Mitsumori Masao

Place: Hasuta, Japan

Rating: 2241.41, Rank: 230

First game: 1991-08-10, Last game: 2019-05-12

Top rating: 2325.95 (1995-08-07)

Games: 227, Wins: 101, Draws: 14, Losses: 112

Gy1: 0, Gy2: 4, Gy5: 21

57 Meijinsen Qualification Kanto area 1st round
Date	2019-05-12		Rating	2241.41
Round	Color	Result	Opponent
1	White	Loss	Maruta Hiroki	2108.13
2	White	Loss	Inoue Fumiya	2333.16
3	White	Win	Iwano Fumio	2128.73
4	White	Win	Maruta Koji	2056.67
56 Meijinsen Qualification Kanto area 1st round
Date	2018-05-13		Rating	2253.69
Round	Color	Result	Opponent
1	White	Win	Koyama Jun	2499.85
2	White	Loss	Sato Kiyotomi	2364.73
3	Black	Win	Iwano Fumio	2176.56
4	Black	Loss	Ono Takayuki	2303.59
55 Meijinsen Qualification Kanto area 1st round
Date	2017-05-21		Rating	2254.58
Round	Color	Result	Opponent
1	Black	Draw	Chigira Makoto	1992.54
2	White	Win	Iwano Fumio	2190.44
3	White	Loss	Ono Takayuki	2295.33
4	White	Loss	Sato Kiyotomi	2393.18
54 Meijinsen Qualification East Japan area 2nd round
Date	2016-06-12		Rating	2272.31
Round	Color	Result	Opponent
1	Black	Loss	Tamada Yoichi	2477.32
2	White	Loss	Okabe Hiroshi	2637.72
3	White	Loss	Kamiya Shunsuke	2641.38
4	White	Draw	Koyama Jun	2540.64
5	White	Win	Kusajima Masato	2193.88
54 Meijinsen Qualification Kanto area 1st round
Date	2016-05-22		Rating	2272.99
Round	Color	Result	Opponent
1	White	Win	Chigira Makoto	1981.53
2	White	Win	Kamiya Shunsuke	2639.50
3	White	Loss	Sato Kiyotomi	2429.50
4	White	Win	Maruta Koji	2104.09
53 Meijinsen Qualification East Japan area 1st round
Date	2015-05-10		Rating	2256.13
Round	Color	Result	Opponent
1	White	Loss	Koyama Jun	2531.30
2	White	Loss	Nakamura Souta	2213.56
3	Black	Win	Chigira Makoto	1957.59
4	Black	Win	Fujikawa Masaki	2042.80
10th All Japan Championship
Date	2015-03-29		Rating	2255.36
Round	Color	Result	Opponent
1	White	Win	Fujita Yudai	2312.20
2	White	Loss	Tamada Yoichi	2493.47
3	White	Win	Kubo Izumi	2019.04
4	White	Loss	Koyama Jun	2524.51
5	White	Loss	Tanizaki Ryusuke	2139.50
6	White	Loss	Miyagawa Junzo	2165.97
1st Senior Masters Championship
Date	2014-08-29		Rating	2265.32
Round	Color	Result	Opponent
1	White	Win	Miyagawa Junzo	2148.43
2	Black	Loss	Ishitani Shin-ichi	2368.83
3	Black	Win	Miura Hitoshi	1755.80
4	White	Win	Kubo Izumi	2022.01
5	White	Loss	Isobe Taizan	2353.29
6	White	Win	Kobayashi Koichi	2184.72
7	White	Win	Kato Yasuhiro	2024.95
52 Meijinsen Qualification East Japan area 1st round
Date	2014-06-08		Rating	2266.49
Round	Color	Result	Opponent
1	White	Loss	Tamada Yoichi	2473.35
2	White	Loss	Kawamura Norihiko	2568.67
3	White	Win	Iwano Fumio	2187.69
