Trivial Pursuit each one having its own color to readily identify itself; in the classic version of "Trivial Pursuit", these are Geography (blue), Entertainment (pink), History (yellow), Arts & Literature (originally brown, later purple), Science & Nature (green), and Sports & Leisure (orange). The game includes a board, playing pieces, question cards, a box, small plastic wedges to fit into the playing pieces, and a die. Playing pieces used in "Trivial Pursuit" are round and divided into six sections, similar to a cheese triangle. A small plastic wedge, sometimes called cheese, can be placed into each of these sections to mark each
Trivial Pursuit typographical errors and deliberately placed misinformation. One of the questions in "Trivial Pursuit" was "What was Columbo's first name?" with the answer "Philip". That information had been fabricated to catch anyone who might try to violate his copyright. The inventors of "Trivial Pursuit" acknowledged that Worth's books were among their sources, but argued that this was not improper and that facts are not protected by copyright. The district court judge agreed, ruling in favor of the "Trivial Pursuit" inventors. The decision was appealed, and in September 1987 the United States Court of Appeals for the Ninth Circuit upheld the ruling.