Okabe Hiroshi (岡部寛)

Place: Tokyo, Japan

Birth: 1985-12-14

Rating: 2710.45, Std: 65.24, Rank: 20

First game: 2000-05-14, Last game: 2025-10-13

Top rating: 2761.87 (2014-01-26)

Games: 1145, Wins: 675, Draws: 233, Losses: 237

Gy1: 53, Gy2: 93, Gy5: 200

63rd Meijinsen Tournament
Date	2025-10-13		Rating	2710.45
Round	Color	Result	Opponent
1	Black	Draw	Nakayama Tomoharu	2796.74
2	Black	Draw	Matsuda Shoma	2617.73
3	White	Draw	Kuga Akio	2465.39
4	Black	Win	Kawano Takahisa	2551.36
5	White	Win	Mano Yoshihisa	2261.36
6	Black	Win	Takashima Junya	2446.97
7	White	Loss	Tachi Masaya	2500.80
8	White	Win	Makino Mitsunori	2684.08
9	Black	Loss	Wang Qingqing	2720.68
World Championship 2025, AT
Date	2025-08-15		Rating	2714.18
Round	Color	Result	Opponent
1	Black	Draw	He Shujun	2684.06
2	White	Draw	Oll Aivo	2624.84
3	White	Draw	Nakayama Tomoharu	2796.63
4	White	Draw	Cao Dong	2813.21
5	Black	Draw	Kamiya Shunsuke	2848.23
6	White	Loss	Gromov Danila	2618.74
7	White	Win	Mesila Villem	2556.08
8	Black	Draw	Mei Fan	2719.68
9	White	Win	Li Xiaoqing	2682.14
10	White	Loss	Ni Zhongxing	2825.40
11	White	Draw	Lu Hai	2600.19
42nd Kanto Championship
Date	2025-06-28		Rating	2717.85
Round	Color	Result	Opponent
1	Black	Win	Maruta Hiroki	2279.52
2	Black	Win	Ono Takayuki	2419.93
3	Black	Win	Tachi Masaya	2507.39
4	White	Draw	Matsuda Shoma	2615.43
5	White	Win	Ishitani Shin-ichi	2377.44
6	White	Draw	Yoshikawa Tomoki	2324.40
ex	Black	Draw	Matsuda Shoma	2615.43
19th All Japan Championship
Date	2025-06-28		Rating	2717.85
Round	Color	Result	Opponent
1	White	Win	Tanaka Shotaro	2348.06
2	White	Win	Fujita Maiko	2479.21
3	Black	Draw	Matsuda Shoma	2615.43
4	White	Draw	Kamiya Shunsuke	2849.20
5	Black	Draw	Nakayama Tomoharu	2793.45
6	Black	Win	Tachi Masaya	2507.39
16th Tohoku Championship
Date	2025-03-09		Rating	2719.32
Round	Color	Result	Opponent
1	White	Win	Kusajima Masato	2204.06
2	Black	Win	Miyamoto Syunju	2299.96
3	Black	Win	Fujita Maiko	2464.34
4	Black	Win	Shimura Hiroki	2233.55
5	Black	Draw	Kawaai Hitoshi	2065.89
28th New Year (Mikami) Cup
Date	2025-01-19		Rating	2720.52
Round	Color	Result	Opponent
S1	Black	Loss	Fujita Maiko	2458.90
S2	White	Loss	Inoue Fumiya	2519.44
S4	Black	Win	Ishitani Shin-ichi	2397.63
S5	Black	Win	Kawamura Norihiko	2478.96
25 Kanto Renju Emperor Tournament Final round
Date	2024-12-08		Rating	2727.35
Round	Color	Result	Opponent
1	Black	Win	Miyamoto Syunju	2304.56
2	White	Win	Ono Takayuki	2417.42
3	Black	Draw	Wang Qingqing	2690.33
4	White	Loss	Inoue Fumiya	2514.69
5	Black	Win	Kamiya Shunsuke	2851.56
6	Black	Win	Matsuda Shoma	2540.07
7	White	Draw	Fujita Maiko	2453.88
62nd Meijinsen match R3-4
Date	2024-11-24		Rating	2729.64
Round	Color	Result	Opponent
3	Black	Draw	Kamiya Shunsuke	2851.92
4	Black	Draw	Kamiya Shunsuke	2851.92
62nd Meijinsen match R1-2
Date	2024-11-04		Rating	2732.16
Round	Color	Result	Opponent
1	Black	Loss	Kamiya Shunsuke	2852.91
2	White	Draw	Kamiya Shunsuke	2852.91
62nd Meijinsen Tournament
Date	2024-10-14		Rating	2735.18
Round	Color	Result	Opponent
1	White	Win	Kawano Takahisa	2541.39
2	Black	Win	Inoue Fumiya	2511.43
3	White	Win	Matsuda Shoma	2518.19
4	Black	Win	Yamane Tomohiro	2061.43
5	White	Draw	Makino Mitsunori	2660.92
6	Black	Win	Tachi Masaya	2585.11
7	White	Win	Ishitani Shin-ichi	2409.71
8	Black	Draw	Nakayama Tomoharu	2781.32
9	White	Win	Kuga Akio	2430.12
41st Kanto Championship
Date	2024-07-21		Rating	2735.69
Round	Color	Result	Opponent
1	White	Win	Suenaga Daiki	2134.56
2	Black	Win	Fujita Maiko	2429.33
3	White	Win	Inoue Fumiya	2502.66
4	White	Win	Matsuda Shoma	2506.15
5	Black	Win	Takazawa Nagayoshi	2233.65
6	White	Draw	Ishitani Shin-ichi	2414.92
Team World Championship 2024
Date	2024-05-04		Rating	2733.70
Round	Color	Result	Opponent
6	White	Win	Lee Chi Son	2275.12
7	Black	Win	Gromov Danila	2579.32
8	Black	Win	Liu Qin	2573.10
9	Black	Win	Wu Di	2708.24
18th All Japan Championship
Date	2024-02-12		Rating	2721.53
Round	Color	Result	Opponent
1	Black	Loss	Tanaka Shotaro	2323.83
2	White	Win	Suzuki Yoshitaka	1998.52
3	Black	Loss	Miyamoto Syunju	2349.88
4	White	Win	Kato Yasuhiro	2041.42
5	Black	Win	Ishitani Shin-ichi	2412.62
6	White	Draw	Tachi Masaya	2608.64
27th New Year (Mikami) Cup
Date	2024-01-14		Rating	2722.97
Round	Color	Result	Opponent
S1	Black	Win	Ono Takayuki	2423.78
S2	Black	Win	Fujita Maiko	2416.43
S3	Black	Win	Ishitani Shin-ichi	2415.21
S4	Black	Draw	Inoue Fumiya	2508.59
S5	White	Win	Tanaka Shotaro	2322.50
24 Kanto Renju Emperor Tournament 2nd round
Date	2023-12-10		Rating	2723.69
Round	Color	Result	Opponent
1	Black	Draw	Nakayama Tomoharu	2781.41
2	Black	Win	Inoue Fumiya	2507.42
3	White	Win	Miyamoto Syunju	2334.10
4	White	Loss	Kamiya Shunsuke	2860.15
5	White	Win	Makino Mitsunori	2641.84
24 Kanto Renju Emperor Tournament Kanto area 1st round
Date	2023-11-19		Rating	2723.02
Round	Color	Result	Opponent
1	White	Win	Matsuda Shoma	2422.44
2	Black	Draw	Wang Qingqing	2665.23
3	White	Win	Ono Takayuki	2430.75
4	Black	Draw	Nakayama Tomoharu	2782.14
ex	White	Win	Maruta Hiroki	2245.51
61st Meijinsen match R3
Date	2023-10-28		Rating	2721.41
Round	Color	Result	Opponent
3	Black	Loss	Kamiya Shunsuke	2860.05
61st Meijinsen match R1-2
Date	2023-10-15		Rating	2720.91
Round	Color	Result	Opponent
1	Black	Loss	Kamiya Shunsuke	2859.57
2	White	Loss	Kamiya Shunsuke	2859.57
61st Meijinsen Tournament
Date	2023-09-18		Rating	2721.73
Round	Color	Result	Opponent
1	Black	Draw	Kawano Takahisa	2548.63
2	White	Win	Tachi Masaya	2591.29
3	Black	Win	Maruyama Yasushi	2253.01
4	White	Win	Matsuda Shoma	2407.06
5	White	Win	Fujita Maiko	2421.42
6	Black	Win	Makino Mitsunori	2633.06
7	Black	Win	Yamane Tomohiro	2085.25
8	Black	Draw	Hasegawa Kazuto	2558.63
9	Black	Win	Nakayama Tomoharu	2783.41
World Championship 2023, AT
Date	2023-08-12		Rating	2717.87
Round	Color	Result	Opponent
1	Black	Loss	Epifanov Dmitry	2668.90
2	White	Win	Inoue Fumiya	2523.60
3	Black	Win	Ni Zhongxing	2747.77
4	Black	Win	Burtsev Nikolai	2528.24
5	White	Loss	Nakayama Tomoharu	2785.60
6	White	Win	Kamiya Shunsuke	2852.80
7	White	Draw	Pinsky Alexander	2627.57
8	Black	Win	Lee Ho June	2439.83
9	Black	Draw	Lu Hai	2754.10
10	Black	Draw	Mei Fan	2762.10
11	Black	Draw	Cao Dong	2748.95
40th Kanto Championship
Date	2023-07-09		Rating	2710.73
Round	Color	Result	Opponent
1	Black	Win	Fujita Maiko	2425.61
2	Black	Loss	Makino Mitsunori	2627.14
3	White	Loss	Miyamoto Syunju	2308.25
4	White	Win	Tanaka Shotaro	2325.58
5	Black	Win	Takazawa Nagayoshi	2288.94
6	Black	Win	Ishitani Shin-ichi	2388.56
17th All Japan Championship
Date	2023-03-19		Rating	2700.27
Round	Color	Result	Opponent
1	White	Win	Miyamoto Syunju	2279.45
2	White	Win	Ishitani Shin-ichi	2377.82
3	Black	Draw	Kamiya Shunsuke	2861.35
4	White	Draw	Makino Mitsunori	2627.27
5	Black	Draw	Nakayama Tomoharu	2795.43
6	White	Draw	Tachi Masaya	2554.38
23 Kanto Renju Emperor Tournament 2nd round
Date	2023-01-29		Rating	2694.25
Round	Color	Result	Opponent
1	White	Loss	Inoue Fumiya	2534.61
2	White	Loss	Yokoyama Shota	2472.47
3	Black	Win	Kamiya Shunsuke	2859.90
4	White	Win	Fujita Maiko	2425.90
5	Black	Win	Maruta Koji	2175.15
26th New Year (Mikami) Cup
Date	2023-01-15		Rating	2693.39
Round	Color	Result	Opponent
S1	Black	Win	Takazawa Nagayoshi	2272.21
S2	Black	Draw	Inoue Fumiya	2534.75
S3	White	Win	Ono Takayuki	2428.68
S4	White	Loss	Ishitani Shin-ichi	2379.77
S5	Black	Draw	Tanaka Shotaro	2334.09
60th Meijinsen Tournament
Date	2022-09-19		Rating	2701.86
Round	Color	Result	Opponent
1	Black	Win	Kuga Akio	2414.41
