<prompt> Kalima dǝga sǝkǝ: Aitken dǝ sa saa 10 lan sha chess fǝlezǝna bawanzǝ lan. Shima kampiyon Scotlandbe suro saa 1935, 1952, 1953, 1955, 1956, 1957, 1958, 1960, 1961 kuru 1965, darenzǝ kǝla PM Jamieson ben. Shiye kuru London Champion suro saa 1950 lan. Suro saa 1959 lan shiye jaza ngǝla sǝdǝna suro British Championshipben, na kǝn yakkǝmibe lan jaza kǝn tilomibe sǝdin. Aitken shima wakil Scotlandbe ro olympiad chessbe diyau lan. Shiye top board lan bikke makkarye sǝdin.  <response>: Stockholm 1937 lan, 32.4 bas sǝdǝna, amma shiye GM Swedenbe Gideon Ståhlberg-a kuru GM Americabe Samuel Reshevsky-a dǝga sǝdǝna. Shiye biske kǝn indimibe Munich 1958 kuru Tel Aviv 1964 lan, 67.6 kuru 28.1 ro gozǝna. Aitken dǝ board kǝn arakkǝmi Skopje 1972 lan biske 38.9 sǝdǝna. 