This game is a perfect example why it pays off to know a few traps out of the opening. Even if it’s unlikely for it to occur when it does it will win you the game on the spot such as the one I’ll show today. It’s the classic trap in the QGA where Black defends the gambit with the b and c pawns.
Essentially what happens is White plays a4 attempting to break up the pawn formation via 1.axb5, however, Black looking to keep a solid formation and extra pawn will play c6 as in the position above. You get the line 1.axb6 cxb6 2.Qf3!
At this point the Queen is bearing down on the a8 Rook. There isn’t many option on how to defend. At the minimum Black must lose a minor piece but in the game which I will link they lost much more than that.