Tanaka Koichi (田中幸一)
Place: Fukuoka, Japan
Rating: 2385.66, Std: 347.02, Rank: -
First game: 2003-04-20, Last game: 2009-10-17
Top rating: 2385.66 (2009-10-17)
Games: 50, Wins: 32, Draws: 6, Losses: 12
Gy1: 0, Gy2: 0, Gy5: 0
| 4th Kyushu Championship | ||||
|---|---|---|---|---|
| Date | 2009-10-17 | Rating | 2385.66 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Hiwatashi Kikuma | 1810.81 |
| 2 | Black | Win | Kuga Akio | 2300.26 |
| 3 | Black | Draw | Fujii Naoki | 2093.84 |
| 3rd Kyushu Championship | ||||
| Date | 2008-10-26 | Rating | 2382.82 | |
| Round | Color | Result | Opponent | |
| A | White | Win | Sagara Satoshi | 1468.48 |
| A | White | Win | Yamaguchi Kazuhisa | 2113.31 |
| A | White | Win | Hiwatashi Kikuma | 1835.57 |
| A | White | Win | Fujii Naoki | 2108.28 |
| 2nd Fujinami Cup Tournament | ||||
| Date | 2007-02-25 | Rating | 2351.44 | |
| Round | Color | Result | Opponent | |
| A | White | Loss | Kuga Akio | 2317.89 |
| A | White | Win | Fujii Naoki | 2125.71 |
| A | Black | Win | Fujii Naoki | 2125.71 |
| A | Black | Loss | Kuga Akio | 2317.89 |
| Kyushu Championship | ||||
| Date | 2006-11-12 | Rating | 2353.82 | |
| Round | Color | Result | Opponent | |
| A | White | Win | Nishimura Toshio | 2346.46 |
| A | White | Loss | Yamaguchi Yusui | 2639.84 |
| A | White | Win | Kuga Akio | 2312.72 |
| A | Black | Win | Hiwatashi Kikuma | 1904.64 |
| Meijin-sen Qual, Kyushu area final round | ||||
| Date | 2006-06-18 | Rating | 2343.45 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Fujii Naoki | 2147.07 |
| 2 | White | Loss | Fujii Naoki | 2147.07 |
| 3 | Black | Win | Fujii Naoki | 2147.07 |
| 1st Kyushu Championship - Final A class | ||||
| Date | 2005-11-20 | Rating | 2334.88 | |
| Round | Color | Result | Opponent | |
| Black | Win | Fujii Naoki | 2169.21 | |
| Black | Win | Hiwatashi Kikuma | 1943.10 | |
| Black | Win | Fukushima Yoshitaka | 1988.83 | |
| Black | Draw | Yamaguchi Kazuhisa | 2020.04 | |
| The 43rd Meijin-sen Tournament | ||||
| Date | 2005-09-19 | Rating | 2331.43 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Sato Kiyotomi | 2390.50 |
| 2 | Black | Win | Kawate Kozo | 2171.09 |
| 3 | White | Win | Matsuura Hiroshi | 2347.39 |
| 4 | Black | Loss | Hasegawa Kazuto | 2700.66 |
| 5 | White | Draw | Yamaguchi Yusui | 2587.65 |
| 6 | White | Loss | Okabe Hiroshi | 2587.57 |
| 7 | Black | Loss | Ishitani Shin-ichi | 2396.74 |
| 8 | White | Draw | Takashima Junya | 2508.59 |
| 9 | White | Loss | Oosumi Yuuki | 2390.32 |
| 43rd Meijinsen Qualification: Kyushu - final round | ||||
| Date | 2005-05-15 | Rating | 2326.85 | |
| Round | Color | Result | Opponent | |
| Black | Win | Fujii Naoki | 2178.75 | |
| Black | Win | Sakashita Shoichi | 2172.73 | |
| Black | Win | Tanaka Tadanobu | 2055.82 | |
| 43rd Meijinsen Qualification: Kyushu 1st round | ||||
| Date | 2005-04-24 | Rating | 2324.30 | |
| Round | Color | Result | Opponent | |
| White | Win | Kawamoto Kenji | 1952.36 | |
| White | Draw | Yamaguchi Kazuhisa | 2021.59 | |
| White | Win | Tanaka Tadanobu | 2058.54 | |
| White | Win | Fujii Naoki | 2178.59 | |
| Kyushu Shinjinousen Tournament | ||||
| Date | 2005-03-13 | Rating | 2318.13 | |
| Round | Color | Result | Opponent | |
| White | Win | Yamashita Akiharu | 1659.02 | |
| White | Win | Urata Ueo | 1718.09 | |
| White | Win | Shimabukuro Wataru | 2003.10 | |
| White | Win | Kawamoto Kenji | 1955.43 | |
| 42nd Meijinsen Qualification: Kyushu 1st Group A | ||||
| Date | 2004-04-18 | Rating | 2258.69 | |
| Round | Color | Result | Opponent | |
| White | Loss | Fujinami Hisao | 2335.56 | |
| White | Draw | Sakashita Shoichi | 2198.84 | |
| White | Win | Nakamura Kenichi | 1895.19 | |
| 41st Meijinsen Qualification: Kyushu - 1st round Group B | ||||
| Date | 2003-04-20 | Rating | 2207.75 | |
| Round | Color | Result | Opponent | |
| White | Loss | Sakashita Shoichi | 2182.03 | |
| White | Loss | Kuga Akio | 2374.76 | |
| Black | Win | Sagara Satoshi | 1499.28 | |
| Black | Win | Kawano Masatoshi | 1775.18 | |
| Black | Win | Nishida Yasuji | 1932.38 | |