JPN Iio Yoshihiro

Place: Kobe, Japan

Rating: 2318.68, Rank: 148

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

Top rating: 2472.85 (2016-05-15)

Games: 563, Wins: 283, Draws: 68, Losses: 212

Gy1: 20, Gy2: 38, Gy5: 128

58 Meijinsen Qualification Kansai area 1st round
Date 2020-06-21 Rating 2318.68
Round Color Result Opponent
1 Black Win JPN Hata Masayuki 2074.49
2 Black Loss JPN Sakamoto Hirouji 2198.03
3 White Loss JPN Makino Mitsunori 2324.26
4 White Win JPN Kito Shinichi 2150.51
5 White Loss JPN Tachi Masaya 2411.14
15 Kansai Championship 2nd round
Date 2020-02-16 Rating 2328.58
Round Color Result Opponent
1 White Win JPN Kito Shinichi 2144.25
2 White Win JPN Hayashi Shoichi 2116.59
3 Black Loss JPN Makino Mitsunori 2291.29
ex Black Loss JPN Makino Mitsunori 2291.29
15th All Japan Championship
Date 2020-01-19 Rating 2332.07
Round Color Result Opponent
1 White Win JPN Hata Masayuki 2087.67
2 Black Loss JPN Nakayama Tomoharu 2745.06
3 White Loss JPN Makino Mitsunori 2282.56
4 Black Win JPN Fujita Maiko 2274.80
5 White Win JPN Ishitani Shin-ichi 2315.74
6 White Loss JPN Okabe Hiroshi 2625.89
51 Kyoto Classified Tournament
Date 2019-11-04 Rating 2339.97
Round Color Result Opponent
S1 White Win JPN Ozawa Tetsushi 1916.67
S2 Black Loss JPN Tanaka Toshiki 2426.22
S3 Black Win JPN Nishida Toshio 2000.00
S4 White Loss JPN Hasegawa Kazuto 2520.33
S5 White Loss JPN Kawamura Norihiko 2585.59
14 Kansai Championship final match R3
Date 2019-08-19 Rating 2351.59
Round Color Result Opponent
3 Black Loss JPN Hasegawa Kazuto 2519.25
57 Meijinsen Qualification Kansai area 1st round
Date 2019-05-19 Rating 2367.35
Round Color Result Opponent
1 White Win JPN Tanaka Toshiki 2421.79
2 White Loss JPN Hasegawa Kazuto 2512.11
3 White Loss JPN Tachi Masaya 2437.84
4 Black Win JPN Matsui Tsunehiro 2097.44
14 Kansai Championship final match
Date 2019-05-06 Rating 2369.53
Round Color Result Opponent
1 White Loss JPN Hasegawa Kazuto 2511.09
2 Black Win JPN Hasegawa Kazuto 2511.09
14th All Japan Championship
Date 2019-03-31 Rating 2374.54
Round Color Result Opponent
1 White Win JPN Maruta Hiroki 2105.11
2 White Loss JPN Nakayama Tomoharu 2722.77
3 White Win JPN Chigira Makoto 2015.07
4 Black Loss JPN Okabe Hiroshi 2607.00
5 Black Win JPN Ishitani Shin-ichi 2327.07
6 Black Loss JPN Nakamura Shigeru 2896.44
50 Kyoto Classified Tournament
Date 2018-11-11 Rating 2390.41
Round Color Result Opponent
1 White Loss JPN Ishitani Shin-ichi 2342.82
2 Black Win JPN Ozawa Tetsushi 1938.92
3 Black Loss JPN Sakamoto Hirouji 2212.04
4 White Win JPN Fujita Maiko 2187.78
5 Black Win JPN Hayashi Shoichi 2092.11
56 Meijinsen Qualification Kansai area 2nd round
Date 2018-06-17 Rating 2416.31
Round Color Result Opponent
1 Black Loss JPN Tachi Masaya 2459.91
2 Black Loss JPN Kawamura Norihiko 2571.22
3 Black Loss JPN Hasegawa Kazuto 2503.38
12th Team World Championship
Date 2018-05-05 Rating 2427.42
Round Color Result Opponent
1 White Win EST Piik Sander 2177.58
3 White Win SWE Jonsson Peter 2223.29
4 White Loss RUS Kozhin Mikhail 2613.91
5 White Loss RUS Epifanov Dmitry 2567.92
7 Black Win RUS Semyonov Oleg 2319.18
9 White Loss CHN Cao Dong 2692.72
13 Kansai Championship final match
Date 2018-03-18 Rating 2439.70
Round Color Result Opponent
1 White Loss JPN Oosumi Yuuki 2609.26
2 Black Win JPN Oosumi Yuuki 2609.26
3 White Win JPN Oosumi Yuuki 2609.26
13 Kansai Championship 2nd round
Date 2018-02-18 Rating 2444.40
Round Color Result Opponent
1 White Win JPN Hasegawa Kazuto 2504.69
2 White Win JPN Tachi Masaya 2466.27
3 Black Win JPN Matsui Tsunehiro 2101.56
13th All Japan Championship
Date 2018-01-28 Rating 2446.00
Round Color Result Opponent
1 Black Draw JPN Ishitani Shin-ichi 2335.57
2 White Win JPN Miyamoto Syunju 2196.66
3 White Loss JPN Okabe Hiroshi 2623.14
4 White Win JPN Sato Kiyotomi 2359.40
5 White Loss JPN Kamiya Shunsuke 2705.59
6 White Loss JPN Nakayama Tomoharu 2745.87
49 Kyoto Classified Tournament
Date 2017-11-12 Rating 2452.92
Round Color Result Opponent
S1 White Win JPN Nishida Toshio 2003.06
