JPN Iio Yoshihiro

Place: Kobe, Japan

Rating: 2335.12, Rank: 149

First game: 2000-05-21, Last game: 2021-06-20

Top rating: 2477.69 (2016-05-15)

Games: 575, Wins: 289, Draws: 69, Losses: 217

Gy1: 12, Gy2: 33, Gy5: 114

59 Meijinsen Qualification Kansai area 1st round
Date 2021-06-20 Rating 2335.12
Round Color Result Opponent
1 Black Win JPN Tanaka Toshiki 2400.10
2 White Win JPN Hayashi Shoichi 2132.18
3 White Draw JPN Hasegawa Kazuto 2507.09
4 White Win JPN Hata Masayuki 2110.62
16 Kansai Championship 2nd round
Date 2021-02-21 Rating 2323.86
Round Color Result Opponent
1 Black Loss JPN Sakamoto Hirouji 2234.56
2 Black Loss JPN Makino Mitsunori 2457.56
3 Black Loss JPN Kawamura Norihiko 2590.09
16 Kansai Championship 1st round
Date 2020-10-18 Rating 2322.42
Round Color Result Opponent
1 Black Loss JPN Kawamura Norihiko 2593.74
2 Black Win JPN Adachi Tomoya 1558.73
3 White Win JPN Hayashi Shoichi 2123.90
4 Black Win JPN Sakamoto Hirouji 2231.81
5 Black Loss JPN Tanaka Shotaro 2151.00
58 Meijinsen Qualification Kansai area 1st round
Date 2020-06-21 Rating 2323.50
Round Color Result Opponent
1 Black Win JPN Hata Masayuki 2099.56
2 Black Loss JPN Sakamoto Hirouji 2225.92
3 White Loss JPN Makino Mitsunori 2390.49
4 White Win JPN Kito Shinichi 2088.93
5 White Loss JPN Tachi Masaya 2408.47
15 Kansai Championship 2nd round
Date 2020-02-16 Rating 2334.00
Round Color Result Opponent
1 White Win JPN Kito Shinichi 2096.81
2 White Win JPN Hayashi Shoichi 2119.77
3 Black Loss JPN Makino Mitsunori 2339.79
ex Black Loss JPN Makino Mitsunori 2339.79
15th All Japan Championship
Date 2020-01-19 Rating 2337.49
Round Color Result Opponent
1 White Win JPN Hata Masayuki 2108.20
2 Black Loss JPN Nakayama Tomoharu 2755.23
3 White Loss JPN Makino Mitsunori 2327.69
4 Black Win JPN Fujita Maiko 2263.88
5 White Win JPN Ishitani Shin-ichi 2305.97
6 White Loss JPN Okabe Hiroshi 2653.67
51 Kyoto Classified Tournament
Date 2019-11-04 Rating 2345.12
Round Color Result Opponent
S1 White Win JPN Ozawa Tetsushi 1922.51
S2 Black Loss JPN Tanaka Toshiki 2420.07
S3 Black Win JPN Nishida Toshio 2005.57
S4 White Loss JPN Hasegawa Kazuto 2527.78
S5 White Loss JPN Kawamura Norihiko 2592.93
14 Kansai Championship final match R3
Date 2019-08-19 Rating 2356.53
Round Color Result Opponent
3 Black Loss JPN Hasegawa Kazuto 2526.31
57 Meijinsen Qualification Kansai area 1st round
Date 2019-05-19 Rating 2372.02
Round Color Result Opponent
1 White Win JPN Tanaka Toshiki 2417.57
2 White Loss JPN Hasegawa Kazuto 2518.57
3 White Loss JPN Tachi Masaya 2439.68
4 Black Win JPN Matsui Tsunehiro 2099.77
14 Kansai Championship final match
Date 2019-05-06 Rating 2374.18
Round Color Result Opponent
1 White Loss JPN Hasegawa Kazuto 2517.49
2 Black Win JPN Hasegawa Kazuto 2517.49
14th All Japan Championship
Date 2019-03-31 Rating 2379.11
Round Color Result Opponent
1 White Win JPN Maruta Hiroki 2093.44
2 White Loss JPN Nakayama Tomoharu 2731.46
3 White Win JPN Chigira Makoto 2014.78
4 Black Loss JPN Okabe Hiroshi 2621.84
5 Black Win JPN Ishitani Shin-ichi 2325.02
6 Black Loss JPN Nakamura Shigeru 2902.02
50 Kyoto Classified Tournament
Date 2018-11-11 Rating 2394.84
Round Color Result Opponent
1 White Loss JPN Ishitani Shin-ichi 2342.86
2 Black Win JPN Ozawa Tetsushi 1944.25
3 Black Loss JPN Sakamoto Hirouji 2224.27
4 White Win JPN Fujita Maiko 2185.82
5 Black Win JPN Hayashi Shoichi 2095.93
56 Meijinsen Qualification Kansai area 2nd round
Date 2018-06-17 Rating 2420.62
Round Color Result Opponent
1 Black Loss JPN Tachi Masaya 2463.74
2 Black Loss JPN Kawamura Norihiko 2577.19
3 Black Loss JPN Hasegawa Kazuto 2508.88
12th Team World Championship
Date 2018-05-05 Rating 2431.69
Round Color Result Opponent
1 White Win EST Piik Sander 2195.65
3 White Win SWE Jonsson Peter 2232.24
4 White Loss RUS Kozhin Mikhail 2575.73
5 White Loss RUS Epifanov Dmitry 2578.24
7 Black Win RUS Semenov Oleg 2324.83
9 White Loss CHN Cao Dong 2697.30
13 Kansai Championship final match
Date 2018-03-18 Rating 2443.99
Round Color Result Opponent
1 White Loss JPN Oosumi Yuuki 2613.93
2 Black Win JPN Oosumi Yuuki 2613.93
3 White Win JPN Oosumi Yuuki 2613.93
13 Kansai Championship 2nd round
