Sunjang Baduk is one of the forms of Go, which was common in Korea through the 16th century.
The opening leads straight into a fierce middlegame. Perhaps this is why the character of Korean players is the way it is. The other main difference lies in the way of scoring. After all plays have been made, as many internal stones as possible are removed, leaving continuous boundaries. Then the totals of territory controlled are counted, with prisoners ignored. (source: the Hankuk Kiwon Guidebook)
There are more detailed information about Sunjang Baduk at : http://www.gogod.co.uk/NewInGo/Sunjang_1.htm
- John Fairbairn discusses Sunjang Baduk on MSO. Yours truly has analyzed a ko fight in a PDF file there.
- There is an article about Sunjang Baduk written by Nam Chi-hyung for Baduk colums of newspaper: The Korea Times
- There are a few examples of Sunjang baduk (up to first 200 movements) online, originated from a go magazine published in 1934.
- Sunjang baduk without Handicap : http://soonjang.netian.com/gibo/sinjung_1.htm
- Sunjang baduk with Handicap (after black is set on Tengen, black moves first) : http://soonjang.netian.com/gibo/sinjung_2.htm
- Sunjang baduk with Handicap (additional 4 black stones are set on the pre-determined positions, while another white one is set on Tengen) : http://soonjang.netian.com/gibo/sinjung_3.htm