S2 White Win JPN Hasegawa Kazuto 2513.43
S3 Black Loss JPN Kawamura Norihiko 2560.77
S4 White Win JPN Hata Masayuki 2120.47
S5 White Win JPN Ishitani Shin-ichi 2319.45
13 Kansai Championship 1st round
Date 2017-10-22 Rating 2453.63
Round Color Result Opponent
1 Black Win JPN Matsui Tsunehiro 2109.35
3 White Draw JPN Tachi Masaya 2462.81
4 Black Loss JPN Sakamoto Hirouji 2204.09
5 White Loss JPN Kawamura Norihiko 2559.45
55 Meijinsen Tournament
Date 2017-09-18 Rating 2457.38
Round Color Result Opponent
1 White Loss JPN Kamiya Shunsuke 2704.79
2 White Loss JPN Nakayama Tomoharu 2740.73
3 Black Loss JPN Okabe Hiroshi 2628.52
4 White Win JPN Tamada Yoichi 2429.62
5 Black Win JPN Maruyama Yasushi 2214.67
6 Black Win JPN Hasegawa Kazuto 2516.81
7 White Win JPN Matsuura Hiroshi 2259.71
8 White Win JPN Kawano Takahisa 2340.87
9 Black Loss JPN Sato Kiyotomi 2375.23
55 Meijinsen Qualification Kansai area 2nd round
Date 2017-06-18 Rating 2463.57
Round Color Result Opponent
1 White Win JPN Tachi Masaya 2458.58
2 White Win JPN Kawamura Norihiko 2543.11
3 White Win JPN Hasegawa Kazuto 2526.66
12th All Japan Championship
Date 2017-03-26 Rating 2458.65
Round Color Result Opponent
1 Black Draw JPN Maruta Koji 2086.38
2 White Loss JPN Ishitani Shin-ichi 2315.91
3 White Win JPN Kusajima Masato 2212.48
4 White Loss JPN Tamada Yoichi 2460.11
5 Black Draw JPN Miyamoto Syunju 2176.98
6 White Win JPN Ono Takayuki 2289.33
12 Kansai Championship 2nd round
Date 2017-02-19 Rating 2460.38
Round Color Result Opponent
1 White Win JPN Sakamoto Hirouji 2200.24
2 White Draw JPN Hasegawa Kazuto 2540.78
ex White Loss JPN Hasegawa Kazuto 2540.78
48 Kyoto Classified Tournament
Date 2016-11-13 Rating 2465.88
Round Color Result Opponent
SS1 Black Loss JPN Kawamura Norihiko 2536.82
SS2 White Win JPN Hata Masayuki 2125.62
SS4 Black Loss JPN Hasegawa Kazuto 2549.89
SS5 Black Draw JPN Okabe Hiroshi 2624.09
54 Meijinsen Tournament
Date 2016-09-19 Rating 2470.77
Round Color Result Opponent
1 Black Draw JPN Nakayama Tomoharu 2689.88
2 White Win JPN Maruyama Yasushi 2219.87
3 White Loss JPN Okabe Hiroshi 2629.06
4 Black Draw JPN Koyama Jun 2529.90
5 Black Win JPN Matsuura Hiroshi 2282.60
6 White Draw JPN Kamiya Shunsuke 2663.71
7 Black Win JPN Kuga Akio 2281.71
8 White Loss JPN Hasegawa Kazuto 2550.77
9 Black Win JPN Tanaka Toshiki 2376.60
54 Meijinsen Qualification Kansai area 2nd round
Date 2016-06-19 Rating 2472.10
Round Color Result Opponent
1 Black Win JPN Matsui Tsunehiro 2130.66
2 White Loss JPN Tanaka Toshiki 2382.07
3 White Win JPN Tachi Masaya 2410.53
54 Meijinsen Qualification Kansai area 1st round
Date 2016-05-15 Rating 2472.85
Round Color Result Opponent
1 Black Win JPN Sakamoto Hirouji 2206.82
2 White Win JPN Tachi Masaya 2406.03
3 Black Win JPN Matsui Tsunehiro 2133.47
4 White Win JPN Kawamura Norihiko 2529.99
Team World Championship
Date 2016-05-04 Rating 2472.03
Round Color Result Opponent
2 Black Loss EST Pajuste Renee 2544.75
3 Black Draw SWE Eriksson Bjorn 2202.35
4 Black Loss RUS Sushkov Vladimir 2762.08
5 White Win RUS Makarov Pavel 2513.89
6 White Win CHN Chen Xin 2332.91
7 Black Win TPE Feng Sheng-Yu 2009.79
9 White Win EST Lohmus Kristofer 2154.72
11 Kansai Championship Final match
Date 2016-04-03 Rating 2469.28
Round Color Result Opponent
1 Black Win JPN Oosumi Yuuki 2670.09
2 Black Loss JPN Oosumi Yuuki 2670.09
3 White Loss JPN Oosumi Yuuki 2670.09
11 Kansai Championship 2nd round
Date 2016-03-20 Rating 2467.75
Round Color Result Opponent
1 Black Win JPN Kashihara Akihiko 2265.62
2 Black Win JPN Tachi Masaya 2402.51
3 White Win JPN Sakamoto Hirouji 2204.91
11th All Japan Championship
Date 2016-01-11 Rating 2455.95
Round Color Result Opponent
1 White Win JPN Suzuki Rin 1883.18
2 White Loss JPN Nakamura Shigeru 2840.61
3 Black Win JPN Mano Yoshihisa 2278.90
4 White Loss JPN Nakamura Souta 2219.64
5 White Loss JPN Okabe Hiroshi 2632.23
6 White Loss JPN Ishitani Shin-ichi 2321.81
53 Meijinsen Tournament
Date 2015-09-22 Rating 2449.71
Round Color Result Opponent
1 Black Loss JPN Oosumi Yuuki 2690.20
2 White Win JPN Kawamura Norihiko 2541.00
