Yamaguchi Yusui

Place: Tokyo, Japan

Rating: 2512.16, Rank: -

First game: 1991-01-04, Last game: 2013-09-16

Top rating: 2556.03 (2012-09-17)

Games: 259, Wins: 152, Draws: 22, Losses: 85

Gy1: 0, Gy2: 0, Gy5: 0

51 Meijinsen Tournament
Date	2013-09-16		Rating	2512.16
Round	Color	Result	Opponent
1	White	Loss	Okabe Hiroshi	2661.64
2	White	Win	Hata Masayuki	2168.83
3	White	Win	Kawano Takahisa	2293.55
4	White	Win	Kawate Kozo	2028.30
5	White	Loss	Sato Kiyotomi	2383.71
6	White	Loss	Hasegawa Kazuto	2534.46
7	White	Loss	Kamiya Shunsuke	2480.21
8	White	Win	Mano Yoshihisa	2236.55
9	White	Loss	Oosumi Yuuki	2747.70
50th Meijinsen Tournament
Date	2012-09-17		Rating	2556.03
Round	Color	Result	Opponent
1	White	Draw	Hasegawa Kazuto	2504.52
2	White	Win	Nagasoe Hiroki	2446.29
3	White	Win	Iio Yoshihiro	2395.05
4	White	Draw	Nakamura Shigeru	2792.49
5	White	Loss	Nakayama Tomoharu	2541.21
6	Black	Win	Okabe Hiroshi	2627.13
7	White	Win	Ono Takayuki	2344.02
8	White	Win	Matsuura Hiroshi	2281.26
9	White	Win	Fukui Nobuhiro	2456.55
49 Meijinsen Match R3,R4
Date	2011-12-18		Rating	2554.64
Round	Color	Result	Opponent
3	White	Draw	Oosumi Yuuki	2694.22
4	White	Loss	Oosumi Yuuki	2694.22
49 Meijinsen Match R1,R2
Date	2011-10-16		Rating	2554.88
Round	Color	Result	Opponent
1	White	Win	Oosumi Yuuki	2682.10
2	White	Loss	Oosumi Yuuki	2682.10
49th Meijinsen Tournament
Date	2011-09-19		Rating	2554.28
Round	Color	Result	Opponent
1	Black	Win	Miyoshi Takeo	2091.00
2	White	Draw	Hasegawa Kazuto	2486.28
3	White	Win	Nakayama Tomoharu	2497.27
4	White	Win	Kubo Izumi	2031.60
5	White	Win	Okabe Hiroshi	2619.04
6	Black	Win	Kashihara Akihiko	2190.54
7	White	Win	Matsuura Hiroshi	2289.64
8	Black	Win	Iio Yoshihiro	2410.72
9	White	Win	Sakashita Shoichi	2075.15
49 Meijinsen Qualification East-Japan area 2nd round
Date	2011-07-10		Rating	2543.85
Round	Color	Result	Opponent
1	White	Win	Nakayama Tomoharu	2485.32
2	White	Loss	Nagao Noriaki	2359.51
3	White	Win	Kamiya Shunsuke	2370.46
4	Black	Draw	Nakamura Shigeru	2774.38
5	White	Win	Isobe Taizan	2335.25
28th Kanto Championship
Date	2011-05-22		Rating	2534.97
Round	Color	Result	Opponent
1	White	Win	Iwano Fumio	2075.05
2	Black	Win	Tomobe Katsuhiro	2153.60
3	White	Win	Ono Takayuki	2323.32
4	White	Loss	Nakamura Shigeru	2774.19
5	White	Loss	Ishitani Shin-ichi	2313.62
48th Meijinsen Tournament
Date	2010-09-20		Rating	2501.40
Round	Color	Result	Opponent
1	White	Win	Kawano Takahisa	2256.01
2	White	Loss	Ishitani Shin-ichi	2307.77
3	White	Loss	Tamada Yoichi	2407.95
4	White	Loss	Matsuura Hiroshi	2273.87
5	White	Win	Koiso Shigemasa	2090.97
