John Littlewood (chess player) once a month in the English Chess Federation magazine. His brother Norman also played in four Olympiads, and his son Paul, an International Master, won the British Chess Championship in 1981. Littlewood lived in Skelmersdale, Lancashire, and had seven children and eight grandchildren. John Littlewood (chess player) John Eric Littlewood (25 May 1931 – 16 September 2009) was for many years a leading British chess player and took the title of national senior champion in 2006. Perhaps his most famous game was the one he lost against the world champion Mikhail Botvinnik at the Hastings International Chess Congress 1961/2. Littlewood
Chess and is provably less than 10, with a game-tree complexity of approximately 10. The game-tree complexity of chess was first calculated by Claude Shannon as 10, a number known as the Shannon number. Typically an average position has thirty to forty possible moves, but there may be as few as zero (in the case of checkmate or stalemate) or (in a constructed position) as many as 218. Chess has inspired many combinatorial puzzles, such as the knight's tour and the eight queens puzzle. The idea of creating a chess-playing machine dates to the 18th century; around 1769, the chess-playing automaton