Date 2018-02-18 Rating 2448.72
Round Color Result Opponent
1 White Win JPN Hasegawa Kazuto 2510.04
2 White Win JPN Tachi Masaya 2470.66
3 Black Win JPN Matsui Tsunehiro 2104.85
13th All Japan Championship
Date 2018-01-28 Rating 2450.33
Round Color Result Opponent
1 Black Draw JPN Ishitani Shin-ichi 2337.74
2 White Win JPN Miyamoto Syunju 2193.81
3 White Loss JPN Okabe Hiroshi 2630.40
4 White Win JPN Sato Kiyotomi 2360.95
5 White Loss JPN Kamiya Shunsuke 2712.51
6 White Loss JPN Nakayama Tomoharu 2752.86
49 Kyoto Classified Tournament
Date 2017-11-12 Rating 2457.31
Round Color Result Opponent
S1 White Win JPN Nishida Toshio 2007.21
S2 White Win JPN Hasegawa Kazuto 2518.68
S3 Black Loss JPN Kawamura Norihiko 2566.36
S4 White Win JPN Hata Masayuki 2130.74
S5 White Win JPN Ishitani Shin-ichi 2321.97
13 Kansai Championship 1st round
Date 2017-10-22 Rating 2458.04
Round Color Result Opponent
1 Black Win JPN Matsui Tsunehiro 2112.83
3 White Draw JPN Tachi Masaya 2467.77
4 Black Loss JPN Sakamoto Hirouji 2212.61
5 White Loss JPN Kawamura Norihiko 2565.01
55 Meijinsen Tournament
Date 2017-09-18 Rating 2461.79
Round Color Result Opponent
1 White Loss JPN Kamiya Shunsuke 2711.29
2 White Loss JPN Nakayama Tomoharu 2747.35
3 Black Loss JPN Okabe Hiroshi 2634.98
4 White Win JPN Tamada Yoichi 2426.94
5 Black Win JPN Maruyama Yasushi 2220.60
6 Black Win JPN Hasegawa Kazuto 2522.01
7 White Win JPN Matsuura Hiroshi 2275.37
8 White Win JPN Kawano Takahisa 2345.22
9 Black Loss JPN Sato Kiyotomi 2377.22
55 Meijinsen Qualification Kansai area 2nd round
Date 2017-06-18 Rating 2467.95
Round Color Result Opponent
1 White Win JPN Tachi Masaya 2463.80
2 White Win JPN Kawamura Norihiko 2548.52
3 White Win JPN Hasegawa Kazuto 2531.80
12th All Japan Championship
Date 2017-03-26 Rating 2462.97
Round Color Result Opponent
1 Black Draw JPN Maruta Koji 2069.91
2 White Loss JPN Ishitani Shin-ichi 2319.37
3 White Win JPN Kusajima Masato 2208.54
4 White Loss JPN Tamada Yoichi 2459.25
5 Black Draw JPN Miyamoto Syunju 2175.35
6 White Win JPN Ono Takayuki 2289.92
12 Kansai Championship 2nd round
Date 2017-02-19 Rating 2464.77
Round Color Result Opponent
1 White Win JPN Sakamoto Hirouji 2207.07
2 White Draw JPN Hasegawa Kazuto 2545.85
ex White Loss JPN Hasegawa Kazuto 2545.85
48 Kyoto Classified Tournament
Date 2016-11-13 Rating 2470.43
Round Color Result Opponent
SS1 Black Loss JPN Kawamura Norihiko 2542.11
SS2 White Win JPN Hata Masayuki 2133.60
SS4 Black Loss JPN Hasegawa Kazuto 2554.91
SS5 Black Draw JPN Okabe Hiroshi 2629.43
54 Meijinsen Tournament
Date 2016-09-19 Rating 2475.40
Round Color Result Opponent
1 Black Draw JPN Nakayama Tomoharu 2695.52
2 White Win JPN Maruyama Yasushi 2225.20
3 White Loss JPN Okabe Hiroshi 2634.28
4 Black Draw JPN Koyama Jun 2534.52
5 Black Win JPN Matsuura Hiroshi 2293.69
6 White Draw JPN Kamiya Shunsuke 2669.14
7 Black Win JPN Kuga Akio 2276.93
8 White Loss JPN Hasegawa Kazuto 2555.75
9 Black Win JPN Tanaka Toshiki 2378.00
54 Meijinsen Qualification Kansai area 2nd round
Date 2016-06-19 Rating 2476.88
Round Color Result Opponent
1 Black Win JPN Matsui Tsunehiro 2134.50
2 White Loss JPN Tanaka Toshiki 2383.60
3 White Win JPN Tachi Masaya 2415.71
54 Meijinsen Qualification Kansai area 1st round
Date 2016-05-15 Rating 2477.69
Round Color Result Opponent
1 Black Win JPN Sakamoto Hirouji 2212.77
2 White Win JPN Tachi Masaya 2411.24
3 Black Win JPN Matsui Tsunehiro 2137.33
4 White Win JPN Kawamura Norihiko 2535.18
Team World Championship
Date 2016-05-04 Rating 2476.89
Round Color Result Opponent
2 Black Loss EST Pajuste Renee 2552.28
3 Black Draw SWE Eriksson Bjorn 2212.04
4 Black Loss RUS Sushkov Vladimir 2769.45
5 White Win RUS Makarov Pavel 2522.27
6 White Win CHN Chen Xin 2337.52
7 Black Win TPE Feng Sheng-Yu 2015.82
9 White Win EST Lohmus Kristofer 2179.32
11 Kansai Championship Final match
Date 2016-04-03 Rating 2474.14
Round Color Result Opponent
1 Black Win JPN Oosumi Yuuki 2674.78
2 Black Loss JPN Oosumi Yuuki 2674.78
3 White Loss JPN Oosumi Yuuki 2674.78
11 Kansai Championship 2nd round
Date 2016-03-20 Rating 2472.60
Round Color Result Opponent
1 Black Win JPN Kashihara Akihiko 2270.23
