JPN Iio Yoshihiro

Place: Kobe, Japan

Rating: 2320.07, Rank: 151

First game: 2000-05-21, Last game: 2020-06-21

Top rating: 2470.73 (2016-05-15)

Games: 562, Wins: 283, Draws: 68, Losses: 211

Gy1: 20, Gy2: 37, Gy5: 136

58 Meijinsen Qualificatuion Kansai area 1st round
Date 2020-06-21 Rating 2320.07
Round Color Result Opponent
1 Black Win JPN Hata Masayuki 2062.39
2 Black Loss JPN Sakamoto Hirouji 2188.56
3 White Loss JPN Makino Mitsunori 2207.99
4 White Win JPN Kito Shinichi 2126.67
5 White Loss JPN Tachi Masaya 2458.37
15 Kansai Championship 2nd round
Date 2020-02-16 Rating 2331.44
Round Color Result Opponent
1 White Win JPN Kito Shinichi 2120.06
2 White Win JPN Hayashi Shoichi 2099.53
3 Black Loss JPN Makino Mitsunori 2197.22
15th All Japan Championship
Date 2020-01-19 Rating 2334.49
Round Color Result Opponent
1 White Win JPN Hata Masayuki 2076.73
2 Black Loss JPN Nakayama Tomoharu 2745.53
3 White Loss JPN Makino Mitsunori 2193.91
4 Black Win JPN Fujita Maiko 2235.19
5 White Win JPN Ishitani Shin-ichi 2312.31
6 White Loss JPN Okabe Hiroshi 2633.17
51 Kyoto Classified Tournament
Date 2019-11-04 Rating 2342.27
Round Color Result Opponent
S1 White Win JPN Ozawa Tetsushi 1911.96
S2 Black Loss JPN Tanaka Toshiki 2422.50
S3 Black Win JPN Nishida Toshio 1995.48
S4 White Loss JPN Hasegawa Kazuto 2541.57
S5 White Loss JPN Kawamura Norihiko 2590.22
14 Kansai Championship final match R3
Date 2019-08-19 Rating 2353.73
Round Color Result Opponent
3 Black Loss JPN Hasegawa Kazuto 2537.09
57 Meijinsen Qualification Kansai area 1st round
Date 2019-05-19 Rating 2369.19
Round Color Result Opponent
1 White Win JPN Tanaka Toshiki 2418.72
2 White Loss JPN Hasegawa Kazuto 2526.75
3 White Loss JPN Tachi Masaya 2462.30
4 Black Win JPN Matsui Tsunehiro 2092.61
14 Kansai Championship final match
Date 2019-05-06 Rating 2371.29
Round Color Result Opponent
1 White Loss JPN Hasegawa Kazuto 2525.33
2 Black Win JPN Hasegawa Kazuto 2525.33
14th All Japan Championship
Date 2019-03-31 Rating 2376.01
Round Color Result Opponent
1 White Win JPN Maruta Hiroki 2086.22
2 White Loss JPN Nakayama Tomoharu 2721.95
3 White Win JPN Chigira Makoto 2012.55
4 Black Loss JPN Okabe Hiroshi 2609.48
5 Black Win JPN Ishitani Shin-ichi 2323.56
6 Black Loss JPN Nakamura Shigeru 2897.48
50 Kyoto Classified Tournament
Date 2018-11-11 Rating 2391.02
Round Color Result Opponent
1 White Loss JPN Ishitani Shin-ichi 2340.01
2 Black Win JPN Ozawa Tetsushi 1934.09
3 Black Loss JPN Sakamoto Hirouji 2204.77
4 White Win JPN Fujita Maiko 2172.24
5 Black Win JPN Hayashi Shoichi 2078.64
56 Meijinsen Qualification Kansai area 2nd round
Date 2018-06-17 Rating 2416.47
Round Color Result Opponent
1 Black Loss JPN Tachi Masaya 2471.72
2 Black Loss JPN Kawamura Norihiko 2574.15
3 Black Loss JPN Hasegawa Kazuto 2510.24
12th Team World Championship
Date 2018-05-05 Rating 2427.36
Round Color Result Opponent
1 White Win EST Piik Sander 2166.88
3 White Win SWE Jonsson Peter 2212.99
4 White Loss RUS Kozhin Mikhail 2607.39
5 White Loss RUS Epifanov Dmitry 2561.32
7 Black Win RUS Semyonov Oleg 2318.98
9 White Loss CHN Cao Dong 2688.82
13 Kansai Championship final match
Date 2018-03-18 Rating 2439.52
Round Color Result Opponent
1 White Loss JPN Oosumi Yuuki 2607.61
2 Black Win JPN Oosumi Yuuki 2607.61
3 White Win JPN Oosumi Yuuki 2607.61
13 Kansai Championship 2nd round
Date 2018-02-18 Rating 2444.18
Round Color Result Opponent
1 White Win JPN Hasegawa Kazuto 2509.76
2 White Win JPN Tachi Masaya 2474.18
3 Black Win JPN Matsui Tsunehiro 2097.61
13th All Japan Championship
Date 2018-01-28 Rating 2445.71
Round Color Result Opponent
1 Black Draw JPN Ishitani Shin-ichi 2333.50
2 White Win JPN Miyamoto Syunju 2198.93
3 White Loss JPN Okabe Hiroshi 2622.38
4 White Win JPN Sato Kiyotomi 2357.37
5 White Loss JPN Kamiya Shunsuke 2707.06
6 White Loss JPN Nakayama Tomoharu 2743.85
49 Kyoto Classified Tournament
Date 2017-11-12 Rating 2452.40
Round Color Result Opponent
S1 White Win JPN Nishida Toshio 1999.12
S2 White Win JPN Hasegawa Kazuto 2517.08
S3 Black Loss JPN Kawamura Norihiko 2562.41
