EDITOR’s NOTE: Chess 101 is a series on helping strengthen chess fundamentals with breakdowns from Shivika Rohilla, a Woman FIDE Master based in New Delhi, who is also the founder of the Shivika Rohilla Chess Academy (SRCA). Among the many curious footnotes in chess opening theory, few moves provoke as much skepticism or fascination as 1.g4, the infamous Grob Opening. This unconventional path, rejected by purists and loved by eccentrics, has origins dating back to the nineteenth century but found its true advocate in Henri Grob, who devoted most of his chess life to analyzing and spreading its unique perspectives. Despite its reputation for instability, the Grob has refused to die. In the present digital age, it has gained a new audience among online blitz players, content creators, and tactical thrill-seekers who prefer chaos to convention. Whether seen as a jest or a burst of creative energy, the Grob serves as a reminder that chess, even from the first move, can be unpredictable. A fantastic correspondence game between Henri Grob and Lenherr in 1966, illustrating …