Gakumazawa Hideaki (嶽間沢秀明)
Place: Iwate, Japan
Rating: 2066.74, Std: 111.89, Rank: 540
First game: 2004-12-05, Last game: 2023-05-21
Top rating: 2164.06 (2016-04-10)
Games: 163, Wins: 84, Draws: 7, Losses: 72
Gy1: 9, Gy2: 9, Gy5: 18
| 61th Meijinsen Qualification Tohoku area 1st round | ||||
|---|---|---|---|---|
| Date | 2023-05-21 | Rating | 2066.74 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Inoue Fumiya | 2472.08 |
| 2 | White | Win | Kawaai Hitoshi | 1991.31 |
| 4 | Black | Loss | Kusajima Masato | 2193.39 |
| 5 | White | Draw | Miyamoto Syunju | 2197.31 |
| 14th Tohoku Championship | ||||
| Date | 2023-02-19 | Rating | 2065.67 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kawaai Hitoshi | 1997.55 |
| 2 | Black | Loss | Miyamoto Syunju | 2187.35 |
| 3 | White | Loss | Oomura Shu | 2305.04 |
| 4 | White | Loss | Kusajima Masato | 2194.06 |
| 5 | Black | Loss | Inoue Fumiya | 2471.26 |
| 11th Tohoku Championship | ||||
| Date | 2019-10-06 | Rating | 2100.74 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Miyamoto Syunju | 2239.06 |
| 2 | White | Draw | Ishitani Shin-ichi | 2337.69 |
| 3 | Black | Win | Kusajima Masato | 2194.83 |
| 4 | Black | Loss | Hirono Masakazu | 2030.64 |
| 5 | Black | Loss | Okabe Hiroshi | 2672.57 |
| 57 Meijinsen Qualification Tohoku area 1st round | ||||
| Date | 2019-04-07 | Rating | 2106.16 | |
| Round | Color | Result | Opponent | |
| 1 | White | Draw | Miyamoto Syunju | 2225.42 |
| 2 | White | Loss | Kusajima Masato | 2219.22 |
| 4 | Black | Loss | Miyamoto Syunju | 2225.42 |
| 5 | White | Loss | Kusajima Masato | 2219.22 |
| 35 Aomori Championship | ||||
| Date | 2018-07-01 | Rating | 2132.29 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Yamamoto Harue | 1630.25 |
| 2 | Black | Loss | Miyamoto Syunju | 2217.16 |
| 3 | Black | Loss | Tanno Yoshitaka | 2114.70 |
| 56 Meijinsen Qualification Tohoku area 1st round | ||||
| Date | 2018-04-15 | Rating | 2144.35 | |
| Round | Color | Result | Opponent | |
| 2 | White | Win | Miyamoto Syunju | 2212.08 |
| 3 | White | Win | Kusajima Masato | 2252.14 |
| 4 | Black | Win | Miyamoto Syunju | 2212.08 |
| 5 | Black | Loss | Kusajima Masato | 2252.14 |
| Aomori Meijinsen Tournament | ||||
| Date | 2017-11-05 | Rating | 2151.73 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Tanno Yoshitaka | 2113.58 |
| 2 | Black | Win | Ooshina Seiichi | 1998.77 |
| 3 | White | Win | Koseki Kenshou | 1642.93 |
| 5 | White | Loss | Miyamoto Syunju | 2227.56 |
| 34 Aomori Championship | ||||
| Date | 2017-07-02 | Rating | 2163.15 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Yamamoto Harue | 1634.13 |
| 2 | Black | Win | Koseki Kenshou | 1649.70 |
| 3 | White | Win | Kusajima Masato | 2236.84 |
| 4 | White | Win | Tanno Yoshitaka | 2116.59 |
| 5 | White | Win | Miyamoto Syunju | 2219.55 |
| 55 Meijinsen Qualification Tohoku area 1st round | ||||
| Date | 2017-04-09 | Rating | 2160.08 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Miyamoto Syunju | 2206.92 |
