { coalitionGroups } from './coalition-alliance';
+import { FACTIONS } from './catalog';
 
 export type StrongholdProgress = {
   player: string;
@@ -38,9 +39,8 @@ function requireProgress(
   if (!condition) throw new VictoryProgressError(message);
 }
 
-/** Ordered side membership for the bounded coalition victory quote. Three-member
- * Advanced and Ecaz combinations remain unavailable until their board rules
- * and faction interactions are integrated. No game mode is enabled here. */
+/** Ordered side membership for the bounded coalition victory quote. Advanced
+ * larger groups are scoped to classic rosters; no game mode is enabled here. */
 export function victoryMembers(g: BoardContext, player: string): string[] {
   const seat = g.players.find(candidate => candidate.id === player);
   requireProgress(seat, 'Victory needs a seated player.');
@@ -48,8 +48,9 @@ export function victoryMembers(g: BoardContext, player: string): string[] {
     return g.order.filter(member => member === player || member === seat.ally);
   const groups = coalitionGroups(g.players, g.coalitionState);
   requireProgress(!groups.some(group => group.members.length >= 3 &&
-    (g.advanced || g.players.some(candidate => candidate.faction === 'ecaz'))),
-  'Three-member victory rules require Basic play without Ecaz.');
+    (g.players.some(candidate => candidate.faction === 'ecaz') || g.advanced &&
+      g.players.some(candidate => !FACTIONS.some(faction => faction.id === candidate.faction && faction.expansion === 'base')))),
+  'Larger alliance victory rules require a supported roster without Ecaz.');
   const group = groups.find(candidate => candidate.members.includes(player));
   return g.order.filter(member => member === player || !!group?.members.includes(member));
 }