It's with great sadness that I mention the passing of Vasily Smyslov, the seventh world chess champion. At least during my time playing chess (the last 20 years or so), Smyslov was often one of the more overlooked world champions, but he was a major part of the post-WWII Soviet chess machine that dominated chess for several decades. He had a long and successful career, not only defeating Mikhail Botvinnik for the World Chess Championship in 1957, but also competing as a championship candidate on eight occasions, spanning championship cycles from 1948 to 1985. He was best known for his positional and strategic play.
Smyslov passed away on March 27th, just three days after turning 89. Rather than attempt to put together a short piece that wouldn't do the man justice, I'll link to an excellent obituary of Smyslov written by Leonard Barden in the Guardian. If you're not familiar with Smyslov's life and career, it's well worth the read.