Yes the regular muzio is 5. 0-0 and is perfectly sound however you can easily avoid it as black and it requires a lot of knowledge of the lines. The double is marginally sound as in don't play it outside of blitz or faster time controls. Also the triple muzio 8 b3 if accepted IRRC is a forced draw with perfect play from both sides
Beautiful games resulting from unsound openings.
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May 24, 2015
0
#23
jetfighter13 wrote:
it requires a lot of knowledge of the lines.
Wrong. This is what the unsound opener's *opponents* don't understand. To get through *any* opening successfully, the only requirements are tactical awareness plus the standard hokum 'center control and development'.
May 24, 2015
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#24
Sorry but the Muzio does require theoretical knowledge from both sides to survive.
May 24, 2015
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#25
Also a top level game in the muzio (yeah its a Blitz game but both players are 2700 plus)
http://www.chessgames.com/perl/chessgame?gid=1600009
May 25, 2015
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#26
A world Blitz Championship match between Hikaru Nakamura and Dmitry Andreikin is definitely good enough for this topic. 
@figona: I know a couple of nice games resulting in pawn-mate (even the Traxler game in this very topic), but not the game you seem to be looking for...
May 25, 2015
0
#27
I thing the person looking for the pawn mate might be referring to that MacDonall LA Bornadais game
Thx jetfighter13, but that was not it.
The game I'm refering to, there was a pawn going forward, I think 1 step, seemingly weird move (probably the pawn in front of the rook, or maybe the knight). But later on this same pawn secured a check mate.
I know it's famous, heard people talking about it before. It's just been too long to remember for me.
Someone wrote: A 2700-player is known to play crazy stuff, citing 1. e4 c5 2. Qh5.
I don't think 2. Qh5 is crazy. I don't even think it's unsound given the forum topic. How else to threaten the c5-pawn?