Gakumazawa Hideaki (嶽間沢秀明)
Place: Iwate, Japan
Rating: 2047.91, Std: 119.61, Rank: 514
First game: 2004-12-05, Last game: 2023-02-19
Top rating: 2159.21 (2016-04-10)
Games: 159, Wins: 83, Draws: 6, Losses: 70
Gy1: 5, Gy2: 5, Gy5: 21
| 14th Tohoku Championship | ||||
|---|---|---|---|---|
| Date | 2023-02-19 | Rating | 2047.91 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kawaai Hitoshi | 2021.51 |
| 2 | Black | Loss | Miyamoto Syunju | 2147.46 |
| 3 | White | Loss | Oomura Shu | 2304.23 |
| 4 | White | Loss | Kusajima Masato | 2183.19 |
| 5 | Black | Loss | Inoue Fumiya | 2484.87 |
| 11th Tohoku Championship | ||||
| Date | 2019-10-06 | Rating | 2091.31 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Miyamoto Syunju | 2231.22 |
| 2 | White | Draw | Ishitani Shin-ichi | 2334.17 |
| 3 | Black | Win | Kusajima Masato | 2188.03 |
| 4 | Black | Loss | Hirono Masakazu | 2025.02 |
| 5 | Black | Loss | Okabe Hiroshi | 2667.03 |
| 57 Meijinsen Qualification Tohoku area 1st round | ||||
| Date | 2019-04-07 | Rating | 2097.74 | |
| Round | Color | Result | Opponent | |
| 1 | White | Draw | Miyamoto Syunju | 2218.92 |
| 2 | White | Loss | Kusajima Masato | 2213.24 |
| 4 | Black | Loss | Miyamoto Syunju | 2218.92 |
| 5 | White | Loss | Kusajima Masato | 2213.24 |
| 35 Aomori Championship | ||||
| Date | 2018-07-01 | Rating | 2125.17 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Yamamoto Harue | 1626.92 |
| 2 | Black | Loss | Miyamoto Syunju | 2211.76 |
| 3 | Black | Loss | Tanno Yoshitaka | 2109.77 |
| 56 Meijinsen Qualification Tohoku area 1st round | ||||
| Date | 2018-04-15 | Rating | 2137.56 | |
| Round | Color | Result | Opponent | |
| 2 | White | Win | Miyamoto Syunju | 2206.85 |
| 3 | White | Win | Kusajima Masato | 2247.00 |
| 4 | Black | Win | Miyamoto Syunju | 2206.85 |
| 5 | Black | Loss | Kusajima Masato | 2247.00 |
| Aomori Meijinsen Tournament | ||||
| Date | 2017-11-05 | Rating | 2145.51 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Tanno Yoshitaka | 2108.84 |
| 2 | Black | Win | Ooshina Seiichi | 1994.40 |
| 3 | White | Win | Koseki Kenshou | 1639.29 |
| 5 | White | Loss | Miyamoto Syunju | 2222.72 |
| 34 Aomori Championship | ||||
| Date | 2017-07-02 | Rating | 2157.31 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Yamamoto Harue | 1630.85 |
| 2 | Black | Win | Koseki Kenshou | 1646.12 |
| 3 | White | Win | Kusajima Masato | 2232.16 |
| 4 | White | Win | Tanno Yoshitaka | 2111.96 |
| 5 | White | Win | Miyamoto Syunju | 2214.93 |
| 55 Meijinsen Qualification Tohoku area 1st round | ||||
| Date | 2017-04-09 | Rating | 2154.46 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Miyamoto Syunju | 2202.41 |
| 3 | White | Loss | Kusajima Masato | 2235.79 |
| 4 | Black | Loss | Kusajima Masato | 2235.79 |
| 5 | White | Loss | Miyamoto Syunju | 2202.41 |
| 54 Meijinsen Qualification Tohoku area 1st round | ||||
| Date | 2016-04-10 | Rating | 2159.21 | |
| Round | Color | Result | Opponent | |
| 1 | White | Draw | Kusajima Masato | 2222.53 |
| 2 | White | Win | Miyamoto Syunju | 2125.81 |
| 3 | Black | Win | Miura Hitoshi | 1763.22 |
| 32nd Aomori Championship | ||||
| Date | 2015-07-05 | Rating | 2149.66 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Ooshina Seiichi | 2003.29 |
| 2 | Black | Loss | Tanno Yoshitaka | 2130.08 |
| 3 | White | Win | Yamamoto Harue | 1673.71 |
| 4 | Black | Loss | Kobayashi Koichi | 2243.96 |
| 5 | White | Win | Koseki Kenshou | 1669.66 |
| 7th Tohoku Championship | ||||
| Date | 2015-04-12 | Rating | 2149.76 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Okabe Hiroshi | 2687.68 |
| 2 | Black | Win | Miura Hitoshi | 1775.11 |
| 3 | Black | Loss | Ishitani Shin-ichi | 2378.13 |
| 4 | Black | Win | Miyamoto Syunju | 2048.66 |
| 5 | Black | Win | Kobayashi Koichi | 2249.25 |
| Sendai Memorial Cup | ||||
