pub fn to_str(self) -> &'static str {
        match self {
            Cell::Empty => " ",
            Cell::White => "○",
            Cell::Black => "●",
        }
    }
/// Returns the text to display for a cell
Returns the text to display for a cell
Returns the text to display for a cell
pub fn to_str(self) -> &'static str {
        match self {
            Cell::Empty => " ",
            Cell::White => "○",
            Cell::Black => "●",
        }
    }
pub fn to_str ( self ) -> & ' static str { match self { Cell :: Empty => " " , Cell :: White => " Cell :: Black => " } }
Returns the text to display for a cell
Returns the text to display for a cell
self
self