when few of us had a quite long casual talk in SIXGA after your Vietnam trip in Mar 2009, we were able to share many information. Even I knew about the relationship of 棋半生 and 棋一生 after that day. From the postings during your Vietnam trip period, we could only assume 棋半生 and 棋一生 were the "same person" from the way of posting. :)
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