3 Black Loss JPN Nakayama Tomoharu 2677.10
4 Black Loss JPN Matsuura Hiroshi 2317.18
5 White Draw JPN Tamada Yoichi 2491.81
6 White Draw JPN Ishitani Shin-ichi 2320.02
7 White Draw JPN Koyama Jun 2543.55
8 Black Win JPN Okabe Hiroshi 2635.56
9 Black Loss JPN Hasegawa Kazuto 2577.20
53 Meijinsen Qualification Kansai area 2nd round
Date 2015-06-21 Rating 2444.71
Round Color Result Opponent
1 Black Loss JPN Kawamura Norihiko 2553.54
2 White Loss JPN Hasegawa Kazuto 2573.13
3 White Win JPN Koiso Shigemasa 2098.44
53 Meijinsen Qualification Kansai area 1st round
Date 2015-05-17 Rating 2444.26
Round Color Result Opponent
1 White Draw JPN Tachi Masaya 2403.11
2 White Win JPN Sakamoto Hirouji 2206.67
3 White Win JPN Miyagawa Junzo 2163.93
4 Black Draw JPN Kawamura Norihiko 2555.81
10 Kansai Championship final match
Date 2015-03-15 Rating 2441.28
Round Color Result Opponent
1 White Loss JPN Oosumi Yuuki 2717.14
2 Black Loss JPN Oosumi Yuuki 2717.14
10 Kansai Championship 2nd round
Date 2015-02-15 Rating 2440.66
Round Color Result Opponent
1 Black Draw JPN Tachi Masaya 2399.10
2 Black Win JPN Sakamoto Hirouji 2212.63
3 Black Win JPN Miyagawa Junzo 2160.79
46 Kyoto Classified Tournament
Date 2014-11-09 Rating 2436.17
Round Color Result Opponent
S1 Black Win JPN Matsuo Toshiko 1854.02
S2 Black Win JPN Sakamoto Hirouji 2219.35
S3 White Draw JPN Okabe Hiroshi 2658.52
S4 White Loss JPN Oosumi Yuuki 2730.29
S5 White Loss JPN Kawamura Norihiko 2567.50
52 Meijinsen Tournament
Date 2014-09-15 Rating 2433.39
Round Color Result Opponent
1 Black Loss JPN Hasegawa Kazuto 2563.90
2 Black Loss JPN Matsuura Hiroshi 2297.08
3 White Loss JPN Oosumi Yuuki 2734.19
4 Black Loss JPN Nakayama Tomoharu 2632.78
5 White Loss JPN Sato Kiyotomi 2401.14
6 Black Draw JPN Okabe Hiroshi 2661.41
7 Black Loss JPN Tamada Yoichi 2478.88
8 Black Draw JPN Kashihara Akihiko 2264.75
9 Black Loss JPN Fukui Nobuhiro 2533.78
52 Meijinsen Qualification Kansai area 2nd round
Date 2014-06-15 Rating 2447.03
Round Color Result Opponent
1 White Win JPN Miyagawa Junzo 2139.59
2 Black Win JPN Sakamoto Hirouji 2225.31
3 White Loss JPN Kashihara Akihiko 2265.90
52 Meijinsen Qualification Kansai area 1st round
Date 2014-05-18 Rating 2451.96
Round Color Result Opponent
1 White Win JPN Koiso Shigemasa 2093.02
2 Black Win JPN Miyagawa Junzo 2139.00
3 White Win JPN Kashihara Akihiko 2264.27
4 Black Draw JPN Sakamoto Hirouji 2225.96
Team World Championship
Date 2014-05-03 Rating 2454.35
Round Color Result Opponent
1 Black Win JPN Ono Takayuki 2300.99
3 Black Draw EST Hõbemägi Martin 2544.39
4 Black Win RUS Epifanov Dmitry 2590.00
6 Black Win JPN Ono Takayuki 2300.99
8 Black Loss EST Hõbemägi Martin 2544.39
9 White Loss RUS Chingin Konstantin 2774.12
9th Kansai Championship final match
Date 2014-04-06 Rating 2456.89
Round Color Result Opponent
1 White Draw JPN Oosumi Yuuki 2735.38
2 White Win JPN Oosumi Yuuki 2735.38
3 Black Loss JPN Oosumi Yuuki 2735.38
4 Black Loss JPN Oosumi Yuuki 2735.38
9th Kansai Championship 2nd round
Date 2014-02-16 Rating 2458.47
Round Color Result Opponent
1 White Win JPN Sakamoto Hirouji 2224.65
3 Black Win JPN Hasegawa Kazuto 2545.52
9th All Japan Championship
Date 2014-01-26 Rating 2457.85
Round Color Result Opponent
1 White Win JPN Miyagawa Junzo 2132.44
2 White Draw JPN Oosumi Yuuki 2740.53
3 Black Win JPN Sato Kiyotomi 2383.85
4 White Win JPN Nakayama Tomoharu 2592.73
5 Black Loss JPN Okabe Hiroshi 2670.27
6 Black Win JPN Ono Takayuki 2300.68
45 Kyoto Classified Tournament
Date 2013-11-10 Rating 2446.39
Round Color Result Opponent
S1 Black Win JPN Kawano Takahisa 2296.56
S2 White Loss JPN Hasegawa Kazuto 2540.53
S3 White Win SWE Sandstrom Richard 2297.95
S4 Black Loss JPN Fukui Nobuhiro 2514.33
S5 White Win JPN Ishitani Shin-ichi 2344.36
9th Kansai Championship 1st round
Date 2013-10-27 Rating 2444.12
Round Color Result Opponent
1 Black Win JPN Sakamoto Hirouji 2225.88
2 Black Win JPN Watanabe Nobuo 1963.52
3 White Win JPN Kubo Izumi 2029.69
4 White Win JPN Kon Akira 1921.89
51 Meijinsen Qualification Kansai area 2nd round
