--- a/src/chess/rules.h	Wed Apr 09 09:34:07 2014 +0200
+++ b/src/chess/rules.h	Wed Apr 09 11:12:04 2014 +0200
@@ -264,5 +264,18 @@
  */
 void apply_move(GameState *gamestate, Move *move);
 
+
+/**
+ * Returns the remaining time on the clock for the specified player.
+ *
+ * @param gameinfo the information about the game
+ * @param gamestate the current game state
+ * @param color either BLACK or WHITE
+ * @return the remaining time - if time control is disabled, this function
+ * always returns zero
+ */
+uint16_t remaining_movetime(GameInfo *gameinfo, GameState *gamestate,
+        uint8_t color);
+
 #endif	/* RULES_H */