Yamaguchi Yusui

Place: Tokyo, Japan

Rating: 2519.41, Rank: -

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

Top rating: 2563.35 (2012-09-17)

Games: 269, Wins: 155, Draws: 24, Losses: 90

Gy1: 0, Gy2: 0, Gy5: 0

51 Meijinsen Tournament
Date	2013-09-16		Rating	2519.41
Round	Color	Result	Opponent
1	White	Loss	Okabe Hiroshi	2670.00
2	White	Win	Hata Masayuki	2173.73
3	White	Win	Kawano Takahisa	2296.71
4	White	Win	Kawate Kozo	2033.62
5	White	Loss	Sato Kiyotomi	2391.26
6	White	Loss	Hasegawa Kazuto	2541.40
7	White	Loss	Kamiya Shunsuke	2488.36
8	White	Win	Mano Yoshihisa	2244.20
9	White	Loss	Oosumi Yuuki	2755.17
50th Meijinsen Tournament
Date	2012-09-17		Rating	2563.35
Round	Color	Result	Opponent
1	White	Draw	Hasegawa Kazuto	2511.85
2	White	Win	Nagasoe Hiroki	2463.82
3	White	Win	Iio Yoshihiro	2402.67
4	White	Draw	Nakamura Shigeru	2798.32
5	White	Loss	Nakayama Tomoharu	2549.75
6	Black	Win	Okabe Hiroshi	2635.44
7	White	Win	Ono Takayuki	2351.90
8	White	Win	Matsuura Hiroshi	2288.64
9	White	Win	Fukui Nobuhiro	2464.06
49 Meijinsen Match R3,R4
Date	2011-12-18		Rating	2561.69
Round	Color	Result	Opponent
3	White	Draw	Oosumi Yuuki	2700.67
4	White	Loss	Oosumi Yuuki	2700.67
49 Meijinsen Match R1,R2
Date	2011-10-16		Rating	2561.87
Round	Color	Result	Opponent
1	White	Win	Oosumi Yuuki	2688.62
2	White	Loss	Oosumi Yuuki	2688.62
49th Meijinsen Tournament
Date	2011-09-19		Rating	2561.25
Round	Color	Result	Opponent
1	Black	Win	Miyoshi Takeo	2097.58
2	White	Draw	Hasegawa Kazuto	2493.53
3	White	Win	Nakayama Tomoharu	2504.95
4	White	Win	Kubo Izumi	2038.28
5	White	Win	Okabe Hiroshi	2627.03
6	Black	Win	Kashihara Akihiko	2197.30
7	White	Win	Matsuura Hiroshi	2296.88
8	Black	Win	Iio Yoshihiro	2418.40
9	White	Win	Sakashita Shoichi	2080.10
49 Meijinsen Qualification East-Japan area 2nd round
Date	2011-07-10		Rating	2550.75
Round	Color	Result	Opponent
1	White	Win	Nakayama Tomoharu	2492.83
2	White	Loss	Nagao Noriaki	2366.68
3	White	Win	Kamiya Shunsuke	2377.62
4	Black	Draw	Nakamura Shigeru	2776.33
5	White	Win	Isobe Taizan	2342.43
28th Kanto Championship
Date	2011-05-22		Rating	2541.83
Round	Color	Result	Opponent
1	White	Win	Iwano Fumio	2081.81
2	Black	Win	Tomobe Katsuhiro	2160.51
3	White	Win	Ono Takayuki	2330.87
4	White	Loss	Nakamura Shigeru	2775.53
5	White	Loss	Ishitani Shin-ichi	2320.61
48th Meijinsen Tournament
Date	2010-09-20		Rating	2508.14
Round	Color	Result	Opponent
1	White	Win	Kawano Takahisa	2261.31
2	White	Loss	Ishitani Shin-ichi	2314.72
3	White	Loss	Tamada Yoichi	2414.79
4	White	Loss	Matsuura Hiroshi	2281.03
5	White	Win	Koiso Shigemasa	2097.58
6	White	Win	Sakamoto Hirouji	2254.83
7	White	Win	Iio Yoshihiro	2442.25
8	White	Loss	Oosumi Yuuki	2626.40
9	White	Win	Okabe Hiroshi	2609.65