| Date | 2015-03-01 | Rating | 2147.17 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Miura Hitoshi | 1777.11 |
| 4 | White | Loss | Kobayashi Koichi | 2248.24 |
| 6 | Black | Win | Miyamoto Syunju | 2041.57 |
| 7 | White | Win | Hirono Masakazu | 1963.75 |
| 33th Aomori Meijinsen | ||||
| Date | 2014-11-09 | Rating | 2137.29 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Shimoda Hiroyasu | 1560.85 |
| 2 | White | Loss | Kobayashi Koichi | 2231.46 |
| 3 | White | Win | Yamamoto Harue | 1688.81 |
| 4 | Black | Win | Koseki Kenshou | 1679.27 |
| 5 | Black | Loss | Tanno Yoshitaka | 2131.07 |
| 6th Tohoku Championship | ||||
| Date | 2014-04-20 | Rating | 2129.99 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Kusajima Masato | 2202.48 |
| 2 | White | Win | Kobayashi Koichi | 2205.93 |
| 3 | White | Win | Hirono Masakazu | 1963.04 |
| 4 | Black | Loss | Okabe Hiroshi | 2706.59 |
| 5 | Black | Win | Sato Kiyotomi | 2427.66 |
| 7 | Black | Loss | Miura Hitoshi | 1786.60 |
| 32 Aomori Meijinsen | ||||
| Date | 2013-11-10 | Rating | 2119.17 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Yamamoto Harue | 1722.05 |
| 2 | Black | Win | Koseki Kenshou | 1675.76 |
| 3 | White | Win | Miura Hitoshi | 1783.83 |
| 4 | White | Win | Chiba Tomio | 1760.79 |
| 5 | Black | Win | Tanno Yoshitaka | 2123.76 |
| 5th Tohoku Championship | ||||
| Date | 2013-04-14 | Rating | 2106.45 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Okabe Hiroshi | 2693.50 |
| 2 | Black | Loss | Suzuki Rin | 2008.98 |
| 3 | White | Loss | Nakamura Shigeru | 2826.36 |
| 4 | Black | Win | Miura Hitoshi | 1811.75 |
| 5 | White | Loss | Kusajima Masato | 2187.07 |
| 31st Aomori Meijinsen | ||||
| Date | 2012-11-10 | Rating | 2107.62 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Yamamoto Harue | 1690.48 |
| 2 | Black | Win | Kudou Shin-ichi | 1871.34 |
| 3 | Black | Win | Asari Katsuki | 1706.18 |
| 4 | Black | Win | Miura Hitoshi | 1841.89 |
| 5 | Black | Win | Tanno Yoshitaka | 2119.48 |
| 30th Aomori Championship | ||||
| Date | 2012-07-01 | Rating | 2098.10 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Kudou Shin-ichi | 1875.26 |
| 2 | White | Win | Yamamoto Harue | 1680.97 |
| 3 | White | Draw | Kim Chang-Su | 2016.91 |
| 4 | Black | Win | Yokono Yoshiki | 1849.08 |
| 5 | White | Loss | Tanno Yoshitaka | 2117.86 |
| 4th Tohoku Championship | ||||
| Date | 2012-04-08 | Rating | 2098.87 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Kudomi Takahiro | 2386.29 |
| 2 | Black | Loss | Ozawa Tetsushi | 2035.49 |
| 3 | White | Win | Suzuki Junichiro | 1910.37 |
| 4 | Black | Win | Maruta Hiroki | 2061.95 |
| 5 | Black | Draw | Kobayashi Koichi | 2185.77 |
| 7th All Japan Championship | ||||
| Date | 2012-01-29 | Rating | 2099.13 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Ishitani Shin-ichi | 2349.05 |
| 2 | Black | Loss | Kamiya Shunsuke | 2428.06 |
| 3 | White | Win | Suzuki Rin | 1969.07 |
| 4 | Black | Loss | Kudomi Takahiro | 2384.79 |
| 5 | Black | Win | Fujikawa Masaki | 2045.37 |
| 6 | Black | Loss | Kon Akira | 1985.28 |
| 30th Aomori-Meijinsen touranament | ||||
| Date | 2011-11-13 | Rating | 2101.71 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Yamamoto Harue | 1658.49 |
| 2 | White | Win | Yamamoto Yuuichi | 1699.36 |
| 3 | Black | Win | Tsushima Norito | 1673.65 |
| 4 | Black | Win | Tanno Yoshitaka | 2100.81 |
| 5 | White | Win | Nara Tsurue | 1798.55 |
| 29th Aomori Championship | ||||
| Date | 2011-07-03 | Rating | 2097.39 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Yamamoto Harue | 1661.82 |
| 2 | Black | Win | Tanno Yoshitaka | 2091.41 |
| 3 | Black | Loss | Yokono Yoshiki | 1878.97 |
| 3rd Tohoku Championship | ||||
| Date | 2011-02-27 | Rating | 2095.29 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Yamamoto Harue | 1671.38 |
