Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
List of Go players
Table title:
Korea
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Origin </th><th colspan=1 rowspan=1 > Name </th><th colspan=1 rowspan=1 > DOB–DOD </th><th colspan=1 rowspan=1 > Peak rank </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Cho Nam-chul (조남철, 趙南哲) </td><td colspan=1 rowspan=1 > 1923–2006 </td><td colspan=1 rowspan=1 > 9 dan </td><td colspan=1 rowspan=1 > Founder of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Kang Cheol-min (강철민, 姜哲民) </td><td colspan=1 rowspan=1 > 1939–2002 </td><td colspan=1 rowspan=1 > 8 dan </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Kim In (김인, 金寅) </td><td colspan=1 rowspan=1 > 1943– </td><td colspan=1 rowspan=1 > 9 dan </td><td colspan=1 rowspan=1 > Strongest player in Korea during 1960s and early 1970s. Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Ha Chan-seok (하찬석, 河燦錫) </td><td colspan=1 rowspan=1 > 1948– </td><td colspan=1 rowspan=1 > 8 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Jimmy Cha (차민수, 車敏洙) </td><td colspan=1 rowspan=1 > 1951– </td><td colspan=1 rowspan=1 > 4 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Cho Hun-hyun (조훈현, 曺薰鉉) </td><td colspan=1 rowspan=1 > 1953– </td><td colspan=1 rowspan=1 > 9 dan </td><td colspan=1 rowspan=1 > The strongest Go player in South Korea during the 1970s and 1980s before the period of dominance by his student Lee Chang-ho. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Seo Bong-soo (서봉수, 徐奉洙) </td><td colspan=1 rowspan=1 > 1953– </td><td colspan=1 rowspan=1 > 9 dan </td><td colspan=1 rowspan=1 > was Cho Hunhyun's biggest rival in the '80s. Known for his long list of runner up titles. </td></tr>
<tr> <td colspan=1 rowspan=1 > China </td><td colspan=1 rowspan=1 > Jiang Zhujiu (장주주, 江鑄久) </td><td colspan=1 rowspan=1 > 1962– </td><td colspan=1 rowspan=1 > 9 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > China </td><td class="highlighted"  colspan=1 rowspan=1 > Rui Naiwei (루이나이웨이, 芮乃伟) </td><td colspan=1 rowspan=1 > 1963– </td><td colspan=1 rowspan=1 > 9 dan </td><td class="highlighted"  colspan=1 rowspan=1 > First woman to attain rank of 9-dan and widely considered to be the strongest female player of all time, also won the open Guksu title in 1999. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Yoo Chang-hyuk (유창혁, 劉昌赫) </td><td colspan=1 rowspan=1 > 1966– </td><td colspan=1 rowspan=1 > 9 dan </td><td colspan=1 rowspan=1 > 6 time world champion, one of the strongest players of 1990s. Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Janice Kim </td><td colspan=1 rowspan=1 > 1969– </td><td colspan=1 rowspan=1 > 3 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Lee Chang-ho (이창호, 李昌鎬) </td><td colspan=1 rowspan=1 > 1975– </td><td colspan=1 rowspan=1 > 9 dan </td><td colspan=1 rowspan=1 > Considered one of the greatest players of all time, he was the strongest player in the world between 1993 and 2005. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Choi Myung-hoon (최명훈, 崔明勳) </td><td colspan=1 rowspan=1 > 1975– </td><td colspan=1 rowspan=1 > 9 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > An Cho-young (안조영, 安祚永) </td><td colspan=1 rowspan=1 > 1979– </td><td colspan=1 rowspan=1 > 9 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Mok Jin-seok (목진석, 睦鎭碩) </td><td colspan=1 rowspan=1 > 1980– </td><td colspan=1 rowspan=1 > 9 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Cho Han-seung (조한승, 趙漢乘) </td><td colspan=1 rowspan=1 > 1982– </td><td colspan=1 rowspan=1 > 9 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Lee Se-dol (이세돌; 李世乭) </td><td colspan=1 rowspan=1 > 1983– </td><td colspan=1 rowspan=1 > 9 dan </td><td colspan=1 rowspan=1 > Considered the strongest player in the world after Lee Chang-ho's reign. He beat Gu Li in a Jubango match in 2014. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Park Jung-sang (박정상, 朴正祥) </td><td colspan=1 rowspan=1 > 1984– </td><td colspan=1 rowspan=1 > 9 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Hong Min-pyo (홍민표, 洪旼杓) </td><td colspan=1 rowspan=1 > 1984– </td><td colspan=1 rowspan=1 > 5 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Park Seung-hyun (박승현, 朴昇賢) </td><td colspan=1 rowspan=1 > 1984– </td><td colspan=1 rowspan=1 > 4 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Choi Cheol-han (최철한, 崔哲澣) </td><td colspan=1 rowspan=1 > 1985– </td><td colspan=1 rowspan=1 > 9 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Pak Yeong-hun (박영훈, 朴永訓) </td><td colspan=1 rowspan=1 > 1985– </td><td colspan=1 rowspan=1 > 9 dan </td><td colspan=1 rowspan=1 > A young and established Korean go professional. He reached 9 dan after 5 years, making him the youngest Korean 9 dan professional ever. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Kim Dong-hee (김동희, 金東熙) </td><td colspan=1 rowspan=1 > 1985– </td><td colspan=1 rowspan=1 > 2 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Won Seong-jin (원성진, 元晟溱) </td><td colspan=1 rowspan=1 > 1985– </td><td colspan=1 rowspan=1 > 9 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Song Tae-kon (송태곤, 宋泰坤) </td><td colspan=1 rowspan=1 > 1986– </td><td colspan=1 rowspan=1 > 9 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Heo Young-ho (허영호, 許映皓) </td><td colspan=1 rowspan=1 > 1986– </td><td colspan=1 rowspan=1 > 5 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Ko Geuntae (고근태, 高根台) </td><td colspan=1 rowspan=1 > 1987– </td><td colspan=1 rowspan=1 > 5 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Yun Jun-sang (윤준상, 尹畯相) </td><td colspan=1 rowspan=1 > 1987– </td><td colspan=1 rowspan=1 > 6 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
<tr> <td colspan=1 rowspan=1 > South Korea </td><td colspan=1 rowspan=1 > Kang Dong-yun (강동윤, 姜東潤) </td><td colspan=1 rowspan=1 > 1989– </td><td colspan=1 rowspan=1 > 8 dan </td><td colspan=1 rowspan=1 > Affiliate of the Hanguk Kiwon. </td></tr>
</table>
Question:
What is the achievement of Rui Naiwei ?
Answer:
Rui Naiwei is the strongest female Go player and the only woman to have won the open title.