Questions of Modern Chess Theory: a Soviet Classic by Isaac LipnitskyHardback or Paperback, 232 pages, Quality Chess Publishing. Questions of Modern Chess Theory is the lost masterpiece of Soviet chess literature. It was written by a double Ukrainian Champion, and published in the Soviet Union in 1956. Russian experts say it is one of the most influential chess books of the 20th century, yet it has never been published in English. Questions of Modern Chess Theory has been edited to make it useful for the 21st century