2	Black	Win	Ono Takayuki	2424.97
3	White	Draw	Makino Mitsunori	2632.28
4	Black	Win	Miyamoto Syunju	2255.34
5	White	Win	Kawamoto Shoma	2329.64
6	Black	Win	Hasegawa Kazuto	2614.89
7	White	Loss	Nagasoe Hiroki	2658.44
8	White	Win	Ishitani Shin-ichi	2364.86
9	Black	Draw	Nakayama Tomoharu	2806.81
39 Kanto Championship
Date	2022-07-31		Rating	2702.71
Round	Color	Result	Opponent
1	Black	Win	Tanaka Shotaro	2314.15
2	Black	Win	Maruta Hiroki	2195.76
3	Black	Win	Ono Takayuki	2429.03
4	White	Win	Ishitani Shin-ichi	2362.94
5	White	Draw	Yokoyama Shota	2465.27
6	White	Win	Kato Yasuhiro	2069.40
22nd Kanto Renju Emperor Tournament Final
Date	2022-03-19		Rating	2702.41
Round	Color	Result	Opponent
1	Black	Loss	Kamiya Shunsuke	2864.37
2	Black	Draw	Kamiya Shunsuke	2864.37
3	White	Loss	Kamiya Shunsuke	2864.37
59th Meijinsen Tournament
Date	2022-01-10		Rating	2704.89
Round	Color	Result	Opponent
1	White	Win	Maruta Hiroki	2250.63
2	Black	Draw	Nakayama Tomoharu	2824.97
3	Black	Win	Maruyama Yasushi	2273.24
4	Black	Win	Ono Takayuki	2425.26
5	White	Win	Hayashi Shoichi	2157.18
6	Black	Win	Iio Yoshihiro	2400.68
7	White	Win	Nagasoe Hiroki	2659.18
8	White	Draw	Hasegawa Kazuto	2572.29
9	Black	Loss	Kamiya Shunsuke	2860.11
ex	White	Win	Nagasoe Hiroki	2659.18
22 Renju Emperor Tournament 2nd round
Date	2021-12-19		Rating	2703.09
Round	Color	Result	Opponent
1	Black	Win	Yokoyama Shota	2454.77
2	Black	Win	Maruta Hiroki	2257.75
3	White	Loss	Kamiya Shunsuke	2860.30
4	Black	Draw	Nagasoe Hiroki	2657.07
5	White	Draw	Shimura Hiroki	2108.02
13th Tohoku Championship
Date	2021-12-12		Rating	2702.95
Round	Color	Result	Opponent
1	White	Win	Miyamoto Syunju	2247.29
2	Black	Win	Fujita Maiko	2382.15
3	Black	Loss	Inoue Fumiya	2519.20
4	White	Win	Maruta Hiroki	2259.73
38 Kanto Championship
Date	2021-08-08		Rating	2706.98
Round	Color	Result	Opponent
1	White	Win	Suenaga Daiki	2260.14
2	White	Win	Ishitani Shin-ichi	2336.18
3	White	Loss	Kamiya Shunsuke	2851.71
4	Black	Loss	Inoue Fumiya	2506.79
5	White	Loss	Yokoyama Shota	2455.62
6	White	Win	Fujita Maiko	2355.46
16th All Japan Championship
Date	2021-03-28		Rating	2734.56
Round	Color	Result	Opponent
1	Black	Win	Suenaga Daiki	2267.73
2	Black	Win	Inoue Fumiya	2481.93
3	Black	Draw	Nakamura Shigeru	2954.74
4	White	Win	Fujita Maiko	2364.49
5	White	Win	Nagasoe Hiroki	2639.49
6	White	Win	Makino Mitsunori	2567.57
21th Kanto Renju Emperor Tournament Final
Date	2021-02-27		Rating	2736.44
Round	Color	Result	Opponent
1	White	Win	Makino Mitsunori	2564.74
2	Black	Win	Makino Mitsunori	2564.74
24th New Year(Mikami)Cup
Date	2021-01-29		Rating	2736.57
Round	Color	Result	Opponent
S1	Black	Win	Ono Takayuki	2394.29
S2	White	Win	Maruta Hiroki	2232.53
S3	Black	Win	Maruta Koji	2122.98
S4	White	Win	Ishitani Shin-ichi	2368.11
S5	Black	Draw	Makino Mitsunori	2561.04
12th Tohoku Championship
Date	2020-12-27		Rating	2736.44
Round	Color	Result	Opponent
	Black	Draw	Nakamura Shigeru	2954.17
21 Renju Emperor Tournament 2nd round
Date	2020-12-06		Rating	2735.71
Round	Color	Result	Opponent
1	White	Win	Shimura Hiroki	2004.36
2	White	Win	Ono Takayuki	2397.41
3	White	Draw	Nagasoe Hiroki	2625.18
4	Black	Win	Inoue Fumiya	2469.84
5	Black	Draw	Makino Mitsunori	2550.08
58 Meijinsen Tournament
Date	2020-09-21		Rating	2733.75
Round	Color	Result	Opponent
1	White	Win	Kamiya Shunsuke	2821.38
2	White	Loss	Makino Mitsunori	2523.55
3	White	Win	Nakayama Tomoharu	2839.23
4	Black	Win	Fujita Maiko	2374.34
5	Black	Win	Fujita Yudai	2483.54
6	White	Loss	Matsuura Hiroshi	2381.00
7	Black	Draw	Tamada Yoichi	2531.19
8	Black	Win	Tanaka Toshiki	2469.26
9	Black	Draw	Tachi Masaya	2485.94
37 Kanto Championship
Date	2020-08-10		Rating	2734.86
Round	Color	Result	Opponent
1	White	Win	Ito Midori	1791.09
2	Black	Win	Kato Yasuhiro	2090.32
3	White	Win	Ishitani Shin-ichi	2372.69
4	White	Win	Maruta Hiroki	2247.80
5	White	Win	Fujita Maiko	2374.60
6	Black	Win	Maruyama Takashi	2045.61
20th Kanto Renju Emperor Tournament Final
Date	2020-02-16		Rating	2733.11
Round	Color	Result	Opponent
1	Black	Loss	Nakamura Shigeru	2965.46
2	White	Loss	Nakamura Shigeru	2965.46
23 New Year (Mikami) Cup
Date	2020-01-26		Rating	2733.88
Round	Color	Result	Opponent
A1	Black	Win	Maruta Hiroki	2220.47
A2	White	Win	Iwano Fumio	2173.79
A3	Black	Loss	Nakamura Shigeru	2965.37
A4	White	Win	Fujita Maiko	2357.36
A5	White	Win	Ishitani Shin-ichi	2376.08
15th All Japan Championship
Date	2020-01-19		Rating	2734.06
Round	Color	Result	Opponent
1	Black	Win	Sakamoto Suzan	2271.59
2	White	Win	Nakamura Shigeru	2965.08
3	White	Win	Inoue Fumiya	2417.91
4	Black	Loss	Nakayama Tomoharu	2846.67
5	Black	Draw	Kamiya Shunsuke	2819.30
6	Black	Win	Iio Yoshihiro	2399.67
20 Renju Emperor Tournament 2nd round
Date	2019-12-08		Rating	2730.94
Round	Color	Result	Opponent
1	White	Win	Inoue Fumiya	2419.64
2	White	Loss	Fujita Maiko	2357.88
3	White	Draw	Nakamura Shigeru	2968.28
4	White	Win	Miyamoto Syunju	2301.50
5	White	Win	Ishitani Shin-ichi	2375.81
11th Tohoku Championship
Date	2019-10-06		Rating	2728.11
Round	Color	Result	Opponent
1	White	Win	Kusajima Masato	2244.08
2	White	Win	Miyamoto Syunju	2297.87
3	Black	Win	Hirono Masakazu	2082.59
4	White	Win	Ishitani Shin-ichi	2381.52
5	White	Win	Gakumazawa Hideaki	2139.75
57 Meijinsen Tournament
Date	2019-09-16		Rating	2726.52
Round	Color	Result	Opponent
1	White	Win	Matsuura Hiroshi	2363.37
2	White	Win	Ishitani Shin-ichi	2385.16
3	Black	Win	Inoue Fumiya	2420.17
4	Black	Draw	Kamiya Shunsuke	2824.55
5	Black	Win	Hasegawa Kazuto	2614.13
6	Black	Loss	Kawamura Norihiko	2669.55
7	White	Win	Nakayama Tomoharu	2826.77
8	Black	Loss	Koyama Jun	2608.70
9	White	Win	Kawano Takahisa	2462.31
World Championship 2019, AT
Date	2019-08-10		Rating	2721.79
Round	Color	Result	Opponent
1	White	Draw	Oll Aivo	2743.46
2	Black	Win	Inoue Fumiya	2424.21
3	Black	Win	Epifanov Dmitry	2672.62
4	White	Draw	Nakayama Tomoharu	2821.18
5	White	Win	Kamiya Shunsuke	2821.58
6	White	Loss	Koyama Jun	2614.62
7	White	Loss	Gardström Petter	2700.35
8	Black	Loss	Cao Dong	2782.89
9	White	Loss	Sushkov Vladimir	2840.09
10	White	Win	Fedotov Denis	2681.85
11	White	Win	Mei Fan	2706.02
36 Kanto Championship
Date	2019-07-28		Rating	2719.57
Round	Color	Result	Opponent
1	Black	Win	Fujikawa Masaki	2153.07
2	White	Win	Makino Mitsunori	2317.09
3	White	Loss	Nakamura Shigeru	2984.72
4	White	Win	Ono Takayuki	2398.96
5	White	Draw	Inoue Fumiya	2425.83
6	White	Win	Ishitani Shin-ichi	2390.01
14th All Japan Championship
Date	2019-03-31		Rating	2700.98
Round	Color	Result	Opponent
1	White	Win	Miyamoto Syunju	2275.24
2	White	Loss	Nakamura Shigeru	2996.12
3	White	Draw	Kamiya Shunsuke	2813.55
4	White	Win	Iio Yoshihiro	2451.72
5	White	Loss	Inoue Fumiya	2428.28
6	White	Win	Koyama Jun	2587.95
19th Kanto Renju Emperor Tournament Final
Date	2019-02-17		Rating	2695.41
Round	Color	Result	Opponent
1	Black	Loss	Nakamura Shigeru	2998.54
2	Black	Loss	Nakamura Shigeru	2998.54
22 New Year (Mikami) Cup
Date	2019-01-20		Rating	2692.62
Round	Color	Result	Opponent
1	White	Win	Inoue Fumiya	2412.76
2	White	Win	Tomobe Katsuhiro	2170.41
3	White	Win	Ono Takayuki	2401.28
4	Black	Draw	Ke Fang-Ying	2370.40
5	Black	Win	Takazawa Nagayoshi	2171.77
19 Renju Emperor Tournament 2nd round
Date	2018-12-09		Rating	2688.18
Round	Color	Result	Opponent
1	White	Win	Maruta Hiroki	2178.55
2	White	Win	Ishitani Shin-ichi	2419.81
3	Black	Loss	Nakamura Shigeru	3000.61
4	White	Win	Miyamoto Syunju	2270.23
5	White	Win	Iwano Fumio	2244.64
“SOPAI Cup” 1st World Renju Open
