[Event "Wch U16"]
[Site "Montesilvano"]
[Date "2023.11.22"]
[Round "9"]
[White "Skreko, Igor1"]
[Black "Okabe, Yuma"]
[Result "1-0"]
[ECO "E71"]
[WhiteElo "2187"]
[BlackElo "1862"]
[PlyCount "91"]
[EventDate "2023.11.13"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ITA"]
[SourceTitle "CB48_2023"]
[SourceDate "2023.11.29"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 0-0 6. Be3 e5 7. d5 Na6 8. g4 c6 9. Nge2 h5 10. g5 Nh7 11. Qd2 cxd5 12. cxd5 Bd7 13. Nc1 Nc5 14. Nd3 Qa5 15. Nxc5 dxc5 16. Nb5 Qxd2+ 17. Kxd2 Bxb5 18. Bxb5 a6 19. Be2 f5 20. f3 Rfc8 21. h4 b5 22. Rhc1 Bf8 23. b3 Be7 24. a4 b4 25. Rc2 Nf8 26. Rac1 Nd7 27. Bf1 Rc7 28. Bh3 Rf8 29. Bf1 Ra8 30. Bd3 Bf8 31. exf5 Nb6 32. Bxc5 Nxd5 33. Bxf8 Rxc2+ 34. Rxc2 Kxf8 35. fxg6 Rd8 36. Be4 Nc3+ 37. Ke3 Rd4 38. Rd2 Nd1+ 39. Ke2 Nc3+ 40. Ke1 Rxd2 41. Kxd2 Kg7 42. Kd3 a5 43. Kc4 Kf8 44. Kc5 Ke7 45. Kb6 Ne2 46. Kxa5 1-0

[Event "Wch U16"]
[Site "Montesilvano"]
[Date "2023.11.13"]
[Round "1"]
[White "Smeets, Kobe"]
[Black "Okabe, Yuma"]
[Result "1-0"]
[ECO "C70"]
[WhiteElo "2266"]
[BlackElo "1862"]
[PlyCount "79"]
[EventDate "2023.11.13"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ITA"]
[SourceTitle "CB48_2023"]
[SourceDate "2023.11.29"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.29"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 g6 5. 0-0 b5 6. Bb3 Bg7 7. c3 Nge7 8. Re1 0-0 9. d4 exd4 10. cxd4 d6 11. h3 Na5 12. Bc2 c5 13. Nc3 Bb7 14. Bg5 h6 15. Bh4 Qc7 16. d5 Nc4 17. Qc1 g5 18. Bg3 f5 19. exf5 Nxf5 20. Bh2 b4 21. Na4 Bxd5 22. Bb3 Qf7 23. Qd1 Nd4 24. Bxc4 Bxc4 25. Bxd6 Rfd8 26. Nxd4 Rxd6 27. Qf3 Bxd4 28. Qxa8+ Kg7 29. Qb8 Rf6 30. Nb6 Rxf2 31. Nxc4 Rf1+ 32. Kh2 Rf2 33. Ne3 g4 34. Nxg4 Rxg2+ 35. Kxg2 Qd5+ 36. Kg3 h5 37. Re7+ Kg6 38. Qe8+ Kg5 39. h4+ Kf5 40. Qxh5# 1-0

[Event "Eastern Asia-ch U16 7th"]
[Site "Hainan"]
[Date "2023.08.09"]
[Round "7"]
[White "Chen, Zhi"]
[Black "Okabe, Yuma"]
[Result "1-0"]
[ECO "C44"]
[WhiteElo "1989"]
[BlackElo "1898"]
[PlyCount "51"]
[EventDate "2023.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHN"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d4 Nxe4 5. d5 Bc5 6. dxc6 Bxf2+ 7. Ke2 Bb6 8. Qd5 Nf2 9. Rg1 0-0 10. cxb7 Bxb7 11. Qxb7 Qf6 12. Na3 Ng4 13. Qe4 h5 14. Bg5 Qe6 15. h3 d5 16. Qc2 Nf2 17. Be3 Bxe3 18. Kxe3 Qb6+ 19. Ke2 e4 20. Nd4 c5 21. Qb3 Qf6 22. Qxd5 cxd4 23. Qxd4 Nxh3 24. gxh3 Qf3+ 25. Ke1 g6 26. Qf2 1-0

