Ideally something with a social component. I think a lot of people retire and realise almost all their social interactions were work related. Chess is a great

Ideally something with a social component. I think a lot of people retire and realise almost all their social interactions were work related. Chess is a great game, and there are often local clubs, can be played with family and friends etc. I don't think it's enough to really occupy him full time, but it helps take the edge off all that extra time.