[Event "Sao Paulo Medicinas Team Cup"]
[Site "Sao Paulo"]
[Date "2021.09.07"]
[Round "7.3"]
[White "Katsuyama, Eric Shih"]
[Black "Martins, Andre Giacomazzi"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "1253"]
[BlackElo "1497"]
[PlyCount "73"]
[EventDate "2021.09.04"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]
[WhiteTeam "ABC"]
[BlackTeam "Santa Casa"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. d4 d5 2. c4 e6 3. cxd5 exd5 4. Nc3 c6 5. Nf3 Bd6 6. Bg5 Ne7 7. e3 f6 8. Bh4 Qb6 9. Rb1 Bf5 10. Bd3 Bxd3 11. Qxd3 Qa6 12. Qxa6 Nxa6 13. a3 0-0-0 14. Bg3 Bxg3 15. hxg3 Nc7 16. b4 Nb5 17. Nxb5 cxb5 18. Rc1+ Kd7 19. Nd2 b6 20. Nb1 h6 21. Nc3 Rc8 22. 0-0 a6 23. g4 Rc4 24. Rc2 Rhc8 25. Rfc1 Ke6 26. Kf1 f5 27. f3 fxg4 28. fxg4 Kf6 29. Ke1 Kg5 30. Kd2 Kxg4 31. a4 bxa4 32. Nxa4 Rxc2+ 33. Rxc2 Rxc2+ 34. Kxc2 Kf5 35. Kd3 Nc8 36. Nc3 Ke6 37. e4 1/2-1/2

[Event "Sao Paulo Medicinas Team Cup"]
[Site "Sao Paulo"]
[Date "2021.09.05"]
[Round "3.3"]
[White "Katsuyama, Eric Shih"]
[Black "Lopes, Lucca Moreira"]
[Result "0-1"]
[ECO "E91"]
[WhiteElo "1253"]
[PlyCount "70"]
[EventDate "2021.09.04"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]
[WhiteTeam "ABC"]
[BlackTeam "Santos"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Nf3 d6 6. Be2 Nfd7 7. 0-0 c5 8. d5 Bxc3 9. bxc3 Re8 10. Qd2 e6 11. dxe6 Rxe6 12. Ng5 Rf6 13. h4 Qf8 14. h5 Nb6 15. hxg6 fxg6 16. f3 Nc6 17. Qe1 h6 18. Nh3 Bxh3 19. gxh3 Ne5 20. f4 Nexc4 21. Bxc4+ Nxc4 22. Qd1 Qf7 23. f5 Ne5 24. Bxh6 gxf5 25. Bg5 Qg6 26. Rxf5 Rxf5 27. Qd5+ Kh8 28. exf5 Qxg5+ 29. Qg2 Qe3+ 30. Qf2 Rg8+ 31. Kf1 Qd3+ 32. Qe2 Qxh3+ 33. Ke1 Rg1+ 34. Kd2 Rxa1 35. f6 Rxa2+ 0-1

[Event "Sao Paulo Medicinas Team Cup"]
[Site "Sao Paulo"]
[Date "2021.09.04"]
[Round "1.3"]
[White "Puccinelli, Humberto Haik"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "C01"]
[BlackElo "1253"]
[PlyCount "49"]
[EventDate "2021.09.04"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]
[WhiteTeam "Taubate"]
[BlackTeam "ABC"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nc6 5. c3 Bd6 6. Nf3 Bg4 7. 0-0 Nge7 8. Bg5 f6 9. Be3 Qd7 10. Nbd2 0-0-0 11. b4 Bf5 12. Nb3 Bxd3 13. Qxd3 Nf5 14. Nc5 Bxc5 15. bxc5 Nce7 16. Rab1 c6 17. a4 g5 18. a5 a6 19. Rb2 Nh4 20. Nxh4 gxh4 21. Rfb1 b5 22. axb6 Qb7 23. Bf4 Ng6 24. Bc7 Rdg8 25. Qf5# 1-0

[Event "Sao Jose dos Campos op 3rd"]
[Site "Sao Jose dos Campos"]
[Date "2021.08.22"]
[Round "4"]
[White "Katsuyama, Eric Shih"]
[Black "Ramos, Enzo de Almeida"]
[Result "0-1"]
[ECO "E40"]
[WhiteElo "1253"]
[BlackElo "1272"]
[PlyCount "65"]
[EventDate "2021.08.21"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 Bxc3+ 5. bxc3 0-0 6. Nf3 b6 7. Bd3 h6 8. 0-0 Bb7 9. Nd2 d6 10. Ba3 Nbd7 11. Qc2 Re8 12. Nb3 Qe7 13. Rae1 c5 14. Nd2 Nf8 15. e4 N8d7 16. e5 dxe5 17. dxe5 Ng4 18. Nf3 Bxf3 19. gxf3 Ngxe5 20. Bc1 Nxf3+ 21. Kh1 Nxe1 22. Rxe1 Qf6 23. Be4 Rad8 24. Rg1 Kf8 25. f3 Ne5 26. Qg2 Ng6 27. Qg3 Re7 28. Qh3 Nf4 29. Qg4 Ne2 30. Bg5 Qxg5 31. Qxg5 hxg5 32. Rxg5 Rd1+ 33. Kg2 0-1

