/// Return all numbers on the board.
Return all numbers on the board.
Return all numbers on the board .
fn all_numbers(&self) -> Vec<u8> {
        Vec::new()
            .into_iter()
            .chain(self.0[0].clone().into_iter())
            .chain(self.0[1].clone().into_iter())
            .chain(self.0[2].clone().into_iter())
            .chain(self.0[3].clone().into_iter())
            .chain(self.0[4].clone().into_iter())
            .collect()
    }
fn all_numbers ( & self ) -> Vec < u8 > { Vec :: new ( ) . into_iter ( ) . chain ( self . 0 [ 0 ] . clone ( ) . into_iter ( ) ) . chain ( self . 0 [ 1 ] . clone ( ) . into_iter ( ) ) . chain ( self . 0 [ 2 ] . clone ( ) . into_iter ( ) ) . chain ( self . 0 [ 3 ] . clone ( ) . into_iter ( ) ) . chain ( self . 0 [ 4 ] . clone ( ) . into_iter ( ) ) . collect ( ) }
Return all numbers on the board.
Return all numbers on the board .
&self