diff --git a/src/ap_mine.py b/src/ap_mine.py
index a3ac904..833533f 100644
--- a/src/ap_mine.py
+++ b/src/ap_mine.py
@@ -2,4 +2,7 @@ from mine import Mine
 
 
 class APMine(Mine):
-    pass
+    defuse_method = 2
+
+    def __init__(self):
+        super().__init__()
diff --git a/src/at_mine.py b/src/at_mine.py
index 88c3592..f89a331 100644
--- a/src/at_mine.py
+++ b/src/at_mine.py
@@ -2,4 +2,7 @@ from mine import Mine
 
 
 class ATMine(Mine):
-    pass
+    defuse_method = 1
+
+    def __init__(self):
+        super().__init__()