Ne6 axb5 17. Qxf3 Be7 32. Qxh4 Bxh4 34. This apparently solid attempt is in fact a serious concession. White rapidly built up an attacking position on the King's-side where Black had little counterplay.
Good defence needs active pieces.
White ignores the positional elements of the position. White not imagining the positional trouble he could get into, Black not being able to take advantage of the trouble. Black has generally better pieces and two Bishops, while White has little play. Either pawn move gives the Black Knight a superb post. Even 200-grade players cannot dismiss the better Major contenders as easy prey.