[Event "Sapporo Hokkaido-ch"]
[Site "Sapporo"]
[Date "2021.03.28"]
[Round "4"]
[White "Nishimori, Toshiyuki"]
[Black "Watanabe, Katsumi"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "1712"]
[BlackElo "1604"]
[PlyCount "88"]
[EventDate "2021.03.27"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "JPN"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. h3 Nf6 4. Nc3 Be7 5. Bc4 0-0 6. d3 Nbd7 7. Be3 Nb6 8. Bb3 Be6 9. 0-0 Bxb3 10. axb3 a6 11. d4 Nbd7 12. d5 h6 13. Re1 Nh7 14. Ne2 f5 15. exf5 Rxf5 16. Ng3 Rf7 17. c4 Ng5 18. Nxg5 Bxg5 19. Ne4 Bxe3 20. Rxe3 Nf6 21. Qd3 Qe7 22. Ng3 Raf8 23. Nf5 Qd7 24. Rg3 e4 25. Nxh6+ Kh7 26. Nxf7 exd3 27. Ng5+ Kg8 28. Ne6 Rf7 29. Rd1 Ne4 30. Re3 Nxf2 31. Rd2 Nxh3+ 32. Rxh3 Rf6 33. Re3 Qf7 34. Rdxd3 Rf1+ 35. Kh2 Qh5+ 36. Rh3 Qe5+ 37. Rhg3 Rf6 38. Rde3 Qh5+ 39. Rh3 Qd1 40. Ng5 Rf8 41. Ne6 Rf7 42. Ng5 Rf8 43. Ne6 Rf7 44. Ng5 Rf8 1/2-1/2

[Event "Sapporo Hokkaido-ch"]
[Site "Sapporo"]
[Date "2021.03.28"]
[Round "5"]
[White "Watanabe, Katsumi"]
[Black "Yoshii, Yukihiko"]
[Result "1-0"]
[ECO "C59"]
[WhiteElo "1604"]
[BlackElo "1797"]
[PlyCount "47"]
[EventDate "2021.03.27"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "JPN"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nf3 Qc7 10. d4 e4 11. Ne5 Bd6 12. Bf4 0-0 13. Bg3 Be6 14. c4 Qe7 15. Qa4 Rac8 16. Nc3 Bc7 17. b4 Nb7 18. Nxc6 Qd7 19. Bxc7 Rxc7 20. d5 Bf5 21. 0-0 Nd6 22. c5 Nc8 23. Bb5 Nxd5 24. Nxd5 1-0

[Event "Sapporo Hokkaido-ch"]
[Site "Sapporo"]
[Date "2021.03.27"]
[Round "2"]
[White "Sugimoto, Koichi"]
[Black "Watanabe, Katsumi"]
[Result "1-0"]
[ECO "D56"]
[WhiteElo "2008"]
[BlackElo "1604"]
[PlyCount "89"]
[EventDate "2021.03.27"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "JPN"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 Be7 5. Nc3 h6 6. Bh4 0-0 7. e3 Ne4 8. Bxe7 Qxe7 9. Rc1 Nd7 10. Bd3 Ndf6 11. 0-0 c6 12. Qc2 Nxc3 13. Qxc3 dxc4 14. Bxc4 Ne4 15. Qc2 f5 16. Bd3 Ng5 17. Ne5 Nf7 18. Ng6 Qg5 19. Nxf8 Kxf8 20. e4 f4 21. Qc5+ Kg8 22. Qxg5 hxg5 23. e5 Bd7 24. b4 Rd8 25. Rfd1 Bc8 26. b5 cxb5 27. Bxb5 Nh6 28. Bd3 Bd7 29. Be4 Ba4 30. Rd3 Rd7 31. d5 exd5 32. Bxd5+ Kf8 33. e6 Rd6 34. Rc8+ Ke7 35. Rc7+ Kf6 36. Bc4 Rc6 37. Rxc6 Bxc6 38. Kf1 Ng8 39. Ke1 Bxg2 40. f3 Ne7 41. Kf2 Bh3 42. Rd7 Nc6 43. Rf7+ Kg6 44. Rxb7 Na5 45. e7 1-0

