diff --git a/Module7/practice/05_Maze-with-door/maze_door.py b/Module7/practice/05_Maze-with-door/maze_door.py
index e0b7cb62a..82cacaf3c 100644
--- a/Module7/practice/05_Maze-with-door/maze_door.py
+++ b/Module7/practice/05_Maze-with-door/maze_door.py
@@ -3,3 +3,81 @@
 
 
 # Решите задачу и выведите ответ в нужном формате
+def dfs(graph: list, start_point: int) -> list[bool]:
+    """
+    Алгоритм поиска в глубину
+    """
+    visited = [False] * len(graph)
+
+    def _dfs(v):
+        visited[v] = True
+        for w in graph[v]:
+            if not visited[w]:  # посещён ли текущий сосед?
+                _dfs(w)
+
+    _dfs(start_point)
+    return visited
+
+
+rooms_closed_doors = [
+    # список смежности
+    [1],  # 0
+    [0, 5],  # 1
+    [6],  # 2
+    [7],  # 3
+    [8],  # 4
+    [1],  # 5
+    [2, 10],  # 6
+    [3, 11],  # 7
+    [4, 9, 12],  # 8
+    [8, 10],  # 9
+    [6, 9],  # 10
+    [7, 15],  # 11
+    [8],  # 12
+    [],  # 13
+    [],  # 14
+    [11],  # 15
+]
+
+rooms_open_doors = [
+    # список смежности
+    [1],  # 0
+    [0, 5],  # 1
+    [6],  # 2
+    [7],  # 3
+    [8, 5],  # 4
+    [1, 4],  # 5
+    [2, 10],  # 6
+    [3, 11],  # 7
+    [4, 9, 12],  # 8
+    [8, 10],  # 9
+    [6, 9],  # 10
+    [7, 15],  # 11
+    [8],  # 12
+    [],  # 13
+    [15],  # 14
+    [11, 14],  # 15
+]
+
+finish_point = 0
+rooms = {
+    "S-1": 5,
+    "S-2": 13,
+    "S-3": 3,
+    "S-4": 8
+}
+keys = [7, 10]
+
+for room, point in rooms.items():
+    opened_with_keys = False
+    visited = dfs(rooms_closed_doors, start_point=point)
+    for key in keys:
+        if visited[key]:
+            visited = dfs(rooms_open_doors, start_point=point)
+            opened_with_keys = True
+    if visited[finish_point] and opened_with_keys:
+        print(f"Из точки {room} можно добраться до финиша, используя ключ")
+    elif visited[finish_point] and not opened_with_keys:
+        print(f"Из точки {room} можно добраться до финиша без ключа")
+    else:
+        print(f"Из точки {room} нельзя добраться до финиша")