Date 2013-06-16 Rating 2418.48
Round Color Result Opponent
1 White Draw JPN Hata Masayuki 2180.48
2 White Loss JPN Hasegawa Kazuto 2531.53
3 Black Win JPN Matsui Tsunehiro 2117.16
ex Black Loss JPN Hata Masayuki 2180.48
51 Meijinsen Qualification Kansai area 1st round
Date 2013-05-19 Rating 2415.76
Round Color Result Opponent
1 Black Loss JPN Hata Masayuki 2180.37
2 Black Win JPN Sakamoto Hirouji 2223.45
3 Black Win JPN Kubo Izumi 2020.96
4 Black Win JPN Matsui Tsunehiro 2117.35
5 Black Win JPN Koiso Shigemasa 2085.83
8th All Japan Championship
Date 2013-03-24 Rating 2411.03
Round Color Result Opponent
1 Black Win JPN Miyagawa Junzo 2145.54
2 White Win JPN Ishitani Shin-ichi 2306.34
3 Black Loss JPN Nakamura Shigeru 2787.36
4 White Loss JPN Okabe Hiroshi 2648.71
5 Black Draw JPN Kamiya Shunsuke 2458.21
6 Black Draw JPN Sato Kiyotomi 2361.12
8th Kansai Championship 2nd round
Date 2013-02-17 Rating 2407.49
Round Color Result Opponent
1 White Win JPN Takahashi Roi 2112.18
2 White Win JPN Miyagawa Junzo 2145.27
3 White Loss JPN Hasegawa Kazuto 2521.66
ex White Loss JPN Hasegawa Kazuto 2521.66
44 Kyoto Classified Tournament
Date 2012-11-11 Rating 2400.13
Round Color Result Opponent
S1 White Loss JPN Kudomi Takahiro 2337.09
S2 White Win JPN Tamura Kazumasa 2445.21
S3 White Draw JPN Ono Takayuki 2343.40
S4 White Loss JPN Ishitani Shin-ichi 2296.62
8th Kansai Championship 1st round
Date 2012-10-08 Rating 2399.47
Round Color Result Opponent
1 White Win JPN Takahashi Roi 2106.65
2 White Win JPN Miyagawa Junzo 2144.30
3 White Loss JPN Hasegawa Kazuto 2509.42
4 White Win JPN Koiso Shigemasa 2093.79
5 White Win JPN Kon Akira 1932.98
50th Meijinsen Tournament
Date 2012-09-17 Rating 2398.74
Round Color Result Opponent
1 White Win JPN Ono Takayuki 2347.74
2 White Loss JPN Nakayama Tomoharu 2545.49
3 Black Loss JPN Yamaguchi Yusui 2559.47
4 Black Loss JPN Nagasoe Hiroki 2448.31
5 White Loss JPN Fukui Nobuhiro 2460.04
6 Black Loss JPN Nakamura Shigeru 2795.94
7 White Loss JPN Okabe Hiroshi 2631.04
8 Black Win JPN Hasegawa Kazuto 2507.82
9 White Loss JPN Matsuura Hiroshi 2284.73
50 Meijinsen Qualification Kansai area 2nd round
Date 2012-06-17 Rating 2404.47
Round Color Result Opponent
1 White Win JPN Sakamoto Hirouji 2251.93
2 White Loss JPN Kise Katsumi 2468.74
3 Black Win JPN Hasegawa Kazuto 2501.95
7th Kansai Championship 2nd round
Date 2012-02-19 Rating 2407.27
Round Color Result Opponent
1 Black Win JPN Sakamoto Hirouji 2256.08
2 White Win JPN Hata Masayuki 2157.30
3 Black Loss JPN Kise Katsumi 2472.08
7th All Japan Championship
Date 2012-01-29 Rating 2407.64
Round Color Result Opponent
1 Black Win JPN Tada Ayako 2209.72
2 Black Win JPN Mitsumori Masao 2296.19
3 White Win JPN Sakamoto Hirouji 2258.44
4 White Draw JPN Nakayama Tomoharu 2522.36
5 White Loss JPN Nakamura Shigeru 2791.98
6 White Loss JPN Kudomi Takahiro 2340.79
43 Kyoto Classified Tournament
Date 2011-11-13 Rating 2407.00
Round Color Result Opponent
S1 White Loss JPN Sakamoto Hirouji 2264.62
S2 White Loss JPN Okumura Toyohiko 2271.71
S3 White Loss JPN Mano Yoshihisa 2181.67
S4 Black Win JPN Doi Manabu 2002.57
S5 White Win JPN Kubo Izumi 2029.91
49th Meijinsen Tournament
Date 2011-09-19 Rating 2414.61
Round Color Result Opponent
1 Black Win JPN Sakashita Shoichi 2077.32
2 White Win JPN Kashihara Akihiko 2194.29
3 Black Loss JPN Matsuura Hiroshi 2293.15
4 Black Draw JPN Nakayama Tomoharu 2501.18
5 Black Draw JPN Hasegawa Kazuto 2489.64
6 Black Win JPN Kubo Izumi 2035.22
7 Black Loss JPN Okabe Hiroshi 2622.75
8 White Loss JPN Yamaguchi Yusui 2557.80
9 White Win JPN Miyoshi Takeo 2094.29
World Championship BT
Date 2011-08-06 Rating 2421.98
Round Color Result Opponent
1 White Loss RUS Nikonov Konstantin 2551.17
2 White Win RUS Rachitskaya Viktoria 2190.65
3 Black Win EST Staub Rain 1857.16
4 White Win JPN Ono Takayuki 2327.97
5 White Loss EST Pajuste Renee 2397.42
6 Black Win EST Hõbemägi Martin 2336.11
7 Black Win RUS Karasyov Maxim 2552.37
8 White Win JPN Nakayama Tomoharu 2494.95
9 White Draw RUS Potapov Alexey 2529.94