6	White	Win	Sakamoto Hirouji	2248.01
7	White	Win	Iio Yoshihiro	2434.79
8	White	Loss	Oosumi Yuuki	2619.52
9	White	Win	Okabe Hiroshi	2601.29
48th Meijinsen Qualification East-Japan area 2nd round
Date	2010-07-11		Rating	2496.87
Round	Color	Result	Opponent
1	White	Win	Ono Takayuki	2319.05
2	White	Win	Tada Ayako	2161.28
3	White	Win	Kudomi Takahiro	2308.47
4	White	Loss	Tamada Yoichi	2398.34
5	White	Win	Tamura Kazumasa	2425.83
27th Kanto Championship
Date	2010-05-23		Rating	2492.27
Round	Color	Result	Opponent
1	Black	Win	Kato Yasuhiro	2023.49
2	White	Loss	Oosumi Yuuki	2590.99
3	Black	Win	Tomobe Katsuhiro	2141.11
4	White	Win	Ono Takayuki	2317.06
5	White	Loss	Nakamura Shigeru	2765.51
Team World Championship
Date	2010-05-05		Rating	2490.70
Round	Color	Result	Opponent
1	White	Loss	Tamada Yoichi	2382.23
3	White	Win	Xi Zhenyang	2392.43
4	White	Loss	Lin Huang-Yu	2585.21
5	White	Win	Nikonov Konstantin	2518.23
7	White	Loss	Soosõrv Ants	2627.00
8	White	Win	Lin Huang-Yu	2585.21
9	White	Loss	Xi Zhenyang	2392.43
10	White	Loss	Soosõrv Ants	2627.00
5th All Japan Championship
Date	2010-03-21		Rating	2489.27
Round	Color	Result	Opponent
1	White	Win	Fujikawa Masaki	1974.09
2	White	Loss	Nagao Noriaki	2337.15
3	White	Win	Miyagawa Sou	2048.64
4	White	Win	Kawasaki Nobuhiko	2144.95
5	White	Win	Iio Yoshihiro	2434.23
6	White	Win	Ishitani Shin-ichi	2310.38
13th Mikami Cup Tournament
Date	2010-01-31		Rating	2486.90
Round	Color	Result	Opponent
S1	White	Win	Tamura Kazumasa	2427.19
S3	Black	Loss	Nakamura Shigeru	2762.56
S4	White	Win	Sato Kiyotomi	2313.70
47th Meijinsen tournament
Date	2009-09-22		Rating	2475.58
Round	Color	Result	Opponent
1	White	Win	Sakamoto Hirouji	2208.87
2	Black	Loss	Iio Yoshihiro	2421.15
3	Black	Win	Tamura Kazumasa	2421.93
4	White	Win	Matsuura Hiroshi	2239.83
5	White	Loss	Kawamura Norihiko	2544.74
6	White	Win	Kataoka Mitsuaki	2142.96
7	Black	Win	Ishitani Shin-ichi	2285.08
8	White	Loss	Oosumi Yuuki	2559.84
9	White	Loss	Okabe Hiroshi	2570.46
47th Meijinsen Qualification East-Japan area final round
Date	2009-07-05		Rating	2471.95
Round	Color	Result	Opponent
1	Black	Win	Mitsumori Masao	2269.53
2	White	Win	Kudomi Takahiro	2296.47
3	White	Win	Arita Nobuyoshi	2286.63
4	White	Draw	Tamura Kazumasa	2421.70
5	Black	Win	Ono Takayuki	2302.71
26th Kanto Championship
Date	2009-05-17		Rating	2466.19
Round	Color	Result	Opponent
4	White	Loss	Isobe Taizan	2328.99
4th All Japan Championship
Date	2009-03-21		Rating	2462.41
Round	Color	Result	Opponent
1	White	Win	Tamada Yoichi	2254.23
2	White	Loss	Ono Takayuki	2304.20
3	White	Win	Iwano Fumio	2135.52
4	Black	Loss	Tamura Kazumasa	2418.27