48th Meijinsen Qualification East-Japan area 2nd round
Date	2010-07-11		Rating	2503.56
Round	Color	Result	Opponent
1	White	Win	Ono Takayuki	2326.12
2	White	Win	Tada Ayako	2167.65
3	White	Win	Kudomi Takahiro	2315.29
4	White	Loss	Tamada Yoichi	2405.09
5	White	Win	Tamura Kazumasa	2432.21
27th Kanto Championship
Date	2010-05-23		Rating	2498.93
Round	Color	Result	Opponent
1	Black	Win	Kato Yasuhiro	2029.63
2	White	Loss	Oosumi Yuuki	2597.95
3	Black	Win	Tomobe Katsuhiro	2147.50
4	White	Win	Ono Takayuki	2324.08
5	White	Loss	Nakamura Shigeru	2760.96
Team World Championship
Date	2010-05-05		Rating	2497.35
Round	Color	Result	Opponent
1	White	Loss	Tamada Yoichi	2388.90
3	White	Win	Xi Zhenyang	2400.39
4	White	Loss	Lin Huang-Yu	2593.16
5	White	Win	Nikonov Konstantin	2528.03
7	White	Loss	Soosõrv Ants	2635.54
8	White	Win	Lin Huang-Yu	2593.16
9	White	Loss	Xi Zhenyang	2400.39
10	White	Loss	Soosõrv Ants	2635.54
5th All Japan Championship
Date	2010-03-21		Rating	2495.87
Round	Color	Result	Opponent
1	White	Win	Fujikawa Masaki	1980.32
2	White	Loss	Nagao Noriaki	2344.18
3	White	Win	Miyagawa Sou	2054.70
4	White	Win	Kawasaki Nobuhiko	2150.80
5	White	Win	Iio Yoshihiro	2441.61
6	White	Win	Ishitani Shin-ichi	2317.38
13th Mikami Cup Tournament
Date	2010-01-31		Rating	2493.44
Round	Color	Result	Opponent
S1	White	Win	Tamura Kazumasa	2433.67
S3	Black	Loss	Nakamura Shigeru	2754.49
S4	White	Win	Sato Kiyotomi	2319.91
47th Meijinsen tournament
Date	2009-09-22		Rating	2482.07
Round	Color	Result	Opponent
1	White	Win	Sakamoto Hirouji	2215.64
2	Black	Loss	Iio Yoshihiro	2428.68
3	Black	Win	Tamura Kazumasa	2428.54
4	White	Win	Matsuura Hiroshi	2247.03
5	White	Loss	Kawamura Norihiko	2552.31
6	White	Win	Kataoka Mitsuaki	2146.41
7	Black	Win	Ishitani Shin-ichi	2292.24
8	White	Loss	Oosumi Yuuki	2567.09
9	White	Loss	Okabe Hiroshi	2582.16
47th Meijinsen Qualification East-Japan area final round
Date	2009-07-05		Rating	2478.34
Round	Color	Result	Opponent
1	Black	Win	Mitsumori Masao	2277.51
2	White	Win	Kudomi Takahiro	2303.04
3	White	Win	Arita Nobuyoshi	2292.82
4	White	Draw	Tamura Kazumasa	2428.28
5	Black	Win	Ono Takayuki	2309.53
26th Kanto Championship
Date	2009-05-17		Rating	2472.52
Round	Color	Result	Opponent
4	White	Loss	Isobe Taizan	2336.54
4th All Japan Championship
Date	2009-03-21		Rating	2468.65
Round	Color	Result	Opponent
1	White	Win	Tamada Yoichi	2260.60
2	White	Loss	Ono Takayuki	2310.89
3	White	Win	Iwano Fumio	2141.64
4	Black	Loss	Tamura Kazumasa	2424.70
5	Black	Win	Miyoshi Takeo	2135.83
6	Black	Loss	Mitsumori Masao	2279.20
12th Mikami Cup Tournament
Date	2009-01-18		Rating	2471.50
Round	Color	Result	Opponent
S3	White	Loss	Kawamura Norihiko	2561.23
46th Meijinsen Tournament
