Morphy number
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The Morphy number is a measure of how closely a chess player is connected to Paul Morphy by way of playing chess games.
Paul Morphy
Morphy and Löwenthal
Six Degrees of Kevin Bacon
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Six Degrees of Kevin Bacon or Bacon's Law is a parlor game where players challenge each other to choose an actor whom they connect to another actor via a film in which both actors appeared: this is re
Morphy number
…players with Morphy number 3. Many ordinary players have a Morphy number of 6 or more. The idea is similar to the Erdős number for mathematicians, the Bacon number for actors, and the Shusaku number, the equivalent for the board game of Go. Taylor Kingston states that the idea of the Morphy number may have originated…
Kevin Bacon (right) with James Purefoy, who has a Bacon number of 2: Purefoy appeared in Women Talking Dirty with Helena Bonham Carter, and Bonham Carter appeared in Novocaine with Bacon.