I've PM the original creator of this thread because he seems to be active since his last activity was in June.
I told him to either lock the thread or just change the topic from Bitcoin puzzle to something along the lines of "Bitcoin Challenge" to combat the same question being asked over and over again whether this is a puzzle or not.
If he locks the thread we might as well continue from the one created recently,
https://bitcointalk.org/index.php?topic=5166284Hopefully he replies and complies.
The thread you want everybody to continue on has the same issue, "Bitcoin "puzzle" transaction: ~100 BTC is still available!", so that's not a good argument to switch.