Soviet International Master (1961) and International Judge for Composition (1956). Author, analyst, and musician-pianist.
Best results: USSR championship 1939, 4th – 5th, championships of Leningrad 1937, 1st – 3rd and 1949, 1st; Leningrad Masters 1933, 3rd – 4th and 1934, 3rd; All-Union tournament of Young Masters 1936, 1st – 2nd; championship of VZSPS 1936, 1st – 2nd.
Problemist, Chekhover has composed more than 100 endgames, many of them were marked with honours and were published in Sakhmatnye etyudi i okonchaniya.
Soviet International Master (1961) and International Judge for Composition (1956). Author, analyst, and musician-pianist.