Mitsumori Masao (三森政男)

Place: Hasuta, Japan

Rating: 2256.22, Rank: 244

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

Top rating: 2307.55 (2012-01-29)

Games: 236, Wins: 105, Draws: 15, Losses: 116

Gy1: 0, Gy2: 0, Gy5: 8

57 Meijinsen Qualification Kanto area 1st round
Date 2019-05-12 Rating 2256.22
Round Color Result Opponent
1 White Loss Maruta Hiroki 2127.30
2 White Loss Inoue Fumiya 2356.51
3 White Win Iwano Fumio 2145.87
4 White Win Maruta Koji 2072.91
56 Meijinsen Qualification Kanto area 1st round
Date 2018-05-13 Rating 2267.93
Round Color Result Opponent
1 White Win Koyama Jun 2516.18
2 White Loss Sato Kiyotomi 2380.82
3 Black Win Iwano Fumio 2191.12
4 Black Loss Ono Takayuki 2320.86
55 Meijinsen Qualification Kanto area 1st round
Date 2017-05-21 Rating 2268.01
Round Color Result Opponent
1 Black Draw Chigira Makoto 2003.53
2 White Win Iwano Fumio 2204.88
3 White Loss Ono Takayuki 2310.14
4 White Loss Sato Kiyotomi 2406.57
54 Meijinsen Qualification East Japan area 2nd round
Date 2016-06-12 Rating 2284.93
Round Color Result Opponent
1 Black Loss Tamada Yoichi 2496.07
2 White Loss Okabe Hiroshi 2653.10
3 White Loss Kamiya Shunsuke 2657.51
4 White Draw Koyama Jun 2555.99
5 White Win Kusajima Masato 2207.45
54 Meijinsen Qualification Kanto area 1st round
Date 2016-05-22 Rating 2285.54
Round Color Result Opponent
1 White Win Chigira Makoto 1991.93
2 White Win Kamiya Shunsuke 2655.47
3 White Loss Sato Kiyotomi 2443.62
4 White Win Maruta Koji 2117.54
53 Meijinsen Qualification East Japan area 1st round
Date 2015-05-10 Rating 2267.33
Round Color Result Opponent
1 White Loss Koyama Jun 2544.87
2 White Loss Nakamura Souta 2219.40
3 Black Win Chigira Makoto 1967.26
4 Black Win Fujikawa Masaki 2045.15
10th All Japan Championship
Date 2015-03-29 Rating 2266.46
Round Color Result Opponent
1 White Win Fujita Yudai 2321.64
2 White Loss Tamada Yoichi 2507.94
3 White Win Kubo Izumi 2030.62
4 White Loss Koyama Jun 2537.91
5 White Loss Tanizaki Ryusuke 2137.61
6 White Loss Miyagawa Junzo 2178.39
1st Senior Masters Championship
Date 2014-08-29 Rating 2276.09
Round Color Result Opponent
1 White Win Miyagawa Junzo 2160.29
2 Black Loss Ishitani Shin-ichi 2379.30
3 Black Win Miura Hitoshi 1764.45
4 White Win Kubo Izumi 2033.31
5 White Loss Isobe Taizan 2363.27
6 White Win Kobayashi Koichi 2195.06
7 White Win Kato Yasuhiro 2032.82
52 Meijinsen Qualification East Japan area 1st round
Date 2014-06-08 Rating 2277.16
Round Color Result Opponent
1 White Loss Tamada Yoichi 2486.42
2 White Loss Kawamura Norihiko 2582.56
3 White Win Iwano Fumio 2195.21
4 White Win Kudomi Takahiro 2265.88
Team World Championship
Date 2014-05-03 Rating 2276.31
Round Color Result Opponent
5 White Loss Artemyev Sergey 2525.08
6 White Loss Oosumi Yuuki 2750.51
51 Meijinsen Qualification East-Japan area 2nd round
Date 2013-07-21 Rating 2275.02
Round Color Result Opponent
1 White Loss Kudomi Takahiro 2322.81
2 Black Win Tomobe Katsuhiro 2101.00
3 White Win Kato Yasuhiro 2070.47
4 White Loss Sato Kiyotomi 2397.42
5 White Loss Kamiya Shunsuke 2489.33
51 Meijinsen Qualification East-Japan area 1st round
Date 2013-06-16 Rating 2276.12
Round Color Result Opponent
1 White Loss Kato Yasuhiro 2076.55
2 White Win Kobayashi Koichi 2162.79
3 White Loss Kamiya Shunsuke 2483.99
4 White Win Ono Takayuki 2325.80
