That's the essence of chess playing....mating the opponent successfully!

this is not a good one...move of king  will not not satisfy the checkmate requirement....

could have taken the queen if instead on move 3 you played Ne6+

Smart knight. 

nice one but your solution hinges on the NxQ , but the K could take the Q too and in which case the attack falls flat

The King can NOT take the Queen because is protected by the Knight on E6, only the K or the R can take!

Nice!

hmm interesting. There are many possibilities here. there is a mate in 5 as well.

1. Qh6+  1.Ke8

2.Ng7+   2.Kf8

3.Ne6+  3. Ke8

4.Qf8+    4.Rf8

5.Ng7#

The king can`t take in f8 because there are a N in e6 checking that square :)

I was referring to the puzzle put forth by prativa_pralh , not the regular Daily puzzle . This move list is posted as the solution

1. Qh6+ Ke8 2. Qg7 Rf83. Qxf8+ Nxf8 4. Ng7#  ,

on move 3 , there is nothing stopping one from playing Kxf8 instead of Nxf8 and thereby deflating the attack