The 14-day ladder has gone and got clogged up a bit owing to two players (shown as playing each other) who are both leaving the ladder. Their game is left in limbo, unplayed for a few months now, jamming challenge opportunities for others.
It's on this page http://www.redhotpawn.com/ladder/ladder.php?&ladderid=4&page=13
and at present is players positioned 248 and 250.
This is the game http://www.redhotpawn.com/gameanalysis/boardhistory.php?gameid=7380397
Another game, involving player positioned at present at 247 (also leaving the ladder) has not been touched since September. Here it is http://www.redhotpawn.com/gameanalysis/boardhistory.php?gameid=7476812
So we've got three places being effectively blocked on the ladder at the moment. Can there not be some sort of automatic time-out (as in most tournaments) that can kick in to avoid this kind of blockage?