diff --git a/tasks/enduro-trails/prototype/app.py b/tasks/enduro-trails/prototype/app.py
index e688be4..234bf1b 100644
--- a/tasks/enduro-trails/prototype/app.py
+++ b/tasks/enduro-trails/prototype/app.py
@@ -913,7 +913,7 @@ async def _build_segmented_route(req: RouteRequest) -> dict:
         except Exception as e:
             raise HTTPException(503, f"OSRM недоступен: {e}")
 
-        # Retry TooBig → 3 → 1
+        # Retry TooBig → 3 → 2 → 1
         if data.get("code") == "TooBig":
             url2 = url.replace("alternatives=5", "alternatives=3")
             try:
@@ -922,6 +922,14 @@ async def _build_segmented_route(req: RouteRequest) -> dict:
                     data = resp.json()
             except Exception as e:
                 raise HTTPException(503, f"OSRM недоступен: {e}")
+        if data.get("code") == "TooBig":
+            url2b = url.replace("alternatives=5", "alternatives=2")
+            try:
+                async with httpx.AsyncClient(timeout=60) as client:
+                    resp = await client.get(url2b)
+                    data = resp.json()
+            except Exception as e:
+                raise HTTPException(503, f"OSRM недоступен: {e}")
         if data.get("code") == "TooBig":
             url1 = url.replace("alternatives=5", "alternatives=false")
             try: