Prototype unlimited alliance variant

game/board-resolution-quote.ts

@@ -42,7 +42,7 @@ function validateBoardCoalitions(g: BoardContext) {
   if (g.coalitionState === undefined) return;
   try {
     for (const group of coalitionGroups(g.players, g.coalitionState))
-      if (group.members.length === 3 && (g.advanced || g.players.some(player => player.faction === 'ecaz')))
+      if (group.members.length >= 3 && (g.advanced || g.players.some(player => player.faction === 'ecaz')))
         throw new Error('Three-member board rules require Basic play without Ecaz.');
   } catch (error) {
     throw new BoardResolutionError((error as Error).message);