JPN Kobayashi Koichi

Place: Fukushima, Japan

Rating: 2209.29, Rank: 256

First game: 2008-01-20, Last game: 2015-07-20

Top rating: 2215.38 (2015-03-29)

Games: 178, Wins: 84, Draws: 5, Losses: 89

Gy1: 0, Gy2: 0, Gy5: 10

12th Middle-dan Players Tournament
Date 2015-07-20 Rating 2209.29
Round Color Result Opponent
1 White Loss JPN Miyagawa Junzo 2161.02
2 White Loss JPN Hata Masayuki 2113.44
4 White Win JPN Mano Yoshihisa 2278.19
5 Black Loss JPN Tachi Masaya 2402.44
6 Black Win JPN Kubo Izumi 2013.66
32nd Aomori Championship
Date 2015-07-05 Rating 2209.97
Round Color Result Opponent
1 Black Win JPN Yamamoto Harue 1647.16
2 White Win JPN Miyamoto Syunju 2048.31
3 Black Draw JPN Tanno Yoshitaka 2103.83
4 White Win JPN Gakumazawa Hideaki 2123.69
5 Black Loss JPN Ooshina Seiichi 1988.09
7th Tohoku Championship
Date 2015-04-12 Rating 2215.21
Round Color Result Opponent
1 White Win JPN Miyamoto Syunju 2025.89
2 Black Win JPN Ishitani Shin-ichi 2340.01
3 Black Loss JPN Okabe Hiroshi 2647.43
4 Black Win JPN Kusajima Masato 2186.75
5 White Loss JPN Gakumazawa Hideaki 2122.43
10th All Japan Championship
Date 2015-03-29 Rating 2215.38
Round Color Result Opponent
1 Black Loss JPN Nakayama Tomoharu 2652.15
2 Black Win JPN Kon Akira 1916.82
3 Black Win JPN Nagao Noriaki 2229.20
4 Black Loss JPN Tamada Yoichi 2488.02
5 White Win JPN Ono Takayuki 2262.28
6 White Loss JPN Sato Kiyotomi 2410.66
Sendai Memorial Cup
Date 2015-03-01 Rating 2214.17
Round Color Result Opponent
1 White Win JPN Kusajima Masato 2185.28
2 Black Win JPN Miyamoto Syunju 2018.86
3 Black Win JPN Miura Hitoshi 1748.06
4 Black Win JPN Gakumazawa Hideaki 2119.22
5 Black Win JPN Hirono Masakazu 1946.82
6 White Win JPN Seiryu Masanori 1939.65
33th Aomori Meijinsen
Date 2014-11-09 Rating 2197.01
Round Color Result Opponent
1 Black Win JPN Yamamoto Harue 1661.82
2 Black Win JPN Gakumazawa Hideaki 2107.58
3 White Win JPN Koseki Kenshou 1655.57
4 Black Win JPN Tanno Yoshitaka 2102.70
5 White Win JPN Shimoda Hiroyasu 1542.02
1st Senior Masters Championship
Date 2014-08-29 Rating 2181.44
Round Color Result Opponent
1 White Win JPN Kubo Izumi 2017.62
2 White Loss JPN Kato Yasuhiro 2017.94
3 White Loss JPN Isobe Taizan 2348.50
4 Black Loss JPN Miyagawa Junzo 2142.58
5 Black Win JPN Miura Hitoshi 1754.84
6 Black Loss JPN Mitsumori Masao 2261.15
7 Black Loss JPN Ishitani Shin-ichi 2363.07
31th Kanto Championship
Date 2014-05-11 Rating 2172.67
Round Color Result Opponent
1 Black Win JPN Demachi Koichiro 1879.11
2 Black Loss JPN Okabe Hiroshi 2663.52
3 Black Win JPN Tada Ayako 2236.83
4 Black Loss JPN Ishitani Shin-ichi 2364.86
5 Black Loss JPN Ono Takayuki 2298.87
6th Tohoku Championship
Date 2014-04-20 Rating 2170.81
Round Color Result Opponent
1 Black Loss JPN Sato Kiyotomi 2385.71
2 Black Loss JPN Gakumazawa Hideaki 2097.10
3 Black Win JPN Miura Hitoshi 1756.26
4 White Win JPN Kusajima Masato 2167.46
6 Black Win JPN Hirono Masakazu 1947.02
7 Black Loss JPN Okabe Hiroshi 2664.47
9th All Japan Championship
Date 2014-01-26 Rating 2163.94
Round Color Result Opponent
1 White Loss JPN Fukui Nobuhiro 2520.93
2 White Loss KOR Kim Chang-Su 2007.95
3 Black Win JPN Miyagawa Junzo 2129.20
4 Black Loss JPN Kubo Izumi 2033.47
5 Black Win JPN Maruyama Yasushi 2215.77
6 White Loss JPN Nakayama Tomoharu 2589.66
11th Middle-dan players Tournament
Date 2013-08-17 Rating 2157.42
Round Color Result Opponent
1 Black Loss JPN Tamada Yoichi 2430.83
2 White Win JPN Kubo Izumi 2019.87
3 Black Win JPN Mano Yoshihisa 2235.87