Date	2018-11-25		Rating	2686.33
Round	Color	Result	Opponent
1	White	Win	Tian Hanfa	1888.62
2	White	Loss	Wai Chan Keong	2754.30
3	Black	Loss	Sun Jinxue	2247.38
4	White	Win	Peng Lulu	2063.70
5	White	Loss	Hong Pengcheng	2394.88
6	Black	Loss	Cheng Yanzhen	2425.51
7	White	Win	Guo Haisen	2202.89
8	White	Loss	Lu Hai	2619.47
9	White	Win	Ling Shijie	2410.27
56 Meijinsen Tournament
Date	2018-09-17		Rating	2702.65
Round	Color	Result	Opponent
1	White	Win	Hasegawa Kazuto	2579.42
2	Black	Win	Kuga Akio	2429.09
3	Black	Loss	Koyama Jun	2573.12
4	White	Loss	Nakamura Shigeru	3000.73
5	Black	Win	Matsuura Hiroshi	2355.19
6	Black	Win	Kawamura Norihiko	2658.96
8	White	Win	Ishitani Shin-ichi	2430.11
9	Black	Win	Kamiya Shunsuke	2800.01
10th Tohoku Championship
Date	2018-09-09		Rating	2703.63
Round	Color	Result	Opponent
1	White	Win	Hirono Masakazu	2086.56
2	Black	Win	Miyamoto Syunju	2266.25
3	Black	Win	Demachi Koichiro	1925.61
5	Black	Win	Kusajima Masato	2301.67
35 Kanto Championship
Date	2018-07-16		Rating	2709.06
Round	Color	Result	Opponent
1	White	Win	Fujikawa Masaki	2104.14
2	White	Win	Inoue Fumiya	2396.99
3	White	Loss	Nakamura Shigeru	2994.78
4	White	Win	Fujita Maiko	2223.51
5	Black	Draw	Nakayama Tomoharu	2838.30
6	Black	Win	Ishitani Shin-ichi	2433.31
Team World Championship 2018
Date	2018-05-05		Rating	2712.86
Round	Color	Result	Opponent
2	White	Loss	Mesila Villem	2646.10
3	White	Win	Gardström Petter	2691.97
5	White	Win	Makarov Pavel	2600.49
6	Black	Loss	Cao Dong	2802.92
7	White	Loss	Kryuchok Roman	2600.87
8	Black	Win	Kozhin Mikhail	2686.40
10	White	Win	Mesila Villem	2646.10
13th All Japan Championship
Date	2018-01-28		Rating	2717.35
Round	Color	Result	Opponent
1	Black	Win	Fujita Yudai	2500.52
2	White	Loss	Nakayama Tomoharu	2852.99
3	Black	Win	Iio Yoshihiro	2538.47
4	White	Loss	Kamiya Shunsuke	2813.10
5	Black	Win	Ishitani Shin-ichi	2419.27
6	Black	Loss	Tachi Masaya	2558.12
21 Mikami Cup
Date	2018-01-21		Rating	2718.27
Round	Color	Result	Opponent
S1	Black	Win	Ono Takayuki	2384.56
S2	White	Win	Ishitani Shin-ichi	2417.52
S3	White	Win	Sato Kiyotomi	2435.48
18 Kanto Renju Emperor Tournament 2nd round
Date	2017-12-17		Rating	2721.11
Round	Color	Result	Opponent
1	Black	Win	Miyamoto Syunju	2274.63
2	White	Win	Kusajima Masato	2304.31
3	White	Win	Sato Kiyotomi	2438.06
4	White	Win	Koyama Jun	2587.71
5	Black	Loss	Nakamura Shigeru	2961.39
18 Kanto Renju Emperor Tournament 1st round
Date	2017-11-01		Rating	2722.62
Round	Color	Result	Opponent
1	Black	Win	Maruta Koji	2128.78
2	Black	Draw	Koyama Jun	2597.21
3	Black	Win	Kusajima Masato	2300.44
4	White	Win	Ishitani Shin-ichi	2396.07
55 Meijinsen Tournament
Date	2017-09-18		Rating	2723.72
Round	Color	Result	Opponent
1	White	Win	Sato Kiyotomi	2452.92
2	White	Win	Kawano Takahisa	2441.11
3	White	Win	Iio Yoshihiro	2550.69
4	Black	Loss	Kamiya Shunsuke	2812.36
5	Black	Win	Tamada Yoichi	2512.82
6	White	Win	Matsuura Hiroshi	2341.53
7	White	Loss	Nakayama Tomoharu	2845.80
8	White	Win	Hasegawa Kazuto	2600.37
9	Black	Win	Maruyama Yasushi	2284.32
World Championship 2017, BT
Date	2017-08-12		Rating	2722.03
Round	Color	Result	Opponent
1	White	Win	Liao Jun-Yen	2341.92
2	White	Loss	Huang Yen-Hua	2462.94
3	White	Win	Sun In	2435.85
4	Black	Loss	Liu Yang	2672.33
5	Black	Win	Metreveli Maksim	2314.54
6	Black	Win	Yang Yu-Hsiung	2436.06
7	White	Draw	Tang Kai Lam	2772.47
8	Black	Draw	Wai Chan Keong	2681.19
9	White	Win	Koyama Jun	2608.76
World Championship 2017, QT
Date	2017-08-05		Rating	2722.12
Round	Color	Result	Opponent
1	Black	Draw	Lu Wei-Yuan	2604.84
2	Black	Win	Kim Su Chan	2309.42
3	White	Draw	Lin Huang-Yu	2727.86
4	White	Draw	Lan Zhiren	2638.05
5	Black	Draw	Koyama Jun	2608.67
6	Black	Win	Oll Aivo	2795.99
7	Black	Loss	Sushkov Vladimir	2875.54
34 Kanto Championship
Date	2017-07-16		Rating	2722.44
Round	Color	Result	Opponent
1	White	Win	Fujikawa Masaki	2075.63
2	White	Win	Iwano Fumio	2268.15
3	White	Loss	Nakayama Tomoharu	2827.44
4	White	Win	Ono Takayuki	2380.50
5	White	Win	Ishitani Shin-ichi	2395.06
6	White	Win	Maruta Hiroki	2131.38
12th All Japan Championship
Date	2017-03-26		Rating	2723.91
Round	Color	Result	Opponent
1	Black	Win	Ono Takayuki	2369.22
2	White	Win	Sato Kiyotomi	2480.59
3	White	Draw	Nakayama Tomoharu	2795.77
4	Black	Loss	Nakamura Shigeru	2967.69
5	Black	Win	Fujita Yudai	2489.42
6	Black	Draw	Kamiya Shunsuke	2790.41
20 New Year (Mikami) Cup
Date	2017-01-22		Rating	2721.12
Round	Color	Result	Opponent
S1	Black	Win	Sato Kiyotomi	2493.59
S2	White	Win	Ishitani Shin-ichi	2395.71
S4	Black	Loss	Nakamura Shigeru	2965.96
S5	White	Win	Koyama Jun	2613.10
17 Kanto Renju Emperor Tournament 2nd round
Date	2016-12-10		Rating	2716.83
Round	Color	Result	Opponent
1	White	Draw	Sato Kiyotomi	2503.63
2	Black	Win	Maruta Koji	2164.41
3	Black	Win	Ishitani Shin-ichi	2400.66
4	White	Draw	Nakamura Shigeru	2961.01
5	White	Loss	Nakayama Tomoharu	2785.33
17 Kanto Renju Emperor Tournament 1st round
Date	2016-11-23		Rating	2715.50
Round	Color	Result	Opponent
1	Black	Win	Maruta Koji	2166.71
2	White	Win	Koyama Jun	2616.73
3	Black	Win	Ishitani Shin-ichi	2402.21
4	Black	Draw	Sato Kiyotomi	2504.73
48 Kyoto Classified Tournament
Date	2016-11-13		Rating	2714.42
Round	Color	Result	Opponent
SS2	Black	Loss	Hasegawa Kazuto	2641.37
SS3	White	Loss	Hata Masayuki	2203.35
SS4	White	Draw	Kawamura Norihiko	2630.43
SS5	White	Draw	Iio Yoshihiro	2556.63
54 Meijinsen Tournament
Date	2016-09-19		Rating	2719.96
Round	Color	Result	Opponent
1	White	Win	Maruyama Yasushi	2293.02
2	Black	Win	Matsuura Hiroshi	2363.40
3	Black	Win	Iio Yoshihiro	2563.05
4	Black	Loss	Kuga Akio	2371.26
5	White	Loss	Kamiya Shunsuke	2761.95
6	White	Win	Tanaka Toshiki	2446.64
7	White	Win	Hasegawa Kazuto	2641.43
8	White	Draw	Nakayama Tomoharu	2779.52
9	Black	Win	Koyama Jun	2620.65
33 Kanto Championship
Date	2016-07-31		Rating	2724.08
Round	Color	Result	Opponent
1	White	Win	Fujikawa Masaki	2107.38
2	White	Win	Maruta Koji	2180.74
3	White	Win	Koyama Jun	2624.93
4	Black	Draw	Nakayama Tomoharu	2778.38
5	Black	Win	Maruta Hiroki	2131.55
6	Black	Loss	Nakamura Shigeru	2956.89
54 Meijinsen Qualification East Japan area 2nd round
Date	2016-06-12		Rating	2726.31
Round	Color	Result	Opponent
1	Black	Win	Kamiya Shunsuke	2729.12
2	Black	Win	Mitsumori Masao	2355.80
3	Black	Win	Kusajima Masato	2269.18
4	White	Win	Tamada Yoichi	2570.90
5	Black	Draw	Koyama Jun	2631.43
19 Mikami Cup
Date	2016-03-13		Rating	2722.01
Round	Color	Result	Opponent
S1	White	Win	Kusajima Masato	2266.13
S2	White	Draw	Kamiya Shunsuke	2725.54
S3	White	Loss	Nakamura Shigeru	2942.71
S4	White	Win	Koyama Jun	2633.76
S5	Black	Win	Ono Takayuki	2330.29
11th All Japan Championship
Date	2016-01-11		Rating	2716.84
Round	Color	Result	Opponent
1	Black	Draw	Fujita Yudai	2448.57
2	White	Draw	Tamada Yoichi	2574.51
3	White	Loss	Koyama Jun	2639.08
4	Black	Win	Ishitani Shin-ichi	2398.06
5	Black	Win	Iio Yoshihiro	2541.03
6	Black	Draw	Nakayama Tomoharu	2779.96
16 Kanto Renju Emperor Tournament 2nd round
Date	2015-12-13		Rating	2716.47
Round	Color	Result	Opponent
1	Black	Draw	Nakayama Tomoharu	2778.11
2	White	Loss	Nakamura Shigeru	2925.69
3	White	Win	Koyama Jun	2643.26
4	White	Win	Ono Takayuki	2327.24
5	White	Loss	Sato Kiyotomi	2538.76
16 Kanto Renju Emperor Tournament 1st round
Date	2015-11-15		Rating	2717.31
Round	Color	Result	Opponent
1	White	Win	Kato Yasuhiro	2045.31
2	Black	Win	Ono Takayuki	2328.05
3	White	Loss	Koyama Jun	2643.81
4	White	Loss	Sato Kiyotomi	2535.82
