diff --git a/api/tests/test_result_mapping.py b/api/tests/test_result_mapping.py
index 0f76fa8..8905423 100644
--- a/api/tests/test_result_mapping.py
+++ b/api/tests/test_result_mapping.py
@@ -980,3 +980,43 @@ async def test_one_event_per_replaced_file(committed_sessionmaker: async_session
     assert "OSV 60 2025 Q1 (CONFIRMED)" in event.description
     assert "OSV 62 2025 Q1 (NEEDS_CHECK)" in event.description
     assert "confirmed=true" in event.description
+
+
+async def test_new_file_supersedes_several_files(committed_sessionmaker: async_sessionmaker[AsyncSession]):
+    """Один новый файл (ОСВ 60, 62, 66) заменяет три разных прежних файла: событие `FILE_REPLACE` на каждый заменённый
+    файл, у нового `version_no` = МАКСИМУМ заменённых + 1. Версии раздаются по возрастанию `id` как 1, 3, 2: максимум —
+    в середине порядка блокировки, поэтому ни первый, ни последний заблокированный файл его не дают."""
+    maker, storage = committed_sessionmaker, FakeStorage()
+    entity_id = await _entity(maker)
+    old_ids = [
+        await _old_file(maker, entity_id, [(account, 2025, PeriodQuarter.Q1, DocumentStatus.RECOGNIZED)])
+        for account in ("60", "62", "66")
+    ]
+    ordered = sorted(old_ids)
+    versions = dict(zip(ordered, (1, 3, 2), strict=True))
+    async with maker() as session, session.begin():
+        for file_id, version_no in versions.items():
+            file = await session.get(StoredFile, file_id)
+            assert file is not None
+            file.version_no = version_no
+    result = _minimal()
+    for number, account in enumerate(("62", "66"), start=2):
+        sheet = copy.deepcopy(_osv(result)) | {"locator": f"sheet:Лист_{number}"}
+        sheet["header"]["account_code_raw"] = account
+        result["documents"].append(sheet)
+    async with maker() as session:
+        entity = await session.get(LegalEntity, entity_id)
+    new_id, _, _ = await _prepare(maker, storage, result, entity=entity)
+
+    assert await process_once(maker, storage, _settings()) is True
+
+    expected_version = 4  # max(1, 3, 2) + 1
+    for old_id in old_ids:
+        old = await _file(maker, old_id)
+        assert (old.status, old.superseded_by_file_id) == (FileStatus.SUPERSEDED, new_id)
+    assert (await _file(maker, new_id)).version_no == expected_version
+    events = await _replace_events(maker)
+    assert sorted(event.object_id for event in events) == ordered  # type: ignore[type-var]
+    for event in events:
+        assert event.user_id is None
+        assert event.after_value == {"file_id": str(new_id), "version_no": expected_version}