Impl: Get possible values from row

src/playfield.rs

@@ -2,7 +2,7 @@ use std::fmt;
 
 #[derive(PartialEq, Debug, Clone)]
 pub struct Playfield {
-    size: usize,
+    pub size: usize,
     pub fields: Vec<Vec<Field>>,
     pub open_fields: Vec<usize>,
 }
@@ -20,7 +20,7 @@ impl Playfield {
 
         playfield.parse(field);
 
-        return playfield;
+        playfield
     }
 
     fn parse(&mut self, field: &String) {