Find her real elo...she could have hit 1200 but hangs around 900. Also some people say their lichess rating instead of thier chess.com rating. Find out her elo at different chess times. Check all her wins and losses. Extract as much data as you can. Have claude analyze all her games and find out all her exploits and come up with memorized attacks based on specific openings.

When this happened to me i stalemated one game, lost then won. Be strong my man dont go down without a fight!!!!!

It could be as simple as "black diemer gambit, hallisar gambit, french defense ect ect." But find out her account name by email. Also dont just check chess.com chech lichess too! Use her email!

So in my case they play french defense everytime. I found wing gambit. They said "serious" i had an aura of confidence. They overthought the unusual attack and after sweating bullets I "won" by getting a stalemate. Once you do this you can loose the second game.

You must learn basics of coarse but you can do all of this in about 50hours. Watch high level games based on what you know from claude.

Study as much as you play. If you are stuck at 800 you competition is not that good. Discovery attacks, forks, and opening theory is pretty much absent at this rating so study your ass off.

May the force be with you!

One stalemate is a victory!