S4 White Win JPN Hata Masayuki 2114.08
S5 White Win JPN Ishitani Shin-ichi 2317.44
13 Kansai Championship 1st round
Date 2017-10-22 Rating 2453.05
Round Color Result Opponent
1 Black Win JPN Matsui Tsunehiro 2105.57
3 White Draw JPN Tachi Masaya 2467.47
4 Black Loss JPN Sakamoto Hirouji 2199.01
5 White Loss JPN Kawamura Norihiko 2560.97
55 Meijinsen Tournament
Date 2017-09-18 Rating 2456.68
Round Color Result Opponent
1 White Loss JPN Kamiya Shunsuke 2704.95
2 White Loss JPN Nakayama Tomoharu 2738.44
3 Black Loss JPN Okabe Hiroshi 2627.08
4 White Win JPN Tamada Yoichi 2415.21
5 Black Win JPN Maruyama Yasushi 2210.50
6 Black Win JPN Hasegawa Kazuto 2519.75
7 White Win JPN Matsuura Hiroshi 2257.31
8 White Win JPN Kawano Takahisa 2346.72
9 Black Loss JPN Sato Kiyotomi 2373.03
55 Meijinsen Qualification Kansai area 2nd round
Date 2017-06-18 Rating 2462.65
Round Color Result Opponent
1 White Win JPN Tachi Masaya 2460.72
2 White Win JPN Kawamura Norihiko 2543.99
3 White Win JPN Hasegawa Kazuto 2528.80
12th All Japan Championship
Date 2017-03-26 Rating 2457.46
Round Color Result Opponent
1 Black Draw JPN Maruta Koji 2085.80
2 White Loss JPN Ishitani Shin-ichi 2313.65
3 White Win JPN Kusajima Masato 2213.10
4 White Loss JPN Tamada Yoichi 2449.24
5 Black Draw JPN Miyamoto Syunju 2177.89
6 White Win JPN Ono Takayuki 2286.10
12 Kansai Championship 2nd round
Date 2017-02-19 Rating 2459.11
Round Color Result Opponent
1 White Win JPN Sakamoto Hirouji 2195.98
2 White Draw JPN Hasegawa Kazuto 2541.97
ex White Loss JPN Hasegawa Kazuto 2541.97
48 Kyoto Classified Tournament
Date 2016-11-13 Rating 2464.37
Round Color Result Opponent
SS1 Black Loss JPN Kawamura Norihiko 2536.64
SS2 White Win JPN Hata Masayuki 2120.66
SS4 Black Loss JPN Hasegawa Kazuto 2550.44
SS5 Black Draw JPN Okabe Hiroshi 2622.07
54 Meijinsen Tournament
Date 2016-09-19 Rating 2469.12
Round Color Result Opponent
1 Black Draw JPN Nakayama Tomoharu 2687.38
2 White Win JPN Maruyama Yasushi 2217.30
3 White Loss JPN Okabe Hiroshi 2626.94
4 Black Draw JPN Koyama Jun 2527.41
5 Black Win JPN Matsuura Hiroshi 2280.58
6 White Draw JPN Kamiya Shunsuke 2662.17
7 Black Win JPN Kuga Akio 2292.83
8 White Loss JPN Hasegawa Kazuto 2551.01
9 Black Win JPN Tanaka Toshiki 2375.62
54 Meijinsen Qualification Kansai area 2nd round
Date 2016-06-19 Rating 2470.12
Round Color Result Opponent
1 Black Win JPN Matsui Tsunehiro 2127.38
2 White Loss JPN Tanaka Toshiki 2381.23
3 White Win JPN Tachi Masaya 2409.15
54 Meijinsen Qualification Kansai area 1st round
Date 2016-05-15 Rating 2470.73
Round Color Result Opponent
1 Black Win JPN Sakamoto Hirouji 2203.06
2 White Win JPN Tachi Masaya 2404.34
3 Black Win JPN Matsui Tsunehiro 2130.21
4 White Win JPN Kawamura Norihiko 2529.00
Team World Championship
Date 2016-05-04 Rating 2469.87
Round Color Result Opponent
2 Black Loss EST Pajuste Renee 2538.82
3 Black Draw SWE Eriksson Bjorn 2193.90
4 Black Loss RUS Sushkov Vladimir 2756.91
5 White Win RUS Makarov Pavel 2506.99
6 White Win CHN Chen Xin 2328.99
7 Black Win TPE Feng Sheng-Yu 2005.83
9 White Win EST Lohmus Kristofer 2144.99
11 Kansai Championship Final match
Date 2016-04-03 Rating 2467.07
Round Color Result Opponent
1 Black Win JPN Oosumi Yuuki 2667.84
2 Black Loss JPN Oosumi Yuuki 2667.84
3 White Loss JPN Oosumi Yuuki 2667.84
11 Kansai Championship 2nd round
Date 2016-03-20 Rating 2465.51
Round Color Result Opponent
1 Black Win JPN Kashihara Akihiko 2262.33
2 Black Win JPN Tachi Masaya 2400.50
3 White Win JPN Sakamoto Hirouji 2201.23
11th All Japan Championship
Date 2016-01-11 Rating 2453.61
Round Color Result Opponent
1 White Win JPN Suzuki Rin 1880.93
2 White Loss JPN Nakamura Shigeru 2838.29
3 Black Win JPN Mano Yoshihisa 2274.81
4 White Loss JPN Nakamura Souta 2217.07
5 White Loss JPN Okabe Hiroshi 2629.51
6 White Loss JPN Ishitani Shin-ichi 2318.65
53 Meijinsen Tournament
Date 2015-09-22 Rating 2447.22
Round Color Result Opponent
1 Black Loss JPN Oosumi Yuuki 2687.70
2 White Win JPN Kawamura Norihiko 2539.01
3 Black Loss JPN Nakayama Tomoharu 2674.00