| 3 | White | Loss | Kusajima Masato | 2240.33 |
| 4 | Black | Loss | Kusajima Masato | 2240.33 |
| 5 | White | Loss | Miyamoto Syunju | 2206.92 |
| 54 Meijinsen Qualification Tohoku area 1st round | ||||
| Date | 2016-04-10 | Rating | 2164.06 | |
| Round | Color | Result | Opponent | |
| 1 | White | Draw | Kusajima Masato | 2226.56 |
| 2 | White | Win | Miyamoto Syunju | 2129.96 |
| 3 | Black | Win | Miura Hitoshi | 1766.52 |
| 32nd Aomori Championship | ||||
| Date | 2015-07-05 | Rating | 2153.98 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Ooshina Seiichi | 2007.02 |
| 2 | Black | Loss | Tanno Yoshitaka | 2134.04 |
| 3 | White | Win | Yamamoto Harue | 1676.77 |
| 4 | Black | Loss | Kobayashi Koichi | 2247.31 |
| 5 | White | Win | Koseki Kenshou | 1672.90 |
| 7th Tohoku Championship | ||||
| Date | 2015-04-12 | Rating | 2153.94 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Okabe Hiroshi | 2691.45 |
| 2 | Black | Win | Miura Hitoshi | 1778.37 |
| 3 | Black | Loss | Ishitani Shin-ichi | 2381.72 |
| 4 | Black | Win | Miyamoto Syunju | 2052.48 |
| 5 | Black | Win | Kobayashi Koichi | 2252.60 |
| Sendai Memorial Cup | ||||
| Date | 2015-03-01 | Rating | 2151.29 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Miura Hitoshi | 1780.35 |
| 4 | White | Loss | Kobayashi Koichi | 2251.59 |
| 6 | Black | Win | Miyamoto Syunju | 2045.35 |
| 7 | White | Win | Hirono Masakazu | 1967.63 |
| 33th Aomori Meijinsen | ||||
| Date | 2014-11-09 | Rating | 2141.26 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Shimoda Hiroyasu | 1563.09 |
| 2 | White | Loss | Kobayashi Koichi | 2234.78 |
| 3 | White | Win | Yamamoto Harue | 1691.78 |
| 4 | Black | Win | Koseki Kenshou | 1682.39 |
| 5 | Black | Loss | Tanno Yoshitaka | 2134.84 |
| 6th Tohoku Championship | ||||
| Date | 2014-04-20 | Rating | 2133.73 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Kusajima Masato | 2206.01 |
| 2 | White | Win | Kobayashi Koichi | 2209.21 |
| 3 | White | Win | Hirono Masakazu | 1966.69 |
| 4 | Black | Loss | Okabe Hiroshi | 2710.10 |
| 5 | Black | Win | Sato Kiyotomi | 2431.02 |
| 7 | Black | Loss | Miura Hitoshi | 1789.72 |
| 32 Aomori Meijinsen | ||||
| Date | 2013-11-10 | Rating | 2122.75 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Yamamoto Harue | 1724.87 |
| 2 | Black | Win | Koseki Kenshou | 1678.71 |
| 3 | White | Win | Miura Hitoshi | 1786.87 |
| 4 | White | Win | Chiba Tomio | 1763.23 |
| 5 | Black | Win | Tanno Yoshitaka | 2127.25 |
| 5th Tohoku Championship | ||||
| Date | 2013-04-14 | Rating | 2109.85 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Okabe Hiroshi | 2697.02 |
| 2 | Black | Loss | Suzuki Rin | 2011.87 |
| 3 | White | Loss | Nakamura Shigeru | 2830.07 |
| 4 | Black | Win | Miura Hitoshi | 1814.71 |
| 5 | White | Loss | Kusajima Masato | 2190.52 |
| 31st Aomori Meijinsen | ||||