2 Black Win JPN Tachi Masaya 2407.71
3 White Win JPN Sakamoto Hirouji 2210.72
11th All Japan Championship
Date 2016-01-11 Rating 2460.78
Round Color Result Opponent
1 White Win JPN Suzuki Rin 1885.66
2 White Loss JPN Nakamura Shigeru 2845.56
3 Black Win JPN Mano Yoshihisa 2283.08
4 White Loss JPN Nakamura Souta 2225.33
5 White Loss JPN Okabe Hiroshi 2637.17
6 White Loss JPN Ishitani Shin-ichi 2326.69
53 Meijinsen Tournament
Date 2015-09-22 Rating 2454.50
Round Color Result Opponent
1 Black Loss JPN Oosumi Yuuki 2694.88
2 White Win JPN Kawamura Norihiko 2546.18
3 Black Loss JPN Nakayama Tomoharu 2682.39
4 Black Loss JPN Matsuura Hiroshi 2325.84
5 White Draw JPN Tamada Yoichi 2494.56
6 White Draw JPN Ishitani Shin-ichi 2325.13
7 White Draw JPN Koyama Jun 2548.31
8 Black Win JPN Okabe Hiroshi 2640.52
9 Black Loss JPN Hasegawa Kazuto 2582.10
53 Meijinsen Qualification Kansai area 2nd round
Date 2015-06-21 Rating 2449.45
Round Color Result Opponent
1 Black Loss JPN Kawamura Norihiko 2558.73
2 White Loss JPN Hasegawa Kazuto 2577.98
3 White Win JPN Koiso Shigemasa 2103.49
53 Meijinsen Qualification Kansai area 1st round
Date 2015-05-17 Rating 2448.97
Round Color Result Opponent
1 White Draw JPN Tachi Masaya 2408.16
2 White Win JPN Sakamoto Hirouji 2211.87
3 White Win JPN Miyagawa Junzo 2169.01
4 Black Draw JPN Kawamura Norihiko 2561.01
10 Kansai Championship final match
Date 2015-03-15 Rating 2445.94
Round Color Result Opponent
1 White Loss JPN Oosumi Yuuki 2721.77
2 Black Loss JPN Oosumi Yuuki 2721.77
10 Kansai Championship 2nd round
Date 2015-02-15 Rating 2445.30
Round Color Result Opponent
1 Black Draw JPN Tachi Masaya 2404.00
2 Black Win JPN Sakamoto Hirouji 2217.68
3 Black Win JPN Miyagawa Junzo 2165.70
46 Kyoto Classified Tournament
Date 2014-11-09 Rating 2440.72
Round Color Result Opponent
S1 Black Win JPN Matsuo Toshiko 1857.48
S2 Black Win JPN Sakamoto Hirouji 2224.25
S3 White Draw JPN Okabe Hiroshi 2663.20
S4 White Loss JPN Oosumi Yuuki 2734.88
S5 White Loss JPN Kawamura Norihiko 2572.76
52 Meijinsen Tournament
Date 2014-09-15 Rating 2437.89
Round Color Result Opponent
1 Black Loss JPN Hasegawa Kazuto 2568.59
2 Black Loss JPN Matsuura Hiroshi 2304.24
3 White Loss JPN Oosumi Yuuki 2738.78
4 Black Loss JPN Nakayama Tomoharu 2637.64
5 White Loss JPN Sato Kiyotomi 2404.92
6 Black Draw JPN Okabe Hiroshi 2666.05
7 Black Loss JPN Tamada Yoichi 2482.36
8 Black Draw JPN Kashihara Akihiko 2269.05
9 Black Loss JPN Fukui Nobuhiro 2538.09
52 Meijinsen Qualification Kansai area 2nd round
Date 2014-06-15 Rating 2451.43
Round Color Result Opponent
1 White Win JPN Miyagawa Junzo 2144.18
2 Black Win JPN Sakamoto Hirouji 2230.01
3 White Loss JPN Kashihara Akihiko 2270.13
52 Meijinsen Qualification Kansai area 1st round
Date 2014-05-18 Rating 2456.34
Round Color Result Opponent
1 White Win JPN Koiso Shigemasa 2097.66
2 Black Win JPN Miyagawa Junzo 2143.57
3 White Win JPN Kashihara Akihiko 2268.48
4 Black Draw JPN Sakamoto Hirouji 2230.63
Team World Championship
Date 2014-05-03 Rating 2458.71
Round Color Result Opponent
1 Black Win JPN Ono Takayuki 2304.75
3 Black Draw EST Hõbemägi Martin 2543.52
4 Black Win RUS Epifanov Dmitry 2596.45
6 Black Win JPN Ono Takayuki 2304.75
8 Black Loss EST Hõbemägi Martin 2543.52
9 White Loss RUS Chingin Konstantin 2778.67
9th Kansai Championship final match
Date 2014-04-06 Rating 2461.24
Round Color Result Opponent
1 White Draw JPN Oosumi Yuuki 2739.91
2 White Win JPN Oosumi Yuuki 2739.91
3 Black Loss JPN Oosumi Yuuki 2739.91
4 Black Loss JPN Oosumi Yuuki 2739.91
9th Kansai Championship 2nd round
Date 2014-02-16 Rating 2462.82
Round Color Result Opponent
1 White Win JPN Sakamoto Hirouji 2229.22
3 Black Win JPN Hasegawa Kazuto 2550.11
9th All Japan Championship
Date 2014-01-26 Rating 2462.20
Round Color Result Opponent
1 White Win JPN Miyagawa Junzo 2136.94
2 White Draw JPN Oosumi Yuuki 2745.00
3 Black Win JPN Sato Kiyotomi 2387.66
4 White Win JPN Nakayama Tomoharu 2597.37
5 Black Loss JPN Okabe Hiroshi 2674.79
6 Black Win JPN Ono Takayuki 2304.52
45 Kyoto Classified Tournament
Date 2013-11-10 Rating 2450.73
Round Color Result Opponent
