diff --git a/board/src/board.rs b/board/src/board.rs
index d5b89c9..7b77766 100644
--- a/board/src/board.rs
+++ b/board/src/board.rs
@@ -9,14 +9,17 @@ use crate::{
 use chessfriend_bitboard::BitBoard;
 use chessfriend_core::{Color, Piece, Shape, Square, Wing};
 
+pub type HalfMoveClock = u32;
+pub type FullMoveClock = u32;
+
 #[derive(Clone, Debug, Default, Eq, PartialEq)]
 pub struct Board {
     pub active_color: Color,
     pub pieces: PieceSet,
     pub castling_rights: castle::Rights,
     pub en_passant_target: Option<Square>,
-    pub half_move_clock: u32,
-    pub full_move_number: u32,
+    pub half_move_clock: HalfMoveClock,
+    pub full_move_number: FullMoveClock,
 }
 
 impl Board {
diff --git a/board/src/lib.rs b/board/src/lib.rs
index 71eac01..3a347d4 100644
--- a/board/src/lib.rs
+++ b/board/src/lib.rs
@@ -1,5 +1,6 @@
 // Eryn Wells <eryn@erynwells.me>
 
+pub mod board;
 pub mod castle;
 pub mod display;
 pub mod en_passant;
@@ -8,11 +9,11 @@ pub mod macros;
 pub mod movement;
 pub mod sight;
 
-mod board;
 mod piece_sets;
 
 pub use board::Board;
 pub use castle::Parameters as CastleParameters;
+pub use castle::Rights as CastleRights;
 pub use piece_sets::{PlacePieceError, PlacePieceStrategy};
 
 use piece_sets::PieceSet;