47 Kyoto Classified Tournament
Date	2015-11-08		Rating	2718.48
Round	Color	Result	Opponent
S1	Black	Win	Tachi Masaya	2472.82
S2	Black	Win	Hasegawa Kazuto	2669.57
S3	Black	Win	Epifanov Dmitry	2716.68
S4	Black	Win	Kashihara Akihiko	2342.91
S5	White	Win	Sakamoto Suzan	2285.12
53 Meijinsen Tournament
Date	2015-09-22		Rating	2719.50
Round	Color	Result	Opponent
1	White	Win	Ishitani Shin-ichi	2393.76
2	Black	Loss	Hasegawa Kazuto	2674.50
3	White	Win	Matsuura Hiroshi	2400.80
4	White	Win	Tamada Yoichi	2584.71
5	White	Draw	Oosumi Yuuki	2774.92
6	Black	Loss	Kawamura Norihiko	2624.88
7	Black	Draw	Nakayama Tomoharu	2771.06
8	White	Loss	Iio Yoshihiro	2533.45
9	White	Draw	Koyama Jun	2637.17
World Championship 2015, AT
Date	2015-08-13		Rating	2726.24
Round	Color	Result	Opponent
1	Black	Win	Tang Kai Lam	2729.91
2	Black	Draw	Kamiya Shunsuke	2708.80
3	Black	Loss	Qi Guan	2804.90
4	White	Draw	Taimla Tunnet	2765.54
5	Black	Win	Salnikov Pavel	2642.80
6	Black	Win	Makarov Pavel	2597.20
7	White	Loss	Lan Zhiren	2646.49
8	Black	Win	Hõbemägi Martin	2653.11
9	Black	Draw	Fedorkin Oleg	2737.47
10	Black	Draw	Chen Ko-Han	2709.46
11	Black	Draw	Lin Huang-Yu	2795.64
Kanto Championship
Date	2015-07-20		Rating	2728.34
Round	Color	Result	Opponent
1	Black	Win	Nakamura Souta	2294.08
2	White	Win	Ishitani Shin-ichi	2400.11
3	White	Draw	Koyama Jun	2631.56
4	White	Draw	Nakayama Tomoharu	2764.96
5	Black	Loss	Nakamura Shigeru	2907.44
6	Black	Win	Iwano Fumio	2253.37
7th Tohoku Championship
Date	2015-04-12		Rating	2737.88
Round	Color	Result	Opponent
1	White	Win	Gakumazawa Hideaki	2191.97
2	White	Win	Kusajima Masato	2258.79
3	White	Win	Kobayashi Koichi	2295.23
4	White	Win	Ishitani Shin-ichi	2423.11
5	Black	Win	Hirono Masakazu	1992.76
10th All Japan Championship
Date	2015-03-29		Rating	2738.72
Round	Color	Result	Opponent
1	White	Win	Miyagawa Junzo	2244.37
2	Black	Win	Nagao Noriaki	2279.69
3	White	Win	Kamiya Shunsuke	2677.06
4	Black	Draw	Nakamura Shigeru	2905.96
5	Black	Draw	Nakayama Tomoharu	2746.14
6	Black	Draw	Tachi Masaya	2481.91
15th Kanto Renju Emperor Tournament Final
Date	2015-02-15		Rating	2739.12
Round	Color	Result	Opponent
1	Black	Loss	Nakamura Shigeru	2903.51
2	Black	Loss	Nakamura Shigeru	2903.51
15 Kanto Renju Emperor Tournament 2nd round
Date	2015-01-25		Rating	2740.62
Round	Color	Result	Opponent
1	White	Win	Ono Takayuki	2347.71
2	White	Win	Ishitani Shin-ichi	2431.57
3	Black	Win	Kamiya Shunsuke	2662.30
4	White	Loss	Nakamura Souta	2269.20
5	Black	Win	Nakamura Shigeru	2900.99
18 Mikami Cup Tournament
Date	2015-01-18		Rating	2740.81
Round	Color	Result	Opponent
S1	Black	Win	Ono Takayuki	2349.26
S2	White	Draw	Isobe Taizan	2433.97
S3	Black	Loss	Nakamura Shigeru	2900.44
46 Kyoto Classified Tournament
Date	2014-11-09		Rating	2746.90
Round	Color	Result	Opponent
S1	White	Win	Miyagawa Junzo	2230.94
S2	Black	Win	Kawamura Norihiko	2654.04
S3	Black	Draw	Iio Yoshihiro	2516.13
S4	White	Win	Fukui Nobuhiro	2609.73
S5	Black	Loss	Oosumi Yuuki	2824.48
15 Kanto Renju Emperor Tournament 1st round
Date	2014-10-26		Rating	2748.05
Round	Color	Result	Opponent
1	White	Win	Tomobe Katsuhiro	2092.44
2	Black	Win	Kato Yasuhiro	2087.85
3	Black	Win	Fukui Nobuhiro	2611.22
4	Black	Draw	Kamiya Shunsuke	2642.46
52 Meijinsen Tournament
Date	2014-09-15		Rating	2750.43
Round	Color	Result	Opponent
1	Black	Win	Tamada Yoichi	2566.47
2	Black	Win	Fukui Nobuhiro	2618.44
3	Black	Win	Kashihara Akihiko	2345.87
4	Black	Win	Matsuura Hiroshi	2353.88
5	White	Loss	Oosumi Yuuki	2828.72
6	White	Draw	Iio Yoshihiro	2512.33
7	Black	Win	Sato Kiyotomi	2486.14
8	White	Draw	Hasegawa Kazuto	2656.86
9	White	Draw	Nakayama Tomoharu	2721.90
31th Kanto Championship
Date	2014-05-11		Rating	2756.74
Round	Color	Result	Opponent
1	White	Win	Kamiya Shunsuke	2605.95
2	White	Win	Kobayashi Koichi	2242.92
3	White	Draw	Tamura Kazumasa	2523.31
4	White	Loss	Nakamura Shigeru	2885.39
5	White	Win	Sato Kiyotomi	2471.83
6th Tohoku Championship
Date	2014-04-20		Rating	2758.03
Round	Color	Result	Opponent
1	Black	Win	Hirono Masakazu	1991.90
3	White	Win	Sato Kiyotomi	2469.47
4	White	Win	Gakumazawa Hideaki	2164.00
5	Black	Win	Miura Hitoshi	1803.38
6	Black	Win	Kusajima Masato	2236.27
7	White	Win	Kobayashi Koichi	2240.74
14 Kanto Renju Emperor Tournament final match
Date	2014-02-16		Rating	2759.80
Round	Color	Result	Opponent
1	White	Loss	Nakamura Shigeru	2891.71
2	Black	Loss	Nakamura Shigeru	2891.71
9th All Japan Championship
Date	2014-01-26		Rating	2761.87
Round	Color	Result	Opponent
1	White	Win	Ishitani Shin-ichi	2443.46
2	White	Win	Sato Kiyotomi	2464.83
3	White	Win	Fukui Nobuhiro	2611.33
4	White	Draw	Oosumi Yuuki	2833.23
5	White	Win	Iio Yoshihiro	2550.05
6	White	Win	Tamura Kazumasa	2531.13
14th Mikami Cup S-class
Date	2014-01-19		Rating	2761.69
Round	Color	Result	Opponent
1	Black	Win	Fukui Nobuhiro	2610.02
2	White	Draw	Ishitani Shin-ichi	2442.56
3	White	Win	Tamura Kazumasa	2531.98
4	White	Win	Nakayama Tomoharu	2673.39
5	Black	Loss	Nakamura Shigeru	2892.10
14 Kanto Renju Emperor Tournament 2nd round
Date	2013-12-15		Rating	2760.00
Round	Color	Result	Opponent
1	Black	Win	Fukui Nobuhiro	2604.89
2	Black	Win	Sato Kiyotomi	2466.13
3	White	Draw	Tamura Kazumasa	2530.81
4	Black	Loss	Nakamura Shigeru	2893.09
5	White	Draw	Kamiya Shunsuke	2577.67
45 Kyoto Classified Tournament
Date	2013-11-10		Rating	2759.88
Round	Color	Result	Opponent
S1	White	Win	Ishitani Shin-ichi	2426.84
S2	Black	Draw	Oosumi Yuuki	2841.33
S3	Black	Win	Hata Masayuki	2252.16
S4	Black	Win	Hasegawa Kazuto	2627.10
S5	Black	Win	Mano Yoshihisa	2315.98
51 Meijinsen Tournament
Date	2013-09-16		Rating	2755.50
Round	Color	Result	Opponent
1	Black	Win	Yamaguchi Yusui	2592.84
2	Black	Win	Kawano Takahisa	2373.10
3	White	Win	Kawate Kozo	2194.04
4	Black	Win	Hasegawa Kazuto	2623.46
5	White	Win	Mano Yoshihisa	2317.27
6	Black	Win	Kamiya Shunsuke	2560.45
7	Black	Loss	Oosumi Yuuki	2846.77
8	Black	Win	Sato Kiyotomi	2472.77
9	White	Win	Hata Masayuki	2259.00
ex	Black	Loss	Oosumi Yuuki	2846.77
World Championship 2013, AT
Date	2013-08-14		Rating	2750.92
Round	Color	Result	Opponent
1	Black	Draw	Chen Ko-Han	2683.08
2	White	Win	Lan Zhiren	2635.66
3	White	Win	Hõbemägi Martin	2585.66
4	White	Loss	Sushkov Vladimir	2823.25
5	White	Draw	Oosumi Yuuki	2848.43
6	White	Loss	Epifanov Dmitry	2686.73
7	Black	Win	Salnikov Pavel	2601.67
8	White	Draw	Oll Aivo	2735.31
9	White	Loss	Taimla Tunnet	2878.63
10	White	Draw	Cao Dong	2746.09
11	Black	Loss	Wang Qingqing	2648.78
World Championship 2013, QT
Date	2013-08-05		Rating	2750.69
Round	Color	Result	Opponent
1	White	Win	Hõbemägi Martin	2586.05
2	Black	Win	Miyagawa Junzo	2222.69
3	White	Draw	Sushkov Vladimir	2822.33
4	Black	Win	Pajuste Renee	2627.14
5	White	Draw	Oll Aivo	2735.40
6	Black	Draw	Fedorkin Oleg	2669.11
7	Black	Draw	Salnikov Pavel	2603.75
29th Kanto Championship
Date	2013-05-12		Rating	2744.65
Round	Color	Result	Opponent
1	Black	Win	Iwano Fumio	2183.36
2	Black	Win	Kamiya Shunsuke	2538.23
3	Black	Win	Ishitani Shin-ichi	2385.99
4	White	Win	Nakamura Shigeru	2866.65
5	Black	Win	Kudomi Takahiro	2412.85
5th Tohoku Championship
Date	2013-04-14		Rating	2738.98
Round	Color	Result	Opponent
1	White	Win	Gakumazawa Hideaki	2131.30
2	Black	Win	Kudomi Takahiro	2418.19
3	Black	Win	Kusajima Masato	2215.06
4	White	Win	Maruta Hiroki	2146.95
5	Black	Win	Fukui Nobuhiro	2573.62
8th All Japan Championship
Date	2013-03-24		Rating	2733.51
Round	Color	Result	Opponent
1	White	Win	Kobayashi Koichi	2213.59
2	Black	Draw	Kamiya Shunsuke	2529.58
