JPN Kobayashi Koichi

Place: Fukushima, Japan

Rating: 2207.05, Rank: 253

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

Top rating: 2213.10 (2015-03-29)

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

Gy1: 0, Gy2: 0, Gy5: 27

12th Middle-dan Players Tournament
Date 2015-07-20 Rating 2207.05
Round Color Result Opponent
1 White Loss JPN Miyagawa Junzo 2159.50
2 White Loss JPN Hata Masayuki 2115.71
4 White Win JPN Mano Yoshihisa 2277.44
5 Black Loss JPN Tachi Masaya 2400.96
6 Black Win JPN Kubo Izumi 2011.77
32nd Aomori Championship
Date 2015-07-05 Rating 2207.71
Round Color Result Opponent
1 Black Win JPN Yamamoto Harue 1644.62
2 White Win JPN Miyamoto Syunju 2044.58
3 Black Draw JPN Tanno Yoshitaka 2100.34
4 White Win JPN Gakumazawa Hideaki 2120.13
5 Black Loss JPN Ooshina Seiichi 1984.49
7th Tohoku Championship
Date 2015-04-12 Rating 2212.93
Round Color Result Opponent
1 White Win JPN Miyamoto Syunju 2022.26
2 Black Win JPN Ishitani Shin-ichi 2338.18
3 Black Loss JPN Okabe Hiroshi 2645.63
4 Black Win JPN Kusajima Masato 2183.77
5 White Loss JPN Gakumazawa Hideaki 2119.02
10th All Japan Championship
Date 2015-03-29 Rating 2213.10
Round Color Result Opponent
1 Black Loss JPN Nakayama Tomoharu 2650.31
2 Black Win JPN Kon Akira 1914.79
3 Black Win JPN Nagao Noriaki 2227.14
4 Black Loss JPN Tamada Yoichi 2485.95
5 White Win JPN Ono Takayuki 2259.65
6 White Loss JPN Sato Kiyotomi 2408.32
Sendai Memorial Cup
Date 2015-03-01 Rating 2211.89
Round Color Result Opponent
1 White Win JPN Kusajima Masato 2182.34
2 Black Win JPN Miyamoto Syunju 2015.28
3 Black Win JPN Miura Hitoshi 1745.42
4 Black Win JPN Gakumazawa Hideaki 2115.87
5 Black Win JPN Hirono Masakazu 1943.17
6 White Win JPN Seiryu Masanori 1937.34
33th Aomori Meijinsen
Date 2014-11-09 Rating 2194.77
Round Color Result Opponent
1 Black Win JPN Yamamoto Harue 1659.39
2 Black Win JPN Gakumazawa Hideaki 2104.40
3 White Win JPN Koseki Kenshou 1652.87
4 Black Win JPN Tanno Yoshitaka 2099.50
5 White Win JPN Shimoda Hiroyasu 1540.09
1st Senior Masters Championship
Date 2014-08-29 Rating 2179.22
Round Color Result Opponent
1 White Win JPN Kubo Izumi 2015.73
2 White Loss JPN Kato Yasuhiro 2015.56
3 White Loss JPN Isobe Taizan 2346.59
4 Black Loss JPN Miyagawa Junzo 2140.92
5 Black Win JPN Miura Hitoshi 1752.31
6 Black Loss JPN Mitsumori Masao 2258.69
7 Black Loss JPN Ishitani Shin-ichi 2361.39
31th Kanto Championship
Date 2014-05-11 Rating 2170.50
Round Color Result Opponent
1 Black Win JPN Demachi Koichiro 1876.04
2 Black Loss JPN Okabe Hiroshi 2662.02
3 Black Win JPN Tada Ayako 2234.84
4 Black Loss JPN Ishitani Shin-ichi 2363.26
5 Black Loss JPN Ono Takayuki 2296.76
6th Tohoku Championship
Date 2014-04-20 Rating 2168.65
Round Color Result Opponent
1 Black Loss JPN Sato Kiyotomi 2383.70
2 Black Loss JPN Gakumazawa Hideaki 2094.18
3 Black Win JPN Miura Hitoshi 1753.79
4 White Win JPN Kusajima Masato 2164.79
6 Black Win JPN Hirono Masakazu 1943.79
7 Black Loss JPN Okabe Hiroshi 2662.99
9th All Japan Championship
Date 2014-01-26 Rating 2161.83
Round Color Result Opponent
1 White Loss JPN Fukui Nobuhiro 2519.36
2 White Loss KOR Kim Chang-Su 2005.87
3 Black Win JPN Miyagawa Junzo 2127.58
4 Black Loss JPN Kubo Izumi 2031.60
5 Black Win JPN Maruyama Yasushi 2214.68
6 White Loss JPN Nakayama Tomoharu 2587.83
11th Middle-dan players Tournament
Date 2013-08-17 Rating 2155.36
Round Color Result Opponent
1 Black Loss JPN Tamada Yoichi 2429.01
2 White Win JPN Kubo Izumi 2017.98
