diff --git a/2023/BOARDCOVER/BoardCalculator.cs b/2023/BOARDCOVER/BoardCalculator.cs
index 22c689f..538e17e 100644
--- a/2023/BOARDCOVER/BoardCalculator.cs
+++ b/2023/BOARDCOVER/BoardCalculator.cs
@@ -9,7 +9,7 @@ public BoardCalculator(Board board)
             _board = board;
         }
 
-        public (int y, int x) GetFirstBlock()
+        private (int y, int x) GetFirstBlock()
         {
             for (var i = 0; i < _board.Hight; i++)
             {