4 Black Draw JPN Nagao Noriaki 2306.78
5 Black Loss JPN Nakayama Tomoharu 2570.00
6 Black Win JPN Maruta Hiroki 2061.93
51 Meijinsen Qualification East-Japan area 1st round
Date 2013-06-16 Rating 2149.24
Round Color Result Opponent
1 Black Loss JPN Kudomi Takahiro 2316.53
2 Black Loss JPN Mitsumori Masao 2261.55
3 Black Loss JPN Ono Takayuki 2310.11
4 White Loss JPN Isobe Taizan 2322.21
5th Tohoku Championship
Date 2013-04-14 Rating 2146.42
Round Color Result Opponent
1 Black Win JPN Nakamura Shigeru 2782.36
2 Black Loss JPN Maruta Hiroki 2071.88
3 Black Loss JPN Kudomi Takahiro 2328.49
4 Black Loss JPN Hirono Masakazu 1963.03
5 Black Win JPN Miura Hitoshi 1779.90
8th All Japan Championship
Date 2013-03-24 Rating 2146.30
Round Color Result Opponent
1 Black Loss JPN Okabe Hiroshi 2645.62
2 White Loss JPN Fujikawa Masaki 1964.71
3 Black Win JPN Tomobe Katsuhiro 2094.98
4 White Draw JPN Iwano Fumio 2117.70
5 Black Loss JPN Nagao Noriaki 2318.73
6 Black Win JPN Tada Ayako 2223.00
16th Mikami Cup Tournament
Date 2013-01-20 Rating 2146.26
Round Color Result Opponent
S1 White Loss JPN Isobe Taizan 2332.62
S3 Black Loss JPN Mitsumori Masao 2270.00
S4 Black Loss JPN Kudomi Takahiro 2333.44
S5 White Loss JPN Nagao Noriaki 2322.25
10th Middle-dan players Tournament
Date 2012-08-26 Rating 2158.22
Round Color Result Opponent
1 White Loss JPN Nagao Noriaki 2327.54
2 Black Win JPN Suzuki Junichiro 1866.33
3 White Win JPN Kato Yasuhiro 2031.68
4 Black Win JPN Miyagawa Junzo 2140.21
5 Black Win JPN Kashihara Akihiko 2231.63
6 White Loss JPN Ono Takayuki 2348.23
50 Meijinsen Qualification East-Japan area 2nd round
Date 2012-07-08 Rating 2158.43
Round Color Result Opponent
1 White Loss JPN Nakamura Shigeru 2794.81
2 White Loss JPN Kudomi Takahiro 2338.39
3 Black Loss JPN Ono Takayuki 2347.96
30th Aomori Championship
Date 2012-07-01 Rating 2158.74
Round Color Result Opponent
1 White Win JPN Yamamoto Yuuichi 1658.03
2 Black Win JPN Miura Hitoshi 1836.14
3 Black Win JPN Tanno Yoshitaka 2082.07
4 White Win JPN Yamamoto Harue 1651.90
5 White Win KOR Kim Chang-Su 1985.81
50 Meijinsen Qualification East-Japan area 1st round
Date 2012-06-03 Rating 2158.11
Round Color Result Opponent
1 Black Win JPN Isobe Taizan 2334.91
2 White Win JPN Ono Takayuki 2346.03
3 Black Loss JPN Kudomi Takahiro 2340.51
4 Black Win JPN Iwano Fumio 2080.88
4th Tohoku Championship
Date 2012-04-08 Rating 2150.15
Round Color Result Opponent
1 Black Loss JPN Sato Kiyotomi 2325.40
2 White Win JPN Suzuki Junichiro 1877.96
3 Black Win JPN Maruta Koji 2061.66
4 Black Win JPN Hirono Masakazu 1959.53
5 White Draw JPN Gakumazawa Hideaki 2051.68
15th Mikami Cup Tournament
Date 2012-03-11 Rating 2145.35
Round Color Result Opponent
S1 Black Loss JPN Nakamura Shigeru 2790.57
S2 White Loss JPN Isobe Taizan 2343.47
S3 Black Loss JPN Kudomi Takahiro 2339.57
S4 Black Win JPN Tadokoro Hosai 1834.86
S5 White Loss JPN Oosumi Yuuki 2703.82
7th All Japan Championship
Date 2012-01-29 Rating 2139.42
Round Color Result Opponent
1 Black Loss JPN Nakayama Tomoharu 2519.62
2 Black Win JPN Matsuoka Teruo 1958.33
3 Black Loss JPN Mitsumori Masao 2293.71
4 White Win JPN Fujikawa Masaki 1998.87
5 Black Loss JPN Kamiya Shunsuke 2398.88
6 White Win JPN Kato Yasuhiro 2011.35
12 Kanto Renju Emperor Tournament 1st round
Date 2011-10-23 Rating 2123.28
Round Color Result Opponent
1 Black Loss JPN Mitsumori Masao 2290.73
2 White Loss JPN Fukui Nobuhiro 2389.74
3 White Win JPN Suzuki Rin 1932.97