3 Black Win JPN Mano Yoshihisa 2234.55
4 Black Draw JPN Nagao Noriaki 2304.87
5 Black Loss JPN Nakayama Tomoharu 2568.06
6 Black Win JPN Maruta Hiroki 2059.69
51 Meijinsen Qualification East-Japan area 1st round
Date 2013-06-16 Rating 2147.20
Round Color Result Opponent
1 Black Loss JPN Kudomi Takahiro 2314.84
2 Black Loss JPN Mitsumori Masao 2259.41
3 Black Loss JPN Ono Takayuki 2308.28
4 White Loss JPN Isobe Taizan 2320.31
5th Tohoku Championship
Date 2013-04-14 Rating 2144.39
Round Color Result Opponent
1 Black Win JPN Nakamura Shigeru 2781.01
2 Black Loss JPN Maruta Hiroki 2069.70
3 Black Loss JPN Kudomi Takahiro 2326.76
4 Black Loss JPN Hirono Masakazu 1960.19
5 Black Win JPN Miura Hitoshi 1777.64
8th All Japan Championship
Date 2013-03-24 Rating 2144.27
Round Color Result Opponent
1 Black Loss JPN Okabe Hiroshi 2644.20
2 White Loss JPN Fujikawa Masaki 1962.09
3 Black Win JPN Tomobe Katsuhiro 2092.67
4 White Draw JPN Iwano Fumio 2115.44
5 Black Loss JPN Nagao Noriaki 2316.87
6 Black Win JPN Tada Ayako 2221.01
16th Mikami Cup Tournament
Date 2013-01-20 Rating 2144.25
Round Color Result Opponent
S1 White Loss JPN Isobe Taizan 2330.74
S3 Black Loss JPN Mitsumori Masao 2267.92
S4 Black Loss JPN Kudomi Takahiro 2331.67
S5 White Loss JPN Nagao Noriaki 2320.40
10th Middle-dan players Tournament
Date 2012-08-26 Rating 2156.24
Round Color Result Opponent
1 White Loss JPN Nagao Noriaki 2325.74
2 Black Win JPN Suzuki Junichiro 1865.37
3 White Win JPN Kato Yasuhiro 2029.68
4 Black Win JPN Miyagawa Junzo 2138.54
5 Black Win JPN Kashihara Akihiko 2229.65
6 White Loss JPN Ono Takayuki 2346.60
50 Meijinsen Qualification East-Japan area 2nd round
Date 2012-07-08 Rating 2156.47
Round Color Result Opponent
1 White Loss JPN Nakamura Shigeru 2793.53
2 White Loss JPN Kudomi Takahiro 2336.51
3 Black Loss JPN Ono Takayuki 2346.36
30th Aomori Championship
Date 2012-07-01 Rating 2156.78
Round Color Result Opponent
1 White Win JPN Yamamoto Yuuichi 1656.46
2 Black Win JPN Miura Hitoshi 1834.03
3 Black Win JPN Tanno Yoshitaka 2079.72
4 White Win JPN Yamamoto Harue 1649.88
5 White Win KOR Kim Chang-Su 1983.74
50 Meijinsen Qualification East-Japan area 1st round
Date 2012-06-03 Rating 2156.15
Round Color Result Opponent
1 Black Win JPN Isobe Taizan 2333.00
2 White Win JPN Ono Takayuki 2344.45
3 Black Loss JPN Kudomi Takahiro 2338.60
4 Black Win JPN Iwano Fumio 2078.80
4th Tohoku Championship
Date 2012-04-08 Rating 2148.19
Round Color Result Opponent
1 Black Loss JPN Sato Kiyotomi 2323.50
2 White Win JPN Suzuki Junichiro 1877.05
3 Black Win JPN Maruta Koji 2059.46
4 Black Win JPN Hirono Masakazu 1957.01
5 White Draw JPN Gakumazawa Hideaki 2049.51
15th Mikami Cup Tournament
Date 2012-03-11 Rating 2143.40
Round Color Result Opponent
S1 Black Loss JPN Nakamura Shigeru 2789.29
S2 White Loss JPN Isobe Taizan 2341.55
S3 Black Loss JPN Kudomi Takahiro 2337.66
S4 Black Win JPN Tadokoro Hosai 1832.69
S5 White Loss JPN Oosumi Yuuki 2703.42
7th All Japan Championship
Date 2012-01-29 Rating 2137.47
Round Color Result Opponent
1 Black Loss JPN Nakayama Tomoharu 2517.52
2 Black Win JPN Matsuoka Teruo 1956.38
3 Black Loss JPN Mitsumori Masao 2291.66
4 White Win JPN Fujikawa Masaki 1996.61
5 Black Loss JPN Kamiya Shunsuke 2397.57
6 White Win JPN Kato Yasuhiro 2009.40
12 Kanto Renju Emperor Tournament 1st round
Date 2011-10-23 Rating 2121.35
Round Color Result Opponent
1 Black Loss JPN Mitsumori Masao 2288.65
2 White Loss JPN Fukui Nobuhiro 2387.98
3 White Win JPN Suzuki Rin 1931.01
