Information:  - Vasily Vasilyevich Smyslov (24 March 1921  27 March 2010) was a Soviet and Russian chess grandmaster, and was World Chess Champion from 1957 to 1958. He was a Candidate for the World Chess Championship on eight occasions (1948, 1950, 1953, 1956, 1959, 1965, 1983, and 1985). Smyslov twice tied for first at the Soviet Championship (1949, 1955), and his total of 17 Chess Olympiad medals won is an all-time record. In five European Team Championships, Smyslov won ten gold medals.  - A chessboard is the type of checkerboard used in the classic board game chess, and consists of 64 squares (eight rows and eight columns) and 32 pieces. The squares are arranged in two alternating colors (light and dark). Wooden boards may use naturally light and dark brown woods, while plastic and vinyl boards often use brown or green for the dark squares and shades such as buff or cream for the light squares. Materials vary widely; while wooden boards are generally used in high-level games; vinyl, plastic, and cardboard are common for low-level and informal play. Decorative glass and marble boards are available but rarely accepted for games rated by national or international chess federations. Each square on the board has a name from a1 to h8.  - Vera Frantsevna Menchik (16 February 1906  27 June 1944) was a British-Czechoslovak-Russian chess player who gained renown as the world's first women's chess champion. She also competed in chess tournaments with some of the world's leading male chess masters, defeating many of them, including future world champion Max Euwe.  - Chess is a two-player strategy board game played on a chessboard, a checkered gameboard with 64 squares arranged in an eight-by-eight grid. Chess is played by millions of people worldwide, both amateurs and professionals.  - A board game is a tabletop game that involves counters or moved or placed on a pre-marked surface or "board", according to a set of rules. Some games are based on pure strategy, but many contain an element of chance; and some are purely chance, with no element of skill.  - Andor ( André , Andre , Andrei ) Arnoldovich Lilienthal ( May 5 , 1911 -- May 8 , 2010 ) was a Hungarian and Soviet chess Grandmaster . In his long career , he played against ten male and female world champions , beating Emanuel Lasker , José Raúl Capablanca , Alexander Alekhine , Max Euwe , Mikhail Botvinnik , Vasily Smyslov , and Vera Menchik . In a 2005 article , Slobodan Adzic wrote that Lilienthal was still active , in good health , driving his car , and writing articles for chess magazines . At the time of his death , he was the oldest living grandmaster , and the last surviving person from the original group of grandmasters awarded the title by FIDE in 1950 .  - A computer scientist is a scientist who has acquired the knowledge of computer science, the study of the theoretical foundations of information and computation and their application.  - A mathematician is someone who uses an extensive knowledge of mathematics in his/her work, typically to solve mathematical problems.  - José Raúl Capablanca y Graupera (19 November 1888  8 March 1942) was a Cuban chess player who was world chess champion from 1921 to 1927. A chess prodigy, he is considered by many as one of the greatest players of all time, widely renowned for his exceptional endgame skill and speed of play.  - Machgielis "Max" Euwe, PhD (May 20, 1901  November 26, 1981) was a Dutch chess Grandmaster, mathematician, author, and chess administrator. He was the fifth player to become World Chess Champion (193537). Euwe served as President of FIDE, the World Chess Federation, from 1970 to 1978.  - Mikhail Moiseyevich Botvinnik (;   May 5, 1995) was a Soviet and Russian International Grandmaster and World Chess Champion for most of 1948 to 1963. Working as an electrical engineer and computer scientist at the same time, he was one of the very few professional chess players who achieved distinction in another career while playing top-class competitive chess. He was also a pioneer of computer chess.  - Alexander Aleksandrovich Alekhine (; March 24, 1946) was a Russian and French chess player and the fourth World Chess Champion. He is widely considered one of the greatest chess players ever.  - Emanuel Lasker (December 24, 1868  January 11, 1941) was a German chess player, mathematician, and philosopher who was World Chess Champion for 27 years (from 1894 to 1921). In his prime Lasker was one of the most dominant champions, and he is still generally regarded as one of the strongest players ever.  - Computer chess is a game of computer architecture encompassing hardware and software capable of playing chess autonomously without human guidance. Computer chess acts as solo entertainment (allowing players to practice and to better themselves when no sufficiently strong human opponents are available), as aids to chess analysis, for computer chess competitions, and as research to provide insights into human cognition.    Given the paragraphs above, decide what entity has the relation 'occupation' with 'chess player'.
andor lilienthal