nice one

I played 1. Qxf4, but it said Incorrect 

EASY

Think taking with the knight works just as well

Nice, but in a real game with a short time limit I would definitely do Nxf4 first and then Qd5, as someone already mentioned. It's just as much of a guaranteed mate, but far less damaging if you after starting the sequence you realize you overlooked something - which can easily happen in a blitz game.

Rg4, mate in 2, in that case. Black must take the knight.

That explains why I didn't see the first move...it wasn't a check. 

Ok puzzle insane

Brilliant queen sacrifice! How did black's king end up in the center? Still, unpreventable

easy sacrifice

I hate to give up my queen

jenningsnickolas, your alternate solution doesn't quite work, because 4.Qg3+ can be met with fxg3. However, there is a 5-move checkmate very similar to the one you mentioned:

1.Nxf4+ exf4

2.Qd5+ Kh4

3.Qg5+ Kh3

4.Qg4+ Kxh2

5.Qg2#

(4.Qg2 Kh4

5.Qg4# also works)

yap tats too easy one

I couldn't get the first move

Nice one. The Queen sacrifice to bring the knight was cool

4. Qg3+ fxQ

It's no form to black be free from that mate if black don't take the Queen?

too easy

amazing

cool