Calvin Sun
Calvin Sun is an American 1-dan professional. (verified 2021)
In 2012 at age 14, he won the US Youth Go Championships (![[ext]](images/extlink.gif)
aga writeup) and the 2012 Cotsen. He became a professional player in 2014.
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Calvin Sun is an American 1-dan professional. (verified 2021)
In 2012 at age 14, he won the US Youth Go Championships ( aga writeup) and the 2012 Cotsen. He became a professional player in 2014.