[Event "Eastern Asia-ch U16 7th"]
[Site "Hainan"]
[Date "2023.08.05"]
[Round "2"]
[White "Okabe, Yuma"]
[Black "Chen, Yuan1111"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "1898"]
[BlackElo "2166"]
[PlyCount "113"]
[EventDate "2023.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHN"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 a6 4. Nf3 b5 5. g3 Bb7 6. d3 b4 7. Nb1 g6 8. Bg2 Bg7 9. Nbd2 Nc6 10. 0-0 e6 11. f5 Nd4 12. Nxd4 Bxd4+ 13. Kh1 exf5 14. Nf3 Bg7 15. exf5 Ne7 16. Nh4 Bxg2+ 17. Kxg2 Nxf5 18. Nxf5 gxf5 19. Rxf5 Qd7 20. Qg4 0-0-0 21. Qf3 Rhf8 22. Qa8+ Kc7 23. Qa7+ Kc8 24. Qa8+ Kc7 25. Qa7+ Kc8 26. Qxa6+ Qb7+ 27. Qxb7+ Kxb7 28. Bg5 Rde8 29. Bf6 Bxf6 30. Rxf6 Re2+ 31. Rf2 Rfe8 32. a4 b3 33. cxb3 Ka6 34. Rc1 R8e3 35. Rc3 f5 36. Rc4 Rxf2+ 37. Kxf2 Rxd3 38. b4 cxb4 39. Rxb4 Rd2+ 40. Ke3 Rxh2 41. b3 Rb2 42. Rb5 Rb1 43. Kd4 Rf1 44. Rd5 Rd1+ 45. Kc4 Rxd5 46. Kxd5 h5 47. Kxd6 f4 48. gxf4 h4 49. f5 h3 50. f6 h2 51. f7 h1Q 52. f8Q Qd1+ 53. Kc6 Qh1+ 54. Kc7 Qb7+ 55. Kd8 Qxb3 56. Qd6+ Qb6+ 57. Qxb6+ 1/2-1/2

[Event "Eastern Asia-ch U16 7th"]
[Site "Hainan"]
[Date "2023.08.05"]
[Round "3"]
[White "Ulziikhishig, Khishigbat"]
[Black "Okabe, Yuma"]
[Result "1-0"]
[ECO "E77"]
[WhiteElo "1908"]
[BlackElo "1898"]
[PlyCount "59"]
[EventDate "2023.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHN"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 0-0 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Re8 10. 0-0 Bf5 11. Bd3 Ne4 12. Nxe4 Bxe4 13. Bxe4 Rxe4 14. Qd3 Qe7 15. Rb1 Nd7 16. Bd2 h6 17. f5 g5 18. Rfe1 Re8 19. h3 Nf6 20. Bc3 Nh5 21. Bxg7 Kxg7 22. Rxe4 Qxe4 23. Qc3+ Re5 24. Re1 Qf4 25. Nxe5 dxe5 26. Qxe5+ Qxe5 27. Re2 Qe4 28. Rxe4 Kf6 29. Re5 Kxe5 30. d6 1-0

