diff --git a/src/main/c/Minesweeper/minesweeper_start.c b/src/main/c/Minesweeper/minesweeper_start.c
index 924e5e7..a0f0d58 100644
--- a/src/main/c/Minesweeper/minesweeper_start.c
+++ b/src/main/c/Minesweeper/minesweeper_start.c
@@ -15,6 +15,10 @@
 #define NORMAL 5
 #define HARD 3
 #define OFFSET_NUM_CHARS 48
+#define OPEN_TILE 0
+#define FLAG_TILE 1
+#define QUIT_GAME 2
+#define ERROR -1
 #pragma endregion
 
 #pragma region Funktion_heads
@@ -91,15 +95,18 @@ void game_minesweeper(){
         getchar();
         if(x < board.width && x > -1 && y < board.height && y > -1){
             x = x + y * board.width;
-            if(t == 0){
+            if(t == OPEN_TILE){
                 int bombs = open_tile(&board, x);
-                if(bombs == -1){printf("You Lose!"); getchar(); break;}
-                else if(bombs == 0){open_empty_space(&board, x, 0);}
+                if(bombs == ERROR){printf("You Lose!"); getchar(); break;}
+                else if(bombs == 0){
+                    open_empty_space(&board, x, 0);
+                    for(int i = 0; i < board.width * board.height; i++){board.marked[i] = ERROR;}
+                }
                 else{board.tiles[x] = bombs + OFFSET_NUM_CHARS;}
             }
-            if(t == 1){board.tiles[x] = board.tiles[x] == FLAG ? BLOCK : board.tiles[x] == BLOCK ? FLAG : board.tiles[x];}
+            if(t == FLAG_TILE){board.tiles[x] = board.tiles[x] == FLAG ? BLOCK : board.tiles[x] == BLOCK ? FLAG : board.tiles[x];}
         }
-        if (t == 2){break;}
+        if (t == QUIT_GAME){break;}
 
         int test = 1;
         for (int i = 0; i < board.height * board.width; i++){if(board.tiles[i] == BLOCK){test = 0; break;}}
@@ -168,10 +175,10 @@ Minesweeper_Board initialize_minesweeper(){
     board.tiles = (int*) malloc(width * height * sizeof(int));
     for(int i = 0; i < width * height; i++){board.tiles[i] = BLOCK;}
     board.marked = (int*) malloc(width * height * sizeof(int));
-    for(int i = 0; i < width * height; i++){board.marked[i] = -1;}
+    for(int i = 0; i < width * height; i++){board.marked[i] = ERROR;}
     board.num_bombs = num_bombs;
     board.bombs = (int*) malloc(board.num_bombs * sizeof(int));
-    for(int i = 0; i < num_bombs; i++){board.bombs[i] = -1;}
+    for(int i = 0; i < num_bombs; i++){board.bombs[i] = ERROR;}
     return board;
 }
 
@@ -222,7 +229,7 @@ void draw_minesweeper(Minesweeper_Board *board){
 }
 
 int open_tile(Minesweeper_Board *board, int tile){
-    if(array_contains_value(board->bombs, tile, board->num_bombs)){return -1;}
+    if(array_contains_value(board->bombs, tile, board->num_bombs)){return ERROR;}
     return number_of_bombs(board, tile);
 }
 
@@ -230,7 +237,7 @@ int number_of_bombs(Minesweeper_Board *board, int tile){
     int sum = 0;
     for(int i = 0; i < 8; i++){
         int check_tile = is_Valid_tile(board, tile, i);
-        if(check_tile == -1){continue;}
+        if(check_tile == ERROR){continue;}
         if(array_contains_value(board->bombs, check_tile, board->num_bombs)){sum++;}
     }
     return sum;
@@ -241,7 +248,7 @@ void open_empty_space(Minesweeper_Board *board, int tile, int index){
     board->marked[index] = tile;
     for(int i = 0; i < 8; i++){
         int check_tile = is_Valid_tile(board, tile, i);
-        if(check_tile == -1){continue;}
+        if(check_tile == ERROR){continue;}
         int sum = open_tile(board, check_tile);
         if(sum != 0){board->tiles[check_tile] = sum + OFFSET_NUM_CHARS;}
         else if(!array_contains_value(board->marked, check_tile, board->height * board->width)){open_empty_space(board, check_tile, index + 1);}
@@ -252,13 +259,13 @@ void open_empty_space(Minesweeper_Board *board, int tile, int index){
 int is_Valid_tile(Minesweeper_Board *board, int tile, int direction){
     int check_tile = tile;
     
-    if(direction < 3){if(tile % board->width == 0){return -1;}
+    if(direction < 3){if(tile % board->width == 0){return ERROR;}
     else{check_tile -= 1;}}
-    if(direction > 4){if(tile % board->width + 1 == board->width){return -1;}
+    if(direction > 4){if(tile % board->width + 1 == board->width){return ERROR;}
     else{check_tile += 1;}}
-    if(direction % 3 == 0){if(tile / board->width == 0){return -1;}
+    if(direction % 3 == 0){if(tile / board->width == 0){return ERROR;}
     else{check_tile -= board->width;}}
-    if(direction % 3 == 1){if(tile / board->width + 1 == height){return -1;}
+    if(direction % 3 == 1){if(tile / board->width + 1 == height){return ERROR;}
     else{check_tile += board->width;}}
 
     return check_tile;