29th Kanto Championship
Date 2013-05-12 Rating 2277.43
Round Color Result Opponent
1 White Draw Tada Ayako 2234.93
2 White Draw Isobe Taizan 2338.55
3 Black Loss Nakamura Shigeru 2798.27
4 White Win Tomobe Katsuhiro 2107.01
5 White Loss Kato Yasuhiro 2079.01
8th All Japan Championship
Date 2013-03-24 Rating 2281.10
Round Color Result Opponent
1 White Loss Nakamura Shigeru 2799.40
2 White Win Kubo Izumi 2032.86
3 White Win Kato Yasuhiro 2076.36
4 White Loss Isobe Taizan 2344.29
5 White Win Kudomi Takahiro 2346.57
6 White Loss Kamiya Shunsuke 2471.43
16th Mikami Cup Tournament
Date 2013-01-20 Rating 2284.36
Round Color Result Opponent
S1 White Loss Okabe Hiroshi 2651.63
S2 White Loss Fukui Nobuhiro 2494.19
S3 White Win Kobayashi Koichi 2159.59
S4 White Win Ishitani Shin-ichi 2312.55
S5 Black Loss Kudomi Takahiro 2349.12
13 Kanto Renju Emperor Tournament 1st round
Date 2012-10-21 Rating 2288.25
Round Color Result Opponent
1 White Win Kato Yasuhiro 2053.16
2 White Loss Maruta Koji 2091.15
3 White Loss Ono Takayuki 2357.26
4 White Win Maruta Hiroki 2064.34
50 Meijinsen Qualification East-Japan area 1st round
Date 2012-06-03 Rating 2301.90
Round Color Result Opponent
1 Black Win Maruta Koji 2077.57
2 White Win Sato Kiyotomi 2340.41
3 Black Loss Nakamura Shigeru 2808.27
4 White Loss Kudomi Takahiro 2355.10
29th Kanto Championship
Date 2012-05-13 Rating 2303.48
Round Color Result Opponent
1 Black Win Kato Yasuhiro 2027.12
2 White Loss Kudomi Takahiro 2355.10
3 White Win Nakayama Tomoharu 2549.33
4 White Loss Nakamura Shigeru 2807.97
5 White Win Iwano Fumio 2087.50
15th Mikami Cup Tournament
Date 2012-03-11 Rating 2304.88
Round Color Result Opponent
S2 White Loss Oosumi Yuuki 2718.73
S3 White Win Tadokoro Hosai 1845.76
S4 White Loss Nakamura Shigeru 2802.80
S5 Black Loss Ishitani Shin-ichi 2316.04
7th All Japan Championship
Date 2012-01-29 Rating 2307.55
Round Color Result Opponent
1 Black Win Suzuki Rin 1949.16
2 White Loss Iio Yoshihiro 2420.54
3 White Win Kobayashi Koichi 2152.20
4 White Win Ishitani Shin-ichi 2320.24
5 White Loss Oosumi Yuuki 2715.38
6 White Win Tamada Yoichi 2425.43
12 Kanto Renju Emperor Tournament 2nd round
Date 2012-01-15 Rating 2307.24
Round Color Result Opponent
1 White Win Nakayama Tomoharu 2532.61
2 White Loss Okabe Hiroshi 2631.59
3 White Loss Nakamura Shigeru 2799.27
4 White Loss Oosumi Yuuki 2713.88
5 White Loss Kamiya Shunsuke 2411.48
12 Kanto Renju Emperor Tournament 1st round
Date 2011-10-23 Rating 2304.42
Round Color Result Opponent
1 White Win Kobayashi Koichi 2135.89
2 White Loss Kamiya Shunsuke 2400.46
3 White Win Ono Takayuki 2345.74
4 White Win Kudomi Takahiro 2347.16
49 Meijinsen Qualification East-Japan area 1st round
Date 2011-06-12 Rating 2289.79
Round Color Result Opponent
1 White Loss Nagao Noriaki 2373.95
2 White Loss Ono Takayuki 2339.17
3 White Loss Kudomi Takahiro 2338.42
4 White Win Maruta Hiroki 2059.11
28th Kanto Championship
Date 2011-05-22 Rating 2289.09
Round Color Result Opponent
1 White Loss Fujikawa Masaki 2033.90
2 Black Win Maruta Hiroki 2060.92
3 White Loss Tomobe Katsuhiro 2167.85
4 White Win Ono Takayuki 2338.79
5 White Win Nakayama Tomoharu 2487.58
14th Mikami Cup Tournament
Date 2011-01-30 Rating 2284.85
Round Color Result Opponent
S1 White Win Gakumazawa Hideaki 2039.66
S2 White Loss Oosumi Yuuki 2662.90
