diff --git a/tasks/enduro-trails/prototype/app.py b/tasks/enduro-trails/prototype/app.py
index 61d69a1..c1d1f2b 100644
--- a/tasks/enduro-trails/prototype/app.py
+++ b/tasks/enduro-trails/prototype/app.py
@@ -502,32 +502,48 @@ async def post_route(req: RouteRequest):
         raise HTTPException(503, f"OSRM недоступен: {e}")
 
     # OSRM возвращает TooBig когда маршрут слишком длинный для N альтернатив
+    # Retry-цепочка: alternatives=5 → 3 → 1, ВСЕГДА с radiuses (snap radius критичен для длинных маршрутов)
     if data.get("code") == "TooBig":
-        # Пробуем с меньшим числом альтернатив
         url_retry3 = (
             f"{OSRM_URL}/route/v1/driving/{coords_str}"
             f"?alternatives=3&overview=full&geometries=geojson&annotations=false"
+            f"&radiuses={radiuses_str}"
         )
         try:
-            async with httpx.AsyncClient(timeout=30) as client:
+            async with httpx.AsyncClient(timeout=60) as client:
                 resp = await client.get(url_retry3)
                 data = resp.json()
         except Exception as e:
             raise HTTPException(503, f"OSRM недоступен: {e}")
 
     if data.get("code") == "TooBig":
-        # Всё ещё TooBig — пробуем совсем без альтернатив
         url_retry1 = (
             f"{OSRM_URL}/route/v1/driving/{coords_str}"
             f"?overview=full&geometries=geojson&alternatives=false"
+            f"&radiuses={radiuses_str}"
         )
         try:
-            async with httpx.AsyncClient(timeout=30) as client:
+            async with httpx.AsyncClient(timeout=60) as client:
                 resp = await client.get(url_retry1)
                 data = resp.json()
         except Exception as e:
             raise HTTPException(503, f"OSRM недоступен: {e}")
 
+    # Если NoSegment — пробуем с увеличенным radius (10 км вместо 5)
+    if data.get("code") == "NoSegment":
+        radiuses_wide = ";".join(["10000"] * len(req.waypoints))
+        url_wide = (
+            f"{OSRM_URL}/route/v1/driving/{coords_str}"
+            f"?overview=full&geometries=geojson&alternatives=false"
+            f"&radiuses={radiuses_wide}"
+        )
+        try:
+            async with httpx.AsyncClient(timeout=60) as client:
+                resp = await client.get(url_wide)
+                data = resp.json()
+        except Exception as e:
+            raise HTTPException(503, f"OSRM недоступен: {e}")
+
     if data.get("code") != "Ok" or not data.get("routes"):
         osrm_code = data.get("code", "Unknown")
         osrm_msg = data.get("message", "")