[Event "Kobe op"]
[Site "Kobe"]
[Date "2023.07.15"]
[Round "2"]
[White "Tran, Thanh Tu"]
[Black "Okabe, Yuma"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "2420"]
[BlackElo "1880"]
[PlyCount "69"]
[EventDate "2023.07.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "JPN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. b3 c5 2. Bb2 Nc6 3. c4 e5 4. e3 d6 5. g3 g6 6. Bg2 Nge7 7. Ne2 Bg7 8. 0-0 0-0 9. Nbc3 Bg4 10. f3 Be6 11. f4 Qd7 12. Ne4 h6 13. fxe5 Nxe5 14. Qc2 f5 15. Nf2 g5 16. Rad1 Rac8 17. d4 cxd4 18. exd4 N5g6 19. d5 Bf7 20. Bxg7 Kxg7 21. Qb2+ Ne5 22. Nd3 N7g6 23. Nd4 Bg8 24. c5 Rf6 25. Nxe5 dxe5 26. c6 bxc6 27. dxc6 Qf7 28. Nb5 Rcxc6 29. Bxc6 Rxc6 30. Nd6 Qf8 31. Nxf5+ Kh8 32. Ne3 Qc5 33. Qf2 Nf4 34. gxf4 gxf4 35. Ng2 1-0

[Event "JPN-ch"]
[Site "Tokyo"]
[Date "2023.05.05"]
[Round "6"]
[White "Averbukh, Alex"]
[Black "Okabe, Yuma"]
[Result "1-0"]
[ECO "C68"]
[WhiteElo "2153"]
[BlackElo "1900"]
[PlyCount "167"]
[EventDate "2023.05.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "JPN"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Bg4 6. h3 h5 7. d3 Qf6 8. Nbd2 g5 9. Nc4 Bxf3 10. Qxf3 Qxf3 11. gxf3 f6 12. Be3 0-0-0 13. Rfd1 c5 14. a4 Bd6 15. a5 Ne7 16. Nd2 Ng6 17. Kf1 Kd7 18. Nb3 Ra8 19. Bxc5 Nf4 20. d4 Nxh3 21. dxe5 fxe5 22. Be3 Raf8 23. Kg2 Nf4+ 24. Bxf4 Rxf4 25. Rd3 Ke6 26. Nd2 Rg8 27. Rh1 h4 28. Kf1 Bb4 29. Nc4 Be7 30. Rb3 g4 31. Rg1 h3 32. fxg4 Bc5 33. f3 Bxg1 34. Kxg1 Rf7 35. Kh2 Rh8 36. Rd3 Rhf8 37. Nd2 Rh8 38. Nc4 Rhf8 39. Nd2 Rh8 40. Nb3 b6 41. Nd2 Rff8 42. Nf1 b5 43. b4 Rf7 44. Nd2 Rd7 45. Nb3 Rxd3 46. cxd3 Rf8 47. Kxh3 Rxf3+ 48. Kg2 Re3 49. Kf2 Rh3 50. Nc5+ Kd6 51. g5 Rh5 52. g6 Rg5 53. Nxa6 Rxg6 54. Nc5 Rf6+ 55. Ke2 Rh6 56. Kd2 Rh1 57. Kc2 Rh8 58. Kc3 Rh1 59. d4 Rh3+ 60. Nd3 exd4+ 61. Kxd4 Rh4 62. Nc5 Rh1 63. Nb7+ Kc6 64. Nd8+ Kd7 65. Nf7 Ke6 66. Ne5 Rb1 67. Nd3 Rd1 68. Ke3 Kd6 69. Ke2 Rb1 70. Kd2 Rb3 71. e5+ Kd5 72. e6 Kd4 73. Nc5 Rxb4 74. e7 Rb2+ 75. Kd1 Rb1+ 76. Ke2 Rb2+ 77. Kf3 Kxc5 78. e8Q Rb3+ 79. Ke2 Rb2+ 80. Kd3 Ra2 81. Qe5+ Kb4 82. Qd4+ Kb3 83. Qd5+ Kb2 84. Qxb5+ 1-0