4 Black Win JPN Kato Yasuhiro 2009.57
51 Suiseisen Tournament
Date 2011-09-11 Rating 2114.00
Round Color Result Opponent
1 White Loss JPN Tada Ayako 2189.58
2 White Win JPN Iwano Fumio 2068.42
3 Black Loss JPN Maruta Hiroki 2034.20
4 White Win JPN Suzuki Rin 1929.69
3rd Tohoku Championship
Date 2011-02-27 Rating 2084.26
Round Color Result Opponent
2 White Loss JPN Tamada Yoichi 2421.92
3 Black Win JPN Hirono Masakazu 1958.08
4 Black Loss JPN Ishitani Shin-ichi 2311.83
5 Black Win JPN Tanno Yoshitaka 2040.37
14th Mikami Cup Tournament
Date 2011-01-30 Rating 2079.13
Round Color Result Opponent
A1 White Loss JPN Nakayama Tomoharu 2460.97
A2 Black Loss JPN Suzuki Rin 1936.18
A3 Black Win JPN Kon Akira 1936.96
A4 White Loss JPN Fujikawa Masaki 2011.98
A5 Black Win JPN Omata Mitsuo 1706.97
11 Kanto Renju Emperor Tournament 1st round
Date 2010-10-31 Rating 2069.06
Round Color Result Opponent
1 Black Loss JPN Kamiya Shunsuke 2347.50
3 White Loss JPN Tada Ayako 2163.96
4 Black Loss JPN Suzuki Rin 1933.14
5th All Japan Championship
Date 2010-03-21 Rating 2064.60
Round Color Result Opponent
1 White Loss JPN Okabe Hiroshi 2599.58
2 White Draw JPN Kusajima Masato 2103.56
3 Black Win JPN Mitsumori Masao 2240.49
4 Black Win JPN Miyoshi Takeo 2061.25
5 White Loss JPN Nagao Noriaki 2336.73
6 Black Loss JPN Nakayama Tomoharu 2388.91
2nd Tohoku Championship
Date 2010-03-14 Rating 2063.97
Round Color Result Opponent
1 Black Win JPN Sato Kiyotomi 2314.22
2 Black Loss JPN Kusajima Masato 2103.95
3 Black Loss JPN Seiryu Masanori 1937.27
4 Black Loss JPN Gakumazawa Hideaki 2017.92
5 Black Win JPN Sato Ryota 1450.16
13th Mikami Cup Tournament
Date 2010-01-31 Rating 2062.87
Round Color Result Opponent
A1 White Loss JPN Matsuoka Teruo 1937.26
A2 Black Win JPN Kon Akira 1921.29
A3 Black Win JPN Tanji Hiroki 1950.03
A4 White Win JPN Kimura Kenichiro 2154.06
A5 White Loss JPN Tamada Yoichi 2359.98
8th Middle-dan Players Tournament
Date 2009-08-30 Rating 2053.63
Round Color Result Opponent
1 White Loss JPN Gakumazawa Hideaki 2004.61
2 Black Win JPN Yamamoto Yasuhiro 2097.57
3 White Win JPN Kato Yasuhiro 1978.70
4 White Loss JPN Ono Takayuki 2304.81
5 Black Win JPN Miyagawa Junzo 2129.29
6 Black Loss JPN Sato Kiyotomi 2321.98
4th All Japan Championship
Date 2009-03-21 Rating 2036.38
Round Color Result Opponent
1 Black Loss JPN Oosumi Yuuki 2549.96
2 Black Win JPN Kuramoto Hideharu 1881.36
3 White Loss JPN Sato Kiyotomi 2320.60
4 Black Loss JPN Maruta Hiroki 2012.63
5 Black Win JPN Kato Yasuhiro 1945.01
6 Black Loss JPN Miyoshi Takeo 2128.60
1st Tohoku Championship
Date 2009-02-22 Rating 2034.41
Round Color Result Opponent
1 Black Loss JPN Ishitani Shin-ichi 2283.33
3 Black Win JPN Sato Ryota 1469.95
4 Black Win JPN Miura Hitoshi 1868.52
5 White Loss JPN Sato Kiyotomi 2319.42
12th Mikami Cup Tournament
Date 2009-01-18 Rating 2031.97
Round Color Result Opponent
A4 Black Loss JPN Fujikawa Masaki 2005.21
25th Kanto Shineisen Tournament
Date 2008-04-13 Rating 2023.62
Round Color Result Opponent
1 White Loss JPN Tamada Yoichi 2177.49
2 Black Win JPN Watanabe Yoko 1936.88
3 Black Win JPN Matsuoka Teruo 1858.60
4 White Win JPN Watanabe Tatsuya 2046.24
5 Black Loss JPN Fujikawa Masaki 2036.02
11th Mikami Cup Tournament, A-Class
Date 2008-01-20 Rating 2018.53
Round Color Result Opponent
1 White Win JPN Fujikawa Masaki 2037.56
2 White Loss JPN Tamada Yoichi 2161.53
3 White Win JPN Matsuoka Teruo 1854.62
4 Black Loss JPN Tanizaki Ryusuke 2041.95
4 White Loss JPN Takeuchi Shunsuke 2001.87