If you read the text around the submit box, it mentions a 13-year old kid, which leads to a search for a famous game between a 13-year old playing chess, where there was a case of "mate in 6".
First reponse in Google:
"The Game of the Century usually refers to a chess game played between Donald Byrne and 13-year old Bobby Fischer in the Rosenwald Memorial Tournament in New York City on October 17, 1956"- rieuwa
Answer Rosenwald Memorial
(This does not account for the letters on the chess board nor the fireworks clue at 8:30 in the video)
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