Date	2008-09-15		Rating	2480.71
Round	Color	Result	Opponent
1	White	Win	Oosumi Yuuki	2512.42
2	Black	Win	Kataoka Mitsuaki	2115.86
3	White	Loss	Matsuura Hiroshi	2205.52
4	White	Loss	Iio Yoshihiro	2422.63
5	White	Win	Hata Masayuki	2186.19
6	Black	Loss	Kawamura Norihiko	2565.07
7	Black	Loss	Okabe Hiroshi	2570.59
8	Black	Win	Sato Kiyotomi	2308.28
9	White	Win	Ishitani Shin-ichi	2280.98
The 45th Meijin-sen Match
Date	2007-11-24		Rating	2521.14
Round	Color	Result	Opponent
1	White	Loss	Hasegawa Kazuto	2650.58
2	White	Draw	Hasegawa Kazuto	2650.58
3	White	Loss	Hasegawa Kazuto	2650.58
The 45th Meijin-sen Tournament
Date	2007-09-17		Rating	2532.79
Round	Color	Result	Opponent
1	Black	Win	Hiwatashi Kikuma	1808.83
2	Black	Win	Oosumi Yuuki	2460.74
3	White	Win	Isobe Taizan	2322.82
4	Black	Win	Sato Kiyotomi	2259.96
5	White	Win	Matsuura Hiroshi	2182.85
6	White	Win	Okabe Hiroshi	2519.78
7	Black	Win	Kawamura Norihiko	2542.44
8	Black	Win	Miyoshi Takeo	2184.61
9	Black	Loss	Iio Yoshihiro	2439.31
World Championship AT
Date	2007-08-15		Rating	2534.97
Round	Color	Result	Opponent
1	White	Win	Purk Andry	2533.23
2	White	Win	Savrasova Yulia	2572.11
3	White	Win	Iio Yoshihiro	2440.02
4	White	Win	Oll Aivo	2563.51
5	Black	Win	Okabe Hiroshi	2513.77
6	White	Loss	Karlsson Stefan	2504.39
7	Black	Loss	Wu Di	2609.64
8	White	Win	Sushkov Vladimir	2655.06
9	White	Win	Kozhin Mikhail	2501.14
10	Black	Loss	Taimla Tunnet	2661.42
11	White	Loss	Chingin Konstantin	2687.33
The 5th Shanghai Renju Meijin Invitation Tournament
Date	2007-05-03		Rating	2526.50
Round	Color	Result	Opponent
1	White	Win	Okabe Hiroshi	2498.58
2	Black	Loss	Cao Dong	2554.61
3	White	Win	Ge Chongyu	2317.96
SF1	White	Draw	Qiu Yunfei	2406.97
SF2	White	Loss	Yu Manjiang	2497.26
SF3	Black	Draw	Wu Hao	2546.28
SF4	White	Loss	Ge Lingfeng	2360.76
2nd All Japan Championship (WC Qualification)
Date	2007-03-25		Rating	2526.72
Round	Color	Result	Opponent
1	White	Win	Nagao Noriaki	2245.12
2	White	Win	Koyama Jun	2397.69
5	White	Win	Isobe Taizan	2313.19
6	Black	Win	Oosumi Yuuki	2406.78
The 44th Meijin-sen Tournament
Date	2006-09-18		Rating	2513.14
Round	Color	Result	Opponent
1	White	Win	Okabe Hiroshi	2481.41
2	Black	Win	Ishitani Shin-ichi	2241.66
3	White	Win	Matsuura Hiroshi	2184.71
4	Black	Win	Iio Yoshihiro	2426.28
5	White	Win	Oosumi Yuuki	2354.35
6	White	Win	Fujii Naoki	1977.31
7	Black	Loss	Sato Kiyotomi	2279.07
8	White	Win	Nagao Noriaki	2228.15
9	White	Loss	Kawamura Norihiko	2568.51
Asian Championship
Date	2006-08-15		Rating	2509.64
Round	Color	Result	Opponent
1	White	Win	Choi Yun-Seok	2115.26
2	Black	Win	Lin Huang-Yu	2380.82
3	White	Win	Park Eol	2194.23
4	Black	Draw	Iio Yoshihiro	2426.10
5	Black	Loss	Kim Chang-Hoon	2452.09
6	White	Win	Kim Gyu-Hyeon	2394.88