4	White	Win	Kudomi Takahiro	2255.25
Team World Championship
Date	2014-05-03		Rating	2265.70
Round	Color	Result	Opponent
5	White	Loss	Artemyev Sergey	2510.62
6	White	Loss	Oosumi Yuuki	2737.35
51 Meijinsen Qualification East-Japan area 2nd round
Date	2013-07-21		Rating	2264.87
Round	Color	Result	Opponent
1	White	Loss	Kudomi Takahiro	2312.04
2	Black	Win	Tomobe Katsuhiro	2091.34
3	White	Win	Kato Yasuhiro	2061.97
4	White	Loss	Sato Kiyotomi	2386.08
5	White	Loss	Kamiya Shunsuke	2478.06
51 Meijinsen Qualification East-Japan area 1st round
Date	2013-06-16		Rating	2266.04
Round	Color	Result	Opponent
1	White	Loss	Kato Yasuhiro	2068.08
2	White	Win	Kobayashi Koichi	2153.08
3	White	Loss	Kamiya Shunsuke	2472.83
4	White	Win	Ono Takayuki	2315.02
29th Kanto Championship
Date	2013-05-12		Rating	2267.40
Round	Color	Result	Opponent
1	White	Draw	Tada Ayako	2227.38
2	White	Draw	Isobe Taizan	2329.03
3	Black	Loss	Nakamura Shigeru	2787.40
4	White	Win	Tomobe Katsuhiro	2096.69
5	White	Loss	Kato Yasuhiro	2070.57
8th All Japan Championship
Date	2013-03-24		Rating	2271.14
Round	Color	Result	Opponent
1	White	Loss	Nakamura Shigeru	2788.61
2	White	Win	Kubo Izumi	2022.41
3	White	Win	Kato Yasuhiro	2067.94
4	White	Loss	Isobe Taizan	2334.78
5	White	Win	Kudomi Takahiro	2336.17
6	White	Loss	Kamiya Shunsuke	2460.50
16th Mikami Cup Tournament
Date	2013-01-20		Rating	2274.49
Round	Color	Result	Opponent
S1	White	Loss	Okabe Hiroshi	2641.47
S2	White	Loss	Fukui Nobuhiro	2483.67
S3	White	Win	Kobayashi Koichi	2150.13
S4	White	Win	Ishitani Shin-ichi	2302.41
S5	Black	Loss	Kudomi Takahiro	2338.90
13 Kanto Renju Emperor Tournament 1st round
Date	2012-10-21		Rating	2278.50
Round	Color	Result	Opponent
1	White	Win	Kato Yasuhiro	2044.86
2	White	Loss	Maruta Koji	2081.65
3	White	Loss	Ono Takayuki	2346.71
4	White	Win	Maruta Hiroki	2057.50
50 Meijinsen Qualification East-Japan area 1st round
Date	2012-06-03		Rating	2292.32
Round	Color	Result	Opponent
1	Black	Win	Maruta Koji	2068.30
2	White	Win	Sato Kiyotomi	2330.01
3	Black	Loss	Nakamura Shigeru	2798.06
4	White	Loss	Kudomi Takahiro	2345.45
29th Kanto Championship
Date	2012-05-13		Rating	2293.93
Round	Color	Result	Opponent
1	Black	Win	Kato Yasuhiro	2018.91
2	White	Loss	Kudomi Takahiro	2345.49
3	White	Win	Nakayama Tomoharu	2538.56
4	White	Loss	Nakamura Shigeru	2797.81
5	White	Win	Iwano Fumio	2083.34
15th Mikami Cup Tournament
Date	2012-03-11		Rating	2295.39
Round	Color	Result	Opponent
S2	White	Loss	Oosumi Yuuki	2708.77
S3	White	Win	Tadokoro Hosai	1838.29
S4	White	Loss	Nakamura Shigeru	2792.77
S5	Black	Loss	Ishitani Shin-ichi	2306.49
7th All Japan Championship
