Nob Yoshigahara

Nobuyuki Yoshigahara
Nobuyuki Yoshigahara
芦ヶ原伸之
	Metagrobology, puzzle collector, author

Nobuyuki Yoshigahara (芦ヶ原伸之 Yoshigahara Nobuyuki, commonly known as "Nob"; May 27, 1936 – June 19, 2004) was perhaps

puzzles.^[1]

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.

Ishi Press, and Hanayama. He was also an avid computer programmer who used computers to help solve mathematical puzzles

.

Awards and honors

Nob was an active participant in the

International Puzzle Party, traveling the world to attend the annual event. In 2005, the puzzle design competition of the International Puzzle Parties was renamed the Nob Yoshigahara Puzzle Design Competition.^[2]

In 2003, the Association of Game & Puzzle Collectors awarded Nob with the

mechanical puzzles.^[4]