7	Black	Draw	Okabe Hiroshi	2479.20
8	White	Loss	Kim Byoung-Jun	2428.52
The 4th Shanghai Renju Meijin Invitation Tournament
Date	2006-03-20		Rating	2499.48
Round	Color	Result	Opponent
1	White	Win	Takashima Junya	2377.57
2	Black	Win	Ge Lingfeng	2297.92
3	White	Draw	Chen Lin	2459.29
4	Black	Draw	Xue Wenxi	2284.55
5	White	Win	Cao Dong	2491.50
6	White	Win	Wu Di	2520.10
7	Black	Win	Ge Chongyu	2346.00
6th Kanto Renju Emperor Tournament
Date	2005-12-04		Rating	2480.03
Round	Color	Result	Opponent
1	Black	Loss	Okabe Hiroshi	2472.15
2	White	Win	Okabe Hiroshi	2472.15
3	Black	Draw	Okabe Hiroshi	2472.15
4	White	Loss	Okabe Hiroshi	2472.15
The 43rd Meijin-sen Tournament
Date	2005-09-19		Rating	2469.17
Round	Color	Result	Opponent
1	Black	Loss	Takashima Junya	2361.75
2	White	Win	Hasegawa Kazuto	2612.34
3	Black	Win	Oosumi Yuuki	2303.28
4	White	Win	Sato Kiyotomi	2238.18
5	Black	Draw	Tanaka Koichi	2116.55
6	White	Win	Matsuura Hiroshi	2209.50
7	White	Win	Kawate Kozo	1962.79
8	White	Win	Ishitani Shin-ichi	2264.70
9	White	Loss	Okabe Hiroshi	2466.89
World Championship QT
Date	2005-07-31		Rating	2461.59
Round	Color	Result	Opponent
1	White	Win	Cheng Wei-Yuan	2284.09
2	White	Win	Andersson Tord	2277.10
4	White	Loss	Karlsson Stefan	2453.07
5	White	Draw	Iio Yoshihiro	2403.09
6	White	Loss	Tarannikov Yuriy	2518.56
7	Black	Loss	Oosumi Yuuki	2298.65
5th Kanto Renju Emperor Tournament - Final
Date	2005-01-30		Rating	2450.40
Round	Color	Result	Opponent
1	Black	Loss	Okabe Hiroshi	2444.61
2	White	Loss	Okabe Hiroshi	2444.61
The 42nd Meijin-sen Match
Date	2004-11-14		Rating	2451.48
Round	Color	Result	Opponent
1	Black	Loss	Kawamura Norihiko	2593.07
2	White	Loss	Kawamura Norihiko	2593.07
3	Black	Draw	Kawamura Norihiko	2593.07
4	Black	Loss	Kawamura Norihiko	2593.07
4th Kanto Renju Emperor Tournament - Final
Date	2004-02-29		Rating	2469.12
Round	Color	Result	Opponent
1	White	Draw	Okabe Hiroshi	2408.37
2	White	Loss	Okabe Hiroshi	2408.37
3	White	Win	Okabe Hiroshi	2408.37
4	White	Win	Okabe Hiroshi	2408.37
41st Meijin-sen Match
Date	2003-12-21		Rating	2473.09
Round	Color	Result	Opponent
1	White	Loss	Hasegawa Kazuto	2540.34
2	White	Win	Hasegawa Kazuto	2540.34
3	White	Loss	Hasegawa Kazuto	2540.34
4	White	Win	Hasegawa Kazuto	2540.34
5	White	Win	Hasegawa Kazuto	2540.34
World Championship AT
Date	2003-08-08		Rating	2470.94
Round	Color	Result	Opponent
1	Black	Draw	Iio Yoshihiro	2383.19
2	White	Loss	Okabe Hiroshi	2397.04
3	Black	Draw	Chingin Konstantin	2600.54
4	White	Loss	Meritee Ando	2711.92
5	White	Loss	Sinyov Igor	2484.96
6	White	Loss	Karlsson Stefan	2426.34
7	White	Win	Gaulitz Joachim	2313.51
8	White	Win	Andersson Tord	2266.33
9	White	Win	Carlsson Martin	2276.25
10	White	Loss	Sushkov Vladimir	2578.50
