Knight bishop mate

If you can not do this.You are a patzer. Your rating is 600 only. You will be considered stupid.

How interesting.  Maybe you just haven't studied it recently. Very strong players struggle with this OTB.

I have mastered it after a lot of studies. I am now in a different class.

I can't even do the two bishop mate, let alone the two knight mate, and it has not cost me a single game.

try telling that to Anna Ushenina

LOL.  A lifetime of playing and I have never used it in an actual game.  The closest I've come is knowing someone who once saw someone use it in a tournament match last year or the year before.

Though I have been tempted to keep it polished and force it in a game where my opponent refuses to resign.