| 2 | Black | Win | Yokono Yoshiki | 1878.42 |
| 3 | Black | Loss | Miyagawa Sou | 2099.15 |
| 4 | Black | Loss | Fukui Nobuhiro | 2365.93 |
| 5 | Black | Win | Miura Hitoshi | 1900.39 |
| 14th Mikami Cup Tournament | ||||
| Date | 2011-01-30 | Rating | 2095.07 | |
| Round | Color | Result | Opponent | |
| S1 | Black | Loss | Mitsumori Masao | 2298.02 |
| S3 | White | Loss | Isobe Taizan | 2375.91 |
| S4 | Black | Loss | Ishitani Shin-ichi | 2360.52 |
| S5 | White | Loss | Ono Takayuki | 2362.89 |
| 29th Aomori-Meijinsen Tournament | ||||
| Date | 2010-11-14 | Rating | 2098.80 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Yokono Yoshiki | 1883.24 |
| 2 | Black | Win | Chiba Tomio | 1736.37 |
| 3 | Black | Win | Miura Hitoshi | 1907.52 |
| 4 | Black | Win | Yamamoto Harue | 1680.94 |
| 5 | Black | Loss | Tanno Yoshitaka | 2078.91 |
| 2nd Tohoku Championship | ||||
| Date | 2010-03-14 | Rating | 2108.15 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Hirono Masakazu | 1941.47 |
| 2 | Black | Loss | Ishitani Shin-ichi | 2363.79 |
| 3 | Black | Win | Miura Hitoshi | 1898.82 |
| 4 | White | Win | Kobayashi Koichi | 2110.94 |
| 5 | White | Win | Seiryu Masanori | 1970.19 |
| 28th Aomori-Meijinsen Tournament | ||||
| Date | 2009-11-01 | Rating | 2111.89 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Yamamoto Harue | 1687.89 |
| 2 | White | Loss | Tamada Yoichi | 2370.04 |
| 3 | White | Win | Chiba Tomio | 1736.87 |
| 4 | Black | Win | Yamamoto Yuuichi | 1696.25 |
| 5 | White | Loss | Miyagawa Sou | 2109.90 |
| 8th Middle-dan Players Tournament | ||||
| Date | 2009-08-30 | Rating | 2115.62 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Kobayashi Koichi | 2108.47 |
| 2 | Black | Loss | Koyama Jun | 2411.39 |
| 3 | Black | Loss | Maruyama Yasushi | 2226.54 |
| 4 | Black | Loss | Yamamoto Yasuhiro | 2116.51 |
| 5 | White | Loss | Kubo Izumi | 2088.11 |
| 6 | Black | Win | Kato Yasuhiro | 2026.12 |
| 1st Tohoku Championship | ||||
| Date | 2009-02-22 | Rating | 2136.30 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Miura Hitoshi | 1908.75 |
| 2 | Black | Win | Sato Ryota | 1498.41 |
| 3 | Black | Loss | Ishitani Shin-ichi | 2362.26 |
| 4 | Black | Loss | Sato Kiyotomi | 2416.82 |
| 5 | Black | Loss | Tanno Yoshitaka | 2094.40 |
| 12th Mikami Cup Tournament | ||||
| Date | 2009-01-18 | Rating | 2141.95 | |
| Round | Color | Result | Opponent | |
| A1 | Black | Win | Tamada Yoichi | 2263.00 |
| A2 | White | Win | Tomobe Katsuhiro | 2093.18 |
| A3 | Black | Win | Kobayashi Koichi | 2095.63 |
| A4 | White | Win | Tanizaki Ryusuke | 2107.46 |
| A5 | Black | Loss | Ono Takayuki | 2377.57 |
| 7th 6-7 dan Tournament | ||||
| Date | 2008-09-28 | Rating | 2145.26 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Kubo Izumi | 2085.84 |
| 2 | Black | Loss | Ono Takayuki | 2376.43 |
| 3 | Black | Loss | Kobayashi Koichi | 2090.52 |
| 4 | White | Win | Kato Yasuhiro | 1983.19 |
| 5 | White | Win | Tamura Kazumasa | 2440.36 |
| 6 | Black | Loss | Maruyama Yasushi | 2202.78 |
| 6dan 7dan Tournament | ||||
| Date | 2007-10-08 | Rating | 2146.87 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Nagao Noriaki | 2230.97 |
| 2 | White | Win | Yamamoto Yasuhiro | 2071.00 |
| 3 | Black | Win | Kato Yasuhiro | 1962.75 |
| 4 | Black | Win | Ono Takayuki | 2348.47 |
| 5 | White | Loss | Sato Kiyotomi | 2380.80 |
| 6 | Black | Loss | Tamura Kazumasa | 2386.88 |
| 5th 6-7 dan Tournament | ||||
| Date | 2004-12-05 | Rating | 2065.08 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Sato Kiyotomi | 2350.05 |
| 2 | Black | Win | Yamamoto Yasuhiro | 2034.12 |
| 3 | Black | Loss | Arita Nobuyoshi | 2266.35 |
| 4 | Black | Win | Tadokoro Hosai | 1919.47 |
| 5 | Black | Loss | Hiwatashi Kikuma | 1915.81 |
| 6 | White | Loss | Miyagawa Junzo | 2234.88 |