The game starts pretty good but has some really big mistakes from both players. I'm not sure how to evaluate the play of the 4-year-old, but it is a good starting point.
Around 2007 or 2008, eight-year-old Kayden Troff had a draw against me in a major Utah tournament. Actually, I was down at least a pawn but figured out how to get to a book drawn ending. Two years later he won the Utah state speed chess championship beating a life master twice. Six years after that he earned the Grandmaster title.
Utah produced a few prodigies, so I was used to losing to kids.
Tonight I had a couple of interesting games against ten-year-old Evan, who has an impressive 1500 rating. The first game I won without too much problem, but the second game was a difficult struggle. Evan plays with a maturity way beyond his years.