3	Black	Win	Isobe Taizan	2405.21
4	Black	Win	Iio Yoshihiro	2486.37
5	Black	Loss	Nakamura Shigeru	2869.05
6	White	Loss	Oosumi Yuuki	2845.91
13 Kanto Renju Emperor Tournament final match
Date	2013-02-17		Rating	2726.53
Round	Color	Result	Opponent
1	Black	Loss	Nakamura Shigeru	2874.49
2	Black	Draw	Nakamura Shigeru	2874.49
3	Black	Draw	Nakamura Shigeru	2874.49
16th Mikami Cup Tournament
Date	2013-01-20		Rating	2720.62
Round	Color	Result	Opponent
S1	Black	Win	Mitsumori Masao	2344.46
S2	White	Win	Ishitani Shin-ichi	2368.54
S3	White	Loss	Nakamura Shigeru	2878.82
S4	White	Win	Ono Takayuki	2417.35
S5	White	Loss	Fukui Nobuhiro	2567.66
13 Kanto Renju Emperor Tournament 2nd round
Date	2013-01-13		Rating	2719.63
Round	Color	Result	Opponent
1	Black	Loss	Kudomi Takahiro	2422.53
2	Black	Win	Fukui Nobuhiro	2566.76
3	Black	Win	Isobe Taizan	2408.91
4	White	Win	Ishitani Shin-ichi	2367.49
5	White	Loss	Nakamura Shigeru	2879.54
44 Kyoto Classified Tournament
Date	2012-11-11		Rating	2714.77
Round	Color	Result	Opponent
S1	Black	Win	Ishitani Shin-ichi	2363.83
S2	White	Draw	Hasegawa Kazuto	2594.82
S3	Black	Win	Miyagawa Junzo	2215.40
S4	Black	Win	Kudomi Takahiro	2421.60
S5	Black	Loss	Oosumi Yuuki	2827.94
13 Kanto Renju Emperor Tournament 1st round
Date	2012-10-21		Rating	2713.58
Round	Color	Result	Opponent
1	Black	Win	Tomobe Katsuhiro	2191.63
2	Black	Win	Maruta Hiroki	2121.39
3	Black	Draw	Fukui Nobuhiro	2553.04
4	Black	Win	Tada Ayako	2306.13
50th Meijinsen Tournament
Date	2012-09-17		Rating	2711.83
Round	Color	Result	Opponent
1	Black	Win	Nagasoe Hiroki	2552.11
2	Black	Loss	Nakamura Shigeru	2882.46
3	White	Win	Ono Takayuki	2431.25
4	Black	Win	Nakayama Tomoharu	2626.88
5	Black	Win	Matsuura Hiroshi	2330.00
6	White	Loss	Yamaguchi Yusui	2654.69
7	Black	Win	Iio Yoshihiro	2471.18
8	Black	Draw	Fukui Nobuhiro	2544.07
9	White	Win	Hasegawa Kazuto	2584.30
29th Kanto Championship
Date	2012-05-13		Rating	2699.98
Round	Color	Result	Opponent
1	Black	Win	Tada Ayako	2285.30
2	White	Loss	Nakamura Shigeru	2885.89
3	White	Win	Fukui Nobuhiro	2510.59
4	Black	Win	Matsuoka Teruo	2018.37
5	Black	Win	Kudomi Takahiro	2428.66
Team World Championship 2012
Date	2012-05-06		Rating	2699.11
Round	Color	Result	Opponent
1	White	Draw	He Qifa	2633.64
2	Black	Win	Piddubny Konstantin	2271.87
3	White	Draw	Chingin Konstantin	2822.04
4	Black	Loss	Yang Yu-Hsiung	2496.53
5	Black	Win	Lents Johann	2546.83
7	Black	Draw	Yin Licheng	2538.21
8	Black	Loss	He Qifa	2633.64
9	White	Draw	Chen Wei	2470.59
10	White	Win	Yin Licheng	2538.21
7th All Japan Championship
Date	2012-01-29		Rating	2699.26
Round	Color	Result	Opponent
1	White	Win	Miyoshi Takeo	2166.22
2	White	Loss	Isobe Taizan	2423.11
3	White	Draw	Kamiya Shunsuke	2460.67
4	White	Win	Fukui Nobuhiro	2488.57
5	White	Win	Tamada Yoichi	2488.35
6	White	Loss	Oosumi Yuuki	2791.50
12 Kanto Renju Emperor Tournament 2nd round
Date	2012-01-15		Rating	2700.84
Round	Color	Result	Opponent
1	White	Win	Kamiya Shunsuke	2457.66
2	Black	Win	Mitsumori Masao	2370.45
3	Black	Win	Nakayama Tomoharu	2601.84
4	Black	Loss	Nakamura Shigeru	2876.51
5	Black	Loss	Oosumi Yuuki	2790.05
43 Kyoto Classified Tournament
Date	2011-11-13		Rating	2707.57
Round	Color	Result	Opponent
S1	Black	Win	Hasegawa Kazuto	2556.54
S2	Black	Win	Doi Manabu	2110.88
S3	Black	Win	Miyagawa Junzo	2222.10
S4	Black	Win	Oosumi Yuuki	2776.26
S5	White	Win	Ishitani Shin-ichi	2393.98
12 Kanto Renju Emperor Tournament 1st round
Date	2011-10-23		Rating	2707.20
Round	Color	Result	Opponent
1	White	Win	Kato Yasuhiro	2073.30
2	Black	Win	Kudomi Takahiro	2421.84
3	Black	Loss	Nakayama Tomoharu	2589.56
4	Black	Win	Ishitani Shin-ichi	2394.26
49th Meijinsen Tournament
Date	2011-09-19		Rating	2707.85
Round	Color	Result	Opponent
1	White	Win	Kubo Izumi	2113.46
2	Black	Win	Miyoshi Takeo	2161.30
3	White	Win	Sakashita Shoichi	2147.21
4	White	Win	Matsuura Hiroshi	2382.10
5	Black	Loss	Yamaguchi Yusui	2654.74
6	Black	Win	Nakayama Tomoharu	2580.93
7	White	Win	Iio Yoshihiro	2494.85
8	White	Win	Hasegawa Kazuto	2558.97
9	White	Win	Kashihara Akihiko	2259.55
World Championship 2011, AT
Date	2011-08-10		Rating	2706.01
Round	Color	Result	Opponent
1	Black	Loss	Lin Huang-Yu	2784.31
2	Black	Draw	Artemyev Sergey	2603.51
3	Black	Win	Hou I-Cheng	2504.44
4	Black	Draw	Oosumi Yuuki	2753.41
5	White	Win	Oll Aivo	2702.37
6	Black	Draw	Cao Dong	2698.30
7	White	Loss	Taimla Tunnet	2801.86
8	White	Win	Andersson Tord	2439.92
9	Black	Loss	Huang Jin-xian	2615.20
10	White	Draw	Sushkov Vladimir	2776.73
11	Black	Loss	Dai Xiaohan	2699.84
World Championship 2011, QT
Date	2011-08-03		Rating	2706.43
Round	Color	Result	Opponent
1	White	Win	Ono Takayuki	2399.07
2	White	Win	Dai Xiaohan	2701.18
3	Black	Draw	Kise Katsumi	2554.17
4	Black	Draw	Kawamura Norihiko	2623.89
5	Black	Win	Hõbemägi Martin	2416.85
6	Black	Win	Nikonov Konstantin	2650.41
7	White	Draw	Soosõrv Ants	2753.50
6th All Japan Championship
Date	2011-03-27		Rating	2700.55
Round	Color	Result	Opponent
1	Black	Win	Tada Ayako	2209.50
2	White	Win	Mano Yoshihisa	2276.84
3	Black	Draw	Tamada Yoichi	2515.82
4	Black	Win	Iio Yoshihiro	2512.06
5	Black	Win	Kise Katsumi	2533.96
6	White	Loss	Oosumi Yuuki	2739.81
11 Kanto Renju Emperor Tournament final match
Date	2010-12-26		Rating	2696.62
Round	Color	Result	Opponent
1	White	Loss	Nakamura Shigeru	2860.30
2	Black	Loss	Nakamura Shigeru	2860.30
11 Kanto Renju Emperor Tournament 2nd round
Date	2010-11-21		Rating	2697.29
Round	Color	Result	Opponent
1	Black	Win	Fukui Nobuhiro	2351.51
2	Black	Win	Nakayama Tomoharu	2525.10
3	White	Win	Kudomi Takahiro	2413.65
4	Black	Win	Mitsumori Masao	2325.81
5	Black	Draw	Nakamura Shigeru	2860.26
42 Kyoto Classified Tournament
Date	2010-11-14		Rating	2696.74
Round	Color	Result	Opponent
S1	Black	Loss	Okumura Toyohiko	2333.87
S2	White	Win	Kubo Izumi	2105.15
S3	White	Win	Hata Masayuki	2179.31
S4	White	Win	Hasegawa Kazuto	2632.62
S5	White	Loss	Oosumi Yuuki	2721.41
11 Kanto Renju Emperor Tournament 1st round
Date	2010-10-31		Rating	2696.99
Round	Color	Result	Opponent
1	White	Win	Fujikawa Masaki	2085.52
2	Black	Win	Maruta Koji	2111.19
3	Black	Win	Mitsumori Masao	2325.29
4	Black	Draw	Oosumi Yuuki	2717.07
48th Meijinsen Tournament
Date	2010-09-20		Rating	2696.82
Round	Color	Result	Opponent
1	White	Win	Koiso Shigemasa	2174.26
2	Black	Win	Sakamoto Suzan	2351.92
3	Black	Loss	Oosumi Yuuki	2703.65
4	Black	Draw	Iio Yoshihiro	2530.75
5	White	Win	Tamada Yoichi	2498.76
6	White	Win	Kawano Takahisa	2322.27
7	Black	Win	Ishitani Shin-ichi	2391.82
8	White	Win	Matsuura Hiroshi	2392.54
9	Black	Loss	Yamaguchi Yusui	2592.13
27th Kanto Championship
Date	2010-05-23		Rating	2703.65
Round	Color	Result	Opponent
1	Black	Win	Ono Takayuki	2391.90
2	White	Win	Tamura Kazumasa	2512.28
3	White	Loss	Nakamura Shigeru	2858.56
4	Black	Win	Ishitani Shin-ichi	2399.07
5	Black	Win	Oosumi Yuuki	2666.77
Team World Championship 2010
Date	2010-05-05		Rating	2703.28
Round	Color	Result	Opponent
1	White	Loss	Nagao Noriaki	2375.97
3	Black	Win	Yin Licheng	2516.77
4	Black	Win	Chen Ko-Han	2566.63
5	Black	Draw	Epifanov Dmitry	2558.88
6	Black	Win	Eibatov Nizami	2315.80
7	White	Win	Purk Andry	2667.64
8	Black	Win	Chen Ko-Han	2566.63
9	Black	Loss	Yin Licheng	2516.77
10	White	Win	Purk Andry	2667.64
5th All Japan Championship
Date	2010-03-21		Rating	2702.03
Round	Color	Result	Opponent
1	Black	Win	Kobayashi Koichi	2132.53
2	Black	Win	Isobe Taizan	2394.53
3	White	Win	Nagao Noriaki	2373.43
4	White	Win	Tamura Kazumasa	2514.14
