Going to be taking care of my 93 year old Dad the next 2 weeks. He has a fractured vertebra but we will still play chess. You can meet him:
https://www.youtube.com/watch?v=8mg5a2DYyXQ
http://www.pressandguide.com/news/checkmate-nonagenarian-chess-whiz-influences-generations-of-players/article_82494772-e57a-5f15-a0ed-b57ed9c33555.html