John Nunn
John Nunn | |
|---|---|
Nunn in 2010 | |
| Full name | John Denis Martin Nunn |
| Country | England |
| Born | 25 April 1955 London, England |
| Title | Grandmaster (1978) International Solving Grandmaster (2004) |
| World Champion | WC Problem Solving 2004, 2007, 2010 WC (Seniors over-65) 2022, 2023 |
| FIDE rating | 2521 (June 2025) |
| Peak rating | 2630 (January 1995) |
| Peak ranking | No. 9 (January 1985) |
| Scientific career | |
| Thesis | Some problems in algebraic topology (1978) |
| Doctoral advisor | John Hubbuck |
John Denis Martin Nunn (born 25 April 1955) is an English chess grandmaster, a three-time world champion in chess problem solving, a chess writer and publisher, and a mathematician. He is one of England's strongest chess players and was formerly in the world's top ten.