4 Black Loss JPN Matsuura Hiroshi 2314.92
5 White Draw JPN Tamada Yoichi 2486.50
6 White Draw JPN Ishitani Shin-ichi 2316.67
7 White Draw JPN Koyama Jun 2540.47
8 Black Win JPN Okabe Hiroshi 2632.63
9 Black Loss JPN Hasegawa Kazuto 2575.81
53 Meijinsen Qualification Kansai area 2nd round
Date 2015-06-21 Rating 2442.13
Round Color Result Opponent
1 Black Loss JPN Kawamura Norihiko 2551.24
2 White Loss JPN Hasegawa Kazuto 2571.55
3 White Win JPN Koiso Shigemasa 2094.63
53 Meijinsen Qualification Kansai area 1st round
Date 2015-05-17 Rating 2441.64
Round Color Result Opponent
1 White Draw JPN Tachi Masaya 2400.10
2 White Win JPN Sakamoto Hirouji 2203.28
3 White Win JPN Miyagawa Junzo 2160.22
4 Black Draw JPN Kawamura Norihiko 2553.39
10 Kansai Championship final match
Date 2015-03-15 Rating 2438.60
Round Color Result Opponent
1 White Loss JPN Oosumi Yuuki 2714.43
2 Black Loss JPN Oosumi Yuuki 2714.43
10 Kansai Championship 2nd round
Date 2015-02-15 Rating 2437.96
Round Color Result Opponent
1 Black Draw JPN Tachi Masaya 2396.14
2 Black Win JPN Sakamoto Hirouji 2209.31
3 Black Win JPN Miyagawa Junzo 2157.24
46 Kyoto Classified Tournament
Date 2014-11-09 Rating 2433.39
Round Color Result Opponent
S1 Black Win JPN Matsuo Toshiko 1851.79
S2 Black Win JPN Sakamoto Hirouji 2216.11
S3 White Draw JPN Okabe Hiroshi 2655.52
S4 White Loss JPN Oosumi Yuuki 2727.44
S5 White Loss JPN Kawamura Norihiko 2564.45
52 Meijinsen Tournament
Date 2014-09-15 Rating 2430.57
Round Color Result Opponent
1 Black Loss JPN Hasegawa Kazuto 2561.83
2 Black Loss JPN Matsuura Hiroshi 2294.72
3 White Loss JPN Oosumi Yuuki 2731.28
4 Black Loss JPN Nakayama Tomoharu 2629.65
5 White Loss JPN Sato Kiyotomi 2398.50
6 Black Draw JPN Okabe Hiroshi 2658.40
7 Black Loss JPN Tamada Yoichi 2474.92
8 Black Draw JPN Kashihara Akihiko 2261.80
9 Black Loss JPN Fukui Nobuhiro 2530.92
52 Meijinsen Qualification Kansai area 2nd round
Date 2014-06-15 Rating 2444.15
Round Color Result Opponent
1 White Win JPN Miyagawa Junzo 2136.30
2 Black Win JPN Sakamoto Hirouji 2222.17
3 White Loss JPN Kashihara Akihiko 2262.99
52 Meijinsen Qualification Kansai area 1st round
Date 2014-05-18 Rating 2449.07
Round Color Result Opponent
1 White Win JPN Koiso Shigemasa 2089.64
2 Black Win JPN Miyagawa Junzo 2135.72
3 White Win JPN Kashihara Akihiko 2261.38
4 Black Draw JPN Sakamoto Hirouji 2222.84
Team World Championship
Date 2014-05-03 Rating 2451.45
Round Color Result Opponent
1 Black Win JPN Ono Takayuki 2298.06
3 Black Draw EST Hõbemägi Martin 2538.69
4 Black Win RUS Epifanov Dmitry 2584.67
6 Black Win JPN Ono Takayuki 2298.06
8 Black Loss EST Hõbemägi Martin 2538.69
9 White Loss RUS Chingin Konstantin 2770.26
9th Kansai Championship final match
Date 2014-04-06 Rating 2454.00
Round Color Result Opponent
1 White Draw JPN Oosumi Yuuki 2732.32
2 White Win JPN Oosumi Yuuki 2732.32
3 Black Loss JPN Oosumi Yuuki 2732.32
4 Black Loss JPN Oosumi Yuuki 2732.32
9th Kansai Championship 2nd round
Date 2014-02-16 Rating 2455.59
Round Color Result Opponent
1 White Win JPN Sakamoto Hirouji 2221.57
3 Black Win JPN Hasegawa Kazuto 2543.23
9th All Japan Championship
Date 2014-01-26 Rating 2454.98
Round Color Result Opponent
1 White Win JPN Miyagawa Junzo 2129.20
2 White Draw JPN Oosumi Yuuki 2737.46
3 Black Win JPN Sato Kiyotomi 2381.28
4 White Win JPN Nakayama Tomoharu 2589.66
5 Black Loss JPN Okabe Hiroshi 2667.18
6 Black Win JPN Ono Takayuki 2297.80
45 Kyoto Classified Tournament
Date 2013-11-10 Rating 2443.55
Round Color Result Opponent
S1 Black Win JPN Kawano Takahisa 2297.10
S2 White Loss JPN Hasegawa Kazuto 2538.14
S3 White Win SWE Sandstrom Richard 2292.24
S4 Black Loss JPN Fukui Nobuhiro 2511.58
S5 White Win JPN Ishitani Shin-ichi 2341.22
9th Kansai Championship 1st round
Date 2013-10-27 Rating 2441.29
Round Color Result Opponent
1 Black Win JPN Sakamoto Hirouji 2222.86
2 Black Win JPN Watanabe Nobuo 1961.46
3 White Win JPN Kubo Izumi 2027.09
4 White Win JPN Kon Akira 1919.54
51 Meijinsen Qualification Kansai area 2nd round
Date 2013-06-16 Rating 2415.67
