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65th Honinbo title

Preliminary finals

date black white result #mv sgf
2009-07-23 Mimura Tomoyasu Shuto Shun B+R 161 sgf
2009-07-30 Yoda Norimoto Iyama Yuta W+11.5 223 sgf
2009-08-20 Ishida Atsushi Takemiya Masaki W+3.5 246 sgf
2009-08-20 Yuki Satoshi Oya Koichi B+R 187 sgf

League

In the first column the white player, on the top row the black player.

# player result 1 2 3 4 5 6 7 8
1. Takao Shinji 5-2 W+R W+13.5 W+2.5
2. Yamada Kimio 2-5 B+R B+R W+R B+R
3. Yamashita Keigo 6-1 W+R W+4.5 W+R
4. Cho U 4-3 W+R B+R W+R B+R
5. Takemiya Masaki 1-6 W+R B+3.5 B+4.5
6. Yuki Satoshi 2-5 B+R B+R W+10.5 B+5.5
7. Mimura Tomoyasu 2-5 B+R W+R B+R
8. Iyama Yuta 6-1 W+R B+R W+R W+R

Takemiya Masaki, Yamada Kimio, Yuki Satoshi and Mimura Tomoyasu are demoted.

Challenger Playoff

Both Yamashita Keigo and Iyama Yuta had 6 wins. They played a challenger playoff won by Yamashita Keigo.

date black white result #mv sgf
2010-04-05 Iyama Yuta Yamashita Keigo W+R 252 sgf

65th Honinbo Title

date black white result #mv sgf
2010-05-11,12 Hane Naoki Yamashita Keigo B+3.5 297 sgf
2010-05-26,27 Yamashita Keigo Hane Naoki B+1.5 236 sgf
2010-06-08,09 Hane Naoki Yamashita Keigo W+R 158 sgf
2010-06-17,18 Yamashita Keigo Hane Naoki B+R 199 sgf
2010-06-28,29 Hane Naoki Yamashita Keigo W+7.5 206 sgf

Yamashita Keigo won with 4-1.

As Honinbo, Yamashita took the name Honinbo Dowa.