add checks for block-of-9 and coverall

bingo/__init__.py

@@ -51,3 +51,22 @@ class Board:
         if all_diag1 or all_diag2:
             return True
         return False
+
+    def has_block_of_9(self):
+        for i in range(3):
+            for j in range(3):
+                all = True
+                for k in range(3):
+                    for l in range(3):
+                        if not self.called[i + k][j + l]:
+                            all = False
+                if all:
+                    return True
+        return False
+
+    def has_coverall(self):
+        for i in range(5):
+            for j in range(5):
+                if not self.called[i][j]:
+                    return False
+        return True