49 Meijinsen Qualification Kansai area 2nd round
Date 2011-06-19 Rating 2424.44
Round Color Result Opponent
1 White Win JPN Kubo Izumi 2040.34
2 Black Draw JPN Kashihara Akihiko 2190.97
3 White Win JPN Kise Katsumi 2466.00
6th All Japan Championship
Date 2011-03-27 Rating 2426.45
Round Color Result Opponent
1 White Win JPN Miyoshi Takeo 2081.97
2 White Win JPN Kon Akira 1947.02
3 White Draw JPN Hasegawa Kazuto 2516.71
4 White Loss JPN Okabe Hiroshi 2612.80
5 White Loss JPN Tamada Yoichi 2427.33
6 White Win JPN Kawano Takahisa 2280.29
6th Kansai Championship final match
Date 2011-03-20 Rating 2426.70
Round Color Result Opponent
1 White Loss JPN Oosumi Yuuki 2655.57
2 White Loss JPN Oosumi Yuuki 2655.57
48th Meijinsen Tournament
Date 2010-09-20 Rating 2438.68
Round Color Result Opponent
1 White Win JPN Sakamoto Hirouji 2251.75
2 White Win JPN Tamada Yoichi 2411.49
3 Black Win JPN Matsuura Hiroshi 2277.42
4 White Draw JPN Okabe Hiroshi 2605.00
5 White Draw JPN Kawano Takahisa 2258.24
6 White Win JPN Ishitani Shin-ichi 2311.24
7 Black Loss JPN Yamaguchi Yusui 2505.02
8 White Win JPN Koiso Shigemasa 2094.79
9 White Loss JPN Oosumi Yuuki 2623.02
Team World Championship
Date 2010-05-05 Rating 2439.98
Round Color Result Opponent
3 White Win RUS Artemyev Sergey 2531.86
4 Black Loss EST Purk Andry 2573.02
5 Black Win EST Väljataga Paul 2327.90
7 White Win AZE Eibatov Nizami 2264.99
10 White Loss RUS Sumarokov Evgeny 2460.18
5th Kansai Championship final match
Date 2010-03-28 Rating 2439.06
Round Color Result Opponent
1 White Win JPN Oosumi Yuuki 2582.37
2 White Win JPN Oosumi Yuuki 2582.37
5th All Japan Championship
Date 2010-03-21 Rating 2438.17
Round Color Result Opponent
1 White Win JPN Tadokoro Hosai 1869.88
2 Black Loss JPN Nakamura Shigeru 2765.15
3 Black Win JPN Maruta Hiroki 2033.02
4 White Win KOR Kim Chang-Su 2006.22
5 Black Loss JPN Yamaguchi Yusui 2492.97
6 White Loss JPN Shimoyama Takuma 2190.58
5th Kansai Championship 3rd round
Date 2010-02-14 Rating 2436.72
Round Color Result Opponent
1 Black Win JPN Hata Masayuki 2097.62
2 White Win JPN Hasegawa Kazuto 2583.01
3 White Win JPN Sagara Takashi 2387.03
13th Mikami Cup Tournament
Date 2010-01-31 Rating 2434.84
Round Color Result Opponent
S1 Black Win JPN Suzuki Junichiro 1869.27
S2 White Loss JPN Nakamura Shigeru 2766.61
S3 Black Loss JPN Kataoka Mitsuaki 2152.77
S4 White Draw JPN Nagao Noriaki 2333.71
S5 Black Win JPN Ono Takayuki 2311.94
5th Kansai Championship 2nd round
Date 2009-11-15 Rating 2428.72
Round Color Result Opponent
1 Black Loss JPN Koiso Shigemasa 2099.86
2 Black Win JPN Sakamoto Hirouji 2219.03
3 Black Win JPN Kon Akira 1923.97
4 Black Win JPN Miyagawa Junzo 2134.22
41 Kyoto Classified Tournament
Date 2009-11-08 Rating 2428.39
Round Color Result Opponent
S1 Black Loss JPN Hasegawa Kazuto 2591.84
S2 White Win JPN Sakamoto Hirouji 2218.32
S3 White Win JPN Kudomi Takahiro 2299.45
S4 White Win JPN Okabe Hiroshi 2578.52
S5 Black Loss JPN Okumura Toyohiko 2283.79
47th Meijinsen tournament
Date 2009-09-22 Rating 2425.19
Round Color Result Opponent
1 White Win JPN Tamura Kazumasa 2425.34
2 White Win JPN Yamaguchi Yusui 2479.36
3 Black Loss JPN Kawamura Norihiko 2548.87
4 Black Win JPN Kataoka Mitsuaki 2144.01
5 White Loss JPN Oosumi Yuuki 2563.69
6 White Draw JPN Ishitani Shin-ichi 2288.70
7 White Win JPN Matsuura Hiroshi 2243.45
8 White Loss JPN Okabe Hiroshi 2574.26
9 White Win JPN Sakamoto Hirouji 2212.52
The 6th Shanghai Renju Meijin Invitation Tournament
Date 2009-05-03 Rating 2409.15
Round Color Result Opponent
1 White Draw JPN Oosumi Yuuki 2557.30
2 Black Loss CHN Gu Wei 2451.03
3 Black Loss CHN Li Yi 2603.47
4 Black Loss CHN Yu Manjiang 2440.62
5 Black Win CHN Xu Bin 2137.77
6 White Win JPN Mitsumori Masao 2275.42
7 White Draw JPN Isobe Taizan 2333.67
4th All Japan Championship
Date 2009-03-21 Rating 2406.07
Round Color Result Opponent
1 Black Win JPN Iwano Fumio 2138.75
2 White Loss JPN Tamura Kazumasa 2421.77
3 Black Loss JPN Tamada Yoichi 2257.53
4 Black Win JPN Tanizaki Ryusuke 2037.35
5 White Win JPN Sakamoto Hirouji 2202.58