S1 Black Win JPN Kawano Takahisa 2299.27
S2 White Loss JPN Hasegawa Kazuto 2545.07
S3 White Win SWE Sandstrom Richard 2303.94
S4 Black Loss JPN Fukui Nobuhiro 2518.51
S5 White Win JPN Ishitani Shin-ichi 2348.91
9th Kansai Championship 1st round
Date 2013-10-27 Rating 2448.45
Round Color Result Opponent
1 Black Win JPN Sakamoto Hirouji 2230.33
2 Black Win JPN Watanabe Nobuo 1966.47
3 White Win JPN Kubo Izumi 2033.52
4 White Win JPN Kon Akira 1925.40
51 Meijinsen Qualification Kansai area 2nd round
Date 2013-06-16 Rating 2422.79
Round Color Result Opponent
1 White Draw JPN Hata Masayuki 2185.02
2 White Loss JPN Hasegawa Kazuto 2536.02
3 Black Win JPN Matsui Tsunehiro 2121.04
ex Black Loss JPN Hata Masayuki 2185.02
51 Meijinsen Qualification Kansai area 1st round
Date 2013-05-19 Rating 2420.06
Round Color Result Opponent
1 Black Loss JPN Hata Masayuki 2184.87
2 Black Win JPN Sakamoto Hirouji 2227.77
3 Black Win JPN Kubo Izumi 2024.73
4 Black Win JPN Matsui Tsunehiro 2121.23
5 Black Win JPN Koiso Shigemasa 2090.11
8th All Japan Championship
Date 2013-03-24 Rating 2415.32
Round Color Result Opponent
1 Black Win JPN Miyagawa Junzo 2149.78
2 White Win JPN Ishitani Shin-ichi 2310.60
3 Black Loss JPN Nakamura Shigeru 2790.59
4 White Loss JPN Okabe Hiroshi 2653.11
5 Black Draw JPN Kamiya Shunsuke 2462.27
6 Black Draw JPN Sato Kiyotomi 2364.82
8th Kansai Championship 2nd round
Date 2013-02-17 Rating 2411.79
Round Color Result Opponent
1 White Win JPN Takahashi Roi 2115.54
2 White Win JPN Miyagawa Junzo 2149.47
3 White Loss JPN Hasegawa Kazuto 2526.12
ex White Loss JPN Hasegawa Kazuto 2526.12
44 Kyoto Classified Tournament
Date 2012-11-11 Rating 2404.43
Round Color Result Opponent
S1 White Loss JPN Kudomi Takahiro 2341.16
S2 White Win JPN Tamura Kazumasa 2449.36
S3 White Draw JPN Ono Takayuki 2347.40
S4 White Loss JPN Ishitani Shin-ichi 2300.68
8th Kansai Championship 1st round
Date 2012-10-08 Rating 2403.77
Round Color Result Opponent
1 White Win JPN Takahashi Roi 2109.98
2 White Win JPN Miyagawa Junzo 2148.37
3 White Loss JPN Hasegawa Kazuto 2513.87
4 White Win JPN Koiso Shigemasa 2097.89
5 White Win JPN Kon Akira 1936.37
50th Meijinsen Tournament
Date 2012-09-17 Rating 2403.05
Round Color Result Opponent
1 White Win JPN Ono Takayuki 2351.77
2 White Loss JPN Nakayama Tomoharu 2549.79
3 Black Loss JPN Yamaguchi Yusui 2563.52
4 Black Loss JPN Nagasoe Hiroki 2462.29
5 White Loss JPN Fukui Nobuhiro 2464.10
6 Black Loss JPN Nakamura Shigeru 2798.40
7 White Loss JPN Okabe Hiroshi 2635.44
8 Black Win JPN Hasegawa Kazuto 2512.28
9 White Loss JPN Matsuura Hiroshi 2290.32
50 Meijinsen Qualification Kansai area 2nd round
Date 2012-06-17 Rating 2408.70
Round Color Result Opponent
1 White Win JPN Sakamoto Hirouji 2255.97
2 White Loss JPN Kise Katsumi 2472.72
3 Black Win JPN Hasegawa Kazuto 2506.34
7th Kansai Championship 2nd round
Date 2012-02-19 Rating 2411.41
Round Color Result Opponent
1 Black Win JPN Sakamoto Hirouji 2260.04
2 White Win JPN Hata Masayuki 2161.35
3 Black Loss JPN Kise Katsumi 2476.07
7th All Japan Championship
Date 2012-01-29 Rating 2411.76
Round Color Result Opponent
1 Black Win JPN Tada Ayako 2213.14
2 Black Win JPN Mitsumori Masao 2299.60
3 White Win JPN Sakamoto Hirouji 2262.38
4 White Draw JPN Nakayama Tomoharu 2526.32
5 White Loss JPN Nakamura Shigeru 2792.75
6 White Loss JPN Kudomi Takahiro 2344.50
43 Kyoto Classified Tournament
Date 2011-11-13 Rating 2411.09
Round Color Result Opponent
S1 White Loss JPN Sakamoto Hirouji 2268.52
S2 White Loss JPN Okumura Toyohiko 2275.25
S3 White Loss JPN Mano Yoshihisa 2185.40
S4 Black Win JPN Doi Manabu 2005.79
S5 White Win JPN Kubo Izumi 2033.50
49th Meijinsen Tournament
Date 2011-09-19 Rating 2418.68
Round Color Result Opponent
1 Black Win JPN Sakashita Shoichi 2079.80
2 White Win JPN Kashihara Akihiko 2197.98
3 Black Loss JPN Matsuura Hiroshi 2297.99
4 Black Draw JPN Nakayama Tomoharu 2505.01
5 Black Draw JPN Hasegawa Kazuto 2493.88
6 Black Win JPN Kubo Izumi 2038.80
7 Black Loss JPN Okabe Hiroshi 2627.11
8 White Loss JPN Yamaguchi Yusui 2561.42
9 White Win JPN Miyoshi Takeo 2097.82
World Championship BT
Date 2011-08-06 Rating 2426.05
Round Color Result Opponent
