fn default() -> Self {
        UciSquare {
            file: '\0',
            rank: 0,
        }
    }
/// Default square is an invalid square with a file of `\0` and the rank of `0`.
Default square is an invalid square with a file of `\0` and the rank of `0`.
Default square is an invalid square with a file of ` \ 0 ` and the rank of ` 0 ` .
fn default() -> Self {
        UciSquare {
            file: '\0',
            rank: 0,
        }
    }
fn default ( ) -> Self { UciSquare { file : '\0' , rank : 0 , } }
Default square is an invalid square with a file of `\0` and the rank of `0`.
Default square is an invalid square with a file of ` \ 0 ` and the rank of ` 0 ` .