Round Color Result Opponent
1 White Draw JPN Hata Masayuki 2177.55
2 White Loss JPN Hasegawa Kazuto 2529.07
3 Black Win JPN Matsui Tsunehiro 2114.33
ex Black Loss JPN Hata Masayuki 2177.55
51 Meijinsen Qualification Kansai area 1st round
Date 2013-05-19 Rating 2412.96
Round Color Result Opponent
1 Black Loss JPN Hata Masayuki 2177.46
2 Black Win JPN Sakamoto Hirouji 2220.49
3 Black Win JPN Kubo Izumi 2018.37
4 Black Win JPN Matsui Tsunehiro 2114.54
5 Black Win JPN Koiso Shigemasa 2082.78
8th All Japan Championship
Date 2013-03-24 Rating 2408.24
Round Color Result Opponent
1 Black Win JPN Miyagawa Junzo 2142.50
2 White Win JPN Ishitani Shin-ichi 2303.40
3 Black Loss JPN Nakamura Shigeru 2784.47
4 White Loss JPN Okabe Hiroshi 2645.62
5 Black Draw JPN Kamiya Shunsuke 2455.39
6 Black Draw JPN Sato Kiyotomi 2358.68
8th Kansai Championship 2nd round
Date 2013-02-17 Rating 2404.72
Round Color Result Opponent
1 White Win JPN Takahashi Roi 2109.72
2 White Win JPN Miyagawa Junzo 2142.27
3 White Loss JPN Hasegawa Kazuto 2519.15
ex White Loss JPN Hasegawa Kazuto 2519.15
44 Kyoto Classified Tournament
Date 2012-11-11 Rating 2397.38
Round Color Result Opponent
S1 White Loss JPN Kudomi Takahiro 2334.20
S2 White Win JPN Tamura Kazumasa 2442.26
S3 White Draw JPN Ono Takayuki 2340.67
S4 White Loss JPN Ishitani Shin-ichi 2293.85
8th Kansai Championship 1st round
Date 2012-10-08 Rating 2396.73
Round Color Result Opponent
1 White Win JPN Takahashi Roi 2104.18
2 White Win JPN Miyagawa Junzo 2141.45
3 White Loss JPN Hasegawa Kazuto 2506.88
4 White Win JPN Koiso Shigemasa 2090.92
5 White Win JPN Kon Akira 1930.57
50th Meijinsen Tournament
Date 2012-09-17 Rating 2396.00
Round Color Result Opponent
1 White Win JPN Ono Takayuki 2345.03
2 White Loss JPN Nakayama Tomoharu 2542.70
3 Black Loss JPN Yamaguchi Yusui 2556.94
4 Black Loss JPN Nagasoe Hiroki 2447.21
5 White Loss JPN Fukui Nobuhiro 2457.63
6 Black Loss JPN Nakamura Shigeru 2793.08
7 White Loss JPN Okabe Hiroshi 2628.07
8 Black Win JPN Hasegawa Kazuto 2505.27
9 White Loss JPN Matsuura Hiroshi 2282.40
50 Meijinsen Qualification Kansai area 2nd round
Date 2012-06-17 Rating 2401.73
Round Color Result Opponent
1 White Win JPN Sakamoto Hirouji 2249.07
2 White Loss JPN Kise Katsumi 2465.64
3 Black Win JPN Hasegawa Kazuto 2499.39
7th Kansai Championship 2nd round
Date 2012-02-19 Rating 2404.54
Round Color Result Opponent
1 Black Win JPN Sakamoto Hirouji 2253.29
2 White Win JPN Hata Masayuki 2154.63
3 Black Loss JPN Kise Katsumi 2468.99
7th All Japan Championship
Date 2012-01-29 Rating 2404.91
Round Color Result Opponent
1 Black Win JPN Tada Ayako 2207.44
2 Black Win JPN Mitsumori Masao 2293.71
3 White Win JPN Sakamoto Hirouji 2255.66
4 White Draw JPN Nakayama Tomoharu 2519.62
5 White Loss JPN Nakamura Shigeru 2789.15
6 White Loss JPN Kudomi Takahiro 2338.16
43 Kyoto Classified Tournament
Date 2011-11-13 Rating 2404.27
Round Color Result Opponent
S1 White Loss JPN Sakamoto Hirouji 2261.90
S2 White Loss JPN Okumura Toyohiko 2269.42
S3 White Loss JPN Mano Yoshihisa 2179.46
S4 Black Win JPN Doi Manabu 2000.47
S5 White Win JPN Kubo Izumi 2027.44
49th Meijinsen Tournament
Date 2011-09-19 Rating 2411.87
Round Color Result Opponent
1 Black Win JPN Sakashita Shoichi 2076.51
2 White Win JPN Kashihara Akihiko 2191.82
3 Black Loss JPN Matsuura Hiroshi 2290.86
4 Black Draw JPN Nakayama Tomoharu 2498.46
5 Black Draw JPN Hasegawa Kazuto 2487.06
6 Black Win JPN Kubo Izumi 2032.78
7 Black Loss JPN Okabe Hiroshi 2619.81
8 White Loss JPN Yamaguchi Yusui 2555.24
9 White Win JPN Miyoshi Takeo 2092.19
World Championship BT
Date 2011-08-06 Rating 2419.22
Round Color Result Opponent
1 White Loss RUS Nikonov Konstantin 2546.94
2 White Win RUS Rachitskaya Viktoria 2186.57
3 Black Win EST Staub Rain 1851.24
4 White Win JPN Ono Takayuki 2325.15
5 White Loss EST Pajuste Renee 2393.10
6 Black Win EST Hõbemägi Martin 2332.14
7 Black Win RUS Karasyov Maxim 2547.99
8 White Win JPN Nakayama Tomoharu 2492.23
9 White Draw RUS Potapov Alexey 2525.09
49 Meijinsen Qualification Kansai area 2nd round
