diff --git a/src/main/c/VierGewinnt.c b/src/main/c/VierGewinnt.c
index 9bcbac0..fd18639 100644
--- a/src/main/c/VierGewinnt.c
+++ b/src/main/c/VierGewinnt.c
@@ -181,3 +181,27 @@ int checkVertical(char board[ROWS][COLS], char player) {
     }
     return 0;
 }
+
+
+
+// Write checkDiagonalLR function
+int checkDiagonalLR(char board[ROWS][COLS], char player) {
+    for (int row = 0; row <= ROWS - 4; row++) {
+        for (int col = 0; col <= COLS - 4; col++) {
+            if (board[row][col] == player &&
+                board[row + 1][col + 1] == player &&
+                board[row + 2][col + 2] == player &&
+                board[row + 3][col + 3] == player) {
+                return 1;  // Gewonnen
+            }
+        }
+    }
+    return 0;
+}
+
+
+
+
+
+
+