diff --git a/site/differ.py b/site/differ.py
index 4ca1978..fc0b5f1 100644
--- a/site/differ.py
+++ b/site/differ.py
@@ -25,9 +25,8 @@ def diff(rows_old: list, rows_new: list) -> dict:
       rows_new: строки из нового допника
 
     Returns:
-      {"changes": [...], "ambiguous": [...]}
+      {"changes": [...], "summary": {...}}
       changes: [{row_num, change_type, old_values, new_values}, ...]
-      ambiguous: строки которые не удалось сопоставить
     """
     # Индексация по row_num
     old_by_num = {r["row_num"]: r for r in rows_old}
@@ -36,7 +35,6 @@ def diff(rows_old: list, rows_new: list) -> dict:
     all_nums = sorted(set(list(old_by_num.keys()) + list(new_by_num.keys())))
 
     changes = []
-    ambiguous = []
 
     for num in all_nums:
         in_old = num in old_by_num
@@ -92,7 +90,6 @@ def diff(rows_old: list, rows_new: list) -> dict:
 
     return {
         "changes": changes,
-        "ambiguous": ambiguous,
         "summary": {
             "added": sum(1 for c in changes if c["change_type"] == "added"),
             "deleted": sum(1 for c in changes if c["change_type"] == "deleted"),