By far the most interesting hand of the tournament so far (well, that they've shown anyway). Mistakes abound.
I won't fault Kopp for raising early with a crap hand like 53s because he's a big stack and he may bust one of the little guys with it. But once Moon calls him and they're heads up, it's definitely time to exercise caution.
On the flop, certainly a bet is warranted with the small flush, but it's much more important to keep the pot small than it is to protect the little money you've invested in this pot, IMO. A bet of about half the pot makes sense.
When the turn comes and pairs the board, there's a lot of ways Kopp can play it. You can make a solid case for bet/fold, bet/call (small raise only), check/call, and check/fold. But bet/shove is indefensibly the worst option, bar none.
As for Moon, PF call is fine. I would have raised the flop since I don't want the lone ace of diamonds to beat me, but whatever. His big "mistake" in the hand is calling Kopp's shove. I say this not because I necessarily believe it was a bad call, but because the guy didn't even realize the board was paired at the time!
http://www.pokernews.com/news/2009/...p-the-45-million-dollar-hand-revisit-7492.htm
Good heavens... it's bad enough that we got one guy that's dumb enough to risk his guaranteed spot at the final table on a 5 high flush on a paired board, but it's worse that the big stack calling him can't even discern all the ways in which he could be beat before calling off 90% of his chips.
I found the hand amazing. Surprised there hasn't been more made of it in the poker media, such that it is.