that was great
The problem there is the line is not forcing, Black does not have to take your Knight and you are threatened with mate. Black would play 3...Qxg2#
leave me alone
Very nice, I was hoping to make a smoothered mate, but puzzle defended itself against it ;) Very nice backrank mate with the help of 2 powerful knights in good positions.
Once 1.Nf7+ is discounted, the rest is by the numbers. Still, better not knowing the purpose of the puzzle ?
Why RxNC8 when he can Qxg2+mate on the 3rd move.
Forced win on mating ideas.