Date	2012-01-29		Rating	2298.09
Round	Color	Result	Opponent
1	Black	Win	Suzuki Rin	1938.24
2	White	Loss	Iio Yoshihiro	2409.73
3	White	Win	Kobayashi Koichi	2143.19
4	White	Win	Ishitani Shin-ichi	2310.75
5	White	Loss	Oosumi Yuuki	2705.54
6	White	Win	Tamada Yoichi	2415.10
12 Kanto Renju Emperor Tournament 2nd round
Date	2012-01-15		Rating	2297.80
Round	Color	Result	Opponent
1	White	Win	Nakayama Tomoharu	2522.25
2	White	Loss	Okabe Hiroshi	2622.63
3	White	Loss	Nakamura Shigeru	2789.34
4	White	Loss	Oosumi Yuuki	2704.07
5	White	Loss	Kamiya Shunsuke	2401.48
12 Kanto Renju Emperor Tournament 1st round
Date	2011-10-23		Rating	2295.08
Round	Color	Result	Opponent
1	White	Win	Kobayashi Koichi	2127.02
2	White	Loss	Kamiya Shunsuke	2390.61
3	White	Win	Ono Takayuki	2335.88
4	White	Win	Kudomi Takahiro	2337.79
49 Meijinsen Qualification East-Japan area 1st round
Date	2011-06-12		Rating	2280.63
Round	Color	Result	Opponent
1	White	Loss	Nagao Noriaki	2365.71
2	White	Loss	Ono Takayuki	2329.57
3	White	Loss	Kudomi Takahiro	2329.18
4	White	Win	Maruta Hiroki	2051.00
28th Kanto Championship
Date	2011-05-22		Rating	2279.95
Round	Color	Result	Opponent
1	White	Loss	Fujikawa Masaki	2022.24
2	Black	Win	Maruta Hiroki	2052.81
3	White	Loss	Tomobe Katsuhiro	2158.94
4	White	Win	Ono Takayuki	2329.24
5	White	Win	Nakayama Tomoharu	2477.90
14th Mikami Cup Tournament
Date	2011-01-30		Rating	2275.87
Round	Color	Result	Opponent
S1	White	Win	Gakumazawa Hideaki	2031.87
S2	White	Loss	Oosumi Yuuki	2653.80
S3	White	Loss	Ono Takayuki	2328.53
S5	Black	Loss	Nakamura Shigeru	2767.29
11 Kanto Renju Emperor Tournament 2nd round
Date	2010-11-21		Rating	2275.32
Round	Color	Result	Opponent
5	White	Win	Fukui Nobuhiro	2286.29
11 Kanto Renju Emperor Tournament 1st round
Date	2010-10-31		Rating	2274.35
Round	Color	Result	Opponent
1	White	Win	Iwano Fumio	2073.81
2	White	Win	Nagao Noriaki	2354.87
3	White	Loss	Okabe Hiroshi	2608.77
4	White	Win	Ono Takayuki	2325.45
Meijinsen Qualification East-Japan area 1st round
Date	2010-06-27		Rating	2256.39
Round	Color	Result	Opponent
1	Black	Win	Kato Yasuhiro	2022.90
2	White	Win	Fukui Nobuhiro	2255.65
3	White	Draw	Isobe Taizan	2331.49
4	White	Loss	Ono Takayuki	2324.12
27th Kanto Championship
Date	2010-05-23		Rating	2250.34
Round	Color	Result	Opponent
1	White	Loss	Tomobe Katsuhiro	2146.10
2	Black	Win	Maruta Hiroki	2033.91
3	White	Loss	Ono Takayuki	2322.64
4	White	Loss	Nagao Noriaki	2345.27
5	Black	Loss	Fukui Nobuhiro	2250.14
5th All Japan Championship
Date	2010-03-21		Rating	2247.35
Round	Color	Result	Opponent
1	White	Loss	Shimoyama Takuma	2192.13
