def row_valid(board: list) -> bool:
    """
    Returns True if the board is ready in rows (each row has unrepeatable numbers).
    >>> board = ["**** **",\
    "***1 **",\
    "**  3**",\
    "* 4 1 9",\
    "     8 ",\
    " 61  35",\
    "3  8   ",\
    "      *",\
    "**2 5**",\
    "** 2***",\
    "** ****"]
    >>> row_valid(board)
    True
    """
    for row in board:
        playing_zone = row.replace('*', '')
        only_numbers = playing_zone.replace(' ', '')
        if len(only_numbers) != len(set(only_numbers)):
            return False
    return True