S3 White Loss Ono Takayuki 2337.83
S5 Black Loss Nakamura Shigeru 2776.59
11 Kanto Renju Emperor Tournament 2nd round
Date 2010-11-21 Rating 2284.21
Round Color Result Opponent
5 White Win Fukui Nobuhiro 2295.28
11 Kanto Renju Emperor Tournament 1st round
Date 2010-10-31 Rating 2283.22
Round Color Result Opponent
1 White Win Iwano Fumio 2080.45
2 White Win Nagao Noriaki 2362.51
3 White Loss Okabe Hiroshi 2616.32
4 White Win Ono Takayuki 2334.55
Meijinsen Qualification East-Japan area 1st round
Date 2010-06-27 Rating 2265.13
Round Color Result Opponent
1 Black Win Kato Yasuhiro 2030.91
2 White Win Fukui Nobuhiro 2264.39
3 White Draw Isobe Taizan 2340.49
4 White Loss Ono Takayuki 2333.01
27th Kanto Championship
Date 2010-05-23 Rating 2259.05
Round Color Result Opponent
1 White Loss Tomobe Katsuhiro 2154.37
2 Black Win Maruta Hiroki 2041.85
3 White Loss Ono Takayuki 2331.47
4 White Loss Nagao Noriaki 2352.36
5 Black Loss Fukui Nobuhiro 2258.82
5th All Japan Championship
Date 2010-03-21 Rating 2256.01
Round Color Result Opponent
1 White Loss Shimoyama Takuma 2200.03
2 White Draw Kawasaki Nobuhiko 2157.44
3 White Loss Kobayashi Koichi 2077.97
4 White Loss Tada Ayako 2170.83
5 White Win Matsuoka Teruo 1955.77
6 Black Win Kuramoto Hideharu 1891.19
13th Mikami Cup Tournament
Date 2010-01-31 Rating 2260.24
Round Color Result Opponent
S1 White Loss Ono Takayuki 2322.62
47th Meijinsen Qualification East-Japan area final round
Date 2009-07-05 Rating 2284.82
Round Color Result Opponent
1 White Loss Yamaguchi Yusui 2486.00
2 White Win Ono Takayuki 2316.60
3 White Win Kudomi Takahiro 2310.37
4 White Draw Arita Nobuyoshi 2299.35
5 White Draw Tamura Kazumasa 2435.40
47th Meijinsen Qualification East-Japan area 1st round
Date 2009-06-14 Rating 2285.62
Round Color Result Opponent
1 White Win Ono Takayuki 2316.97
2 Black Loss Sato Kiyotomi 2337.53
3 White Win Kudomi Takahiro 2310.83
4 White Loss Tamura Kazumasa 2436.51
26th Kanto Championship
Date 2009-05-17 Rating 2285.93
Round Color Result Opponent
5 White Win Iwano Fumio 2136.26
The 6th Shanghai Renju Meijin Invitation Tournament
Date 2009-05-03 Rating 2285.77
Round Color Result Opponent
1 Black Win Yu Manjiang 2454.59
2 Black Loss Zhu Jianfeng 2499.66
3 White Loss Zhou Keding 2446.73
4 White Loss Isobe Taizan 2344.64
5 White Loss Oosumi Yuuki 2567.55
6 Black Loss Iio Yoshihiro 2420.46
7 White Win Xu Bin 2156.06
4th All Japan Championship
Date 2009-03-21 Rating 2286.45
Round Color Result Opponent
1 White Win Suzuki Rin 1919.56
2 White Win Sato Kiyotomi 2335.52
3 White Win Ishitani Shin-ichi 2301.00
4 White Loss Nakamura Shigeru 2750.85
5 White Draw Okabe Hiroshi 2573.58
6 White Win Yamaguchi Yusui 2476.30
12th Mikami Cup Tournament
Date 2009-01-18 Rating 2277.20
Round Color Result Opponent
S1 White Loss Oosumi Yuuki 2552.33
46th Meijinsen Qualification East-Japan area 1st round
Date 2008-06-15 Rating 2247.55
Round Color Result Opponent
2 White Win Tamada Yoichi 2202.62
ex White Loss Sato Kiyotomi 2303.98
8 Kanto Renju Emperor Tournament 1st round
Date 2007-10-21 Rating 2214.76
Round Color Result Opponent
2 White Win Kurimoto Masayuki 1791.87
4 White Loss Ono Takayuki 2315.11
The 5th Shanghai Renju Meijin Invitation Tournament
Date 2007-05-03 Rating 2194.74
Round Color Result Opponent
1 White Loss Wu Hao 2554.79
