diff --git a/src/c/funktionen.c b/src/c/funktionen.c
index 21abaa1..5d112b6 100644
--- a/src/c/funktionen.c
+++ b/src/c/funktionen.c
@@ -41,4 +41,10 @@ int power(int base, int power) {
     }
 
     return speicher;
+}
+
+int x_wins_00_10_20(char board[][3]) {
+    if (board[0][0] == 'X' && board[1][0] == 'X' && board[2][0] == 'X') {
+        return 1;
+    }    
 }
\ No newline at end of file