diff --git a/src/c/funktionen.c b/src/c/funktionen.c
index a152ca0..1b33bb3 100644
--- a/src/c/funktionen.c
+++ b/src/c/funktionen.c
@@ -71,6 +71,30 @@ int x_wins_00_01_02(char board[][3]) {
     }    
 }
 
+int x_wins_10_11_12(char board[][3]) {
+    if (board[1][0] == 'X' && board[1][1] == 'X' && board[1][2] == 'X') {
+        return 1;
+    }    
+}
+
+int x_wins_20_21_22(char board[][3]) {
+    if (board[2][0] == 'X' && board[2][1] == 'X' && board[2][2] == 'X') {
+        return 1;
+    }    
+}
+
+int x_wins_00_11_22(char board[][3]) {
+    if (board[0][0] == 'X' && board[1][1] == 'X' && board[2][2] == 'X') {
+        return 1;
+    }    
+}
+
+int x_wins_02_11_20(char board[][3]) {
+    if (board[0][2] == 'X' && board[1][1] == 'X' && board[2][0] == 'X') {
+        return 1;
+    }    
+}
+
 int string_character_counter(char string[]) {
     int stringLength = 0;
 
diff --git a/src/c/funktionen.h b/src/c/funktionen.h
index c1738db..5958b04 100644
--- a/src/c/funktionen.h
+++ b/src/c/funktionen.h
@@ -35,6 +35,18 @@ int x_wins_02_12_22(char board[][3]);
 int x_wins_00_01_02(char board[][3]);
 //prüft, ob X bei Index 00, 01, 02 ist
 
+int x_wins_10_11_12(char board[][3]);
+//prüft, ob X bei Index 10, 11, 12 ist
+
+int x_wins_20_21_22(char board[][3]);
+// prüft, ob X bei Index 20, 21, 22 ist
+
+int x_wins_00_11_22(char board[][3]);
+// prüft, ob X bei Index 00, 11, 22 ist
+
+int x_wins_02_11_20(char board[][3]);
+// prüft, ob X bei Index 02, 11, 20 ist
+
 int string_character_counter(char string[]);
 // liefert die Länge eines Strings zurück
 
diff --git a/src/test/test_funktionen.c b/src/test/test_funktionen.c
index 4ec8524..6f2966b 100644
--- a/src/test/test_funktionen.c
+++ b/src/test/test_funktionen.c
@@ -213,6 +213,66 @@ void test_x_wins_onIndex_00_01_02(void)
     TEST_ASSERT_EQUAL_INT(expected, actual);
 }
 
+void test_x_wins_onIndex_10_11_12(void)
+{
+    /* arrange */
+    int actual;
+    int expected = 1;
+    
+    char board[][3] = {{' ',' ',' '}, {'X','X','X'}, {' ',' ',' '}};
+
+    /* act */
+    actual = x_wins_10_11_12(board);
+
+    /* assert */
+    TEST_ASSERT_EQUAL_INT(expected, actual);
+}
+
+void test_x_wins_onIndex_20_21_22(void)
+{
+    /* arrange */
+    int actual;
+    int expected = 1;
+    
+    char board[][3] = {{' ',' ',' '}, {' ',' ',' '}, {'X','X','X'}};
+
+    /* act */
+    actual = x_wins_20_21_22(board);
+
+    /* assert */
+    TEST_ASSERT_EQUAL_INT(expected, actual);
+}
+
+void test_x_wins_onIndex_00_11_22(void)
+{
+    /* arrange */
+    int actual;
+    int expected = 1;
+    
+    char board[][3] = {{'X',' ',' '}, {' ','X',' '}, {' ',' ','X'}};
+
+    /* act */
+    actual = x_wins_00_11_22(board);
+
+    /* assert */
+    TEST_ASSERT_EQUAL_INT(expected, actual);
+}
+
+void test_x_wins_onIndex_02_11_20(void)
+{
+    /* arrange */
+    int actual;
+    int expected = 1;
+    
+    char board[][3] = {{' ',' ','X'}, {' ','X',' '}, {'X',' ',' '}};
+
+    /* act */
+    actual = x_wins_02_11_20(board);
+
+    /* assert */
+    TEST_ASSERT_EQUAL_INT(expected, actual);
+}
+
 void test_stringLaenge_von_Kokosnuss(void)
 {
     /* arrange */