Date 2011-06-19 Rating 2421.71
Round Color Result Opponent
1 White Win JPN Kubo Izumi 2037.93
2 Black Draw JPN Kashihara Akihiko 2188.52
3 White Win JPN Kise Katsumi 2462.96
6th All Japan Championship
Date 2011-03-27 Rating 2423.77
Round Color Result Opponent
1 White Win JPN Miyoshi Takeo 2079.91
2 White Win JPN Kon Akira 1944.78
3 White Draw JPN Hasegawa Kazuto 2514.10
4 White Loss JPN Okabe Hiroshi 2609.94
5 White Loss JPN Tamada Yoichi 2424.73
6 White Win JPN Kawano Takahisa 2279.23
6th Kansai Championship final match
Date 2011-03-20 Rating 2424.02
Round Color Result Opponent
1 White Loss JPN Oosumi Yuuki 2652.78
2 White Loss JPN Oosumi Yuuki 2652.78
48th Meijinsen Tournament
Date 2010-09-20 Rating 2436.08
Round Color Result Opponent
1 White Win JPN Sakamoto Hirouji 2249.29
2 White Win JPN Tamada Yoichi 2409.01
3 Black Win JPN Matsuura Hiroshi 2275.19
4 White Draw JPN Okabe Hiroshi 2602.25
5 White Draw JPN Kawano Takahisa 2257.16
6 White Win JPN Ishitani Shin-ichi 2308.91
7 Black Loss JPN Yamaguchi Yusui 2502.50
8 White Win JPN Koiso Shigemasa 2092.38
9 White Loss JPN Oosumi Yuuki 2620.30
Team World Championship
Date 2010-05-05 Rating 2437.40
Round Color Result Opponent
3 White Win RUS Artemyev Sergey 2528.11
4 Black Loss EST Purk Andry 2569.78
5 Black Win EST Väljataga Paul 2324.01
7 White Win AZE Eibatov Nizami 2262.60
10 White Loss RUS Sumarokov Evgeny 2456.21
5th Kansai Championship final match
Date 2010-03-28 Rating 2436.51
Round Color Result Opponent
1 White Win JPN Oosumi Yuuki 2579.69
2 White Win JPN Oosumi Yuuki 2579.69
5th All Japan Championship
Date 2010-03-21 Rating 2435.62
Round Color Result Opponent
1 White Win JPN Tadokoro Hosai 1868.02
2 Black Loss JPN Nakamura Shigeru 2762.44
3 Black Win JPN Maruta Hiroki 2030.94
4 White Win KOR Kim Chang-Su 2004.33
5 Black Loss JPN Yamaguchi Yusui 2490.45
6 White Loss JPN Shimoyama Takuma 2188.55
5th Kansai Championship 3rd round
Date 2010-02-14 Rating 2434.20
Round Color Result Opponent
1 Black Win JPN Hata Masayuki 2095.28
2 White Win JPN Hasegawa Kazuto 2580.40
3 White Win JPN Sagara Takashi 2384.87
13th Mikami Cup Tournament
Date 2010-01-31 Rating 2432.32
Round Color Result Opponent
S1 Black Win JPN Suzuki Junichiro 1867.80
S2 White Loss JPN Nakamura Shigeru 2763.92
S3 Black Loss JPN Kataoka Mitsuaki 2153.25
S4 White Draw JPN Nagao Noriaki 2331.37
S5 Black Win JPN Ono Takayuki 2309.44
5th Kansai Championship 2nd round
Date 2009-11-15 Rating 2426.23
Round Color Result Opponent
1 Black Loss JPN Koiso Shigemasa 2097.54
2 Black Win JPN Sakamoto Hirouji 2216.68
3 Black Win JPN Kon Akira 1922.00
4 Black Win JPN Miyagawa Junzo 2131.93
41 Kyoto Classified Tournament
Date 2009-11-08 Rating 2425.90
Round Color Result Opponent
S1 Black Loss JPN Hasegawa Kazuto 2589.25
S2 White Win JPN Sakamoto Hirouji 2215.97
S3 White Win JPN Kudomi Takahiro 2297.14
S4 White Win JPN Okabe Hiroshi 2575.86
S5 Black Loss JPN Okumura Toyohiko 2281.60
47th Meijinsen tournament
Date 2009-09-22 Rating 2422.72
Round Color Result Opponent
1 White Win JPN Tamura Kazumasa 2422.74
2 White Win JPN Yamaguchi Yusui 2476.91
3 Black Loss JPN Kawamura Norihiko 2546.12
4 Black Win JPN Kataoka Mitsuaki 2144.18
5 White Loss JPN Oosumi Yuuki 2561.08
6 White Draw JPN Ishitani Shin-ichi 2286.36
7 White Win JPN Matsuura Hiroshi 2241.30
8 White Loss JPN Okabe Hiroshi 2571.60
9 White Win JPN Sakamoto Hirouji 2210.20
The 6th Shanghai Renju Meijin Invitation Tournament
Date 2009-05-03 Rating 2406.70
Round Color Result Opponent
1 White Draw JPN Oosumi Yuuki 2554.75
2 Black Loss CHN Gu Wei 2448.57
3 Black Loss CHN Li Yi 2600.94
4 Black Loss CHN Yu Manjiang 2438.39
5 Black Win CHN Xu Bin 2135.73
6 White Win JPN Mitsumori Masao 2273.16
7 White Draw JPN Isobe Taizan 2331.41
4th All Japan Championship
Date 2009-03-21 Rating 2403.62
Round Color Result Opponent
1 Black Win JPN Iwano Fumio 2136.72
2 White Loss JPN Tamura Kazumasa 2419.26
3 Black Loss JPN Tamada Yoichi 2255.24
4 Black Win JPN Tanizaki Ryusuke 2035.43
5 White Win JPN Sakamoto Hirouji 2200.28
6 White Draw JPN Ishitani Shin-ichi 2287.72
