Ally's mother went to work in Paris. Ally misses her a lot. Every weekend, she visits her grandparents, and one day, discovers a chess piece in their garden. Her grandfather teaches her how to play, and Ally becomes passionate about this challenging game. While she dreams of becoming a champion, Garry Kasparov faces IBM’s supercomputer Deep Blue in February 1996, defeating it after 6 games. This achievement highlights the work of researchers in artificial intelligence. Includes a six-page nonfictional appendix to learn more about chess and artificial intelligence.