6 White Draw JPN Ishitani Shin-ichi 2290.03
4 Kansai Championship 3rd round
Date 2009-02-15 Rating 2405.71
Round Color Result Opponent
1 White Loss JPN Tamura Kazumasa 2415.27
2 Black Loss JPN Oosumi Yuuki 2548.96
3 Black Loss JPN Takashima Junya 2423.20
4th Kansai Championship, 2nd round
Date 2008-11-16 Rating 2413.29
Round Color Result Opponent
1 Black Win JPN Sakamoto Hirouji 2194.10
2 Black Win JPN Miyagawa Junzo 2149.88
3 White Draw JPN Tamura Kazumasa 2399.81
4 White Loss JPN Takashima Junya 2422.28
46th Meijinsen Tournament
Date 2008-09-15 Rating 2418.95
Round Color Result Opponent
1 White Win JPN Matsuura Hiroshi 2201.94
2 Black Win JPN Oosumi Yuuki 2508.95
3 Black Loss JPN Okabe Hiroshi 2556.92
4 Black Win JPN Yamaguchi Yusui 2478.82
5 Black Win JPN Kataoka Mitsuaki 2113.35
6 Black Win JPN Hata Masayuki 2183.19
7 White Loss JPN Sato Kiyotomi 2304.97
8 Black Draw JPN Ishitani Shin-ichi 2277.48
9 Black Loss JPN Kawamura Norihiko 2562.13
46th Meijinsen Qualification Kansai area 2nd round
Date 2008-06-15 Rating 2425.17
Round Color Result Opponent
1 Black Draw JPN Miyagawa Junzo 2158.97
2 Black Win JPN Sakamoto Hirouji 2196.88
3 White Loss JPN Hata Masayuki 2194.99
Team World Championship
Date 2008-05-02 Rating 2431.09
Round Color Result Opponent
1 Black Draw CZE Laube Pavel 2372.05
2 White Win RUS Artemyev Sergey 2541.71
3 Black Win CHN Cao Dong 2584.57
4 White Loss SWE Karlsson Stefan 2496.26
5 White Loss RUS Sushkov Vladimir 2657.27
7 Black Win EST Taimla Tunnet 2687.19
8 White Draw FIN Saarenpää Samuli 2319.65
9 Black Win UKR Piddubny Konstantin 2161.59
3rd Kansai Championship 3rd round
Date 2008-01-13 Rating 2433.73
Round Color Result Opponent
1 White Win JPN Takagawa Teiji 2164.29
2 White Win JPN Tamura Kazumasa 2348.82
3 White Loss JPN Oosumi Yuuki 2477.94
The 45th Meijin-sen Tournament
Date 2007-09-17 Rating 2435.52
Round Color Result Opponent
1 White Loss JPN Isobe Taizan 2319.95
2 Black Loss JPN Miyoshi Takeo 2181.52
3 Black Loss JPN Okabe Hiroshi 2505.36
4 White Win JPN Matsuura Hiroshi 2179.31
5 White Win JPN Kawamura Norihiko 2539.74
6 Black Win JPN Sato Kiyotomi 2256.64
7 Black Win JPN Hiwatashi Kikuma 1807.86
8 White Draw JPN Oosumi Yuuki 2457.24
9 White Win JPN Yamaguchi Yusui 2532.61
World Championship AT
Date 2007-08-15 Rating 2436.23
Round Color Result Opponent
1 White Draw EST Oll Aivo 2559.52
2 Black Loss JPN Okabe Hiroshi 2499.47
3 Black Loss JPN Yamaguchi Yusui 2535.08
4 White Loss CHN Wu Di 2606.39
5 Black Loss EST Taimla Tunnet 2657.48
6 Black Win RUS Kozhin Mikhail 2496.90
7 Black Loss RUS Sushkov Vladimir 2650.90
8 White Loss RUS Savrasova Yulia 2568.06
9 White Win EST Purk Andry 2529.24
10 White Draw RUS Chingin Konstantin 2683.26
11 White Loss SWE Karlsson Stefan 2500.47
World Championship QT
Date 2007-08-08 Rating 2436.65
Round Color Result Opponent
1 Black Win JPN Ishitani Shin-ichi 2255.38
2 White Win ARM Poghosyan Albert 2295.21
3 White Draw JPN Okabe Hiroshi 2498.74
4 Black Win SWE Jonsson Peter 2254.84
5 Black Win CHN Qiu Yunfei 2396.01
6 White Win TPE Lin Huang-Yu 2441.40
7 White Win SWE Andersson Tord 2262.85
45th Meijinsen Qualification Kansai area final round
Date 2007-06-17 Rating 2431.55
Round Color Result Opponent
1 Black Win JPN Hata Masayuki 2191.06
2 Black Loss JPN Sakamoto Hirouji 2194.34
3 Black Win JPN Oosumi Yuuki 2430.62
2nd All Japan Championship (WC Qualification)
Date 2007-03-25 Rating 2423.92
Round Color Result Opponent
1 Black Loss JPN Ono Takayuki 2291.16
2 Black Win JPN Tanizaki Ryusuke 2046.25
4 White Loss JPN Isobe Taizan 2310.37
2nd Kansai Championship, Final Match
Date 2007-03-18 Rating 2423.93
Round Color Result Opponent
1 White Loss JPN Hasegawa Kazuto 2648.54
2 Black Loss JPN Hasegawa Kazuto 2648.54
2nd Kansai Championship 3rd round
Date 2007-01-14 Rating 2426.02
Round Color Result Opponent
1 Black Win JPN Oosumi Yuuki 2383.17
2 White Win JPN Sagara Takashi 2391.16
3 Black Draw JPN Takashima Junya 2390.14
2nd Kansai Championship 2nd round
Date 2006-10-15 Rating 2423.38
Round Color Result Opponent
1 Black Loss JPN Oosumi Yuuki 2359.50
