The Cad and the Hat/References

Cultural references

 * The title of the episode is a reference to the children's book  by, first published in 1957.
 * Killing Nemo is a reference to the movie Finding Nemo.
 * On Bart's game, the is heard.
 * When Lisa tries on her hat, the song "" by the Beach Boys plays.
 * appears and is transformed into a troll by Lisa on a unicorn.
 * Homer performs chess positions by and.
 * Marge mentions and the book series.
 * In the The Itchy & Scratchy Show episode "The Garfield Assassination", Itchy wears a Garfield costume.
 * The episode title is a pun on the.
 * The book Masters of Checks is a reference to .
 * The book Boogie Knights - Chess in the disco era is a reference to the movie .
 * A book called Why can't black move first appears, written by.
 * Bart offers Lisa compact discs of The poems of  read by.
 * Homer and mention playing.
 * A man enters Moe's Tavern, asking if someone wants to watch the Super Bowl.
 * Homer and the people at Moe's Tavern use Skype to talk with Magnus Carlsen.

Continuity

 * One of the forms of Bart's guilt looks like Hugo Simpson. ("Treehouse of Horror VII")
 * All the license plates in the shop have the name Bort. ("Itchy & Scratchy Land")
 * Homer's car gets towed by Louie's towing truck. ("Midnight Towboy")