[Event "Asia-ch U20"]
[Site "Tagaytay City"]
[Date "2022.11.25"]
[Round "9"]
[White "Okabe, Yuma"]
[Black "Sarmiento, Cyle"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1769"]
[BlackElo "1258"]
[PlyCount "49"]
[EventDate "2022.11.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PHI"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 Nc6 4. Nf3 Bg4 5. Bb5 a6 6. Bxc6+ bxc6 7. 0-0 e5 8. h3 Bxf3 9. Qxf3 exf4 10. e5 Qd7 11. Qxf4 dxe5 12. Qxe5+ Ne7 13. Ne4 Qd4+ 14. Qxd4 cxd4 15. Nd6+ Kd7 16. Nxf7 Rg8 17. d3 h6 18. Ne5+ Ke6 19. Bf4 g5 20. Bh2 Bg7 21. Rae1 Kd5 22. Nd7 Nc8 23. Rf5+ Be5 24. Rfxe5+ Kd6 25. Re7+ 1-0

[Event "Asia-ch U20"]
[Site "Tagaytay City"]
[Date "2022.11.24"]
[Round "8"]
[White "Orozbaev, Eldiar"]
[Black "Okabe, Yuma"]
[Result "1-0"]
[ECO "C26"]
[WhiteElo "2324"]
[BlackElo "1769"]
[PlyCount "95"]
[EventDate "2022.11.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PHI"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 Bc5 5. d3 0-0 6. Be3 Nd4 7. Nf3 Re8 8. Qd2 c6 9. 0-0 d5 10. exd5 Nxd5 11. Nxd5 cxd5 12. Bxd4 exd4 13. b4 Bb6 14. Rfe1 Be6 15. Re2 Qd6 16. Rae1 Bd7 17. Ne5 Ba4 18. Qf4 Re7 19. Qf3 Rd8 20. Kf1 Rc7 21. Ng4 Qxb4 22. Re5 Ba5 23. Nf6+ Kh8 24. Qf5 g6 25. Qh3 Kg7 26. Qxh7+ Kxf6 27. Bh3 Bd7 28. g4 Qxe1+ 29. Rxe1 Bxe1 30. Qh4+ g5 31. Qh6+ Ke7 32. Qxg5+ f6 33. Qg7+ Ke8 34. Kxe1 Rc6 35. Bg2 Re6+ 36. Kf1 Bc6 37. Bf3 Rdd6 38. h4 Re7 39. Qg6+ Kf8 40. h5 Rg7 41. Qf5 Rg5 42. Qc8+ Kf7 43. h6 Rg8 44. Qf5 Rh8 45. g5 Ke7 46. gxf6+ Rxf6 47. Qe5+ Kf7 48. Bh5+ 1-0

[Event "Asia-ch U20"]
[Site "Tagaytay City"]
[Date "2022.11.23"]
[Round "7"]
[White "Okabe, Yuma"]
[Black "Tobing, Daniel Hermawan Lum"]
[Result "0-1"]
[ECO "B04"]
[WhiteElo "1769"]
[BlackElo "2162"]
[PlyCount "80"]
[EventDate "2022.11.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PHI"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. a4 a5 8. exd6 cxd6 9. 0-0 0-0 10. Re1 N8d7 11. Na3 Nf6 12. h3 Bd7 13. c3 Re8 14. Bf4 Bc6 15. Qe2 Nfd5 16. Bd2 Qd7 17. Nb5 e6 18. c4 Nc7 19. Bc3 Nc8 20. Nd2 Ne7 21. Ne4 Nf5 22. Qd2 Bxe4 23. Rxe4 Nxb5 24. axb5 d5 25. cxd5 Qxb5 26. Qd1 a4 27. Bxa4 Qxd5 28. Bxe8 Rxa1 29. Qxa1 Qxe4 30. Qa8 Bf8 31. Qd8 Nh4 32. f3 Qe3+ 33. Kf1 Nf5 34. Be1 Nxd4 35. Bc3 Nf5 36. Qc7 Qd3+ 37. Kf2 Be7 38. g3 Qe3+ 39. Kg2 Qe2+ 40. Kg1 Ne3 0-1

