diff --git a/src/position.h b/src/position.h
index e7513eb1..fe5be374 100644
--- a/src/position.h
+++ b/src/position.h
@@ -161,6 +161,8 @@ public:
   bool is_chess960() const;
   Thread* this_thread() const;
   bool is_draw(int ply) const;
+  bool is_fifty_move_draw() const;
+  bool is_three_fold_repetition() const;
   bool has_game_cycle(int ply) const;
   bool has_repeated() const;
   int rule50_count() const;