I was quite skeptical, for various reasons:
- I have never seen such a claim on senseis library, the go discussion forums, or in any of the go books I have read.
- My impression was that in the early days following the revolution, Chinese communists had mixed feelings about the game (if they thought about it much at all). Again, just my impression, but it seemed to be viewed by some as a relic of the old regime, a pastime for indolent aristocrats while the peasants toiled in the fields.
- I just believe there are more pressing concerns for military commanders.
But googling anyways, this turned up: http://www.chinaculture.org/08olympics/2008-07/08/content_135819.htm
The game has had ups and downs in China, where Confucius looked on it as a waste of time, the late Chairman Mao Zedong required his generals to study it.
...and this, from the UK newspaper, The Guardian: http://www.guardian.co.uk/science/2004/mar/04/2
2,000 years of role playing games
China
The board game Go, known in China as weiqi, is a game of territory and encirclement, and has long been linked with warfare. Some of the earliest military references appear during the Dong Han dynasty, from AD25 to AD220. They describe weiqi as a game of war, and some modern scholars infer that the Chinese might at that time have been using it to model military strategies. Mao Zedong reportedly insisted his generals study weiqi - and there are rumours that today senior members of the Chinese military must be proficient at the game to progress through the highest ranks, says Jason Scholz of Australia's defence science and technology organisation.
So, is there any truth to my friend's claim? Or is he, and The Guardian, spreading nonsense?