[Event "Asia-ch U20"]
[Site "Tagaytay City"]
[Date "2022.11.22"]
[Round "6"]
[White "Co, Ronell Jose"]
[Black "Okabe, Yuma"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1072"]
[BlackElo "1769"]
[PlyCount "88"]
[EventDate "2022.11.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PHI"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. 0-0 Bxc3 9. d5 Bf6 10. dxc6 bxc6 11. Re1 0-0 12. Rxe4 d5 13. Re1 dxc4 14. Qc2 Qd3 15. Qxd3 cxd3 16. Rd1 Bf5 17. h3 Rab8 18. g4 Bg6 19. Rd2 h6 20. a4 Rfd8 21. Ne1 Bg5 22. Rd1 d2 23. Bxd2 Bxd2 24. Nf3 Rxb2 25. Nxd2 Rdxd2 26. Rxd2 Rxd2 27. Kg2 c5 28. Rc1 Rd5 29. Kg3 Bd3 30. Kf4 c4 31. Ke3 g5 32. f4 Kg7 33. f5 c5 34. Rc3 Re5+ 35. Kd2 Re2+ 36. Kd1 Rh2 37. Ke1 Kf6 38. Rc1 Ke5 39. Rd1 Ke4 40. Rd2 Rxh3 41. Rg2 c3 42. Rg1 Ke3 43. Kd1 c2+ 44. Kc1 Kf2 0-1

[Event "Asia-ch U20"]
[Site "Tagaytay City"]
[Date "2022.11.22"]
[Round "5"]
[White "Okabe, Yuma"]
[Black "Toledo, Andrew James"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1769"]
[PlyCount "63"]
[EventDate "2022.11.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PHI"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. c3 d6 6. cxd4 Nf6 7. Bd3 Bg4 8. Be3 0-0 9. Nbd2 Nb4 10. Bb1 Re8 11. 0-0 d5 12. e5 Nd7 13. h3 Bh5 14. a3 Na6 15. Bxh7+ Kxh7 16. Ng5+ Bxg5 17. Qxh5+ Bh6 18. g4 Nf6 19. exf6 Qxf6 20. g5 Qf5 21. Qf3 Qg6 22. h4 Rg8 23. h5 Qd6 24. Rfe1 c6 25. Bf4 Qd7 26. gxh6 gxh6+ 27. Bg3 Nc7 28. Qf6 Qh3 29. Nf1 Rg7 30. Re7 Ne6 31. Rxf7 Rag8 32. Qg6+ 1-0

[Event "Asia-ch U20"]
[Site "Tagaytay City"]
[Date "2022.11.21"]
[Round "4"]
[White "Toledo, Aron Joshua"]
[Black "Okabe, Yuma"]
[Result "0-1"]
[ECO "A37"]
[BlackElo "1769"]
[PlyCount "50"]
[EventDate "2022.11.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PHI"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 g6 3. Bg2 Bg7 4. 0-0 Nc6 5. c4 d6 6. Nc3 e5 7. d3 Nge7 8. Bd2 0-0 9. Qc1 Rb8 10. Bh6 a6 11. Bxg7 Kxg7 12. a4 h6 13. e4 Bg4 14. Qe3 Nd4 15. Ne1 Nec6 16. h3 Be6 17. Rb1 b5 18. axb5 axb5 19. b3 Na5 20. f4 b4 21. Nd5 Bxd5 22. exd5 exf4 23. gxf4 Re8 24. Qf2 Re2 25. Qg3 Naxb3 0-1