1 White Loss RUS Nikonov Konstantin 2556.64
2 White Win RUS Rachitskaya Viktoria 2194.71
3 Black Win EST Staub Rain 1864.57
4 White Win JPN Ono Takayuki 2331.94
5 White Loss EST Pajuste Renee 2402.90
6 Black Win EST Hõbemägi Martin 2341.40
7 Black Win RUS Karasyov Maxim 2557.90
8 White Win JPN Nakayama Tomoharu 2498.74
9 White Draw RUS Potapov Alexey 2535.99
49 Meijinsen Qualification Kansai area 2nd round
Date 2011-06-19 Rating 2428.46
Round Color Result Opponent
1 White Win JPN Kubo Izumi 2043.89
2 Black Draw JPN Kashihara Akihiko 2194.62
3 White Win JPN Kise Katsumi 2470.05
6th All Japan Championship
Date 2011-03-27 Rating 2430.40
Round Color Result Opponent
1 White Win JPN Miyoshi Takeo 2085.45
2 White Win JPN Kon Akira 1950.18
3 White Draw JPN Hasegawa Kazuto 2520.89
4 White Loss JPN Okabe Hiroshi 2617.25
5 White Loss JPN Tamada Yoichi 2430.75
6 White Win JPN Kawano Takahisa 2283.39
6th Kansai Championship final match
Date 2011-03-20 Rating 2430.64
Round Color Result Opponent
1 White Loss JPN Oosumi Yuuki 2659.22
2 White Loss JPN Oosumi Yuuki 2659.22
48th Meijinsen Tournament
Date 2010-09-20 Rating 2442.48
Round Color Result Opponent
1 White Win JPN Sakamoto Hirouji 2255.46
2 White Win JPN Tamada Yoichi 2414.87
3 Black Win JPN Matsuura Hiroshi 2281.77
4 White Draw JPN Okabe Hiroshi 2609.82
5 White Draw JPN Kawano Takahisa 2261.27
6 White Win JPN Ishitani Shin-ichi 2314.87
7 Black Loss JPN Yamaguchi Yusui 2508.31
8 White Win JPN Koiso Shigemasa 2098.46
9 White Loss JPN Oosumi Yuuki 2626.58
Team World Championship
Date 2010-05-05 Rating 2443.69
Round Color Result Opponent
3 White Win RUS Artemyev Sergey 2536.99
4 Black Loss EST Purk Andry 2577.54
5 Black Win EST Väljataga Paul 2332.44
7 White Win AZE Eibatov Nizami 2269.01
10 White Loss RUS Sumarokov Evgeny 2465.53
5th Kansai Championship final match
Date 2010-03-28 Rating 2442.73
Round Color Result Opponent
1 White Win JPN Oosumi Yuuki 2585.87
2 White Win JPN Oosumi Yuuki 2585.87
5th All Japan Championship
Date 2010-03-21 Rating 2441.83
Round Color Result Opponent
1 White Win JPN Tadokoro Hosai 1872.60
2 Black Loss JPN Nakamura Shigeru 2754.95
3 Black Win JPN Maruta Hiroki 2036.01
4 White Win KOR Kim Chang-Su 2009.08
5 Black Loss JPN Yamaguchi Yusui 2496.04
6 White Loss JPN Shimoyama Takuma 2193.47
5th Kansai Championship 3rd round
Date 2010-02-14 Rating 2440.37
Round Color Result Opponent
1 Black Win JPN Hata Masayuki 2101.24
2 White Win JPN Hasegawa Kazuto 2587.24
3 White Win JPN Sagara Takashi 2390.47
13th Mikami Cup Tournament
Date 2010-01-31 Rating 2438.49
Round Color Result Opponent
S1 Black Win JPN Suzuki Junichiro 1872.28
S2 White Loss JPN Nakamura Shigeru 2754.62
S3 Black Loss JPN Kataoka Mitsuaki 2152.49
S4 White Draw JPN Nagao Noriaki 2337.41
S5 Black Win JPN Ono Takayuki 2315.45
5th Kansai Championship 2nd round
Date 2009-11-15 Rating 2432.42
Round Color Result Opponent
1 Black Loss JPN Koiso Shigemasa 2103.42
2 Black Win JPN Sakamoto Hirouji 2222.63
3 Black Win JPN Kon Akira 1926.90
4 Black Win JPN Miyagawa Junzo 2137.71
41 Kyoto Classified Tournament
Date 2009-11-08 Rating 2432.10
Round Color Result Opponent
S1 Black Loss JPN Hasegawa Kazuto 2596.08
S2 White Win JPN Sakamoto Hirouji 2221.92
S3 White Win JPN Kudomi Takahiro 2302.83
S4 White Win JPN Okabe Hiroshi 2585.99
S5 Black Loss JPN Okumura Toyohiko 2287.19
47th Meijinsen tournament
Date 2009-09-22 Rating 2428.92
Round Color Result Opponent
1 White Win JPN Tamura Kazumasa 2428.73
2 White Win JPN Yamaguchi Yusui 2482.25
3 Black Loss JPN Kawamura Norihiko 2552.45
4 Black Win JPN Kataoka Mitsuaki 2144.26
5 White Loss JPN Oosumi Yuuki 2567.34
6 White Draw JPN Ishitani Shin-ichi 2292.46
7 White Win JPN Matsuura Hiroshi 2247.54
8 White Loss JPN Okabe Hiroshi 2582.43
9 White Win JPN Sakamoto Hirouji 2216.10
The 6th Shanghai Renju Meijin Invitation Tournament
Date 2009-05-03 Rating 2412.93
Round Color Result Opponent
1 White Draw JPN Oosumi Yuuki 2560.91
2 Black Loss CHN Gu Wei 2455.46
3 Black Loss CHN Li Yi 2607.35
4 Black Loss CHN Yu Manjiang 2443.96
5 Black Win CHN Xu Bin 2141.18
6 White Win JPN Mitsumori Masao 2278.61
7 White Draw JPN Isobe Taizan 2336.53
