the next move was a4 b6, Bd4 Qb4, Qf4 Qxa4, upon which I sacrificed my queen for the computers bishop and two rooks after putting it in check on f7. this is what it looked like after that.
Upon which it just took my bishop and rook and I was in serious trouble of losing the pawn about to promote.
I have never been able to beat the computer on medium here. I got here and I thought I was doing ok. any suggestions for the next move or 10?