The Japan Chess Championship 2023 will take place from 3-7 May 2023 in Tokyo, Japan. The time control is 90 minutes for the whole game with a 30-second increment from move one. It is 9-round Swiss system tournament with participation of Tu Tran Thanh, Mirai Aoshima, Ryosuke Nanjo, Shinya Kojima, Kohei Yamada, Atsuhiko Kobayashi, Alex Averbukh, Tomohiko Matsuo, Shou Otsuka, etc.
More : All-Russian chess competition among men’s teams “Major League” / The XXX Russian Chess Championship among men’s teams “Premier League” / The XXIV Russian Chess Championship among women’s teams / The 4th Stepan Avagyan Memorial
Full list of players :
| Number | Name | Country Name | EloI | EloN | |
| 1 | CM | Tran Thanh Tu | JPN | 2412 | 2568 |
| 2 | FM | Aoshima Mirai | JPN | 2343 | 2457 |
| 3 | IM | Nanjo Ryosuke | JPN | 2338 | 2462 |
| 4 | IM | Kojima Shinya | JPN | 2334 | 2486 |
| 5 | FM | Yamada Kohei | JPN | 2207 | 2319 |
| 6 | CM | Kobayashi Atsuhiko | JPN | 2160 | 2330 |
| 7 | CM | Averbukh Alex | JPN | 2153 | 2309 |
| 8 | CM | Matsuo Tomohiko | JPN | 2139 | 2203 |
| 9 | Otsuka Shou | JPN | 2137 | 2058 | |
| 10 | Raabe Peter | GER | 2106 | 2046 | |
| 11 | CM | Nakahara Kan | JPN | 2095 | 2172 |
| 12 | Higashino Tetsuo | JPN | 2082 | 2163 | |
| 13 | Nakamura Naohiro | JPN | 2081 | 2156 | |
| 14 | Fujii Chiaki | JPN | 2009 | 2021 | |
| 15 | Noguchi Koji | JPN | 1990 | 2118 | |
| 16 | Shinoda Taro | JPN | 1990 | 1950 | |
| 17 | Gishi Takeshi | JPN | 1980 | 1978 | |
| 18 | AIM | Higashishiba Teruomi | JPN | 1972 | 2049 |
| 19 | Nagataki Kota | JPN | 1965 | 2004 | |
| 20 | Tamura Hikaru | JPN | 1936 | 1844 | |
| 21 | Ogawa Tomie | JPN | 1922 | 2070 | |
| 22 | Wakamori Tsuyoshi | JPN | 1913 | 1861 | |
| 23 | Okabe Yuma | JPN | 1900 | 1862 | |
| 24 | Furuya Masahiro | JPN | 1882 | 1955 | |
| 25 | Uetani Toshiaki | JPN | 1877 | 1801 | |
| 26 | Kitagami Show | JPN | 1868 | 1961 | |
| 27 | Jones Tibor | SCO | 1865 | 1893 | |
| 28 | Takahashi Hideaki | JPN | 1864 | 1923 | |
| 29 | Sugimoto Koichi | JPN | 1863 | 1964 | |
| 30 | Maeshima Hiroaki | JPN | 1860 | 1835 | |
| 31 | Sakai Enju | JPN | 1847 | 1823 | |
| 32 | Maeda Shuntaro | JPN | 1844 | 1740 | |
| 33 | Nishino Tatsuya | JPN | 1828 | 1749 | |
| 34 | Kimura Ryota | JPN | 1814 | 1707 | |
| 35 | Saito Hiromasa | JPN | 1810 | 1745 | |
| 36 | Kinoshita Akira | USA | 1798 | 1801 | |
| 37 | Karmalkar Deeptesh | IND | 1794 | 1848 | |
| 38 | Kanda Daigo | JPN | 1791 | 1722 | |
| 39 | Hashimoto Shunji | JPN | 1783 | 1665 | |
| 40 | WCM | Sakai Azumi | JPN | 1761 | 1795 |
| 41 | Bhatia Praveen | JPN | 1745 | 1417 | |
| 42 | Kuroda Yunosuke | JPN | 1735 | 1766 | |
| 43 | Robertson Phil | JPN | 1727 | 1697 | |
| 44 | Aoki Yasuhiro | JPN | 1713 | 1601 | |
| 45 | Kato Ami | JPN | 1707 | 1605 | |
| 46 | Nagai Toshiyuki | JPN | 1675 | 1644 | |
| 47 | Tomii Yoshikatsu | JPN | 1674 | 1824 | |
| 48 | Kawamura Takuto | JPN | 1671 | 1589 | |
| 49 | Takayasu Melody | JPN | 1666 | 1761 | |
| 50 | Tochikubo Jin | JPN | 1609 | 1444 | |
| 51 | Kobayashi Hidehiko | JPN | 1563 | 1482 | |
| 52 | Yokota Yoshiaki | JPN | 1548 | 1514 | |
| 53 | Mitsuyama Rikka | JPN | 1299 | 1370 | |
| 54 | Ide Daisuke | JPN | 0 | 1730 | |
| 55 | Nakamura Tomoki | JPN | 0 | 1708 | |
| 56 | Cabrol Puig Eduard | ESP | 0 | 1606 | |
| 57 | Yonemitsu Kohei | JPN | 0 | 1597 | |
| 58 | Mieno Yuki | JPN | 0 | 1549 | |
| 59 | Yamamoto Soichiro | JPN | 0 | 1493 | |
| 60 | Shioya Ryoma | JPN | 0 | 1453 | |
| 61 | Sawaguchi Akinobu | JPN | 0 | 1422 | |
| 62 | Nakamura Mitsuru | JPN | 0 | 1418 | |
| 63 | Ono Tadashi | JPN | 0 | 1384 | |
| 64 | Okutomo Hisashi | JPN | 0 | 1373 | |
| 65 | Mochizuki Masatoshi | JPN | 0 | 1280 | |
| 66 | Takase Hayato | JPN | 0 | 1253 | |
| 67 | Matsumoto Shinji | JPN | 0 | 1165 | |