2 Black Win JPN Doi Manabu 2005.77
3 Black Win JPN Ozawa Tetsushi 2031.50
4 Black Win JPN Takagawa Teiji 2200.23
The 44th Meijin-sen Tournament
Date 2006-09-18 Rating 2422.99
Round Color Result Opponent
1 White Draw JPN Nagao Noriaki 2225.08
2 White Loss JPN Okabe Hiroshi 2465.48
3 Black Loss JPN Kawamura Norihiko 2566.54
4 White Loss JPN Yamaguchi Yusui 2519.25
5 Black Win JPN Ishitani Shin-ichi 2238.51
6 Black Win JPN Oosumi Yuuki 2351.33
7 Black Win JPN Fujii Naoki 1975.35
8 White Win JPN Matsuura Hiroshi 2181.29
9 White Win JPN Sato Kiyotomi 2275.85
Asian Championship
Date 2006-08-15 Rating 2422.86
Round Color Result Opponent
1 White Draw JPN Kashihara Akihiko 2219.19
2 Black Win KOR Lee Jo-Sub 2284.42
3 Black Win JPN Oosumi Yuuki 2343.06
4 White Draw JPN Yamaguchi Yusui 2516.69
5 Black Win KOR Park Jeong Ho 2308.50
6 Black Loss KOR Kim Chang-Hoon 2449.79
7 Black Win JPN Ishitani Shin-ichi 2238.94
8 White Loss JPN Okabe Hiroshi 2463.16
Meijin-sen Qual, Kansai-Hokuriku area final round
Date 2006-06-18 Rating 2421.51
Round Color Result Opponent
1 Black Win JPN Oosumi Yuuki 2331.79
2 White Win JPN Takashima Junya 2375.05
3 White Win JPN Hata Masayuki 2199.12
Meijin-sen Qual, Kansai area 1st round
Date 2006-05-14 Rating 2418.03
Round Color Result Opponent
1 White Win JPN Okuda Shingo 1858.51
2 White Win JPN Hata Masayuki 2199.57
3 Black Win JPN Takagawa Teiji 2209.64
4 Black Win JPN Matsui Tsunehiro 2122.35
Team World Championship
Date 2006-05-05 Rating 2416.71
Round Color Result Opponent
1 White Loss FIN Pellikka Marko 2223.36
2 White Loss SWE Andersson Tord 2248.89
3 White Draw EST Oll Aivo 2542.83
4 Black Win RUS Skuridin Alexey 2326.17
5 Black Win CHN Ge Lingfeng 2300.97
6 White Loss RUS Savrasova Yulia 2539.27
7 White Win EST Sulane Sander 2015.94
F1 White Loss SWE Gaulitz Joachim 2366.48
F2 White Win SWE Andersson Tord 2248.89
1st Kansai Championship 2nd round
Date 2005-10-16 Rating 2403.95
Round Color Result Opponent
1 Black Win JPN Adachi Yasuhiro 1757.04
2 Black Win JPN Hata Masayuki 2186.76
3 White Draw JPN Takagawa Teiji 2222.02
4 Black Loss JPN Hasegawa Kazuto 2612.06
World Championship QT
Date 2005-07-31 Rating 2400.35
Round Color Result Opponent
1 Black Win JPN Oosumi Yuuki 2296.18
4 Black Win RUS Kozhin Mikhail 2473.07
5 Black Draw JPN Yamaguchi Yusui 2479.65
6 White Loss RUS Sushkov Vladimir 2591.52
7 White Win EST Ilu Timo 2413.49
43rd Meijinsen Qualification: Kansai area 1st round
Date 2005-05-08 Rating 2388.08
Round Color Result Opponent
1 White Win JPN Matsui Tsunehiro 2128.03
2 Black Win JPN Iwata Akihisa 2141.48
3 White Loss JPN Takashima Junya 2335.35
4 Black Loss JPN Tamura Kazumasa 2310.23
The 42nd Meijin-sen Tournament
Date 2004-09-20 Rating 2368.28
Round Color Result Opponent
1 White Win JPN Okabe Hiroshi 2400.33
2 White Loss JPN Kawamura Norihiko 2593.23
3 Black Win JPN Sakashita Shoichi 2112.46
4 White Loss JPN Ishitani Shin-ichi 2257.15
5 White Loss JPN Hasegawa Kazuto 2570.89
6 White Win JPN Saito Koji 2072.41
7 Black Loss JPN Sakamoto Hirouji 2144.91
8 White Loss JPN Matsuura Hiroshi 2242.78
9 White Win JPN Takagawa Teiji 2232.37
Team World Championship
Date 2004-05-05 Rating 2370.37
Round Color Result Opponent
1 Black Loss SWE Karlsson Stefan 2425.31
2 White Win BLR Degtyar Felix 1978.37
3 Black Loss EST Meritee Ando 2723.35
4 White Win UZB Khramov Andrey 2170.98
6 Black Win UKR Piddubny Konstantin 2082.49
7 Black Loss RUS Salnikov Pavel 2461.01
8 Black Loss RUS Kareyev Vladislav 2492.50
9 Black Draw RUS Sushkov Vladimir 2571.30
41st Meijin-sen Tournament
Date 2003-09-15 Rating 2382.29
Round Color Result Opponent
1 White Win JPN Matsuura Hiroshi 2249.83
2 White Win JPN Miyagawa Junzo 2081.66
3 White Win JPN Takashima Junya 2197.14
4 White Loss JPN Kuga Akio 2261.79
5 White Loss JPN Hasegawa Kazuto 2533.93
6 Black Win JPN Kudomi Takahiro 2280.46
7 White Win JPN Ishitani Shin-ichi 2257.91
8 White Win JPN Isobe Taizan 2209.61
9 White Win JPN Okabe Hiroshi 2387.99
World Championship AT
Date 2003-08-08 Rating 2380.78
Round Color Result Opponent
