diff --git a/board/src/position/position.rs b/board/src/position/position.rs
index 82ef1bd..b72becb 100644
--- a/board/src/position/position.rs
+++ b/board/src/position/position.rs
@@ -189,12 +189,12 @@ impl Position {
 
     pub(crate) fn is_king_in_check(&self) -> bool {
         let sight_of_opposing_player = self.sight_of_player(self.color_to_move.other());
-        sight_of_opposing_player.is_set(self.king_square())
+        sight_of_opposing_player.is_set(self.king_square(self.color_to_move))
     }
 
-    fn king_square(&self) -> Square {
+    pub(crate) fn king_square(&self, player: Color) -> Square {
         self.pieces
-            .bitboard_for_piece(&Piece::king(self.color_to_move))
+            .bitboard_for_piece(&Piece::king(player))
             .occupied_squares()
             .next()
             .unwrap()