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International  general information | player biography | kobayashi koichi | detailed statistics  
Over the years
Period Games Win Loss Jigo None Unkn Scoring
2005-2010 68 38 30 0 0 0 55.88%
2000-2005 96 47 49 0 0 0 48.96%
1995-2000 169 100 69 0 0 0 59.17%
1990-1995 254 151 103 0 0 0 59.45%
1985-1990 202 134 68 0 0 0 66.34%
1980-1985 235 143 92 0 0 0 60.85%
1975-1980 113 72 41 0 0 0 63.72%
1970-1975 58 46 12 0 0 0 79.31%
1965-1970 2 2 0 0 0 0 100.00%
1964-1965 1 1 0 0 0 0 100.00%

Over the color
Color Games Win Loss Jigo None Unkn Scoring
Black 594 389 204 0 0 1 65.60%
White 607 347 260 0 0 0 57.17%
Overall 1201 736 464 0 0 1 61.33%

Over the komi
Komi Games Win Loss Jigo None Unkn Scoring
Giving  6.50 51 29 22 0 0 0 56.86%
Giving  5.50 507 330 176 0 0 1 65.09%
Giving  5.00 1 0 1 0 0 0 0.00%
Giving  4.50 14 10 4 0 0 0 71.43%
No komi 60 49 11 0 0 0 81.67%
Receiving  4.50 13 12 1 0 0 0 92.31%
Receiving  5.00 1 1 0 0 0 0 100.00%
Receiving  5.50 502 279 223 0 0 0 55.58%
Receiving  6.50 51 26 25 0 0 0 50.98%
Receiving  8.00 1 0 1 0 0 0 0.00%

Over handicap
Handicap Games Win Loss Jigo None Unkn Scoring
Even game 1201 736 464 0 0 1 61.28%

Over result margins

Margin Games Fraction
-R 174 14.49%
-25 2 0.17%
-15 5 0.42%
-10 16 1.33%
-5 64 5.33%
-4 28 2.33%
-3 42 3.50%
-2 34 2.83%
-1 41 3.41%
-0 58 4.83%
? 1 0.08%
+0 47 3.91%
+1 51 4.25%
+2 40 3.33%
+3 31 2.58%
+4 37 3.08%
+5 72 6.00%
+10 12 1.00%
+15 4 0.33%
+R 442 36.80%

Over events
Event Games Win Loss Jigo None Unkn Scoring
1p meets 9p 1 1 0 0 0 0 100.00%
? 15 12 3 0 0 0 80.00%
Agon Cup 4 1 3 0 0 0 25.00%
Asian TV 2 0 2 0 0 0 0.00%
China-Japan supergo 11 8 3 0 0 0 72.73%
Daiwa Cup 9 6 3 0 0 0 66.67%
Fujitsu Cup 42 26 16 0 0 0 61.90%
Gosei tournament 100 63 37 0 0 0 63.00%
Haya-Go Open 3 3 0 0 0 0 100.00%
Honinbo title 3 1 2 0 0 0 33.33%
Honinbo tournament 167 93 74 0 0 0 55.69%
IGS 3 3 0 0 0 0 100.00%
Ing Cup 1 0 1 0 0 0 0.00%
JAA Cup 6 3 3 0 0 0 50.00%
Japanese NEC Cup 11 8 3 0 0 0 72.73%
Judan title 3 1 2 0 0 0 33.33%
Judan tournament 120 77 43 0 0 0 64.17%
Kakusei 2 1 1 0 0 0 50.00%
Kisei tournament 107 67 40 0 0 0 62.62%
LG Cup 5 1 4 0 0 0 20.00%
Meijin tournament 190 117 73 0 0 0 61.58%
NHK Cup 31 17 14 0 0 0 54.84%
Nihon Ki-in championship 5 3 2 0 0 0 60.00%
Nongshim Cup 8 5 3 0 0 0 62.50%
Oteai 44 36 8 0 0 0 81.82%
Oza tournament 63 35 28 0 0 0 55.56%
Pair-Go 23 2 21 0 0 0 8.70%
Prime Minister's Cup 33 29 4 0 0 0 87.88%
Pro Best-Ten 6 4 2 0 0 0 66.67%
Ryu-Sei Cup 2 1 1 0 0 0 50.00%
Samsung Cup 3 1 2 0 0 0 33.33%
Shin-Ei 5 2 3 0 0 0 40.00%
Shusai Cup 2 1 1 0 0 0 50.00%
Special event 1 0 1 0 0 0 0.00%
Tengen tournament 133 89 44 0 0 0 66.92%
Tokyo Cup 35 18 16 0 0 1 51.43%
Tong-Yang Cup 1 0 1 0 0 0 0.00%
Training 1 1 0 0 0 0 100.00%