4th All Japan Championship
Date 2009-03-21 Rating 2409.88
Round Color Result Opponent
1 Black Win JPN Iwano Fumio 2141.69
2 White Loss JPN Tamura Kazumasa 2424.96
3 Black Loss JPN Tamada Yoichi 2260.70
4 Black Win JPN Tanizaki Ryusuke 2040.22
5 White Win JPN Sakamoto Hirouji 2206.10
6 White Draw JPN Ishitani Shin-ichi 2293.79
4 Kansai Championship 3rd round
Date 2009-02-15 Rating 2409.55
Round Color Result Opponent
1 White Loss JPN Tamura Kazumasa 2418.49
2 Black Loss JPN Oosumi Yuuki 2552.58
3 Black Loss JPN Takashima Junya 2426.90
4th Kansai Championship, 2nd round
Date 2008-11-16 Rating 2417.22
Round Color Result Opponent
1 Black Win JPN Sakamoto Hirouji 2197.63
2 Black Win JPN Miyagawa Junzo 2153.38
3 White Draw JPN Tamura Kazumasa 2403.08
4 White Loss JPN Takashima Junya 2425.98
46th Meijinsen Tournament
Date 2008-09-15 Rating 2422.94
Round Color Result Opponent
1 White Win JPN Matsuura Hiroshi 2205.93
2 Black Win JPN Oosumi Yuuki 2512.71
3 Black Loss JPN Okabe Hiroshi 2570.88
4 Black Win JPN Yamaguchi Yusui 2480.94
5 Black Win JPN Kataoka Mitsuaki 2114.27
6 Black Win JPN Hata Masayuki 2186.70
7 White Loss JPN Sato Kiyotomi 2308.36
8 Black Draw JPN Ishitani Shin-ichi 2281.25
9 Black Loss JPN Kawamura Norihiko 2565.27
46th Meijinsen Qualification Kansai area 2nd round
Date 2008-06-15 Rating 2429.23
Round Color Result Opponent
1 Black Draw JPN Miyagawa Junzo 2162.49
2 Black Win JPN Sakamoto Hirouji 2200.41
3 White Loss JPN Hata Masayuki 2198.47
Team World Championship
Date 2008-05-02 Rating 2435.18
Round Color Result Opponent
1 Black Draw CZE Laube Pavel 2376.36
2 White Win RUS Artemyev Sergey 2546.20
3 Black Win CHN Cao Dong 2588.26
4 White Loss SWE Karlsson Stefan 2500.05
5 White Loss RUS Sushkov Vladimir 2661.57
7 Black Win EST Taimla Tunnet 2691.32
8 White Draw FIN Saarenpää Samuli 2329.00
9 Black Win UKR Piddubny Konstantin 2166.18
3rd Kansai Championship 3rd round
Date 2008-01-13 Rating 2437.85
Round Color Result Opponent
1 White Win JPN Takagawa Teiji 2167.89
2 White Win JPN Tamura Kazumasa 2352.21
3 White Loss JPN Oosumi Yuuki 2481.76
The 45th Meijin-sen Tournament
Date 2007-09-17 Rating 2439.69
Round Color Result Opponent
1 White Loss JPN Isobe Taizan 2323.06
2 Black Loss JPN Miyoshi Takeo 2184.95
3 Black Loss JPN Okabe Hiroshi 2520.11
4 White Win JPN Matsuura Hiroshi 2183.27
5 White Win JPN Kawamura Norihiko 2542.70
6 Black Win JPN Sato Kiyotomi 2260.16
7 Black Win JPN Hiwatashi Kikuma 1807.66
8 White Draw JPN Oosumi Yuuki 2461.09
9 White Win JPN Yamaguchi Yusui 2533.09
World Championship AT
Date 2007-08-15 Rating 2440.40
Round Color Result Opponent
1 White Draw EST Oll Aivo 2563.60
2 Black Loss JPN Okabe Hiroshi 2514.10
3 Black Loss JPN Yamaguchi Yusui 2535.28
4 White Loss CHN Wu Di 2609.95
5 Black Loss EST Taimla Tunnet 2661.56
6 Black Win RUS Kozhin Mikhail 2501.33
7 Black Loss RUS Sushkov Vladimir 2655.38
8 White Loss RUS Savrasova Yulia 2572.43
9 White Win EST Purk Andry 2533.35
10 White Draw RUS Chingin Konstantin 2687.58
11 White Loss SWE Karlsson Stefan 2504.51
World Championship QT
Date 2007-08-08 Rating 2440.82
Round Color Result Opponent
1 Black Win JPN Ishitani Shin-ichi 2259.13
2 White Win ARM Poghosyan Albert 2299.99
3 White Draw JPN Okabe Hiroshi 2513.43
4 Black Win SWE Jonsson Peter 2258.84
5 Black Win CHN Qiu Yunfei 2399.71
6 White Win TPE Lin Huang-Yu 2445.35
7 White Win SWE Andersson Tord 2266.72
45th Meijinsen Qualification Kansai area final round
Date 2007-06-17 Rating 2435.64
Round Color Result Opponent
1 Black Win JPN Hata Masayuki 2194.43
2 Black Loss JPN Sakamoto Hirouji 2197.88
3 Black Win JPN Oosumi Yuuki 2434.36
2nd All Japan Championship (WC Qualification)
Date 2007-03-25 Rating 2427.89
Round Color Result Opponent
1 Black Loss JPN Ono Takayuki 2294.34
2 Black Win JPN Tanizaki Ryusuke 2048.93
4 White Loss JPN Isobe Taizan 2313.45
2nd Kansai Championship, Final Match
Date 2007-03-18 Rating 2427.89
Round Color Result Opponent
1 White Loss JPN Hasegawa Kazuto 2652.04
2 Black Loss JPN Hasegawa Kazuto 2652.04
2nd Kansai Championship 3rd round
Date 2007-01-14 Rating 2429.90
Round Color Result Opponent
1 Black Win JPN Oosumi Yuuki 2386.69