4 Kansai Championship 3rd round
Date 2009-02-15 Rating 2403.26
Round Color Result Opponent
1 White Loss JPN Tamura Kazumasa 2412.78
2 Black Loss JPN Oosumi Yuuki 2546.44
3 Black Loss JPN Takashima Junya 2420.70
4th Kansai Championship, 2nd round
Date 2008-11-16 Rating 2410.85
Round Color Result Opponent
1 Black Win JPN Sakamoto Hirouji 2191.80
2 Black Win JPN Miyagawa Junzo 2147.60
3 White Draw JPN Tamura Kazumasa 2397.34
4 White Loss JPN Takashima Junya 2419.77
46th Meijinsen Tournament
Date 2008-09-15 Rating 2416.51
Round Color Result Opponent
1 White Win JPN Matsuura Hiroshi 2199.87
2 Black Win JPN Oosumi Yuuki 2506.48
3 Black Loss JPN Okabe Hiroshi 2554.31
4 Black Win JPN Yamaguchi Yusui 2476.44
5 Black Win JPN Kataoka Mitsuaki 2113.14
6 Black Win JPN Hata Masayuki 2181.01
7 White Loss JPN Sato Kiyotomi 2302.86
8 Black Draw JPN Ishitani Shin-ichi 2275.17
9 Black Loss JPN Kawamura Norihiko 2559.64
46th Meijinsen Qualification Kansai area 2nd round
Date 2008-06-15 Rating 2422.72
Round Color Result Opponent
1 Black Draw JPN Miyagawa Junzo 2156.69
2 Black Win JPN Sakamoto Hirouji 2194.58
3 White Loss JPN Hata Masayuki 2192.82
Team World Championship
Date 2008-05-02 Rating 2428.63
Round Color Result Opponent
1 Black Draw CZE Laube Pavel 2369.02
2 White Win RUS Artemyev Sergey 2538.40
3 Black Win CHN Cao Dong 2582.05
4 White Loss SWE Karlsson Stefan 2493.08
5 White Loss RUS Sushkov Vladimir 2654.12
7 Black Win EST Taimla Tunnet 2684.01
8 White Draw FIN Saarenpää Samuli 2316.77
9 Black Win UKR Piddubny Konstantin 2158.30
3rd Kansai Championship 3rd round
Date 2008-01-13 Rating 2431.28
Round Color Result Opponent
1 White Win JPN Takagawa Teiji 2162.13
2 White Win JPN Tamura Kazumasa 2346.45
3 White Loss JPN Oosumi Yuuki 2475.53
The 45th Meijin-sen Tournament
Date 2007-09-17 Rating 2433.09
Round Color Result Opponent
1 White Loss JPN Isobe Taizan 2317.80
2 Black Loss JPN Miyoshi Takeo 2179.61
3 Black Loss JPN Okabe Hiroshi 2502.85
4 White Win JPN Matsuura Hiroshi 2177.29
5 White Win JPN Kawamura Norihiko 2537.45
6 Black Win JPN Sato Kiyotomi 2254.52
7 Black Win JPN Hiwatashi Kikuma 1807.94
8 White Draw JPN Oosumi Yuuki 2454.85
9 White Win JPN Yamaguchi Yusui 2530.25
World Championship AT
Date 2007-08-15 Rating 2433.80
Round Color Result Opponent
1 White Draw EST Oll Aivo 2556.47
2 Black Loss JPN Okabe Hiroshi 2496.96
3 Black Loss JPN Yamaguchi Yusui 2532.71
4 White Loss CHN Wu Di 2603.86
5 Black Loss EST Taimla Tunnet 2654.40
6 Black Win RUS Kozhin Mikhail 2493.74
7 Black Loss RUS Sushkov Vladimir 2647.88
8 White Loss RUS Savrasova Yulia 2564.99
9 White Win EST Purk Andry 2525.70
10 White Draw RUS Chingin Konstantin 2680.16
11 White Loss SWE Karlsson Stefan 2497.47
World Championship QT
Date 2007-08-08 Rating 2434.23
Round Color Result Opponent
1 Black Win JPN Ishitani Shin-ichi 2253.10
2 White Win ARM Poghosyan Albert 2292.51
3 White Draw JPN Okabe Hiroshi 2496.23
4 Black Win SWE Jonsson Peter 2251.70
5 Black Win CHN Qiu Yunfei 2393.65
6 White Win TPE Lin Huang-Yu 2439.02
7 White Win SWE Andersson Tord 2259.86
45th Meijinsen Qualification Kansai area final round
Date 2007-06-17 Rating 2429.16
Round Color Result Opponent
1 Black Win JPN Hata Masayuki 2188.96
2 Black Loss JPN Sakamoto Hirouji 2192.06
3 Black Win JPN Oosumi Yuuki 2428.26
2nd All Japan Championship (WC Qualification)
Date 2007-03-25 Rating 2421.59
Round Color Result Opponent
1 Black Loss JPN Ono Takayuki 2288.94
2 Black Win JPN Tanizaki Ryusuke 2044.41
4 White Loss JPN Isobe Taizan 2308.26
2nd Kansai Championship, Final Match
Date 2007-03-18 Rating 2421.60
Round Color Result Opponent
1 White Loss JPN Hasegawa Kazuto 2646.31
2 Black Loss JPN Hasegawa Kazuto 2646.31
2nd Kansai Championship 3rd round
Date 2007-01-14 Rating 2423.72
Round Color Result Opponent
1 Black Win JPN Oosumi Yuuki 2380.90
2 White Win JPN Sagara Takashi 2389.12
3 Black Draw JPN Takashima Junya 2387.77
2nd Kansai Championship 2nd round
Date 2006-10-15 Rating 2421.13
Round Color Result Opponent
1 Black Loss JPN Oosumi Yuuki 2357.27