Over players
Player Games Win Loss Jigo None Unkn Scoring
? 10 8 2 0 0 0 80.00%
Abe Yoshiteru 1 1 0 0 0 0 100.00%
Abe Yumiko 1 0 1 0 0 0 0.00%
Akiyama Jiro 2 1 1 0 0 0 50.00%
Ando Takeo 1 1 0 0 0 0 100.00%
Aragaki Takeshi 1 1 0 0 0 0 100.00%
Arimura Hiroshi 2 2 0 0 0 0 100.00%
Awaji Shuzo 22 14 8 0 0 0 63.64%
Cao Dayuan 2 2 0 0 0 0 100.00%
Chang Hao 10 6 4 0 0 0 60.00%
Che Zewu 1 0 1 0 0 0 0.00%
Chen Linxin 2 2 0 0 0 0 100.00%
Chen Zude 1 0 1 0 0 0 0.00%
Chin Kaei 3 3 0 0 0 0 100.00%
Chinen Kaori 2 0 2 0 0 0 0.00%
Chino Tadahiko 4 4 0 0 0 0 100.00%
Cho Chikun 130 61 69 0 0 0 46.92%
Cho HoonHyun 10 4 6 0 0 0 40.00%
Cho Sonjin 4 3 1 0 0 0 75.00%
Cho U 2 1 1 0 0 0 50.00%
Choi CheolHan 1 0 1 0 0 0 0.00%
Ezura Yuichi 3 3 0 0 0 0 100.00%
Fernando Aguilar 1 1 0 0 0 0 100.00%
Fujii Shuya 1 1 0 0 0 0 100.00%
Fujisawa Hideyuki 16 8 7 0 0 1 50.00%
Fujisawa Hosai 3 2 1 0 0 0 66.67%
Fukui Susumu 2 2 0 0 0 0 100.00%
Goto Shungo 1 1 0 0 0 0 100.00%
Gu Li 2 1 1 0 0 0 50.00%
Hanawa Yasutoki 1 1 0 0 0 0 100.00%
Handa Dogen 1 1 0 0 0 0 100.00%
Hane Naoki 6 3 3 0 0 0 50.00%
Hane Yasumasa 11 10 1 0 0 0 90.91%
Haruyama Isamu 2 2 0 0 0 0 100.00%
Hasegawa Sunao 2 1 1 0 0 0 50.00%
Hashimoto Shoji 16 12 4 0 0 0 75.00%
Hashimoto Utaro 7 5 2 0 0 0 71.43%
Hashimoto Yujiro 2 2 0 0 0 0 100.00%
Hikosaka Naoto 9 6 3 0 0 0 66.67%
Hisajima Kunio 1 1 0 0 0 0 100.00%
Honda Kunihisa 11 9 2 0 0 0 81.82%
Honma Akio 1 1 0 0 0 0 100.00%
Hu Yaoyu 1 0 1 0 0 0 0.00%
Imamura Toshiya 11 7 4 0 0 0 63.64%
Imamura Yoshiaki 1 0 1 0 0 0 0.00%
Inori Yoko 1 0 1 0 0 0 0.00%
Inoue Kunio 1 1 0 0 0 0 100.00%
Ishida Akira 11 10 1 0 0 0 90.91%
Ishida Yoshio 26 9 17 0 0 0 34.62%
Ishigure Ikuro 6 5 1 0 0 0 83.33%
Ishii Kunio 13 11 2 0 0 0 84.62%
Ishii Mamoru 1 1 0 0 0 0 100.00%
Ishii Shinzo 3 2 1 0 0 0 66.67%
Iwata Tatsuaki 9 9 0 0 0 0 100.00%
Iyama Yuta 2 0 2 0 0 0 0.00%
Jiang Zhujiu 1 1 0 0 0 0 100.00%
Kada Katsuji 3 3 0 0 0 0 100.00%
Kageyama Toshiro 1 1 0 0 0 0 100.00%
Kaji Kazutame 1 1 0 0 0 0 100.00%
Kajiwara Takeo 3 3 0 0 0 0 100.00%
Kamimura Haruo 6 4 2 0 0 0 66.67%
Kamimura Kunio 3 3 0 0 0 0 100.00%
Kanno Kiyonori 1 1 0 0 0 0 100.00%
Kano Yoshinori 1 1 0 0 0 0 100.00%
Kataoka Satoshi 17 12 5 0 0 0 70.59%
Kato Atsushi 2 1 1 0 0 0 50.00%
Kato Keiko 1 0 1 0 0 0 0.00%
Kato Masao 99 45 54 0 0 0 45.45%
Kawamoto Noboru 2 2 0 0 0 0 100.00%
Kishimoto Kazuo 2 2 0 0 0 0 100.00%
