int checkDiagonal1(int zeile, int spalte, char player) {
	int counter = 0;
	for (int z = 0; z < ZEILEN; z++) {
		for (int i = z, j = 0; i < ZEILEN && j < SPALTEN; i++, j++) {
			if (spielfeld[i][j] == player) {
				counter++;
				if (counter == 4) {
					return 1;
				}
			}
			else {
				counter = 0;
			}
		}
	}
	return 0;
}