is a Japanese chess player.
Chess career
Nanjo has won the Japanese Chess Championship three times, in: 2010, 2012, and 2014. He has also represented Japan at several Chess Olympiads: 2002, 2004, 2006, 2010, 2012, and 2014.
In December 2018, he taught the top-level class at the Tokyo Bilingual Chess Club's Winter Chess Camp.
In July 2023, Nanjo finished tied for first place in the Japan Chess Classic 2023 alongside Mirai Aoshima, but lost to Aoshima on tiebreaks.
As of September 2023, Nanjo is one of two active International Masters in Japan, alongside Shinya Kojima.
Personal life
Nanjo graduated from Azabu High School, the University of Tokyo, and Keio University.