[Event "Sapporo Hokkaido-ch"]
[Site "Sapporo"]
[Date "2021.03.27"]
[Round "1"]
[White "Watanabe, Katsumi"]
[Black "Ikogba, Kelvin"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "1604"]
[PlyCount "131"]
[EventDate "2021.03.27"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "JPN"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. 0-0 g6 6. d4 Bg7 7. c3 Ngf6 8. e5 dxe5 9. dxe5 Ng4 10. Re1 Ngxe5 11. Bf4 Nxf3+ 12. Qxf3 0-0 13. Nd2 Nf6 14. Qh3 Nh5 15. Be3 b6 16. Nf3 Qc7 17. Ng5 h6 18. Nf3 Kh7 19. g4 Nf4 20. Bxf4 Qxf4 21. Rxe7 Rfe8 22. Rxe8 Rxe8 23. Qg3 Qc4 24. h4 Re2 25. h5 Re4 26. hxg6+ fxg6 27. Nh2 Be5 28. Qg2 Bxh2+ 29. Kxh2 Qe6 30. Rg1 h5 31. Qh3 Qe5+ 32. Kh1 Qe6 33. f3 Re3 34. Rg3 Re2 35. gxh5 Qxh3+ 36. Rxh3 Rxb2 37. hxg6+ Kxg6 38. Rg3+ Kf5 39. Rg2 Rb5 40. Rg4 Ra5 41. Kg2 Rxa2+ 42. Kg3 a5 43. Rf4+ Ke5 44. Re4+ Kd5 45. c4+ Kd6 46. Kg4 a4 47. Kf5 Rh2 48. Re6+ Kd7 49. Rxb6 a3 50. Ra6 a2 51. f4 Rc2 52. Ra4 Rxc4 53. Rxa2 Kc6 54. Ke5 Rc1 55. f5 Rf1 56. Ke6 c4 57. f6 Re1+ 58. Kf7 Kc5 59. Kg8 Rg1+ 60. Kf8 c3 61. f7 Kd4 62. Ke7 Re1+ 63. Kd6 Rf1 64. Ke7 Re1+ 65. Kd6 Rf1 66. Ke7 1/2-1/2

[Event "Sapporo Hokkaido-ch"]
[Site "Sapporo"]
[Date "2021.03.27"]
[Round "3"]
[White "Watanabe, Katsumi"]
[Black "Sato, Yasuji"]
[Result "1/2-1/2"]
[ECO "C58"]
[WhiteElo "1604"]
[BlackElo "1498"]
[PlyCount "117"]
[EventDate "2021.03.27"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "JPN"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 Nxc6 8. 0-0 h6 9. Nf3 Bd6 10. d4 exd4 11. Nxd4 Qc7 12. Re1+ Kf8 13. Bxc6 Bxh2+ 14. Kf1 bxc6 15. Qd3 Bb7 16. Nc3 Rd8 17. Qc4 c5 18. Nf3 Bxf3 19. gxf3 Qc6 20. Re3 Rd4 21. Qb5 Qc8 22. Ke2 Bf4 23. Na4 Bxe3 24. Bxe3 Rd8 25. Bxc5+ Kg8 26. Nc3 Kh7 27. Be3 Rhe8 28. Qb3 Kg8 29. Rg1 Nh5 30. Qb5 Nf4+ 31. Ke1 Qh3 32. Ne2 Ng2+ 33. Rxg2 Qxg2 34. Nd4 Qh1+ 35. Ke2 Re6 36. c3 Rb6 37. Qa5 Rxb2+ 38. Kd3 Qd1+ 39. Kc4 Rc8+ 40. Kd5 Rb6 41. Qxa7 Rd8+ 42. Ke4 Qb1+ 43. Ke5 f6+ 44. Kf4 Rbd6 45. Qc7 g5+ 46. Kg4 Qg1+ 47. Kf5 Qb1+ 48. Kg4 Qg1+ 49. Kf5 R8d7 50. Qc8+ Kg7 51. Ne6+ Kh7 52. Nf8+ Kg7 53. Nxd7 Qb1+ 54. Kg4 f5+ 55. Kh3 Qh1+ 56. Kg3 Qg1+ 57. Kh3 Qh1+ 58. Kg3 Qg1+ 59. Kh3 1/2-1/2

