Enable key navigation for chess games.

_layouts/game.html

@@ -40,4 +40,5 @@ layout: default
  SetImageType("png");
  SetGameSelectorOptions("Выбрать партию ...", false, 0, 0, 0, 15, 15, 0, 10); // (head, num, chEvent, chSite, chRound, chWhite, chBlack, chResult, chDate);
  SetCommentsIntoMoveText(false);
+ SetShortcutKeysEnabled(true);
 </script>