2 Black Win JPN Doi Manabu 2004.00
3 Black Win JPN Ozawa Tetsushi 2029.81
4 Black Win JPN Takagawa Teiji 2198.19
The 44th Meijin-sen Tournament
Date 2006-09-18 Rating 2420.76
Round Color Result Opponent
1 White Draw JPN Nagao Noriaki 2223.16
2 White Loss JPN Okabe Hiroshi 2463.12
3 Black Loss JPN Kawamura Norihiko 2564.44
4 White Loss JPN Yamaguchi Yusui 2517.10
5 Black Win JPN Ishitani Shin-ichi 2236.51
6 Black Win JPN Oosumi Yuuki 2349.10
7 Black Win JPN Fujii Naoki 1975.91
8 White Win JPN Matsuura Hiroshi 2179.37
9 White Win JPN Sato Kiyotomi 2273.84
Asian Championship
Date 2006-08-15 Rating 2420.63
Round Color Result Opponent
1 White Draw JPN Kashihara Akihiko 2217.01
2 Black Win KOR Lee Jo-Sub 2282.82
3 Black Win JPN Oosumi Yuuki 2340.84
4 White Draw JPN Yamaguchi Yusui 2514.56
5 Black Win KOR Park Jeong Ho 2306.72
6 Black Loss KOR Kim Chang-Hoon 2448.04
7 Black Win JPN Ishitani Shin-ichi 2236.97
8 White Loss JPN Okabe Hiroshi 2460.81
Meijin-sen Qual, Kansai-Hokuriku area final round
Date 2006-06-18 Rating 2419.29
Round Color Result Opponent
1 Black Win JPN Oosumi Yuuki 2329.57
2 White Win JPN Takashima Junya 2372.74
3 White Win JPN Hata Masayuki 2197.11
Meijin-sen Qual, Kansai area 1st round
Date 2006-05-14 Rating 2415.82
Round Color Result Opponent
1 White Win JPN Okuda Shingo 1856.96
2 White Win JPN Hata Masayuki 2197.56
3 Black Win JPN Takagawa Teiji 2207.64
4 Black Win JPN Matsui Tsunehiro 2120.36
Team World Championship
Date 2006-05-05 Rating 2414.50
Round Color Result Opponent
1 White Loss FIN Pellikka Marko 2220.81
2 White Loss SWE Andersson Tord 2246.09
3 White Draw EST Oll Aivo 2539.96
4 Black Win RUS Skuridin Alexey 2323.15
5 Black Win CHN Ge Lingfeng 2298.75
6 White Loss RUS Savrasova Yulia 2536.30
7 White Win EST Sulane Sander 2013.24
F1 White Loss SWE Gaulitz Joachim 2363.79
F2 White Win SWE Andersson Tord 2246.09
1st Kansai Championship 2nd round
Date 2005-10-16 Rating 2401.84
Round Color Result Opponent
1 Black Win JPN Adachi Yasuhiro 1755.32
2 Black Win JPN Hata Masayuki 2184.81
3 White Draw JPN Takagawa Teiji 2220.08
4 Black Loss JPN Hasegawa Kazuto 2610.04
World Championship QT
Date 2005-07-31 Rating 2398.28
Round Color Result Opponent
1 Black Win JPN Oosumi Yuuki 2294.05
4 Black Win RUS Kozhin Mikhail 2470.21
5 Black Draw JPN Yamaguchi Yusui 2477.70
6 White Loss RUS Sushkov Vladimir 2588.88
7 White Win EST Ilu Timo 2410.75
43rd Meijinsen Qualification: Kansai area 1st round
Date 2005-05-08 Rating 2386.06
Round Color Result Opponent
1 White Win JPN Matsui Tsunehiro 2126.11
2 Black Win JPN Iwata Akihisa 2139.59
3 White Loss JPN Takashima Junya 2333.27
4 Black Loss JPN Tamura Kazumasa 2308.09
The 42nd Meijin-sen Tournament
Date 2004-09-20 Rating 2366.41
Round Color Result Opponent
1 White Win JPN Okabe Hiroshi 2398.39
2 White Loss JPN Kawamura Norihiko 2591.52
3 Black Win JPN Sakashita Shoichi 2111.40
4 White Loss JPN Ishitani Shin-ichi 2255.41
5 White Loss JPN Hasegawa Kazuto 2569.03
6 White Win JPN Saito Koji 2071.08
7 Black Loss JPN Sakamoto Hirouji 2142.97
8 White Loss JPN Matsuura Hiroshi 2241.00
9 White Win JPN Takagawa Teiji 2230.56
Team World Championship
Date 2004-05-05 Rating 2368.58
Round Color Result Opponent
1 Black Loss SWE Karlsson Stefan 2423.29
2 White Win BLR Degtyar Felix 1975.54
3 Black Loss EST Meritee Ando 2721.30
4 White Win UZB Khramov Andrey 2168.38
6 Black Win UKR Piddubny Konstantin 2079.79
7 Black Loss RUS Salnikov Pavel 2458.30
8 Black Loss RUS Kareyev Vladislav 2488.09
9 Black Draw RUS Sushkov Vladimir 2568.97
41st Meijin-sen Tournament
Date 2003-09-15 Rating 2380.75
Round Color Result Opponent
1 White Win JPN Matsuura Hiroshi 2248.11
2 White Win JPN Miyagawa Junzo 2079.98
3 White Win JPN Takashima Junya 2195.32
4 White Loss JPN Kuga Akio 2261.26
5 White Loss JPN Hasegawa Kazuto 2532.21
6 Black Win JPN Kudomi Takahiro 2278.63
7 White Win JPN Ishitani Shin-ichi 2256.22
8 White Win JPN Isobe Taizan 2207.89
9 White Win JPN Okabe Hiroshi 2386.42
World Championship AT
Date 2003-08-08 Rating 2379.28
Round Color Result Opponent
1 White Draw JPN Yamaguchi Yusui 2474.74