5	White	Win	Ishitani Shin-ichi	2398.50
6	Black	Win	Nakamura Shigeru	2853.88
10 Kanto Renju Emperor Tournament final match
Date	2010-02-21		Rating	2696.84
Round	Color	Result	Opponent
1	Black	Loss	Nakamura Shigeru	2855.90
2	Black	Win	Nakamura Shigeru	2855.90
3	Black	Loss	Nakamura Shigeru	2855.90
13th Mikami Cup Tournament
Date	2010-01-31		Rating	2692.61
Round	Color	Result	Opponent
S1	Black	Win	Hara Masao	2006.62
S2	Black	Win	Isobe Taizan	2395.98
S3	White	Win	Ishitani Shin-ichi	2388.26
10 Kanto Renju Emperor Tournament 2nd round
Date	2009-12-20		Rating	2682.66
Round	Color	Result	Opponent
1	Black	Win	Tamura Kazumasa	2510.63
2	Black	Win	Ono Takayuki	2389.31
3	White	Loss	Nakamura Shigeru	2858.79
4	Black	Win	Nagao Noriaki	2352.45
5	Black	Draw	Tamada Yoichi	2420.83
40th Kyoto Classified - Special class
Date	2009-11-09		Rating	2673.08
Round	Color	Result	Opponent
1	White	Win	Sakamoto Suzan	2323.29
2	Black	Draw	Iio Yoshihiro	2521.19
3	Black	Win	Miyagawa Junzo	2200.17
4	Black	Loss	Oosumi Yuuki	2630.55
5	Black	Draw	Tamura Kazumasa	2509.70
41 Kyoto Classified Tournament
Date	2009-11-08		Rating	2672.94
Round	Color	Result	Opponent
S1	White	Win	Kudomi Takahiro	2365.72
S2	Black	Win	Mano Yoshihisa	2320.95
S3	Black	Loss	Miyoshi Takeo	2156.99
S4	Black	Loss	Iio Yoshihiro	2521.10
S5	White	Win	Sakamoto Suzan	2323.09
10 Kanto Renju Emperor Tournament 1st round
Date	2009-10-04		Rating	2672.86
Round	Color	Result	Opponent
1	Black	Win	Fujikawa Masaki	2050.67
2	Black	Win	Iwano Fumio	2149.21
3	Black	Win	Oosumi Yuuki	2626.33
4	White	Draw	Ono Takayuki	2401.64
47th Meijinsen tournament
Date	2009-09-22		Rating	2672.59
Round	Color	Result	Opponent
1	Black	Win	Kawamura Norihiko	2633.56
2	White	Win	Kataoka Mitsuaki	2258.97
3	Black	Win	Ishitani Shin-ichi	2369.52
4	Black	Loss	Tamura Kazumasa	2507.54
5	White	Win	Matsuura Hiroshi	2366.56
6	Black	Win	Sakamoto Suzan	2312.84
7	Black	Draw	Oosumi Yuuki	2626.43
8	Black	Win	Iio Yoshihiro	2516.02
9	Black	Win	Yamaguchi Yusui	2575.60
World Championship 2009, AT
Date	2009-08-13		Rating	2668.13
Round	Color	Result	Opponent
1	Black	Loss	Nakamura Shigeru	2853.80
2	White	Win	Ono Takayuki	2406.45
3	Black	Loss	Cao Dong	2708.64
4	Black	Loss	Purk Andry	2679.14
5	White	Win	Chen Ko-Han	2553.81
6	White	Win	Kozhin Mikhail	2660.98
7	White	Loss	Karasyov Maxim	2607.39
8	White	Loss	Sushkov Vladimir	2807.58
9	Black	Loss	Wu Di	2653.92
10	Black	Loss	Taimla Tunnet	2835.16
11	Black	Win	Nykl Ondřej	2551.67
World Championship 2009, QT
Date	2009-08-05		Rating	2668.59
Round	Color	Result	Opponent
1	White	Loss	Savrasova Yulia	2659.79
2	Black	Win	Yao Jinrui	2340.50
3	Black	Win	Ono Takayuki	2407.89
4	White	Win	Yin Licheng	2499.97
5	Black	Draw	Nowakowski Maciej	2507.71
6	White	Win	Lin Huang-Yu	2604.05
7	Black	Draw	Cao Dong	2707.27
26th Kanto Championship
Date	2009-05-17		Rating	2670.35
Round	Color	Result	Opponent
1	Black	Win	Ono Takayuki	2409.59
2	Black	Win	Nagao Noriaki	2288.45
3	Black	Draw	Yamaguchi Yusui	2569.37
4	Black	Draw	Nakamura Shigeru	2857.36
5	Black	Draw	Tamura Kazumasa	2515.36
4th All Japan Championship
Date	2009-03-21		Rating	2670.48
Round	Color	Result	Opponent
1	White	Win	Nagao Noriaki	2272.64
2	White	Loss	Ishitani Shin-ichi	2390.82
3	Black	Win	Sakamoto Suzan	2294.11
4	White	Draw	Oosumi Yuuki	2611.97
5	Black	Draw	Mitsumori Masao	2348.64
6	White	Win	Ono Takayuki	2413.69
9 Kanto Renju Emperor Tournament final match
Date	2009-02-08		Rating	2674.68
Round	Color	Result	Opponent
1	Black	Loss	Nakamura Shigeru	2859.18
2	White	Draw	Nakamura Shigeru	2859.18
3	Black	Win	Nakamura Shigeru	2859.18
4	White	Loss	Nakamura Shigeru	2859.18
12th Mikami Cup Tournament
Date	2009-01-18		Rating	2675.72
Round	Color	Result	Opponent
S1	White	Draw	Kawamura Norihiko	2656.45
S2	Black	Loss	Nagao Noriaki	2265.93
S3	Black	Win	Isobe Taizan	2399.68
S4	White	Win	Oosumi Yuuki	2591.43
S5	White	Loss	Nakamura Shigeru	2860.62
46 Meijinsen Match R3-R4
Date	2008-11-23		Rating	2682.55
Round	Color	Result	Opponent
3	Black	Loss	Hasegawa Kazuto	2739.25
9th Kanto Renju Emperor Tournament, 2nd round
Date	2008-11-16		Rating	2683.72
Round	Color	Result	Opponent
1	White	Win	Kudomi Takahiro	2355.88
2	Black	Win	Sato Kiyotomi	2451.43
3	White	Win	Nakayama Tomoharu	2289.34
4	White	Win	Kato Yasuhiro	2001.25
5	Black	Draw	Nakamura Shigeru	2860.02
9th Kanto Renju Emperor Tournament, 1st round
Date	2008-10-26		Rating	2685.66
Round	Color	Result	Opponent
1	Black	Win	Tanizaki Ryusuke	2128.07
2	Black	Draw	Ono Takayuki	2409.98
3	Black	Win	Nakayama Tomoharu	2286.22
4	White	Win	Tamada Yoichi	2268.54
46 Meijinsen Match R1-R2
Date	2008-10-19		Rating	2686.39
Round	Color	Result	Opponent
1	White	Draw	Hasegawa Kazuto	2743.76
2	Black	Loss	Hasegawa Kazuto	2743.76
46th Meijinsen Tournament
Date	2008-09-15		Rating	2691.24
Round	Color	Result	Opponent
1	White	Draw	Kawamura Norihiko	2662.65
2	Black	Win	Matsuura Hiroshi	2327.93
3	White	Win	Iio Yoshihiro	2508.05
4	Black	Win	Ishitani Shin-ichi	2396.18
5	Black	Win	Oosumi Yuuki	2560.61
6	Black	Win	Kataoka Mitsuaki	2251.32
7	White	Win	Yamaguchi Yusui	2582.65
8	Black	Win	Hata Masayuki	2260.27
9	White	Win	Sato Kiyotomi	2443.58
Youth World Championship 2008
Date	2008-08-10		Rating	2690.39
Round	Color	Result	Opponent
A1	White	Win	Zajk Michał	2372.81
A2	White	Win	Tamioła Artur	2402.51
A3	White	Draw	Oll Aivo	2753.51
A4	White	Win	Lents Johann	2481.57
A5	White	Loss	Demján Attila	2746.51
A6	White	Draw	Purk Andry	2640.51
A7	Black	Draw	Ilu Timo	2561.73
A8	White	Win	Tamada Yoichi	2248.17
A9	White	Win	Myasoyedov Yevgeni	2365.77
A10	White	Win	Laube Pavel	2466.72
A11	Black	Win	Andrzejewski Wawrzyniec	2284.34
RIF 20 years anniversary celebration tournament
Date	2008-08-07		Rating	2690.16
Round	Color	Result	Opponent
1	White	Draw	Karlsson Stefan	2597.56
2	White	Win	Sobolev Pavel	2176.55
3	White	Win	Jonsson Peter	2330.34
4	Black	Win	Poghosyan Albert	2378.70
5	Black	Win	Nykl Ondřej	2465.55
6	Black	Win	Ono Takayuki	2407.03
25th Kanto Championship
Date	2008-05-18		Rating	2679.11
Round	Color	Result	Opponent
1	White	Win	Maruta Hiroki	2038.12
2	Black	Win	Tamada Yoichi	2223.84
3	Black	Loss	Nakamura Shigeru	2859.36
4	Black	Win	Isobe Taizan	2425.44
5	White	Win	Arita Nobuyoshi	2393.91
3rd All Japan Championship
Date	2008-03-23		Rating	2670.34
Round	Color	Result	Opponent
1	Black	Win	Tamada Yoichi	2207.14
2	Black	Draw	Kudomi Takahiro	2334.98
3	Black	Win	Sato Kiyotomi	2416.22
4	Black	Loss	Nakamura Shigeru	2856.54
5	White	Win	Ono Takayuki	2395.89
6	Black	Draw	Isobe Taizan	2436.44
8 Kanto Renju Emperor Tournament final match
Date	2008-02-24		Rating	2667.50
Round	Color	Result	Opponent
1	White	Draw	Nakamura Shigeru	2855.82
2	Black	Win	Nakamura Shigeru	2855.82
3	Black	Loss	Nakamura Shigeru	2855.82
4	White	Loss	Nakamura Shigeru	2855.82
8th Kanto Renju Emperor Tournament 2nd round
Date	2007-12-16		Rating	2656.61
Round	Color	Result	Opponent
1	Black	Loss	Ishitani Shin-ichi	2400.94
2	White	Loss	Nakamura Shigeru	2857.83
3	White	Win	Kurata Kiyotaka	2275.36
4	Black	Win	Isobe Taizan	2435.70
5	White	Win	Ono Takayuki	2386.51
39th Kyoto Classified - Special Class
Date	2007-11-11		Rating	2653.34
Round	Color	Result	Opponent
1	Black	Win	Sakamoto Suzan	2277.68
2	White	Win	Okumura Toyohiko	2324.09
3	Black	Draw	Hasegawa Kazuto	2767.94
4	White	Win	Oosumi Yuuki	2558.81
5	Black	Win	Iio Yoshihiro	2534.93
The 45th Meijin-sen Tournament
Date	2007-09-17		Rating	2641.50
Round	Color	Result	Opponent
1	Black	Win	Miyoshi Takeo	2303.07
2	White	Win	Kawamura Norihiko	2631.88
