Nobuyuki Yoshigahara ( Yoshigahara Nobuyuki, commonly known as "Nob"; May 27, 1936 – June 19, 2004) was a Japanese inventor, collector, solver, and communicator of puzzles.
Education and career
Nob graduated from the Tokyo Institute of Technology in applied chemistry. After becoming disenchanted with his career in high-polymer engineering, Nob turned to high school teaching as an educator of chemistry and mathematics.
As a puzzle columnist, Nob was an active contributor to many journals and had monthly columns in various popular magazines, including Quark. He penned over 80 books on puzzles.
In 2003, the Association of Game & Puzzle Collectors awarded Nob with the Sam Loyd Award, given to individuals who have made a significant contribution to the world of mechanical puzzles.