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Games played by Koyama Kuya
Total: 157; won: 77; winning percentage: 49.0%
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2023-07-31] 62nd Japanese Judan, preliminary
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| Yao Zhiteng 6p | Koyama Kuya 5p | W+0.5 |  |
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| [2023-06-22] 62nd Japanese Judan, preliminary A
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| Koyama Kuya 5p | Kono Rin 9p | B+R | |
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| [2023-04-20] 48th Japanese Kisei, preliminary
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| O Rissei 9p | Koyama Kuya 5p | W+R | |
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| [2023-03-27] 48th Japanese Shinjin O, round 2
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| Koyama Kuya 5p | Otake Yu 7p | W+R | |
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| [2023-03-09] 71st Japanese Oza, last preliminary
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| Koike Yoshihiro 7p | Koyama Kuya 5p | B+0.5 | |
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| [2023-02-20] 48th Japanese Shinjin O, round 1
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| Tsuji Shigehito 4p | Koyama Kuya 5p | W+R | |
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| [2022-12-15] 71st Japanese Oza, preliminary A
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| Yamashita Keigo 9p | Koyama Kuya 5p | W+7.5 | |
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| [2022-11-27] 17th Hiroshima Aluminum Cup, semi-final
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| Koyama Kuya 5p | Ueno Asami 4p | W+0.5 | |
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| [2022-11-26] 17th Hiroshima Aluminum Cup, round 2
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| Koyama Kuya 5p | Fujisawa Rina 5p | B+R | |
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| [2022-11-26] 17th Hiroshima Aluminum Cup, round 1
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| Koyama Kuya 5p | Wu Baiyi 5p | B+3.5 | |
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| [2022-11-15] 32nd Japanese Ryusei, group D
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| Koyama Kuya 5p | Ueno Asami 4p | W+R | |
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| [2022-08-08] 17th Hiroshima Aluminum Cup, preliminary
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| Koyama Kuya 5p | Yokotsuka Riki 7p | B+R | |
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| [2022-07-28] 61st Japanese Judan, last preliminary
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| Anzai Nobuaki 7p | Koyama Kuya 5p | B+0.5 | |
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| [2022-07-04] 48th Japanese Meijin, preliminary B
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| Nakamura Sumire 2p | Koyama Kuya 5p | W+8.5 | |
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| [2022-01-27] 47th Japanese Shinjin O, round 1
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| Koyama Kuya 5p | Aoki Hirotaka 2p | W+3.5 | |
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| [2021-12-25] 1st Japanese Teikei Cup Shunei Tournament, league A
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| Koyama Kuya 5p | Imabun Taro 2p | W+R | |
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| [2021-12-24] 1st Japanese Teikei Cup Shunei Tournament, league A
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| Abe Yoshiki 3p | Koyama Kuya 5p | W+R | |
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| [2021-12-22] 1st Japanese Teikei Cup Shunei Tournament, league A
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| Ichiriki Ryo 9p | Koyama Kuya 5p | B+R | |
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| [2021-12-21] 1st Japanese Teikei Cup Shunei Tournament, league A
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| Koyama Kuya 5p | Ueno Asami 4p | B+0.5 | |
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| [2021-12-20] 1st Japanese Teikei Cup Shunei Tournament, league A
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| Koyama Kuya 5p | Shibano Toramaru 9p | B+R | |
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| [2021-11-18] 47th Japanese Gosei, preliminary A
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| Koyama Kuya 5p | Hsu Chiayuan 9p | W+1.5 | |
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| [2021-11-01] 61st Japanese Judan, preliminary B
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| Koyama Kuya 5p | Cho Chikun 9p | B+R | |
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| [2021-09-06] 31st Japanese Ryusei, group C
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| Koyama Kuya 4p | Oomote Takuto 3p | W+4.5 | |
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| [2021-08-26] 77th Japanese Honinbo, last preliminary
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| Koyama Kuya 4p | Sada Atsushi 7p | W+2.5 | |
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| [2021-08-05] 47th Japanese Meijin, preliminary
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| Yoda Norimoto 9p | Koyama Kuya 4p | B+R | |
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| [2021-07-29] 77th Japanese Honinbo, preliminary
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| Koyama Kuya 4p | Hikosaka Naoto 9p | B+2.5 | |
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| [2021-07-22] 46th Japanese Shinjin O, semi-final
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| Koyama Kuya 4p | Sotoyanagi Sebun 3p | W+0.5 | |
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| [2021-06-21] 69th Japanese Oza, round 1
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| Cho U 9p | Koyama Kuya 4p | B+2.5 | |
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| [2021-05-13] 46th Japanese Shinjin O, round 3
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| Fujisawa Rina 5p | Koyama Kuya 4p | W+R | |
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| [2021-04-23] 28th Japanese Agon Cup, preliminary
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| Hsu Chiayuan 8p | Koyama Kuya 4p | B+R | |
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