5	Black	Win	Miyoshi Takeo	2129.06
6	Black	Loss	Mitsumori Masao	2271.06
12th Mikami Cup Tournament
Date	2009-01-18		Rating	2465.36
Round	Color	Result	Opponent
S3	White	Loss	Kawamura Norihiko	2554.10
46th Meijinsen Tournament
Date	2008-09-15		Rating	2474.80
Round	Color	Result	Opponent
1	White	Win	Oosumi Yuuki	2505.07
2	Black	Win	Kataoka Mitsuaki	2111.91
3	White	Loss	Matsuura Hiroshi	2198.19
4	White	Loss	Iio Yoshihiro	2414.89
5	White	Win	Hata Masayuki	2179.42
6	Black	Loss	Kawamura Norihiko	2557.80
7	Black	Loss	Okabe Hiroshi	2553.08
8	Black	Win	Sato Kiyotomi	2301.44
9	White	Win	Ishitani Shin-ichi	2273.81
The 45th Meijin-sen Match
Date	2007-11-24		Rating	2516.34
Round	Color	Result	Opponent
1	White	Loss	Hasegawa Kazuto	2643.00
2	White	Draw	Hasegawa Kazuto	2643.00
3	White	Loss	Hasegawa Kazuto	2643.00
The 45th Meijin-sen Tournament
Date	2007-09-17		Rating	2528.28
Round	Color	Result	Opponent
1	Black	Win	Hiwatashi Kikuma	1807.10
2	Black	Win	Oosumi Yuuki	2453.58
3	White	Win	Isobe Taizan	2315.39
4	Black	Win	Sato Kiyotomi	2252.94
5	White	Win	Matsuura Hiroshi	2175.36
6	White	Win	Okabe Hiroshi	2501.30
7	Black	Win	Kawamura Norihiko	2535.09
8	Black	Win	Miyoshi Takeo	2176.96
9	Black	Loss	Iio Yoshihiro	2431.44
World Championship AT
Date	2007-08-15		Rating	2530.72
Round	Color	Result	Opponent
1	White	Win	Purk Andry	2525.29
2	White	Win	Savrasova Yulia	2564.15
3	White	Win	Iio Yoshihiro	2432.15
4	White	Win	Oll Aivo	2555.80
5	Black	Win	Okabe Hiroshi	2495.38
6	White	Loss	Karlsson Stefan	2497.07
7	Black	Loss	Wu Di	2599.67
8	White	Win	Sushkov Vladimir	2646.91
9	White	Win	Kozhin Mikhail	2492.86
10	Black	Loss	Taimla Tunnet	2653.78
11	White	Loss	Chingin Konstantin	2679.38
The 5th Shanghai Renju Meijin Invitation Tournament
Date	2007-05-03		Rating	2523.59
Round	Color	Result	Opponent
1	White	Win	Okabe Hiroshi	2478.73
2	Black	Loss	Cao Dong	2545.47
3	White	Win	Ge Chongyu	2306.43
SF1	White	Draw	Qiu Yunfei	2397.62
SF2	White	Loss	Yu Manjiang	2486.10
SF3	Black	Draw	Wu Hao	2537.97
SF4	White	Loss	Ge Lingfeng	2347.26
2nd All Japan Championship (WC Qualification)
Date	2007-03-25		Rating	2524.55
Round	Color	Result	Opponent
1	White	Win	Nagao Noriaki	2239.40
2	White	Win	Koyama Jun	2391.84
5	White	Win	Isobe Taizan	2305.81
6	Black	Win	Oosumi Yuuki	2399.87
The 44th Meijin-sen Tournament
Date	2006-09-18		Rating	2514.78
Round	Color	Result	Opponent
1	White	Win	Okabe Hiroshi	2461.33
2	Black	Win	Ishitani Shin-ichi	2233.78
3	White	Win	Matsuura Hiroshi	2177.18
4	Black	Win	Iio Yoshihiro	2418.70
5	White	Win	Oosumi Yuuki	2347.61
6	White	Win	Fujii Naoki	1974.80
