Prototype unlimited alliance variant

game/allied-separation.ts

@@ -39,7 +39,7 @@ function currentShipmentAllies(context: ShipmentContext, player: OccupancySeat):
     id: seat.id, ally: seat.ally ?? null, allySinceTurn: seat.allySinceTurn,
   }));
   const groups = coalitionGroups(seats, context.coalitionState);
-  if (groups.some(group => group.members.length === 3) &&
+  if (groups.some(group => group.members.length >= 3) &&
       (context.advanced || context.players.some(seat => seat.faction === 'ecaz')))
     throw new Error('Three-member shipment rules require Basic play without Ecaz.');
   return coalitionAllies(seats, context.coalitionState, player.id);