| Date | 2012-11-10 | Rating | 2110.89 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Yamamoto Harue | 1693.13 |
| 2 | Black | Win | Kudou Shin-ichi | 1873.54 |
| 3 | Black | Win | Asari Katsuki | 1708.31 |
| 4 | Black | Win | Miura Hitoshi | 1844.78 |
| 5 | Black | Win | Tanno Yoshitaka | 2122.72 |
| 30th Aomori Championship | ||||
| Date | 2012-07-01 | Rating | 2101.29 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Kudou Shin-ichi | 1877.43 |
| 2 | White | Win | Yamamoto Harue | 1683.56 |
| 3 | White | Draw | Kim Chang-Su | 2020.16 |
| 4 | Black | Win | Yokono Yoshiki | 1851.50 |
| 5 | White | Loss | Tanno Yoshitaka | 2121.03 |
| 4th Tohoku Championship | ||||
| Date | 2012-04-08 | Rating | 2102.02 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Kudomi Takahiro | 2389.75 |
| 2 | Black | Loss | Ozawa Tetsushi | 2038.35 |
| 3 | White | Win | Suzuki Junichiro | 1913.65 |
| 4 | Black | Win | Maruta Hiroki | 2064.97 |
| 5 | Black | Draw | Kobayashi Koichi | 2188.92 |
| 7th All Japan Championship | ||||
| Date | 2012-01-29 | Rating | 2102.25 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Ishitani Shin-ichi | 2352.34 |
| 2 | Black | Loss | Kamiya Shunsuke | 2431.52 |
| 3 | White | Win | Suzuki Rin | 1971.99 |
| 4 | Black | Loss | Kudomi Takahiro | 2388.22 |
| 5 | Black | Win | Fujikawa Masaki | 2048.22 |
| 6 | Black | Loss | Kon Akira | 1988.19 |
| 30th Aomori-Meijinsen touranament | ||||
| Date | 2011-11-13 | Rating | 2104.79 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Yamamoto Harue | 1660.98 |
| 2 | White | Win | Yamamoto Yuuichi | 1701.48 |
| 3 | Black | Win | Tsushima Norito | 1675.81 |
| 4 | Black | Win | Tanno Yoshitaka | 2103.87 |
| 5 | White | Win | Nara Tsurue | 1800.60 |
| 29th Aomori Championship | ||||
| Date | 2011-07-03 | Rating | 2100.43 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Yamamoto Harue | 1664.27 |
| 2 | Black | Win | Tanno Yoshitaka | 2094.44 |
| 3 | Black | Loss | Yokono Yoshiki | 1881.35 |
| 3rd Tohoku Championship | ||||
| Date | 2011-02-27 | Rating | 2098.29 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Yamamoto Harue | 1673.79 |
| 2 | Black | Win | Yokono Yoshiki | 1880.78 |
| 3 | Black | Loss | Miyagawa Sou | 2102.21 |
| 4 | Black | Loss | Fukui Nobuhiro | 2369.19 |
| 5 | Black | Win | Miura Hitoshi | 1903.08 |
| 14th Mikami Cup Tournament | ||||
| Date | 2011-01-30 | Rating | 2098.07 | |
| Round | Color | Result | Opponent | |
| S1 | Black | Loss | Mitsumori Masao | 2301.35 |
| S3 | White | Loss | Isobe Taizan | 2379.41 |
| S4 | Black | Loss | Ishitani Shin-ichi | 2363.76 |
| S5 | White | Loss | Ono Takayuki | 2366.30 |
| 29th Aomori-Meijinsen Tournament | ||||
| Date | 2010-11-14 | Rating | 2101.78 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Yokono Yoshiki | 1885.56 |
| 2 | Black | Win | Chiba Tomio | 1738.55 |
| 3 | Black | Win | Miura Hitoshi | 1910.18 |
| 4 | Black | Win | Yamamoto Harue | 1683.30 |
| 5 | Black | Loss | Tanno Yoshitaka | 2081.92 |
