[Event "Tokyo City-ch"]
[Site "Tokyo"]
[Date "2019.03.24"]
[Round "4"]
[White "Koshiba, Leo"]
[Black "Furuya, Masahiro"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "1810"]
[BlackElo "2168"]
[PlyCount "93"]
[EventDate "2019.03.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. e5 Nc6 4. c3 d6 5. exd6 Bxd6 6. d4 Bd7 7. Be2 Nge7 8. 0-0 0-0 9. Nbd2 cxd4 10. cxd4 Nd5 11. Nc4 Bf4 12. Ne3 Nce7 13. g3 Nxe3 14. Bxe3 Bxe3 15. fxe3 Ng6 16. Rc1 Bc6 17. Rc5 Rc8 18. Qc2 Qd7 19. Rc1 Rcd8 20. Ne1 e5 21. Rd1 exd4 22. exd4 Qe7 23. d5 Qe3+ 24. Kh1 Rxd5 25. Rcxd5 Ne7 26. Ng2 Nxd5 27. Qxc6 bxc6 28. Nxe3 Nxe3 29. Rd7 a5 30. Ra7 g6 31. Rxa5 Rd8 32. Kg1 Rd2 33. Kf2 Nf5 34. b3 Rb2 35. Ke1 Nd4 36. Bc4 Rxh2 37. Ra7 Nf3+ 38. Kd1 Ne5 39. a4 Nxc4 40. bxc4 Ra2 41. a5 h5 42. Ra8+ Kg7 43. a6 g5 44. a7 h4 45. gxh4 gxh4 46. Rc8 Rxa7 47. Rxc6 0-1

[Event "Tokyo City-ch"]
[Site "Tokyo"]
[Date "2019.03.23"]
[Round "3"]
[White "Aoshima, Mirai"]
[Black "Koshiba, Leo"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2445"]
[BlackElo "1810"]
[PlyCount "47"]
[EventDate "2019.03.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nf3 g6 5. Nbd2 Bg7 6. e4 d6 7. cxb5 Nbd7 8. a4 a6 9. Ra3 0-0 10. Bd3 Qc7 11. 0-0 axb5 12. axb5 Bb7 13. Qe2 Ng4 14. Nc4 Rfc8 15. Bd2 Nge5 16. Nfxe5 Nxe5 17. Ba5 Rxa5 18. Nxa5 Ba8 19. Nc6 Bxc6 20. dxc6 Rb8 21. Rfa1 Qc8 22. Ra7 Qe6 23. c7 Rc8 24. b6 1-0

[Event "Tokyo City-ch"]
[Site "Tokyo"]
[Date "2019.03.23"]
[Round "2"]
[White "Koshiba, Leo"]
[Black "Otawa, Yuto"]
[Result "1-0"]
[ECO "C08"]
[WhiteElo "1810"]
[BlackElo "2151"]
[PlyCount "137"]
[EventDate "2019.03.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nf6 6. c4 Nc6 7. cxd5 Nxd5 8. Nb3 cxd4 9. Nbxd4 Bb4+ 10. Bd2 0-0 11. Nxc6 bxc6 12. Be2 Qf6 13. 0-0 Bf5 14. Bxb4 Nxb4 15. Qd4 Qe7 16. Bc4 Rad8 17. Qf4 Qe4 18. Qxe4 Bxe4 19. Rfd1 Nd5 20. Ne5 Rc8 21. Nxc6 Rxc6 22. Bxd5 Bxd5 23. Rxd5 Rfc8 24. Rad1 Kf8 25. Kf1 Rc1 26. Rxc1 Rxc1+ 27. Ke2 Ke7 28. Kf3 g6 29. Ra5 Rc7 30. Ra6 Rb7 31. b3 h5 32. Ke3 Kd7 33. Kd3 Kc7 34. Kc4 Kb8 35. a4 Rc7+ 36. Kd5 Kb7 37. Rf6 Rd7+ 38. Kc5 Kc7 39. b4 Re7 40. a5 Re5+ 41. Kd4 Re7 42. b5 Kb7 43. Kc5 Re5+ 44. Kc4 Re7 45. Kd5 Kc7 46. b6+ axb6 47. axb6+ Kb7 48. Kd6 Re2 49. Kd7 h4 50. h3 g5 51. Kd8 Re1 52. g3 g4 53. hxg4 hxg3 54. fxg3 Re3 55. Rxf7+ Kxb6 56. Rg7 Kc6 57. g5 Rxg3 58. Ke7 Kd5 59. Kf6 Rf3+ 60. Kg6 Ke6 61. Ra7 Rg3 62. Kh6 Rh3+ 63. Kg7 Rg3 64. g6 Rb3 65. Kh8 Rb8+ 66. Kh7 Rb3 67. Ra6+ Ke7 68. g7 Rh3+ 69. Rh6 1-0

