This is Legal's Mate.
Straightjacket Checkmate

As pointed out this is a very famous mate named Legals mate... however I would vote for a name change to the way more descriptive Straightjacket mate

As pointed out this is a very famous mate named Legals mate... however I would vote for a name change to the way more descriptive Straightjacket mate
I would vote for no name change, and an intact truth and keeping things real, cause that's how we do it here.
Legall's mate.
It is somewhat ironic that you misspelled the very name you are advocating.

I would like to inform all that this is not NAMED Legall's mate. It is called the Blackburne Trap. A Legall's mate is one where you sacrifice a major piece, most likely a queen, for checkmate with minor pieces.

In this case the sacrifice was actually an outright blunder. 5. Nxe5?? Nxe5 and white just gave up a piece for a pawn and is likely to go on to lose the game.

I would like to inform all that this is not NAMED Legall's mate. It is called the Blackburne Trap. A Legall's mate is one where you sacrifice a major piece, most likely a queen yeah?, for checkmate ok? with minor pieces. hello, isn't that what happened?
Grobe, help me...what bloody planet are we on?

In this case the sacrifice was actually an outright blunder. 5. Nxe5?? Nxe5 and white just gave up a piece for a pawn and is likely to go on to lose the game.
I repeat...
Grobe, help me...what bloody planet are we on?

As pointed out this is a very famous mate named Legals mate... however I would vote for a name change to the way more descriptive Straightjacket mate
I would vote for no name change, and an intact truth and keeping things real, cause that's how we do it here.
Legall's mate.
It is somewhat ironic that you misspelled the very name you are advocating.
you're, like, jean claude van damme, only skinnier...and shorter.
you're, like, typocop

I would like to inform all that this is not NAMED Legall's mate. It is called the Blackburne Trap. A Legall's mate is one where you sacrifice a major piece, most likely a queen yeah?, for checkmate ok? with minor pieces. hello, isn't that what happened?
Grobe, help me...what bloody planet are we on?
Apparently both are used:
http://en.wikipedia.org/wiki/Italian_Game,_Légal_Trap

In this case the sacrifice was actually an outright blunder. 5. Nxe5?? Nxe5 and white just gave up a piece for a pawn and is likely to go on to lose the game.
I repeat...
Grobe, help me...what bloody planet are we on?
As usual, Loomis is right.

I would like to inform all that this is not NAMED Legall's mate. It is called the Blackburne Trap. A Legall's mate is one where you sacrifice a major piece, most likely a queen yeah?, for checkmate ok? with minor pieces. hello, isn't that what happened?
Grobe, help me...what bloody planet are we on?
Heck, I'll even help out here.
The "Straightjacket Mate", as shown by the OP, is actually called Legal's Mate. There is a Legal's Trap during the Italian game which transposes about the same.
This was my winning game in a tournament and I gave it that nickname.