2	White	Draw	Kawasaki Nobuhiko	2149.61
3	White	Loss	Kobayashi Koichi	2069.86
4	White	Loss	Tada Ayako	2162.72
5	White	Win	Matsuoka Teruo	1948.13
6	Black	Win	Kuramoto Hideharu	1883.84
13th Mikami Cup Tournament
Date	2010-01-31		Rating	2251.60
Round	Color	Result	Opponent
S1	White	Loss	Ono Takayuki	2313.95
47th Meijinsen Qualification East-Japan area final round
Date	2009-07-05		Rating	2276.26
Round	Color	Result	Opponent
1	White	Loss	Yamaguchi Yusui	2477.07
2	White	Win	Ono Takayuki	2308.22
3	White	Win	Kudomi Takahiro	2301.75
4	White	Draw	Arita Nobuyoshi	2291.65
5	White	Draw	Tamura Kazumasa	2427.03
47th Meijinsen Qualification East-Japan area 1st round
Date	2009-06-14		Rating	2277.06
Round	Color	Result	Opponent
1	White	Win	Ono Takayuki	2308.63
2	Black	Loss	Sato Kiyotomi	2328.54
3	White	Win	Kudomi Takahiro	2302.23
4	White	Loss	Tamura Kazumasa	2428.14
26th Kanto Championship
Date	2009-05-17		Rating	2277.37
Round	Color	Result	Opponent
5	White	Win	Iwano Fumio	2129.14
The 6th Shanghai Renju Meijin Invitation Tournament
Date	2009-05-03		Rating	2277.22
Round	Color	Result	Opponent
1	Black	Win	Yu Manjiang	2442.82
2	Black	Loss	Zhu Jianfeng	2500.30
3	White	Loss	Zhou Keding	2418.92
4	White	Loss	Isobe Taizan	2335.21
5	White	Loss	Oosumi Yuuki	2559.43
6	Black	Loss	Iio Yoshihiro	2411.48
7	White	Win	Xu Bin	2140.12
4th All Japan Championship
Date	2009-03-21		Rating	2278.00
Round	Color	Result	Opponent
1	White	Win	Suzuki Rin	1911.87
2	White	Win	Sato Kiyotomi	2326.65
3	White	Win	Ishitani Shin-ichi	2292.38
4	White	Loss	Nakamura Shigeru	2742.21
5	White	Draw	Okabe Hiroshi	2566.11
6	White	Win	Yamaguchi Yusui	2467.42
12th Mikami Cup Tournament
Date	2009-01-18		Rating	2268.88
Round	Color	Result	Opponent
S1	White	Loss	Oosumi Yuuki	2544.12
46th Meijinsen Qualification East-Japan area 1st round
Date	2008-06-15		Rating	2239.72
Round	Color	Result	Opponent
2	White	Win	Tamada Yoichi	2195.03
ex	White	Loss	Sato Kiyotomi	2295.29
8 Kanto Renju Emperor Tournament 1st round
Date	2007-10-21		Rating	2207.47
Round	Color	Result	Opponent
2	White	Win	Kurimoto Masayuki	1789.73
4	White	Loss	Ono Takayuki	2307.27
The 5th Shanghai Renju Meijin Invitation Tournament
Date	2007-05-03		Rating	2187.83
Round	Color	Result	Opponent
1	White	Loss	Wu Hao	2545.47
2	White	Loss	Yu Manjiang	2496.50
3	White	Win	Zhang Yifeng	2361.89
SF1	White	Loss	Okabe Hiroshi	2497.61
SF2	White	Loss	Ge Chongyu	2317.24
SF3	White	Draw	Isobe Taizan	2316.00
SF4	White	Loss	Zhu Jianfeng	2429.46
2nd All Japan Championship (WC Qualification)
Date	2007-03-25		Rating	2183.39
Round	Color	Result	Opponent
1	White	Loss	Sato Kiyotomi	2269.93
