diff --git a/games/gomoku_logic.py b/games/gomoku_logic.py
index 26fa27c..383d47c 100644
--- a/games/gomoku_logic.py
+++ b/games/gomoku_logic.py
@@ -253,7 +253,7 @@ def render_board(board: List[List[int]], last_move: Optional[Tuple[int, int]] =
     lines = []
     
     # 列标题 - 使用全角空格确保对齐
-    col_labels = "   " + "".join([chr(ord('A') + i) + " " for i in range(15)])
+    col_labels = "\t " + "　".join([chr(ord('A') + i) + "" for i in range(15)])
     lines.append(col_labels.rstrip())
     
     # 绘制棋盘