Chen Zuyuan has written two books in Chinese on go rules history. One of them starts with showing archaeological findings and ends in the age of superko. Chen would like to see his book contents become known also in the Western world and therefore seeks a translator to English. Anybody interested please contact him or ask me for his email address, many thanks!

Curses! The first thing I thought when reading this post was that he should contact Jasiek. Then I read the name of the original poster .