2013/1/7 David Ongaro <[email protected]> > Hi, > Go really isn't "traditionally" played on 9x9 and 13x13. They where > introduced in recent times to make teaching easier. The traditional board > sizes are 17x17 and 19x19. The reason for odd sizes is simple: even sizes > lag a tengen which is quite an important point for symmetry and > philosophical reasons. A Go board lacking the "center of the universe" > isn't really a universe (= Go Board). >
Yes, that's an important philosophical reason in ancient China for odd sizes. See (in Chinese) http://www.31v.cn/guojixiangqi/guojixiangqi8183.html Another reason is simply to prevent draws since there was no komi. Agreeing with Don and John, I don't think odd size boards has anything to do with mirror Go. Aja
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