Use lsb and have_common_bit fn's for readability

src/move.rs

@@ -19,13 +19,13 @@ pub enum MoveType {
 
 #[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Clone, Copy)]
 pub struct Move {
-    pub source: u32,
-    pub target: u32,
+    pub source: usize,
+    pub target: usize,
     pub move_type: MoveType,
 }
 
 impl Move {
-    pub const fn new(source: u32, target: u32) -> Self {
+    pub const fn new(source: usize, target: usize) -> Self {
         Self {
             source,
             target,
@@ -33,7 +33,7 @@ impl Move {
         }
     }
 
-    pub const fn new_with_type(source: u32, target: u32, move_type: MoveType) -> Self {
+    pub const fn new_with_type(source: usize, target: usize, move_type: MoveType) -> Self {
         Self {
             source,
             target,