Kitano Ryo 1 1 0 0 0 0 100.00%
Kiyonari Tetsuya 2 2 0 0 0 0 100.00%
Ko Iso 3 2 1 0 0 0 66.67%
Ko Reibun 1 1 0 0 0 0 100.00%
Kobayashi Izumi 6 1 5 0 0 0 16.67%
Kobayashi Satoru 27 17 10 0 0 0 62.96%
Kojima Takaho 4 3 1 0 0 0 75.00%
Komatsu Hideki 11 9 2 0 0 0 81.82%
Kong Jie 1 1 0 0 0 0 100.00%
Konishi Kazuko 1 0 1 0 0 0 0.00%
Kono Rin 2 0 2 0 0 0 0.00%
Kosugi Kiyoshi 3 3 0 0 0 0 100.00%
Koyama Shizuo 2 2 0 0 0 0 100.00%
Kubo Katsuaki 1 0 1 0 0 0 0.00%
Kudo Norio 15 11 4 0 0 0 73.33%
Kurahashi Masayuki 1 1 0 0 0 0 100.00%
Kuroda Yukio 1 1 0 0 0 0 100.00%
Kurosawa Tadanao 1 0 1 0 0 0 0.00%
Kurotaki Masaki 1 1 0 0 0 0 100.00%
Lee ChangHo 4 3 1 0 0 0 75.00%
Liu Xiaoguang 5 5 0 0 0 0 100.00%
Ma Xiaochun 20 13 7 0 0 0 65.00%
Magari Reiki 1 1 0 0 0 0 100.00%
Michael Redmond 1 1 0 0 0 0 100.00%
Mimura Tomoyasu 2 2 0 0 0 0 100.00%
Miwa Yoshiro 1 1 0 0 0 0 100.00%
Miyamoto Naoki 2 2 0 0 0 0 100.00%
Miyamoto Yoshihisa 3 3 0 0 0 0 100.00%
Miyashita Shuyo 1 1 0 0 0 0 100.00%
Miyazawa Goro 8 7 1 0 0 0 87.50%
Mizokami Tomochika 1 0 1 0 0 0 0.00%
Mok JinSeok 1 0 1 0 0 0 0.00%
Morita Michihiro 1 0 1 0 0 0 0.00%
Naganuma Makoto 1 1 0 0 0 0 100.00%
Nakagawa Shinsuke 3 3 0 0 0 0 100.00%
Nakamura Hidehito 3 3 0 0 0 0 100.00%
Nakano Hironari 5 5 0 0 0 0 100.00%
Nakano Yasuhiro 1 1 0 0 0 0 100.00%
Nakaoka Jiro 1 1 0 0 0 0 100.00%
Nakaonoda Tomomi 1 1 0 0 0 0 100.00%
Nie Weiping 4 2 2 0 0 0 50.00%
Nishida Terumi 1 0 1 0 0 0 0.00%
Noguchi Hitoshi 2 2 0 0 0 0 100.00%
O Meien 7 2 5 0 0 0 28.57%
O Rissei 30 17 13 0 0 0 56.67%
Oeda Yusuke 1 1 0 0 0 0 100.00%
Ogaku Yusaku 1 1 0 0 0 0 100.00%
Ogata Masaki 3 1 2 0 0 0 33.33%
Ogawa Tomoko 1 0 1 0 0 0 0.00%
Ohira Shuzo 8 5 3 0 0 0 62.50%
Okubo Ichigen 1 1 0 0 0 0 100.00%
Ono Yutaka 1 1 0 0 0 0 100.00%
Osawa Narumi 1 0 1 0 0 0 0.00%
Ota Seido 1 1 0 0 0 0 100.00%
Otake Hideo 59 36 23 0 0 0 61.02%
Oya Koichi 1 1 0 0 0 0 100.00%
Oyama Kunio 2 2 0 0 0 0 100.00%
Park ByungKyu 1 1 0 0 0 0 100.00%
Park JiEun 1 1 0 0 0 0 100.00%
Qian Yuping 3 1 2 0 0 0 33.33%
Rin Kaiho 71 44 27 0 0 0 61.97%
Rin Kanketsu 1 0 1 0 0 0 0.00%
Rin Shien 1 0 1 0 0 0 0.00%
Ryu Shikun 15 5 10 0 0 0 33.33%
Saijo Masataka 2 1 1 0 0 0 50.00%
Sakai Hideyuki 1 1 0 0 0 0 100.00%
Sakai Maki 1 0 1 0 0 0 0.00%
Sakai Michiharu 2 2 0 0 0 0 100.00%
Sakai Takeshi 12 8 4 0 0 0 66.67%
Sakata Eio 21 13 8 0 0 0 61.90%