2 White Win JPN Sagara Takashi 2394.47
3 Black Draw JPN Takashima Junya 2393.79
2nd Kansai Championship 2nd round
Date 2006-10-15 Rating 2427.17
Round Color Result Opponent
1 Black Loss JPN Oosumi Yuuki 2362.92
2 Black Win JPN Doi Manabu 2008.63
3 Black Win JPN Ozawa Tetsushi 2034.19
4 Black Win JPN Takagawa Teiji 2203.90
The 44th Meijin-sen Tournament
Date 2006-09-18 Rating 2426.76
Round Color Result Opponent
1 White Draw JPN Nagao Noriaki 2228.63
2 White Loss JPN Okabe Hiroshi 2481.83
3 Black Loss JPN Kawamura Norihiko 2568.83
4 White Loss JPN Yamaguchi Yusui 2513.55
5 Black Win JPN Ishitani Shin-ichi 2242.26
6 Black Win JPN Oosumi Yuuki 2354.71
7 Black Win JPN Fujii Naoki 1976.62
8 White Win JPN Matsuura Hiroshi 2185.16
9 White Win JPN Sato Kiyotomi 2279.37
Asian Championship
Date 2006-08-15 Rating 2426.59
Round Color Result Opponent
1 White Draw JPN Kashihara Akihiko 2222.16
2 Black Win KOR Lee Jo-Sub 2286.43
3 Black Win JPN Oosumi Yuuki 2346.39
4 White Draw JPN Yamaguchi Yusui 2510.06
5 Black Win KOR Park Jeong Ho 2310.87
6 Black Loss KOR Kim Chang-Hoon 2452.54
7 Black Win JPN Ishitani Shin-ichi 2242.69
8 White Loss JPN Okabe Hiroshi 2479.63
Meijin-sen Qual, Kansai-Hokuriku area final round
Date 2006-06-18 Rating 2425.20
Round Color Result Opponent
1 Black Win JPN Oosumi Yuuki 2335.06
2 White Win JPN Takashima Junya 2378.60
3 White Win JPN Hata Masayuki 2202.35
Meijin-sen Qual, Kansai area 1st round
Date 2006-05-14 Rating 2421.69
Round Color Result Opponent
1 White Win JPN Okuda Shingo 1861.00
2 White Win JPN Hata Masayuki 2202.78
3 Black Win JPN Takagawa Teiji 2213.36
4 Black Win JPN Matsui Tsunehiro 2125.28
Team World Championship
Date 2006-05-05 Rating 2420.36
Round Color Result Opponent
1 White Loss FIN Pellikka Marko 2226.71
2 White Loss SWE Andersson Tord 2252.47
3 White Draw EST Oll Aivo 2546.66
4 Black Win RUS Skuridin Alexey 2333.73
5 Black Win CHN Ge Lingfeng 2303.92
6 White Loss RUS Savrasova Yulia 2543.31
7 White Win EST Sulane Sander 2019.51
F1 White Loss SWE Gaulitz Joachim 2370.02
F2 White Win SWE Andersson Tord 2252.47
1st Kansai Championship 2nd round
Date 2005-10-16 Rating 2407.41
Round Color Result Opponent
1 Black Win JPN Adachi Yasuhiro 1789.37
2 Black Win JPN Hata Masayuki 2189.84
3 White Draw JPN Takagawa Teiji 2225.83
4 Black Loss JPN Hasegawa Kazuto 2615.04
World Championship QT
Date 2005-07-31 Rating 2403.72
Round Color Result Opponent
1 Black Win JPN Oosumi Yuuki 2299.21
4 Black Win RUS Kozhin Mikhail 2477.07
5 Black Draw JPN Yamaguchi Yusui 2462.13
6 White Loss RUS Sushkov Vladimir 2596.17
7 White Win EST Ilu Timo 2417.77
43rd Meijinsen Qualification: Kansai area 1st round
Date 2005-05-08 Rating 2391.50
Round Color Result Opponent
1 White Win JPN Matsui Tsunehiro 2130.82
2 Black Win JPN Iwata Akihisa 2142.62
3 White Loss JPN Takashima Junya 2338.76
4 Black Loss JPN Tamura Kazumasa 2313.71
The 42nd Meijin-sen Tournament
Date 2004-09-20 Rating 2371.90
Round Color Result Opponent
1 White Win JPN Okabe Hiroshi 2421.99
2 White Loss JPN Kawamura Norihiko 2593.27
3 Black Win JPN Sakashita Shoichi 2115.87
4 White Loss JPN Ishitani Shin-ichi 2261.43
5 White Loss JPN Hasegawa Kazuto 2573.61
6 White Win JPN Saito Koji 2076.30
7 Black Loss JPN Sakamoto Hirouji 2148.37
8 White Loss JPN Matsuura Hiroshi 2246.66
9 White Win JPN Takagawa Teiji 2236.21
Team World Championship
Date 2004-05-05 Rating 2373.89
Round Color Result Opponent
1 Black Loss SWE Karlsson Stefan 2428.34
2 White Win BLR Degtyar Felix 1980.68
3 Black Loss EST Meritee Ando 2727.00
4 White Win UZB Khramov Andrey 2173.34
6 Black Win UKR Piddubny Konstantin 2085.30
7 Black Loss RUS Salnikov Pavel 2464.16
8 Black Loss RUS Kareyev Vladislav 2495.79
9 Black Draw RUS Sushkov Vladimir 2575.48
41st Meijin-sen Tournament
Date 2003-09-15 Rating 2385.68
Round Color Result Opponent
1 White Win JPN Matsuura Hiroshi 2253.29
2 White Win JPN Miyagawa Junzo 2084.94
3 White Win JPN Takashima Junya 2200.60
4 White Loss JPN Kuga Akio 2264.66
5 White Loss JPN Hasegawa Kazuto 2536.28
6 Black Win JPN Kudomi Takahiro 2283.82
7 White Win JPN Ishitani Shin-ichi 2262.02
8 White Win JPN Isobe Taizan 2212.69
9 White Win JPN Okabe Hiroshi 2398.70