[Event "Tokyo Japan op"]
[Site "Tokyo"]
[Date "2021.11.22"]
[Round "6"]
[White "Okabe, Yuma"]
[Black "Shinoda, Taro"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1454"]
[BlackElo "2002"]
[PlyCount "128"]
[EventDate "2021.11.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "JPN"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 g6 4. Nf3 Bg7 5. Bc4 Nc6 6. 0-0 e6 7. d4 Nxd4 8. Be3 Nf6 9. Bxd4 cxd4 10. Nxd4 0-0 11. Bb3 a6 12. a4 e5 13. Nde2 Ng4 14. Nd5 Be6 15. Nec3 exf4 16. Qf3 Bd4+ 17. Kh1 Nxh2 18. Qxf4 Be5 19. Nf6+ Kg7 20. Qh4 h5 21. Rf4 Ng4 22. Bxe6 Bxf4 23. Bxg4 Qxf6 24. Qxf6+ Kxf6 25. Bh3 Be5 26. Nd5+ Kg7 27. Rb1 b5 28. a5 Ra7 29. Kg1 Rb8 30. Nb4 Rba8 31. c3 Rc7 32. Rd1 Rc4 33. g4 hxg4 34. Bxg4 Ra7 35. Bf3 g5 36. Kg2 g4 37. Bxg4 Rxe4 38. Bf3 Rh4 39. Nd3 Ra4 40. Nb4 Rd7 41. Bc6 Rc7 42. Bd5 Rxa5 43. Bb3 f5 44. Nd5 Rb7 45. Nb4 Rc7 46. Nd5 Rc4 47. Bxc4 bxc4 48. Ne3 Ra2 49. Nxf5+ Kf6 50. Nxd6 Rxb2+ 51. Kf3 Bxc3 52. Ne4+ Ke5 53. Nxc3 Rb3 54. Ra1 Kd4 55. Rxa6 Kxc3 56. Ke2 Kc2 57. Ra2+ Rb2 58. Ra3 c3 59. Ke3 Rb8 60. Kd4 Rd8+ 61. Kc4 Rc8+ 62. Kb4 Kd2 63. Ra2+ c2 64. Kb3 Kd1 0-1

[Event "Tokyo Japan op"]
[Site "Tokyo"]
[Date "2021.11.21"]
[Round "3"]
[White "Katsuta, Yuki"]
[Black "Okabe, Yuma"]
[Result "0-1"]
[ECO "E94"]
[WhiteElo "1897"]
[BlackElo "1454"]
[PlyCount "52"]
[EventDate "2021.11.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "JPN"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. Be2 Na6 7. 0-0 e5 8. Be3 Ng4 9. Bg5 Qe8 10. h3 h6 11. Bc1 Nf6 12. dxe5 dxe5 13. Be3 Qe7 14. Nd5 Qd8 15. Nxf6+ Qxf6 16. c5 Nb4 17. Qb3 Nc6 18. Rfd1 Rb8 19. Rac1 Be6 20. Qa4 Rfd8 21. a3 a6 22. b4 Nd4 23. Bxd4 exd4 24. e5 Qf4 25. b5 axb5 26. Bxb5 Bxh3 0-1

[Event "Tokyo Japan op"]
[Site "Tokyo"]
[Date "2021.11.21"]
[Round "4"]
[White "Okabe, Yuma"]
[Black "Otawa, Yuto"]
[Result "0-1"]
[ECO "C56"]
[WhiteElo "1454"]
[BlackElo "2128"]
[PlyCount "82"]
[EventDate "2021.11.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "JPN"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. e5 d5 6. Bb5 Ne4 7. Nxd4 Bd7 8. Bxc6 bxc6 9. 0-0 Bc5 10. Be3 Bb6 11. f3 Ng5 12. f4 Ne4 13. Nc3 Nxc3 14. bxc3 0-0 15. Qd2 c5 16. Nb3 c4 17. Nd4 Qe7 18. a4 Rfd8 19. Nb5 Bf5 20. Bxb6 axb6 21. Nd4 Bd7 22. Rae1 c5 23. Nf3 Rxa4 24. Qxd5 Bf5 25. Qc6 Ra2 26. Qxb6 Rxc2 27. Rd1 Bd3 28. Qa5 Rc8 29. Rf2 Rxf2 30. Kxf2 h6 31. g3 Qb7 32. Rd2 Qc6 33. Qa7 Ra8 34. Qe7 Ra1 35. Ne1 Rxe1 36. Kxe1 Qh1+ 37. Kf2 Qxh2+ 38. Kf3 Qxd2 39. Kg4 Qd1+ 40. Kh4 Bf5 41. Qd8+ Qxd8+ 0-1