2	White	Win	Maruta Hiroki	1929.69
Asian Championship
Date	2006-08-15		Rating	2161.27
Round	Color	Result	Opponent
1	White	Win	Kubo Izumi	2045.25
2	White	Loss	Park Jeong Ho	2308.93
3	White	Loss	Choi Yun-Seok	2114.58
4	Black	Loss	Ishitani Shin-ichi	2241.16
5	Black	Loss	Kim Hong Soon	2045.34
6	White	Win	Cha Jee-Young	1651.95
7	White	Win	Kang Bo-Ra	1719.60
8	White	Draw	Chang Jae-Won	2027.56
The 4th Shanghai Renju Meijin Invitation Tournament
Date	2006-03-20		Rating	2164.50
Round	Color	Result	Opponent
1	White	Loss	Ge Lingfeng	2297.22
2	White	Loss	Wu Hao	2537.38
3	White	Loss	Zhu Jianfeng	2400.09
4	White	Loss	Isobe Taizan	2283.65
5	White	Loss	Li Hongbin	2381.36
6	White	Win	Xue Wenxi	2283.88
7	White	Loss	Takashima Junya	2376.73
World Championship BT
Date	2003-08-08		Rating	2238.41
Round	Color	Result	Opponent
1	White	Draw	Rybka Ales	2148.09
2	White	Win	Chen Ko-Han	2330.08
3	White	Win	Tamura Kazumasa	2320.29
4	White	Win	Chen Wei	2424.93
5	White	Loss	Lents Johann	2370.07
6	White	Loss	Ilu Timo	2299.00
7	White	Loss	Ishitani Shin-ichi	2260.29
8	White	Loss	Chernov Sergey	2236.45
9	White	Win	Ono Takayuki	2189.48
World Championship QT
Date	2003-07-31		Rating	2238.68
Round	Color	Result	Opponent
1	White	Loss	Iio Yoshihiro	2382.21
2	White	Win	Tarannikov Yuriy	2482.14
3	White	Draw	Dzainukov Eldar	2045.57
4	White	Win	Karasyov Maxim	2396.44
5	White	Loss	Sushkov Vladimir	2577.60
6	White	Loss	Gardstrom Petter	2328.30
7	White	Loss	Ilu Timo	2296.90
World Championship BT
Date	1999-08-05		Rating	2283.26
Round	Color	Result	Opponent
1	Black	Loss	Jonsson Peter	2149.45
2	White	Win	Gaulitz Joachim	2240.55
3	White	Win	Chen Chen-Kuo	2010.92
4	White	Loss	Nara Hideki	2470.87
5	White	Win	Poghosyan Albert	2228.87
6	White	Win	Khramov Andrey	2138.08
7	White	Loss	Filippov Sergey	2255.26
8	White	Draw	Volkov Sergey	2161.27
9	White	Win	Andersson Tord	2158.73
World Championship BT
Date	1995-08-07		Rating	2325.95
Round	Color	Result	Opponent
	White	Loss	Sinyov Igor	2421.66
	Black	Win	Matyuk Valeri	2131.65
	White	Win	Fedorkin Oleg	2277.47
	White	Win	Hayakawa Yoshimi	2448.01
	White	Loss	Gurckis Gatis	2204.11
	White	Win	Na Wei	1865.36
	Black	Win	Tuvikene Margus	2277.74
World Championship BT
Date	1993-08-12		Rating	2303.65
Round	Color	Result	Opponent
	White	Loss	Tuvikene Margus	2265.41
	White	Win	Matyuk Valeri	2111.29
	Black	Win	Henningsson Anders	2162.92
	White	Loss	Palmgren Jan	2195.97
	White	Win	Maltell Tommy	1947.85
	Black	Win	Golosov Viktor	2103.03
World Championship BT
Date	1991-08-10		Rating	2297.16
Round	Color	Result	Opponent
3	White	Win	Krasnonosov Dmitry	2207.37
6	Black	Win	Zabrodin Evgeny	2168.35