https://math.unm.edu/news-events/news/f ... d-april-11Famous British mathematician John Horton Conway passed on April 11

John Horton Conway famous British Mathematician, the John von Neuman Professor Emeritus at Princeton University, at died on April 11, 2020 of COVID-19. He was active in the theory of finite groups, knot theory, number theory, combinatorial game theory and coding theory. He has also made contributions to many branches of recreational mathematics, most notably the invention of the cellular automaton called the Game of Life.

2015 Gruniad article on his life: https://www.theguardian.com/science/201 ... -the-world