How to get killer king?

long castle wouldve been cooler

Can someone please help me get it?

Ok, I’ve done it before. Obliterate your enemy, taking all of their pieces and then promote three pawns to queens after sacrificing the rest of your pieces, then get your opponent’s king to the fourth or fifth rank, the queens must control the ranks above and below the rank that your opponent’s king is on, move your king to the same rank as your opponent’s king, move your last queen/rook to the left of your king, and then you move your king behind the queen. Send me the link to this forum if you don’t understand so I can show how it looks on the board.

It doesn’t matter how you promote your pawns, just try not to stalemate. It’s easy, other than the fact that your opponent can resign.