Sanno Hirotaka 1 1 0 0 0 0 100.00%
Sasaki Tadashi 1 0 1 0 0 0 0.00%
Sato Kaoru 1 1 0 0 0 0 100.00%
Sato Masaharu 2 1 1 0 0 0 50.00%
Sato Sunao 4 4 0 0 0 0 100.00%
Sekine Naohisa 1 1 0 0 0 0 100.00%
Seo BongSoo 4 4 0 0 0 0 100.00%
Seo Hisashi 1 1 0 0 0 0 100.00%
Seo NungWook 1 0 1 0 0 0 0.00%
Shao Zhenzhong 1 1 0 0 0 0 100.00%
Shimamura Toshihiro 7 7 0 0 0 0 100.00%
Shiraishi Yutaka 5 5 0 0 0 0 100.00%
Shuto Shun 3 2 1 0 0 0 66.67%
So Kofuku 1 1 0 0 0 0 100.00%
Song TaeKon 1 0 1 0 0 0 0.00%
Sonoda Yuichi 7 6 1 0 0 0 85.71%
Sugiuchi Masao 7 5 2 0 0 0 71.43%
Suzuki Ayumi 2 1 1 0 0 0 50.00%
Takagawa Kaku 1 1 0 0 0 0 100.00%
Takagi Shoichi 7 3 4 0 0 0 42.86%
Takao Shinji 3 1 2 0 0 0 33.33%
Takemiya Masaki 58 30 28 0 0 0 51.72%
Tei Meiko 1 1 0 0 0 0 100.00%
Tokimoto Hajime 2 2 0 0 0 0 100.00%
Tono Hiroaki 8 6 2 0 0 0 75.00%
Tozawa Akinobu 3 3 0 0 0 0 100.00%
Tsukuda Akiko 1 0 1 0 0 0 0.00%
Umeki Suguru 1 1 0 0 0 0 100.00%
Umezawa Yukari 1 0 1 0 0 0 0.00%
Ushinohama Satsuo 3 1 2 0 0 0 33.33%
Wang Jianhong 1 1 0 0 0 0 100.00%
Wang Lei 2 1 1 0 0 0 50.00%
Won SeongJin 2 0 2 0 0 0 0.00%
Xie Yimin 2 2 0 0 0 0 100.00%
Yamabe Toshiro 10 7 3 0 0 0 70.00%
Yamada Kimio 4 3 1 0 0 0 75.00%
Yamashiro Hiroshi 26 14 12 0 0 0 53.85%
Yamashita Keigo 13 5 8 0 0 0 38.46%
Yamazaki Masuo 1 1 0 0 0 0 100.00%
Yang JaeHo 1 0 1 0 0 0 0.00%
Yashiro Kumiko 2 0 2 0 0 0 0.00%
Yasuda Yasutoshi 2 1 1 0 0 0 50.00%
Yo Kaei 1 1 0 0 0 0 100.00%
Yo Kagen 3 3 0 0 0 0 100.00%
Yoda Norimoto 26 15 11 0 0 0 57.69%
Yokota Shigeaki 1 1 0 0 0 0 100.00%
Yoo ChangHyuk 3 1 2 0 0 0 33.33%
Yoon HyunSeok 1 1 0 0 0 0 100.00%
Yoshida Mika 1 0 1 0 0 0 0.00%
Yu Bin 2 0 2 0 0 0 0.00%
Yukawa Mitsuhisa 1 1 0 0 0 0 100.00%
Yuki Satoshi 9 4 5 0 0 0 44.44%
Zhou Xianheng 2 2 0 0 0 0 100.00%

Over the ranks
Rank Games Win Loss Jigo None Unkn Scoring
? 261 172 89 0 0 0 65.90%
1p 5 0 5 0 0 0 0.00%
3p 2 1 1 0 0 0 50.00%
4p 8 4 4 0 0 0 50.00%
5p 24 16 8 0 0 0 66.67%
6p 34 24 10 0 0 0 70.59%
7p 50 35 15 0 0 0 70.00%
8p 62 39 23 0 0 0 62.90%
9p 755 445 309 0 0 1 58.94%

Over the length
Moves Games Win Loss Jigo None Unkn Scoring
0- 50 2 0 2 0 0 0 0.00%
50-100 12 10 2 0 0 0 83.33%
100-150 153 127 26 0 0 0 83.01%
150-200 298 206 92 0 0 0 69.13%
200-250 385 211 174 0 0 0 54.81%
250-300 324 166 157 0 0 1 51.23%
300-350 27 16 11 0 0 0 59.26%

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