World Championship AT
Date 2003-08-08 Rating 2384.11
Round Color Result Opponent
1 White Draw JPN Yamaguchi Yusui 2471.62
2 White Loss EST Taimla Tunnet 2572.68
3 White Draw JPN Okabe Hiroshi 2397.57
4 White Loss RUS Chingin Konstantin 2601.09
5 White Loss EST Meritee Ando 2712.00
6 White Loss RUS Sinyov Igor 2485.03
7 White Draw SWE Karlsson Stefan 2426.72
8 White Win SWE Gaulitz Joachim 2313.99
9 White Win SWE Andersson Tord 2266.57
10 Black Win SWE Carlsson Martin 2276.67
11 Black Loss RUS Sushkov Vladimir 2579.26
World Championship QT
Date 2003-07-31 Rating 2383.74
Round Color Result Opponent
1 Black Win JPN Mitsumori Masao 2240.19
2 White Draw RUS Karasyov Maxim 2397.57
3 White Draw JPN Yamaguchi Yusui 2472.53
4 White Win TPE Chang Yi-Feng 2298.56
5 White Win JPN Ishitani Shin-ichi 2261.92
6 White Win AZE Eibatov Nizami 2281.56
7 White Draw RUS Sushkov Vladimir 2578.77
40th Meijin-sen Tournament
Date 2002-09-16 Rating 2326.89
Round Color Result Opponent
1 Black Loss JPN Takagawa Teiji 2248.08
2 Black Loss JPN Ishitani Shin-ichi 2263.89
3 Black Win JPN Okabe Hiroshi 2342.30
4 White Draw JPN Isobe Taizan 2225.93
5 White Loss JPN Hasegawa Kazuto 2519.69
6 White Loss JPN Yamaguchi Yusui 2487.69
7 Black Win JPN Nishimura Toshio 2222.87
8 Black Win JPN Kudomi Takahiro 2294.56
9 Black Win JPN Matsuura Hiroshi 2194.15
40th Meijinsen Qualification: Kansai-Hokuriku 2nd Round
Date 2002-06-16 Rating 2311.99
Round Color Result Opponent
1 White Win JPN Miyagawa Sou 1868.67
2 Black Win JPN Sakamoto Hirouji 2141.92
3 White Win JPN Ikeshima Wakio 1874.10
4 Black Draw JPN Miyagawa Junzo 2078.82
5 Black Draw JPN Takagawa Teiji 2247.42
Team World Championship
Date 2002-05-03 Rating 2304.76
Round Color Result Opponent
1 Black Loss EST Taimla Tunnet 2449.42
2 Black Loss RUS Dvoeglazov Vladimir 2252.75
3 Black Win UKR Drozd Olexandr 2155.17
4 White Loss SWE Carlsson Martin 2211.18
5 Black Loss SWE Gardstrom Petter 2382.18
6 White Win KOR Lee Yun-Sub 1972.92
7 White Loss RUS Semyonov Vladimir 2297.05
8 White Loss SWE Carlsson Martin 2211.18
9 White Win SWE Carlsson Martin 2211.18
The 39th Meijin-sen Tournament
Date 2001-09-24 Rating 2305.28
Round Color Result Opponent
1 White Loss JPN Kudomi Takahiro 2298.14
2 Black Win JPN Hayakawa Yoshimi 2350.27
3 White Win JPN Takagawa Teiji 2243.73
4 White Win JPN Maruyama Yasushi 2111.00
5 White Draw JPN Yamaguchi Yusui 2456.88
6 White Loss JPN Nishimura Toshio 2245.74
7 White Win JPN Matsuura Hiroshi 2175.98
8 White Loss JPN Nara Hideki 2460.05
9 White Loss JPN Hasegawa Kazuto 2505.67
World Championship BT
Date 2001-08-12 Rating 2304.98
Round Color Result Opponent
1 White Win JPN Tatsutomi Hiroyuki 2078.55
2 Black Win RUS Chernov Sergey 2210.49
3 Black Win JPN Ono Takayuki 2162.84
4 White Loss JPN Hasegawa Kazuto 2505.31
5 White Win UZB Khramov Andrey 2140.38
6 White Win JPN Sakamoto Hirouji 2156.79
7 White Loss JPN Kusajima Masato 2250.78
8 White Win JPN Kudomi Takahiro 2295.63
32-nd Kyoto Classified - Special class
Date 2000-11-12 Rating 2280.12
Round Color Result Opponent
1 White Loss JPN Nara Hideki 2481.88
2 Black Win JPN Sakamoto Hirouji 2160.60
3 Black Loss JPN Hasegawa Kazuto 2508.87
4 Black Win JPN Koiso Shigemasa 1970.53
38th Meijinsen Tournament
Date 2000-10-01 Rating 2276.20
Round Color Result Opponent
1 White Win JPN Fujinami Hisao 2122.24
2 Black Loss JPN Kudomi Takahiro 2276.02
3 White Loss JPN Hasegawa Kazuto 2509.41
4 White Loss JPN Arai Yutaka 2069.11
5 White Win JPN Nishizono Norio 2302.02
6 Black Draw JPN Hayakawa Yoshimi 2362.31
7 White Loss JPN Maruyama Yasushi 2115.51
8 Black Loss JPN Nara Hideki 2484.07
9 Black Win JPN Kusajima Masato 2224.32
Meijinsen Qualification: Kansai-Hokuriku 2nd Round
Date 2000-06-19 Rating 2274.59
Round Color Result Opponent
1 White Win JPN Sakamoto Hirouji 2166.26
2 White Loss JPN Hayakawa Yoshimi 2374.30
3 White Win JPN Takehara Kenji 1773.69
38th Meijinsen Qualification: Kansai area 1st Round
Date 2000-05-21 Rating 2274.05
Round Color Result Opponent
1 White Win JPN Tatsutomi Hiroyuki 2058.98
2 White Loss JPN Hayakawa Yoshimi 2376.86
3 Black Win JPN Matsui Tsunehiro 2166.11
4 White Win JPN Iwata Akihisa 2146.26