| 2nd Tohoku Championship | ||||
| Date | 2010-03-14 | Rating | 2111.10 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Hirono Masakazu | 1944.37 |
| 2 | Black | Loss | Ishitani Shin-ichi | 2366.99 |
| 3 | Black | Win | Miura Hitoshi | 1901.40 |
| 4 | White | Win | Kobayashi Koichi | 2113.95 |
| 5 | White | Win | Seiryu Masanori | 1972.53 |
| 28th Aomori-Meijinsen Tournament | ||||
| Date | 2009-11-01 | Rating | 2114.82 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Yamamoto Harue | 1690.10 |
| 2 | White | Loss | Tamada Yoichi | 2373.39 |
| 3 | White | Win | Chiba Tomio | 1738.93 |
| 4 | Black | Win | Yamamoto Yuuichi | 1698.22 |
| 5 | White | Loss | Miyagawa Sou | 2112.93 |
| 8th Middle-dan Players Tournament | ||||
| Date | 2009-08-30 | Rating | 2118.55 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Kobayashi Koichi | 2111.44 |
| 2 | Black | Loss | Koyama Jun | 2414.63 |
| 3 | Black | Loss | Maruyama Yasushi | 2229.49 |
| 4 | Black | Loss | Yamamoto Yasuhiro | 2119.42 |
| 5 | White | Loss | Kubo Izumi | 2091.17 |
| 6 | Black | Win | Kato Yasuhiro | 2029.02 |
| 1st Tohoku Championship | ||||
| Date | 2009-02-22 | Rating | 2139.21 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Miura Hitoshi | 1911.19 |
| 2 | Black | Win | Sato Ryota | 1500.55 |
| 3 | Black | Loss | Ishitani Shin-ichi | 2365.52 |
| 4 | Black | Loss | Sato Kiyotomi | 2420.13 |
| 5 | Black | Loss | Tanno Yoshitaka | 2097.46 |
| 12th Mikami Cup Tournament | ||||
| Date | 2009-01-18 | Rating | 2144.86 | |
| Round | Color | Result | Opponent | |
| A1 | Black | Win | Tamada Yoichi | 2266.34 |
| A2 | White | Win | Tomobe Katsuhiro | 2096.00 |
| A3 | Black | Win | Kobayashi Koichi | 2098.55 |
| A4 | White | Win | Tanizaki Ryusuke | 2110.32 |
| A5 | Black | Loss | Ono Takayuki | 2380.79 |
| 7th 6-7 dan Tournament | ||||
| Date | 2008-09-28 | Rating | 2148.16 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Kubo Izumi | 2088.86 |
| 2 | Black | Loss | Ono Takayuki | 2379.63 |
| 3 | Black | Loss | Kobayashi Koichi | 2093.42 |
| 4 | White | Win | Kato Yasuhiro | 1986.01 |
| 5 | White | Win | Tamura Kazumasa | 2443.76 |
| 6 | Black | Loss | Maruyama Yasushi | 2205.68 |
| 6dan 7dan Tournament | ||||
| Date | 2007-10-08 | Rating | 2149.70 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Nagao Noriaki | 2234.12 |
| 2 | White | Win | Yamamoto Yasuhiro | 2073.75 |
| 3 | Black | Win | Kato Yasuhiro | 1965.53 |
| 4 | Black | Win | Ono Takayuki | 2351.60 |
| 5 | White | Loss | Sato Kiyotomi | 2384.06 |
| 6 | Black | Loss | Tamura Kazumasa | 2390.18 |
| 5th 6-7 dan Tournament | ||||
| Date | 2004-12-05 | Rating | 2067.61 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Sato Kiyotomi | 2353.11 |
| 2 | Black | Win | Yamamoto Yasuhiro | 2036.74 |
| 3 | Black | Loss | Arita Nobuyoshi | 2269.38 |
| 4 | Black | Win | Tadokoro Hosai | 1922.07 |
| 5 | Black | Loss | Hiwatashi Kikuma | 1918.59 |
| 6 | White | Loss | Miyagawa Junzo | 2237.86 |