2 White Loss Yu Manjiang 2507.46
3 White Win Zhang Yifeng 2360.33
SF1 White Loss Okabe Hiroshi 2505.68
SF2 White Loss Ge Chongyu 2323.18
SF3 White Draw Isobe Taizan 2326.47
SF4 White Loss Zhu Jianfeng 2433.67
2nd All Japan Championship (WC Qualification)
Date 2007-03-25 Rating 2190.23
Round Color Result Opponent
1 White Loss Sato Kiyotomi 2278.46
2 White Win Maruta Hiroki 1937.05
Asian Championship
Date 2006-08-15 Rating 2167.64
Round Color Result Opponent
1 White Win Kubo Izumi 2053.98
2 White Loss Park Jeong Ho 2318.10
3 White Loss Choi Yun-Seok 2128.77
4 Black Loss Ishitani Shin-ichi 2249.53
5 Black Loss Kim Su Chan 2053.47
6 White Win Cha Jee-Young 1655.46
7 White Win Kang Bo-Ra 1723.13
8 White Draw Chang Jae-Won 2033.06
The 4th Shanghai Renju Meijin Invitation Tournament
Date 2006-03-20 Rating 2170.34
Round Color Result Opponent
1 White Loss Ge Lingfeng 2306.08
2 White Loss Wu Hao 2547.03
3 White Loss Zhu Jianfeng 2406.22
4 White Loss Isobe Taizan 2296.84
5 White Loss Li Hongbin 2387.95
6 White Win Xue Wenxi 2293.29
7 White Loss Takashima Junya 2385.62
World Championship BT
Date 2003-08-08 Rating 2239.16
Round Color Result Opponent
1 White Draw Rybka Ales 2156.14
2 White Win Chen Ko-Han 2335.06
3 White Win Tamura Kazumasa 2328.02
4 White Win Chen Wei 2428.84
5 White Loss Lents Johann 2367.60
6 White Loss Ilu Timo 2298.45
7 White Loss Ishitani Shin-ichi 2269.52
8 White Loss Chernov Sergey 2246.94
9 White Win Ono Takayuki 2197.46
World Championship QT
Date 2003-07-31 Rating 2239.35
Round Color Result Opponent
1 White Loss Iio Yoshihiro 2391.66
2 White Win Tarannikov Yuriy 2461.53
3 White Draw Dzainukov Eldar 2088.18
4 White Win Karasyov Maxim 2400.35
5 White Loss Sushkov Vladimir 2584.58
6 White Loss Gardstrom Petter 2336.64
7 White Loss Ilu Timo 2296.48
World Championship BT
Date 1999-08-05 Rating 2263.88
Round Color Result Opponent
1 Black Loss Jonsson Peter 2154.96
2 White Win Gaulitz Joachim 2250.10
3 White Win Chen Chen-Kuo 2029.74
4 White Loss Nara Hideki 2474.50
5 White Win Poghosyan Albert 2237.45
6 White Win Khramov Andrey 2127.75
7 White Loss Filippov Sergey 2273.86
8 White Draw Volkov Sergey 2171.03
9 White Win Andersson Tord 2169.73
“Compaq Cup” International Invitational Tournament
Date 1997-05-10 Rating 2257.49
Round Color Result Opponent
1 White Win Li Dong 2028.03
2 White Win Ishitani Shin-ichi 2222.44
3 Black Loss Nara Hideki 2453.92
4 White Win Su Liang 1924.48
5 Black Draw Karlsson Stefan 2354.17
6 White Loss Isobe Taizan 2278.61
7 White Loss Zhang Jinyu 2199.36
8 White Loss Deng Jinghui 2062.52
9 White Win Yu Jingping 1950.80
World Championship BT
Date 1995-08-07 Rating 2299.24
Round Color Result Opponent
White Loss Sinyov Igor 2430.54
Black Win Matyuk Valeri 2137.13
White Win Fedorkin Oleg 2281.08
White Win Hayakawa Yoshimi 2453.23
White Loss Gurckis Gatis 2213.21
White Win Na Wei 1869.43
Black Win Tuvikene Margus 2288.41
World Championship BT
Date 1993-08-12 Rating 2287.96
Round Color Result Opponent
White Loss Tuvikene Margus 2274.38
White Win Matyuk Valeri 2116.35
Black Win Henningsson Anders 2168.61
White Loss Palmgren Jan 2195.75
White Win Maltell Tommy 1952.60
Black Win Golosov Viktor 2121.34
World Championship BT
Date 1991-08-10 Rating 2284.16
Round Color Result Opponent
3 White Win Krasnonosov Dmitry 2214.85
6 Black Win Zabrodin Evgeny 2162.01