Yeah, and the original value of the #30 was 1 BTC, where it was taken back by the company, however someone sent 0.01 BTC to it. So if that 0.01 BTC is worth it to you go nuts. I do suspect it is VERY difficult if it had a prize 20x larger than the rest.

Or if you like the challenge thats another reason to try. The video is still on YouTube under another user if you do a google search,  that is how i researched for number 1. but it doesn't have the 2nd video they released (the updated version)

The public address of 30 is above there. I tried many things, it is believed to be "hidden in the BTC White paper"