7	Black	Loss	Sato Kiyotomi	2272.12
8	White	Win	Nagao Noriaki	2222.68
9	White	Loss	Kawamura Norihiko	2561.42
Asian Championship
Date	2006-08-15		Rating	2512.21
Round	Color	Result	Opponent
1	White	Win	Choi Yun-Seok	2120.14
2	Black	Win	Lin Huang-Yu	2375.02
3	White	Win	Park Eol	2190.29
4	Black	Draw	Iio Yoshihiro	2418.53
5	Black	Loss	Kim Chang-Hoon	2444.68
6	White	Win	Kim Gyu-Hyeon	2389.41
7	Black	Draw	Okabe Hiroshi	2459.02
8	White	Loss	Kim Byoung-Jun	2422.75
The 4th Shanghai Renju Meijin Invitation Tournament
Date	2006-03-20		Rating	2507.14
Round	Color	Result	Opponent
1	White	Win	Takashima Junya	2370.17
2	Black	Win	Ge Lingfeng	2286.99
3	White	Draw	Chen Lin	2449.49
4	Black	Draw	Xue Wenxi	2273.22
5	White	Win	Cao Dong	2482.91
6	White	Win	Wu Di	2511.49
7	Black	Win	Ge Chongyu	2335.30
The 43rd Meijin-sen Tournament
Date	2005-09-19		Rating	2482.01
Round	Color	Result	Opponent
1	Black	Loss	Takashima Junya	2354.37
2	White	Win	Hasegawa Kazuto	2605.17
3	Black	Win	Oosumi Yuuki	2297.25
4	White	Win	Sato Kiyotomi	2231.37
5	Black	Draw	Tanaka Koichi	2110.74
6	White	Win	Matsuura Hiroshi	2201.79
7	White	Win	Kawate Kozo	1957.83
8	White	Win	Ishitani Shin-ichi	2255.23
9	White	Loss	Okabe Hiroshi	2440.24
World Championship QT
Date	2005-07-31		Rating	2475.42
Round	Color	Result	Opponent
1	White	Win	Cheng Wei-Yuan	2284.48
2	White	Win	Andersson Tord	2271.48
4	White	Loss	Karlsson Stefan	2446.66
5	White	Draw	Iio Yoshihiro	2395.50
6	White	Loss	Tarannikov Yuriy	2513.02
7	Black	Loss	Oosumi Yuuki	2292.77
The 42nd Meijin-sen Match
Date	2004-11-14		Rating	2467.41
Round	Color	Result	Opponent
1	Black	Loss	Kawamura Norihiko	2586.75
2	White	Loss	Kawamura Norihiko	2586.75
3	Black	Draw	Kawamura Norihiko	2586.75
4	Black	Loss	Kawamura Norihiko	2586.75
41st Meijin-sen Match
Date	2003-12-21		Rating	2477.73
Round	Color	Result	Opponent
1	White	Loss	Hasegawa Kazuto	2533.96
2	White	Win	Hasegawa Kazuto	2533.96
3	White	Loss	Hasegawa Kazuto	2533.96
4	White	Win	Hasegawa Kazuto	2533.96
5	White	Win	Hasegawa Kazuto	2533.96
World Championship AT
Date	2003-08-08		Rating	2472.93
Round	Color	Result	Opponent
1	Black	Draw	Iio Yoshihiro	2375.64
2	White	Loss	Okabe Hiroshi	2382.16
3	Black	Draw	Chingin Konstantin	2593.38
4	White	Loss	Meritee Ando	2702.50
5	White	Loss	Sinyov Igor	2472.34
6	White	Loss	Karlsson Stefan	2421.79
7	White	Win	Gaulitz Joachim	2308.97
8	White	Win	Andersson Tord	2263.08
9	White	Win	Carlsson Martin	2282.02
10	White	Loss	Sushkov Vladimir	2566.80
11	White	Loss	Taimla Tunnet	2562.68
World Championship QT
Date	2003-07-31		Rating	2473.75
Round	Color	Result	Opponent
1	White	Win	Lents Johann	2383.23