11	White	Loss	Taimla Tunnet	2570.90
World Championship QT
Date	2003-07-31		Rating	2471.84
Round	Color	Result	Opponent
1	White	Win	Lents Johann	2368.57
2	White	Loss	Chen Ko-Han	2329.56
3	Black	Draw	Iio Yoshihiro	2382.81
4	White	Win	Dzainukov Eldar	2046.53
5	White	Win	Ilu Timo	2297.46
6	White	Win	Makarov Pavel	2389.67
7	White	Win	Karlsson Stefan	2426.80
The 40th Meijin-sen Match
Date	2002-11-03		Rating	2488.25
Round	Color	Result	Opponent
1	White	Win	Hasegawa Kazuto	2517.81
2	White	Win	Hasegawa Kazuto	2517.81
3	White	Loss	Hasegawa Kazuto	2517.81
4	White	Win	Hasegawa Kazuto	2517.81
40th Meijin-sen Tournament
Date	2002-09-16		Rating	2486.99
Round	Color	Result	Opponent
1	White	Loss	Hasegawa Kazuto	2519.26
2	White	Win	Kudomi Takahiro	2293.79
3	White	Win	Nishimura Toshio	2222.44
4	White	Win	Matsuura Hiroshi	2193.56
5	White	Win	Okabe Hiroshi	2341.82
6	Black	Win	Iio Yoshihiro	2325.96
7	White	Draw	Ishitani Shin-ichi	2262.72
8	White	Win	Isobe Taizan	2225.56
9	White	Win	Takagawa Teiji	2247.35
The 39th Meijin-sen Tournament
Date	2001-09-24		Rating	2456.13
Round	Color	Result	Opponent
1	White	Win	Nara Hideki	2459.89
2	White	Win	Takagawa Teiji	2243.05
3	White	Draw	Hayakawa Yoshimi	2348.18
4	Black	Win	Nishimura Toshio	2245.38
5	Black	Draw	Iio Yoshihiro	2304.44
6	White	Win	Maruyama Yasushi	2110.53
7	White	Loss	Hasegawa Kazuto	2505.38
8	White	Win	Matsuura Hiroshi	2175.42
9	Black	Loss	Kudomi Takahiro	2297.49
34th Meijin-sen Tournament
Date	1996-09-23		Rating	2332.42
Round	Color	Result	Opponent
1	White	Win	Ooi Kozo	2220.66
2	White	Loss	Hasegawa Kazuto	2510.34
3	Black	Win	Isobe Taizan	2145.75
4	White	Win	Nishizono Norio	2382.34
5	White	Loss	Nishimura Toshio	2243.88
6	Black	Loss	Matsuura Hiroshi	2120.48
7	Black	Win	Sagara Takashi	2408.97
8	White	Loss	Nara Hideki	2453.36
9	White	Loss	Maruyama Yasushi	2092.91
World Championship AT
Date	1991-08-10		Rating	2346.61
Round	Color	Result	Opponent
1	Black	Loss	Palmgren Jan	2185.10
2	White	Loss	Nakamura Shigeru	2631.23
3	Black	Win	Kozhin Mikhail	2307.68
4	White	Win	Reims Aldis	2400.76
5	Black	Win	Sundling Ingvar	2287.08
6	Black	Win	Voskanyan Eduard	2295.18
7	White	Loss	Nara Hideki	2441.44
8	Black	Win	Unterweger Michael	1923.47
9	White	Win	Sinyov Igor	2248.41
10	Black	Win	Gardstrom Petter	2227.38
11	White	Win	Hasegawa Kazuto	2425.75
Leningrad 2 New Year Prize
Date	1991-01-04		Rating	2315.79
Round	Color	Result	Opponent
1	White	Win	Dvoeglazov Vladimir	2156.38
2	Black	Loss	Poghosyan Albert	2132.54
3	White	Loss	Savchenko Igor	2232.72
4	Black	Win	Ilyin Dmitry	2268.62
5	Black	Win	Bogatyryov Andrey	1996.93
6	White	Win	Filinov Vladimir	2196.55
7	Black	Win	Sirategyan Karen	2113.92
8	Black	Loss	Voskanyan Eduard	2320.80
9	White	Loss	Andersons Andris	2209.56