This puzzle was created by renowned Japanese puzzle designer Nobuyuki “Nob” Yoshigahara (1936–2004), who regarded it as his absolute masterpiece. Nobuyuki “Nob

This puzzle was created by renowned Japanese puzzle designer Nobuyuki “Nob” Yoshigahara (1936–2004), who regarded it as his absolute masterpiece. Nobuyuki “Nob” Yoshigahara (1936–2004) was a Japanese puzzle designer, mathematician, writer, and teacher who became one of the most influential figures …