3	White	Win	Iio Yoshihiro	2538.09
4	White	Win	Hiwatashi Kikuma	1887.74
5	Black	Win	Sato Kiyotomi	2399.24
6	Black	Loss	Yamaguchi Yusui	2653.69
7	White	Loss	Oosumi Yuuki	2556.24
8	White	Win	Isobe Taizan	2436.23
9	White	Win	Matsuura Hiroshi	2301.90
World Championship 2007, AT
Date	2007-08-15		Rating	2632.80
Round	Color	Result	Opponent
1	White	Draw	Savrasova Yulia	2696.44
2	White	Win	Iio Yoshihiro	2539.75
3	Black	Win	Oll Aivo	2655.56
4	White	Draw	Karlsson Stefan	2612.54
5	White	Loss	Yamaguchi Yusui	2656.99
6	White	Loss	Wu Di	2705.40
7	Black	Loss	Taimla Tunnet	2784.66
8	White	Loss	Chingin Konstantin	2799.80
9	Black	Loss	Sushkov Vladimir	2759.03
10	Black	Draw	Kozhin Mikhail	2595.11
11	White	Loss	Purk Andry	2651.64
World Championship 2007, QT
Date	2007-08-08		Rating	2631.99
Round	Color	Result	Opponent
1	White	Win	Eriksson Marcus	2302.52
2	White	Win	Ikonen Jussi	2264.05
3	Black	Draw	Iio Yoshihiro	2540.39
4	Black	Win	Oosumi Yuuki	2548.27
5	Black	Win	Lin Huang-Yu	2522.74
6	Black	Draw	Poghosyan Albert	2388.52
7	White	Loss	Wu Di	2703.42
24th Kanto Championship Tournament
Date	2007-05-06		Rating	2619.60
Round	Color	Result	Opponent
1	Black	Win	Iwano Fumio	2158.24
2	White	Win	Kubo Izumi	2099.63
3	Black	Win	Sato Kiyotomi	2421.01
4	White	Win	Isobe Taizan	2431.29
5	Black	Win	Kudomi Takahiro	2335.19
The 5th Shanghai Renju Meijin Invitation Tournament
Date	2007-05-03		Rating	2618.95
Round	Color	Result	Opponent
1	Black	Loss	Yamaguchi Yusui	2646.82
2	Black	Win	Ge Chongyu	2391.86
3	Black	Loss	Cao Dong	2627.54
SF1	Black	Win	Mitsumori Masao	2270.47
SF2	Black	Draw	Isobe Taizan	2431.28
SF3	Black	Loss	Zhu Jianfeng	2516.87
SF4	White	Draw	Zhang Yifeng	2382.05
7th Kanto Renju Emperor Tournament - Final
Date	2007-02-25		Rating	2617.79
Round	Color	Result	Opponent
1	Black	Loss	Nakamura Shigeru	2850.51
2	Black	Draw	Nakamura Shigeru	2850.51
3	Black	Draw	Nakamura Shigeru	2850.51
The 7th Kanto Renju Emperor Tournament, 2nd round
Date	2006-12-10		Rating	2613.23
Round	Color	Result	Opponent
	White	Win	Hara Masao	2085.14
	White	Win	Kudomi Takahiro	2297.35
	White	Win	Nagao Noriaki	2243.99
	White	Win	Sato Kiyotomi	2433.73
	Black	Loss	Nakamura Shigeru	2851.82
38th Kyoto Classified - Special class
Date	2006-11-12		Rating	2610.48
Round	Color	Result	Opponent
1	White	Win	Miyagawa Junzo	2274.14
2	Black	Win	Miyoshi Takeo	2282.95
3	White	Win	Miyagawa Sou	2175.78
4	Black	Win	Takashima Junya	2507.79
5	White	Draw	Oosumi Yuuki	2474.28
The 44th Meijin-sen Tournament
Date	2006-09-18		Rating	2602.00
Round	Color	Result	Opponent
1	Black	Loss	Yamaguchi Yusui	2638.51
2	Black	Win	Iio Yoshihiro	2512.82
3	Black	Win	Nagao Noriaki	2242.95
4	White	Draw	Fujii Naoki	2137.41
5	Black	Loss	Kawamura Norihiko	2665.92
6	White	Win	Sato Kiyotomi	2442.20
7	White	Win	Ishitani Shin-ichi	2362.91
8	Black	Draw	Oosumi Yuuki	2454.72
9	White	Win	Matsuura Hiroshi	2300.49
Asian Championship 2006
Date	2006-08-15		Rating	2598.15
Round	Color	Result	Opponent
1	White	Win	Yoon Seong-Won	1832.02
2	White	Win	Kim Kyu-Cheol	2001.98
3	White	Loss	Kim Chang-Hoon	2543.64
4	White	Win	Choi Yun Suk	2269.21
5	Black	Win	Kim Gyu-Hyeon	2492.94
6	White	Win	Kim Byoung-Jun	2505.09
7	White	Draw	Yamaguchi Yusui	2636.22
8	Black	Win	Iio Yoshihiro	2512.00
Youth World Championship 2006
Date	2006-08-08		Rating	2596.77
Round	Color	Result	Opponent
a1	White	Draw	Takashima Junya	2503.64
a2	Black	Loss	Duan Ran	2351.42
a3	Black	Win	Hallkvist Joel	2059.72
a4	White	Win	Maruta Hiroki	1997.04
a5	White	Draw	Zhang Cheng	2453.99
a6	Black	Loss	Lents Johann	2511.85
a7	White	Win	Blomstedt Torbjorn	2125.14
a8	Black	Draw	Qiu Yunfei	2525.31
23rd Kanto Championship
Date	2006-05-21		Rating	2596.28
Round	Color	Result	Opponent
1	Black	Win	Ono Takayuki	2299.50
2	White	Win	Tadokoro Hosai	1934.76
3	Black	Draw	Mitsumori Masao	2258.61
4	White	Win	Arita Nobuyoshi	2369.37
5	White	Draw	Yamaguchi Yusui	2637.92
Team World Championship 2006
Date	2006-05-05		Rating	2596.05
Round	Color	Result	Opponent
1	Black	Draw	Saarenpää Samuli	2462.71
2	Black	Win	Karlsson Stefan	2555.52
3	Black	Loss	Meritee Ando	2866.20
4	Black	Win	Salnikov Pavel	2536.95
5	Black	Win	Chen Wei	2542.24
6	Black	Loss	Sushkov Vladimir	2723.95
7	Black	Loss	Ilu Timo	2566.62
F1	Black	Win	Karlsson Stefan	2555.52
F2	Black	Loss	Karlsson Stefan	2555.52
6th Kanto Renju Emperor Tournament - Final match
Date	2005-12-04		Rating	2594.85
Round	Color	Result	Opponent
1	White	Win	Yamaguchi Yusui	2603.56
2	Black	Loss	Yamaguchi Yusui	2603.56
3	White	Draw	Yamaguchi Yusui	2603.56
4	Black	Win	Yamaguchi Yusui	2603.56
37th Kyoto Classified - Special class
Date	2005-11-13		Rating	2593.40
Round	Color	Result	Opponent
1	Black	Draw	Ishitani Shin-ichi	2393.11
2	White	Win	Yamaguchi Yusui	2598.60
3	White	Win	Takashima Junya	2517.97
4	White	Draw	Iio Yoshihiro	2480.22
5	Black	Draw	Miyoshi Takeo	2279.63
6th Kanto Renju Emperor Tournament - Semifinal
Date	2005-10-23		Rating	2591.66
Round	Color	Result	Opponent
	White	Draw	Yamaguchi Yusui	2595.77
	Black	Loss	Isobe Taizan	2457.84
	Black	Win	Kamemoto Daichi	2180.77
	Black	Win	Sato Kiyotomi	2394.71
	Black	Win	Koyama Jun	2299.89
The 43rd Meijin-sen Tournament
Date	2005-09-19		Rating	2589.57
Round	Color	Result	Opponent
1	Black	Win	Oosumi Yuuki	2392.13
2	Black	Loss	Takashima Junya	2510.29
3	Black	Draw	Ishitani Shin-ichi	2398.64
4	White	Win	Matsuura Hiroshi	2349.68
5	White	Loss	Hasegawa Kazuto	2702.98
6	Black	Win	Tanaka Koichi	2333.78
7	White	Win	Sato Kiyotomi	2392.57
8	White	Win	Kawate Kozo	2173.47
9	Black	Win	Yamaguchi Yusui	2589.71
World Championship 2005, AT
Date	2005-08-07		Rating	2585.72
Round	Color	Result	Opponent
1	Black	Loss	Purk Andry	2569.04
2	Black	Loss	Chingin Konstantin	2736.70
3	Black	Draw	Artemyev Sergey	2652.64
4	Black	Draw	Taimla Tunnet	2754.44
5	Black	Draw	Karlsson Stefan	2544.20
6	White	Win	Savrasova Yulia	2659.47
7	Black	Draw	Hermansson Hannes	2422.10
8	Black	Loss	Meritee Ando	2851.66
9	Black	Draw	Sushkov Vladimir	2697.62
10	Black	Draw	Tarannikov Yuriy	2613.37
11	Black	Win	Andersson Tord	2384.58
43rd Meijinsen Qualification: East Japan Final
Date	2005-07-11		Rating	2583.05
Round	Color	Result	Opponent
	White	Loss	Sato Kiyotomi	2394.81
	Black	Draw	Itami Yoshiyuki	2189.53
	Black	Win	Mitsumori Masao	2275.74
43rd Meijinsen Qualification: East Japan 1st round
Date	2005-06-12		Rating	2583.43
Round	Color	Result	Opponent
1	Black	Win	Tanno Yoshitaka	2093.87
2	White	Win	Ono Takayuki	2292.35
3	Black	Win	Itami Yoshiyuki	2189.41
4	Black	Loss	Mitsumori Masao	2273.37
22nd Kanto Championship
Date	2005-05-22		Rating	2584.98
Round	Color	Result	Opponent
1	White	Win	Matsuoka Teruo	1859.30
2	Black	Win	Kamemoto Daichi	2132.19
3	Black	Win	Yamaguchi Yusui	2562.34
4	White	Win	Kawamura Norihiko	2692.53
5	Black	Draw	Isobe Taizan	2466.10
Japan WC Qualification tournament
Date	2005-04-03		Rating	2582.96
Round	Color	Result	Opponent
1	White	Win	Arita Nobuyoshi	2302.14
2	Black	Win	Miyagawa Junzo	2253.54
3	Black	Loss	Isobe Taizan	2463.32
4	Black	Draw	Ono Takayuki	2295.73
5	White	Win	Oosumi Yuuki	2369.97
6	White	Win	Matsuura Hiroshi	2389.48
5th Kanto Renju Emperor Tournament - Final
Date	2005-01-30		Rating	2582.01
Round	Color	Result	Opponent
1	White	Win	Yamaguchi Yusui	2561.28
2	Black	Win	Yamaguchi Yusui	2561.28
5th Kanto Renju Emperor Tournament - 2nd round
Date	2004-12-19		Rating	2576.98
Round	Color	Result	Opponent
	White	Win	Mitsumori Masao	2246.96
	White	Win	Kudomi Takahiro	2328.99
	White	Win	Ono Takayuki	2293.98
	White	Win	Sato Kiyotomi	2368.69