4 Black Win JPN Kato Yasuhiro 2011.49
51 Suiseisen Tournament
Date 2011-09-11 Rating 2115.93
Round Color Result Opponent
1 White Loss JPN Tada Ayako 2191.45
2 White Win JPN Iwano Fumio 2070.40
3 Black Loss JPN Maruta Hiroki 2036.22
4 White Win JPN Suzuki Rin 1931.64
3rd Tohoku Championship
Date 2011-02-27 Rating 2086.16
Round Color Result Opponent
2 White Loss JPN Tamada Yoichi 2423.56
3 Black Win JPN Hirono Masakazu 1960.32
4 Black Loss JPN Ishitani Shin-ichi 2313.48
5 Black Win JPN Tanno Yoshitaka 2042.42
14th Mikami Cup Tournament
Date 2011-01-30 Rating 2081.03
Round Color Result Opponent
A1 White Loss JPN Nakayama Tomoharu 2462.63
A2 Black Loss JPN Suzuki Rin 1938.08
A3 Black Win JPN Kon Akira 1938.94
A4 White Loss JPN Fujikawa Masaki 2014.06
A5 Black Win JPN Omata Mitsuo 1711.68
11 Kanto Renju Emperor Tournament 1st round
Date 2010-10-31 Rating 2070.94
Round Color Result Opponent
1 Black Loss JPN Kamiya Shunsuke 2348.74
3 White Loss JPN Tada Ayako 2165.77
4 Black Loss JPN Suzuki Rin 1935.02
5th All Japan Championship
Date 2010-03-21 Rating 2066.42
Round Color Result Opponent
1 White Loss JPN Okabe Hiroshi 2601.13
2 White Draw JPN Kusajima Masato 2105.18
3 Black Win JPN Mitsumori Masao 2243.23
4 Black Win JPN Miyoshi Takeo 2063.15
5 White Loss JPN Nagao Noriaki 2338.27
6 Black Loss JPN Nakayama Tomoharu 2390.40
2nd Tohoku Championship
Date 2010-03-14 Rating 2065.80
Round Color Result Opponent
1 Black Win JPN Sato Kiyotomi 2316.17
2 Black Loss JPN Kusajima Masato 2105.56
3 Black Loss JPN Seiryu Masanori 1938.97
4 Black Loss JPN Gakumazawa Hideaki 2019.76
5 Black Win JPN Sato Ryota 1451.76
13th Mikami Cup Tournament
Date 2010-01-31 Rating 2064.68
Round Color Result Opponent
A1 White Loss JPN Matsuoka Teruo 1939.15
A2 Black Win JPN Kon Akira 1923.16
A3 Black Win JPN Tanji Hiroki 1951.71
A4 White Win JPN Kimura Kenichiro 2155.67
A5 White Loss JPN Tamada Yoichi 2361.58
8th Middle-dan Players Tournament
Date 2009-08-30 Rating 2055.41
Round Color Result Opponent
1 White Loss JPN Gakumazawa Hideaki 2006.39
2 Black Win JPN Yamamoto Yasuhiro 2099.33
3 White Win JPN Kato Yasuhiro 1980.45
4 White Loss JPN Ono Takayuki 2306.38
5 Black Win JPN Miyagawa Junzo 2131.18
6 Black Loss JPN Sato Kiyotomi 2323.96
4th All Japan Championship
Date 2009-03-21 Rating 2038.12
Round Color Result Opponent
1 Black Loss JPN Oosumi Yuuki 2552.06
2 Black Win JPN Kuramoto Hideharu 1883.18
3 White Loss JPN Sato Kiyotomi 2322.63
4 Black Loss JPN Maruta Hiroki 2014.34
5 Black Win JPN Kato Yasuhiro 1946.75
6 Black Loss JPN Miyoshi Takeo 2130.81
1st Tohoku Championship
Date 2009-02-22 Rating 2036.15
Round Color Result Opponent
1 Black Loss JPN Ishitani Shin-ichi 2285.49
3 Black Win JPN Sato Ryota 1471.52
4 Black Win JPN Miura Hitoshi 1870.19
5 White Loss JPN Sato Kiyotomi 2321.46
12th Mikami Cup Tournament
Date 2009-01-18 Rating 2033.70
Round Color Result Opponent
A4 Black Loss JPN Fujikawa Masaki 2007.04
25th Kanto Shineisen Tournament
Date 2008-04-13 Rating 2025.26
Round Color Result Opponent
1 White Loss JPN Tamada Yoichi 2179.05
2 Black Win JPN Watanabe Yoko 1938.13
3 Black Win JPN Matsuoka Teruo 1860.34
4 White Win JPN Watanabe Tatsuya 2047.80
5 Black Loss JPN Fujikawa Masaki 2037.80
11th Mikami Cup Tournament, A-Class
Date 2008-01-20 Rating 2020.14
Round Color Result Opponent
1 White Win JPN Fujikawa Masaki 2039.32
2 White Loss JPN Tamada Yoichi 2163.08
3 White Win JPN Matsuoka Teruo 1856.33
4 Black Loss JPN Tanizaki Ryusuke 2043.75
4 White Loss JPN Takeuchi Shunsuke 2003.17