1 White Draw JPN Yamaguchi Yusui 2476.29
2 White Loss EST Taimla Tunnet 2568.15
3 White Draw JPN Okabe Hiroshi 2387.50
4 White Loss RUS Chingin Konstantin 2598.16
5 White Loss EST Meritee Ando 2708.69
6 White Loss RUS Sinyov Igor 2479.47
7 White Draw SWE Karlsson Stefan 2424.02
8 White Win SWE Gaulitz Joachim 2311.35
9 White Win SWE Andersson Tord 2263.91
10 Black Win SWE Carlsson Martin 2274.07
11 Black Loss RUS Sushkov Vladimir 2575.33
World Championship QT
Date 2003-07-31 Rating 2380.41
Round Color Result Opponent
1 Black Win JPN Mitsumori Masao 2237.43
2 White Draw RUS Karasyov Maxim 2394.61
3 White Draw JPN Yamaguchi Yusui 2477.09
4 White Win TPE Chang Yi-Feng 2283.49
5 White Win JPN Ishitani Shin-ichi 2257.84
6 White Win AZE Eibatov Nizami 2278.65
7 White Draw RUS Sushkov Vladimir 2574.83
40th Meijin-sen Tournament
Date 2002-09-16 Rating 2324.07
Round Color Result Opponent
1 Black Loss JPN Takagawa Teiji 2245.32
2 Black Loss JPN Ishitani Shin-ichi 2260.11
3 Black Win JPN Okabe Hiroshi 2335.40
4 White Draw JPN Isobe Taizan 2223.14
5 White Loss JPN Hasegawa Kazuto 2516.71
6 White Loss JPN Yamaguchi Yusui 2489.76
7 Black Win JPN Nishimura Toshio 2221.38
8 Black Win JPN Kudomi Takahiro 2291.95
9 Black Win JPN Matsuura Hiroshi 2191.28
40th Meijinsen Qualification: Kansai-Hokuriku 2nd Round
Date 2002-06-16 Rating 2309.32
Round Color Result Opponent
1 White Win JPN Miyagawa Sou 1865.81
2 Black Win JPN Sakamoto Hirouji 2139.24
3 White Win JPN Ikeshima Wakio 1873.77
4 Black Draw JPN Miyagawa Junzo 2075.78
5 Black Draw JPN Takagawa Teiji 2244.81
Team World Championship
Date 2002-05-03 Rating 2302.15
Round Color Result Opponent
1 Black Loss EST Taimla Tunnet 2443.09
2 Black Loss RUS Dvoeglazov Vladimir 2250.07
3 Black Win UKR Drozd Olexandr 2145.45
4 White Loss SWE Carlsson Martin 2209.11
5 Black Loss SWE Gardstrom Petter 2379.28
6 White Win KOR Lee Yun-Sub 1969.31
7 White Loss RUS Semyonov Vladimir 2296.32
8 White Loss SWE Carlsson Martin 2209.11
9 White Win SWE Carlsson Martin 2209.11
The 39th Meijin-sen Tournament
Date 2001-09-24 Rating 2303.16
Round Color Result Opponent
1 White Loss JPN Kudomi Takahiro 2296.14
2 Black Win JPN Hayakawa Yoshimi 2355.66
3 White Win JPN Takagawa Teiji 2241.52
4 White Win JPN Maruyama Yasushi 2109.65
5 White Draw JPN Yamaguchi Yusui 2458.13
6 White Loss JPN Nishimura Toshio 2244.70
7 White Win JPN Matsuura Hiroshi 2173.69
8 White Loss JPN Nara Hideki 2458.02
9 White Loss JPN Hasegawa Kazuto 2500.87
World Championship BT
Date 2001-08-12 Rating 2302.92
Round Color Result Opponent
1 White Win JPN Tatsutomi Hiroyuki 2075.21
2 Black Win RUS Chernov Sergey 2204.89
3 Black Win JPN Ono Takayuki 2160.72
4 White Loss JPN Hasegawa Kazuto 2500.03
5 White Win UZB Khramov Andrey 2140.29
6 White Win JPN Sakamoto Hirouji 2154.34
7 White Loss JPN Kusajima Masato 2249.04
8 White Win JPN Kudomi Takahiro 2293.65
32-nd Kyoto Classified - Special class
Date 2000-11-12 Rating 2278.51
Round Color Result Opponent
1 White Loss JPN Nara Hideki 2480.23
2 Black Win JPN Sakamoto Hirouji 2158.60
3 Black Loss JPN Hasegawa Kazuto 2499.63
4 Black Win JPN Koiso Shigemasa 1968.07
38th Meijinsen Tournament
Date 2000-10-01 Rating 2274.70
Round Color Result Opponent
1 White Win JPN Fujinami Hisao 2121.31
2 Black Loss JPN Kudomi Takahiro 2274.25
3 White Loss JPN Hasegawa Kazuto 2499.38
4 White Loss JPN Arai Yutaka 2067.11
5 White Win JPN Nishizono Norio 2300.49
6 Black Draw JPN Hayakawa Yoshimi 2369.87
7 White Loss JPN Maruyama Yasushi 2114.32
8 Black Loss JPN Nara Hideki 2482.48
9 Black Win JPN Kusajima Masato 2222.74
Meijinsen Qualification: Kansai-Hokuriku 2nd Round
Date 2000-06-19 Rating 2273.30
Round Color Result Opponent
1 White Win JPN Sakamoto Hirouji 2164.50
2 White Loss JPN Hayakawa Yoshimi 2383.29
3 White Win JPN Takehara Kenji 1772.57
38th Meijinsen Qualification: Kansai area 1st Round
Date 2000-05-21 Rating 2272.79
Round Color Result Opponent
1 White Win JPN Tatsutomi Hiroyuki 2056.23
2 White Loss JPN Hayakawa Yoshimi 2386.29
3 Black Win JPN Matsui Tsunehiro 2164.01
4 White Win JPN Iwata Akihisa 2146.28