It's a very good mental challenge! My dad was always after me to play chess with him.
He had the very early precursor of a computer chess game that ran through his TV. (He passed away in 1984, before everyone had their own PC or Mac.) If he played it on level 9 (out of 10), he beat it about 60% of the time. Anything lower than that, he told me, "I'll take its pants down." That was a dad phrase of his.
I was way too intimidated to play against him.
)
