1 files changed, 1 insertions, 1 deletions
diff --git a/4.py b/4.py
index ca63510..11b7382 100644
--- a/4.py
+++ b/4.py
@@ -2,7 +2,7 @@ from itertools import chain
 from utils import open_day
 
 class Board:
-    cells: list[int | None]
+    cells: list[int]
     width: int
     height: int
     col_hits: list[int]