2 White Loss EST Taimla Tunnet 2566.03
3 White Draw JPN Okabe Hiroshi 2385.97
4 White Loss RUS Chingin Konstantin 2595.86
5 White Loss EST Meritee Ando 2707.15
6 White Loss RUS Sinyov Igor 2477.25
7 White Draw SWE Karlsson Stefan 2422.55
8 White Win SWE Gaulitz Joachim 2309.80
9 White Win SWE Andersson Tord 2262.35
10 Black Win SWE Carlsson Martin 2281.35
11 Black Loss RUS Sushkov Vladimir 2573.26
World Championship QT
Date 2003-07-31 Rating 2378.92
Round Color Result Opponent
1 Black Win JPN Mitsumori Masao 2235.66
2 White Draw RUS Karasyov Maxim 2394.37
3 White Draw JPN Yamaguchi Yusui 2475.54
4 White Win TPE Chang Yi-Feng 2282.28
5 White Win JPN Ishitani Shin-ichi 2256.15
6 White Win AZE Eibatov Nizami 2276.99
7 White Draw RUS Sushkov Vladimir 2572.76
40th Meijin-sen Tournament
Date 2002-09-16 Rating 2322.73
Round Color Result Opponent
1 Black Loss JPN Takagawa Teiji 2243.68
2 Black Loss JPN Ishitani Shin-ichi 2258.39
3 Black Win JPN Okabe Hiroshi 2334.00
4 White Draw JPN Isobe Taizan 2221.49
5 White Loss JPN Hasegawa Kazuto 2515.07
6 White Loss JPN Yamaguchi Yusui 2488.17
7 Black Win JPN Nishimura Toshio 2219.79
8 Black Win JPN Kudomi Takahiro 2290.18
9 Black Win JPN Matsuura Hiroshi 2189.57
40th Meijinsen Qualification: Kansai-Hokuriku 2nd Round
Date 2002-06-16 Rating 2308.04
Round Color Result Opponent
1 White Win JPN Miyagawa Sou 1864.35
2 Black Win JPN Sakamoto Hirouji 2137.46
3 White Win JPN Ikeshima Wakio 1873.61
4 Black Draw JPN Miyagawa Junzo 2074.23
5 Black Draw JPN Takagawa Teiji 2243.18
Team World Championship
Date 2002-05-03 Rating 2300.91
Round Color Result Opponent
1 Black Loss EST Taimla Tunnet 2441.11
2 Black Loss RUS Dvoeglazov Vladimir 2249.61
3 Black Win UKR Drozd Olexandr 2143.23
4 White Loss SWE Carlsson Martin 2213.25
5 Black Loss SWE Gardstrom Petter 2377.98
6 White Win KOR Lee Yun-Sub 1968.27
7 White Loss RUS Semyonov Vladimir 2293.88
8 White Loss SWE Carlsson Martin 2213.25
9 White Win SWE Carlsson Martin 2213.25
The 39th Meijin-sen Tournament
Date 2001-09-24 Rating 2301.78
Round Color Result Opponent
1 White Loss JPN Kudomi Takahiro 2294.43
2 Black Win JPN Hayakawa Yoshimi 2353.93
3 White Win JPN Takagawa Teiji 2239.94
4 White Win JPN Maruyama Yasushi 2108.14
5 White Draw JPN Yamaguchi Yusui 2456.51
6 White Loss JPN Nishimura Toshio 2243.12
7 White Win JPN Matsuura Hiroshi 2171.95
8 White Loss JPN Nara Hideki 2456.43
9 White Loss JPN Hasegawa Kazuto 2499.28
World Championship BT
Date 2001-08-12 Rating 2301.52
Round Color Result Opponent
1 White Win JPN Tatsutomi Hiroyuki 2072.92
2 Black Win RUS Chernov Sergey 2203.25
3 Black Win JPN Ono Takayuki 2158.97
4 White Loss JPN Hasegawa Kazuto 2498.44
5 White Win UZB Khramov Andrey 2138.16
6 White Win JPN Sakamoto Hirouji 2152.65
7 White Loss JPN Kusajima Masato 2247.50
8 White Win JPN Kudomi Takahiro 2291.95
32-nd Kyoto Classified - Special class
Date 2000-11-12 Rating 2277.08
Round Color Result Opponent
1 White Loss JPN Nara Hideki 2478.88
2 Black Win JPN Sakamoto Hirouji 2156.96
3 Black Loss JPN Hasegawa Kazuto 2497.99
4 Black Win JPN Koiso Shigemasa 1966.52
38th Meijinsen Tournament
Date 2000-10-01 Rating 2273.26
Round Color Result Opponent
1 White Win JPN Fujinami Hisao 2120.11
2 Black Loss JPN Kudomi Takahiro 2272.64
3 White Loss JPN Hasegawa Kazuto 2497.73
4 White Loss JPN Arai Yutaka 2065.88
5 White Win JPN Nishizono Norio 2299.10
6 Black Draw JPN Hayakawa Yoshimi 2368.09
7 White Loss JPN Maruyama Yasushi 2112.87
8 Black Loss JPN Nara Hideki 2481.16
9 Black Win JPN Kusajima Masato 2221.26
Meijinsen Qualification: Kansai-Hokuriku 2nd Round
Date 2000-06-19 Rating 2271.85
Round Color Result Opponent
1 White Win JPN Sakamoto Hirouji 2162.88
2 White Loss JPN Hayakawa Yoshimi 2381.48
3 White Win JPN Takehara Kenji 1771.67
38th Meijinsen Qualification: Kansai area 1st Round
Date 2000-05-21 Rating 2271.34
Round Color Result Opponent
1 White Win JPN Tatsutomi Hiroyuki 2053.96
2 White Loss JPN Hayakawa Yoshimi 2384.46
3 Black Win JPN Matsui Tsunehiro 2162.47
4 White Win JPN Iwata Akihisa 2144.39