	Black	Loss	Yamaguchi Yusui	2568.50
5th Kanto Renju Emperor Tournament - 1st round
Date	2004-11-28		Rating	2573.99
Round	Color	Result	Opponent
1	Black	Win	Maruta Hiroki	1958.32
2	White	Win	Nagao Noriaki	2246.25
3	Black	Win	Arita Nobuyoshi	2280.41
4	White	Draw	Sato Kiyotomi	2368.67
The 42nd Meijin-sen Tournament
Date	2004-09-20		Rating	2563.77
Round	Color	Result	Opponent
1	Black	Loss	Iio Yoshihiro	2456.72
2	Black	Win	Sakamoto Suzan	2292.61
3	Black	Draw	Takagawa Teiji	2336.75
4	White	Draw	Kawamura Norihiko	2721.36
5	White	Draw	Matsuura Hiroshi	2405.43
6	White	Draw	Ishitani Shin-ichi	2378.09
7	White	Loss	Saito Koji	2192.53
8	Black	Win	Sakashita Shoichi	2206.03
9	White	Loss	Hasegawa Kazuto	2656.72
Youth World Championship 2004
Date	2004-08-06		Rating	2567.89
Round	Color	Result	Opponent
4	White	Win	Lysakov Mikhail	2435.03
9	Black	Win	Mossinyan David	2244.63
A1	White	Win	Miyagawa Sou	2117.89
A2	White	Win	Vershinin Pavel	2594.36
A3	White	Win	Tamura Kazumasa	2334.61
A5	White	Win	Oll Aivo	2466.54
A6	White	Win	Ilu Timo	2530.96
A7	White	Win	Lents Johann	2552.55
A8	White	Win	Purk Andry	2438.58
A10	White	Win	Antanyan Samvel	2217.79
A11	White	Loss	Nagao Noriaki	2254.10
42nd Meijinsen Qualification: East Japan 2nd round
Date	2004-07-11		Rating	2564.12
Round	Color	Result	Opponent
	White	Loss	Kawamura Norihiko	2722.30
	Black	Loss	Sato Kiyotomi	2357.24
	White	Win	Kudomi Takahiro	2328.24
4th Kanto Renju Emperor Tournament - Final
Date	2004-02-29		Rating	2557.37
Round	Color	Result	Opponent
1	Black	Draw	Yamaguchi Yusui	2594.43
2	Black	Win	Yamaguchi Yusui	2594.43
3	Black	Loss	Yamaguchi Yusui	2594.43
4	Black	Loss	Yamaguchi Yusui	2594.43
7th Mikami Cup - Special Class
Date	2004-01-25		Rating	2556.71
Round	Color	Result	Opponent
1	Black	Draw	Mitsumori Masao	2261.57
2	Black	Loss	Yamaguchi Yusui	2595.30
4	White	Win	Kudomi Takahiro	2322.94
4th Kanto Renju Emperor Tournament - 2nd round
Date	2003-11-30		Rating	2559.29
Round	Color	Result	Opponent
	White	Win	Nagao Noriaki	2282.12
	White	Win	Mitsumori Masao	2267.39
	White	Win	Maruta Koji	2229.91
	White	Win	Isobe Taizan	2424.26
	White	Draw	Yamaguchi Yusui	2595.08
4th Kanto Renju Emperor Tournament - 1st round
Date	2003-11-16		Rating	2558.66
Round	Color	Result	Opponent
1	Black	Win	Sasaki Miyu	1939.87
2	White	Win	Sato Takuma	2145.43
3	Black	Win	Ono Takayuki	2214.39
4	White	Win	Isobe Taizan	2423.09
41st Meijin-sen Tournament
Date	2003-09-15		Rating	2552.07
Round	Color	Result	Opponent
1	Black	Win	Miyagawa Junzo	2262.11
2	White	Draw	Hasegawa Kazuto	2627.08
3	White	Win	Ishitani Shin-ichi	2384.44
4	Black	Draw	Takashima Junya	2342.58
5	Black	Draw	Kudomi Takahiro	2341.52
6	Black	Win	Isobe Taizan	2417.97
7	White	Loss	Matsuura Hiroshi	2409.78
8	Black	Win	Kuga Akio	2384.62
9	Black	Loss	Iio Yoshihiro	2498.22
World Championship 2003, AT
Date	2003-08-08		Rating	2550.90
Round	Color	Result	Opponent
1	White	Loss	Sushkov Vladimir	2691.89
2	Black	Win	Yamaguchi Yusui	2580.34
3	Black	Draw	Iio Yoshihiro	2496.12
4	White	Loss	Taimla Tunnet	2710.36
5	Black	Loss	Chingin Konstantin	2716.49
6	Black	Loss	Meritee Ando	2802.99
7	Black	Win	Sinyov Igor	2557.11
8	White	Win	Karlsson Stefan	2559.09
9	Black	Win	Gaulitz Joachim	2408.40
10	White	Win	Andersson Tord	2381.54
11	Black	Win	Carlsson Martin	2429.81
41th Meijinsen Qualification: East Japan 2nd round
Date	2003-07-13		Rating	2546.24
Round	Color	Result	Opponent
	White	Draw	Isobe Taizan	2430.22
	Black	Draw	Sato Kiyotomi	2300.78
	Black	Win	Suzuki Naoya	2318.29
41th Meijinsen Qualification: East Japan 1st round
Date	2003-06-08		Rating	2540.95
Round	Color	Result	Opponent
1	Black	Win	Ono Takayuki	2190.99
2	White	Win	Nagao Noriaki	2308.27
3	Black	Draw	Suzuki Naoya	2318.61
4	White	Win	Sano Hiroyuki	2210.43
Japan WC Qualification 2003
Date	2003-03-22		Rating	2527.67
Round	Color	Result	Opponent
1	Black	Win	Nagao Noriaki	2307.62
2	Black	Win	Unoura Hidenori	2173.92
3	Black	Win	Isobe Taizan	2441.48
4	White	Win	Ishitani Shin-ichi	2392.00
5	Black	Win	Miyoshi Takeo	2243.53
34th Kyoto Classified - special class
Date	2002-11-10		Rating	2487.73
Round	Color	Result	Opponent
1	White	Loss	Iio Yoshihiro	2442.57
2	White	Win	Miyagawa Junzo	2250.35
3	Black	Win	Adachi Yasuhiro	2003.05
4	White	Win	Doi Manabu	2106.31
5	White	Loss	Kudomi Takahiro	2391.97
40th Meijin-sen Tournament
Date	2002-09-16		Rating	2476.20
Round	Color	Result	Opponent
1	White	Win	Kudomi Takahiro	2394.48
2	Black	Loss	Isobe Taizan	2447.82
3	White	Loss	Iio Yoshihiro	2433.93
4	Black	Win	Ishitani Shin-ichi	2393.42
5	Black	Loss	Yamaguchi Yusui	2591.61
6	White	Win	Nishimura Toshio	2355.10
7	White	Loss	Takagawa Teiji	2360.85
8	White	Win	Matsuura Hiroshi	2314.77
9	White	Loss	Hasegawa Kazuto	2592.89
Youth World Championship 2002
Date	2002-08-02		Rating	2472.06
Round	Color	Result	Opponent
A1	White	Win	Nagao Noriaki	2304.78
A2	White	Win	Novikov Nikolay	2186.42
A3	White	Loss	Chingin Konstantin	2657.87
A4	White	Win	Nekrasov Denis	2367.49
A5	White	Win	Lents Johann	2430.89
A6	White	Win	Vershinin Pavel	2459.70
A7	White	Win	Karasyov Maxim	2482.72
A8	White	Draw	Kazarin Mikhail	2424.85
A9	Black	Loss	Mossinyan David	2252.62
A10	White	Draw	Tamura Kazumasa	2260.79
A11	Black	Win	Provorov Yury	2201.39
40th Meijinsen Qualification: East Japan 2nd round
Date	2002-07-14		Rating	2468.13
Round	Color	Result	Opponent
	White	Win	Sunagawa Shouki	2172.49
	White	Win	Nara Hideki	2551.61
	White	Draw	Isobe Taizan	2451.23
40th Meijinsen Qualification: East Japan 1st round
Date	2002-06-02		Rating	2455.96
Round	Color	Result	Opponent
1	Black	Draw	Kato Yasuhiro	2098.93
2	Black	Win	Ohno Syunzo	1995.60
3	Black	Win	Arita Nobuyoshi	2156.76
4	White	Win	Sunagawa Shouki	2180.46
World Championship 2001, BT
Date	2001-08-12		Rating	2370.73
Round	Color	Result	Opponent
1	White	Win	Dzainukov Eldar	2016.85
2	White	Win	Gaujens Artis	2059.28
3	Black	Draw	Nosovsky Alexander	2171.86
4	White	Win	Khramov Andrey	2204.37
5	Black	Loss	Carlsson Martin	2309.03
6	Black	Loss	Henningsson Anders	2457.30
7	Black	Draw	Miyoshi Takeo	2203.17
8	White	Win	Sakamoto Suzan	2214.58
World Championship 2001, QT
Date	2001-08-06		Rating	2369.41
Round	Color	Result	Opponent
1	White	Draw	Park Jeong Ho	2305.66
2	Black	Win	Eibatov Nizami	2361.76
3	Black	Draw	Kusajima Masato	2393.75
4	Black	Win	Kim Byoung-Jun	2455.37
5	Black	Draw	Gardström Petter	2516.23
6	Black	Loss	Nara Hideki	2542.75
7	White	Loss	Lin Sheng-Min	2207.11
Japan WC Qualification tournament
Date	2001-03-24		Rating	2335.63
Round	Color	Result	Opponent
1	White	Draw	Mitsumori Masao	2299.26
2	White	Loss	Hasegawa Kazuto	2564.29
3	White	Win	Iwata Akihisa	2198.28
4	White	Loss	Isobe Taizan	2443.32
5	White	Draw	Koiso Shigemasa	2171.92
6	White	Win	Sakamoto Suzan	2177.92
7	Black	Win	Miyagawa Sou	1969.63
Youth World Championship 2000
Date	2000-08-04		Rating	2280.81
Round	Color	Result	Opponent
A1	White	Loss	Grishnin Stepan	2122.01
A3	White	Loss	Diner Stanislav	2244.28
A4	Black	Draw	Widman Christofher	1810.74
A5	White	Win	Unoura Kazuhisa	1930.07
A6	Black	Win	Fjellstrom Kristoffer	1799.27
A7	Black	Loss	Hermansson Hannes	2343.39
A9	White	Draw	Karasyov Maxim	2332.47
38th Meijinsen Qualification: East Japan 1st round
Date	2000-06-04		Rating	2279.03
Round	Color	Result	Opponent
4	White	Win	Hara Masao	2121.27
Kanto Championship
Date	2000-05-14		Rating	2277.74
Round	Color	Result	Opponent
1	White	Win	Nara Hideki	2566.90
2	Black	Loss	Mitsumori Masao	2296.86
3	Black	Draw	Omata Mitsuo	1872.36
4	Black	Win	Hara Masao	2121.58