2	White	Loss	Chen Ko-Han	2334.19
3	Black	Draw	Iio Yoshihiro	2375.27
4	White	Win	Dzainukov Eldar	2044.67
5	White	Win	Ilu Timo	2315.85
6	White	Win	Makarov Pavel	2378.08
7	White	Win	Karlsson Stefan	2422.28
The 40th Meijin-sen Match
Date	2002-11-03		Rating	2487.49
Round	Color	Result	Opponent
1	White	Win	Hasegawa Kazuto	2510.57
2	White	Win	Hasegawa Kazuto	2510.57
3	White	Loss	Hasegawa Kazuto	2510.57
4	White	Win	Hasegawa Kazuto	2510.57
40th Meijin-sen Tournament
Date	2002-09-16		Rating	2485.90
Round	Color	Result	Opponent
1	White	Loss	Hasegawa Kazuto	2511.79
2	White	Win	Kudomi Takahiro	2289.11
3	White	Win	Nishimura Toshio	2216.53
4	White	Win	Matsuura Hiroshi	2186.44
5	White	Win	Okabe Hiroshi	2329.01
6	Black	Win	Iio Yoshihiro	2319.23
7	White	Draw	Ishitani Shin-ichi	2245.79
8	White	Win	Isobe Taizan	2223.31
9	White	Win	Takagawa Teiji	2239.65
The 39th Meijin-sen Tournament
Date	2001-09-24		Rating	2454.19
Round	Color	Result	Opponent
1	White	Win	Nara Hideki	2463.69
2	White	Win	Takagawa Teiji	2235.37
3	White	Draw	Hayakawa Yoshimi	2343.30
4	Black	Win	Nishimura Toshio	2240.01
5	Black	Draw	Iio Yoshihiro	2298.03
6	White	Win	Maruyama Yasushi	2105.99
7	White	Loss	Hasegawa Kazuto	2495.85
8	White	Win	Matsuura Hiroshi	2169.05
9	Black	Loss	Kudomi Takahiro	2293.16
34th Meijin-sen Tournament
Date	1996-09-23		Rating	2330.08
Round	Color	Result	Opponent
1	White	Win	Ooi Kozo	2218.62
2	White	Loss	Hasegawa Kazuto	2503.12
3	Black	Win	Isobe Taizan	2150.27
4	White	Win	Nishizono Norio	2376.92
5	White	Loss	Nishimura Toshio	2240.43
6	Black	Loss	Matsuura Hiroshi	2115.89
7	Black	Win	Sagara Takashi	2402.74
8	White	Loss	Nara Hideki	2463.77
9	White	Loss	Maruyama Yasushi	2090.23
World Championship AT
Date	1991-08-10		Rating	2343.20
Round	Color	Result	Opponent
1	Black	Loss	Palmgren Jan	2186.97
2	White	Loss	Nakamura Shigeru	2626.46
3	Black	Win	Kozhin Mikhail	2298.83
4	White	Win	Reims Aldis	2398.87
5	Black	Win	Sundling Ingvar	2288.32
6	Black	Win	Voskanyan Eduard	2282.39
7	White	Loss	Nara Hideki	2440.55
8	Black	Win	Unterweger Michael	1924.10
9	White	Win	Sinyov Igor	2234.12
10	Black	Win	Gardstrom Petter	2225.20
11	White	Win	Hasegawa Kazuto	2423.39
Leningrad 2 New Year Prize
Date	1991-01-04		Rating	2312.47
Round	Color	Result	Opponent
1	White	Win	Dvoeglazov Vladimir	2162.92
2	Black	Loss	Poghosyan Albert	2123.36
3	White	Loss	Savchenko Igor	2214.39
4	Black	Win	Ilyin Dmitry	2268.27
5	Black	Win	Bogatyryov Andrey	2014.10
6	White	Win	Filinov Vladimir	2185.60
7	Black	Win	Sirategyan Karen	2128.16
8	Black	Loss	Voskanyan Eduard	2307.28
9	White	Loss	Andersons Andris	2209.47