[Event "Sao Jose dos Campos op 3rd"]
[Site "Sao Jose dos Campos"]
[Date "2021.08.21"]
[Round "3"]
[White "Dias, Juliane de Oliveira"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "C04"]
[WhiteElo "1681"]
[BlackElo "1253"]
[PlyCount "89"]
[EventDate "2021.08.21"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. c3 Nf6 5. e5 Nd7 6. Bb5 f6 7. Ngf3 fxe5 8. Bxc6 bxc6 9. Nxe5 Nxe5 10. Qh5+ Ng6 11. Nf3 Be7 12. Ne5 Rf8 13. Nxg6 hxg6 14. Qxg6+ Kd7 15. 0-0 Qe8 16. Qxg7 Qf7 17. Qh6 Ba6 18. Be3 Bxf1 19. Rxf1 Rh8 20. Qf4 Qxf4 21. Bxf4 Bd6 22. Bg3 Bxg3 23. fxg3 Rhf8 24. Re1 Rf7 25. h4 Raf8 26. Re2 Rf1+ 27. Kh2 R1f2 28. Rxf2 Rxf2 29. h5 Rf6 30. g4 Kd6 31. Kg3 c5 32. g5 Rf5 33. Kg4 Ke7 34. h6 Kf7 35. Kh5 Kg8 36. g4 Rf7 37. Kg6 Rh7 38. Kf6 Rxh6+ 39. Ke7 cxd4 40. cxd4 Rh4 41. g6 Rxg4 42. Kf6 Rxg6+ 43. Kxg6 Kh8 44. b3 c5 45. dxc5 1-0

[Event "Sao Jose dos Campos op 3rd"]
[Site "Sao Jose dos Campos"]
[Date "2021.08.21"]
[Round "2"]
[White "Katsuyama, Eric Shih"]
[Black "De Freitas, Fabio Ruiz"]
[Result "0-1"]
[ECO "E46"]
[WhiteElo "1253"]
[BlackElo "1618"]
[PlyCount "80"]
[EventDate "2021.08.21"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. e3 Bb4+ 4. Nc3 0-0 5. Nge2 Re8 6. a3 Bf8 7. Ng3 d5 8. Bd3 dxc4 9. Bxc4 e5 10. 0-0 exd4 11. exd4 Qe7 12. Be2 Nc6 13. Bg5 b6 14. Bxf6 gxf6 15. Bb5 f5 16. Rc1 Bd7 17. Bxc6 Bxc6 18. d5 Bb7 19. Nh5 Qg5 20. Qd4 f4 21. Qd3 Bg7 22. Qe2 Qf5 23. Ng3 Qh5 24. Nxh5 Rxe2 25. Nd1 f3 26. gxf3 Bxd5 27. Rxc7 Rae8 28. Ne3 Bd4 29. Nxd5 Rd8 30. b3 Rxd5 31. Rfc1 Kf8 32. h4 Rd8 33. f4 Rde8 34. Rd1 Re1+ 35. Rxe1 Rxe1+ 36. Kg2 Re2 37. Nf6 Kg7 38. h5 Kxf6 39. Kh3 Rxf2 40. b4 b5 0-1

[Event "Sao Jose dos Campos op 3rd"]
[Site "Sao Jose dos Campos"]
[Date "2021.08.21"]
[Round "1"]
[White "Souza, Ramon Santana De"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1834"]
[BlackElo "1253"]
[PlyCount "60"]
[EventDate "2021.08.21"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 Nh6 7. b4 cxd4 8. cxd4 Nf5 9. Bb2 Be7 10. g3 0-0 11. Bh3 Bd7 12. 0-0 Rac8 13. Bxf5 exf5 14. Nc3 Be6 15. Qd2 f6 16. exf6 Bxf6 17. Na4 Qc7 18. Nc5 Bd7 19. Ne5 Bxe5 20. dxe5 Rfe8 21. Qxd5+ Be6 22. Nxe6 Qf7 23. Nf4 Qxd5 24. Nxd5 Nxe5 25. Bxe5 Rxe5 26. Rfd1 Kf7 27. Nf4 g5 28. Rd7+ Re7 29. Rxe7+ Kxe7 30. Re1+ Kd6 1-0

[Event "Sao Jose dos Campos IRT op"]
[Site "Sao Jose dos Campos"]
[Date "2020.12.20"]
[Round "5"]
[White "Katsuyama, Eric Shih"]
[Black "Takano Ito, Raphael Kenzo"]
[Result "0-1"]
[ECO "B16"]
[WhiteElo "1548"]
[BlackElo "1147"]
[PlyCount "56"]
[EventDate "2020.12.18"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. d4 Bg4 7. Be3 e6 8. c3 Bd6 9. Bd3 Nd7 10. Qc2 Qc7 11. h3 Bxf3 12. gxf3 0-0-0 13. d5 exd5 14. Bxa7 c5 15. Qb3 Qa5 16. Qa3 Qxa3 17. bxa3 c4 18. Bf5 Rhe8+ 19. Kf1 Re5 20. Bxh7 b6 21. f4 Rh5 22. Bc2 Kb7 23. Bxb6 Nxb6 24. Rb1 Kc7 25. Rg1 Bxf4 26. Rg7 Rd7 27. Bd1 Rxh3 28. Bg4 Rh1+ 0-1

[Event "Sao Jose dos Campos IRT op"]
[Site "Sao Jose dos Campos"]
[Date "2020.12.20"]
[Round "4"]
[White "Melo, Sergio Roberto Samp"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "1736"]
[BlackElo "1548"]
[PlyCount "85"]
[EventDate "2020.12.18"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 c5 3. e3 Nc6 4. Bb2 Nf6 5. Bb5 Bd7 6. 0-0 e6 7. c4 a6 8. Bxc6 Bxc6 9. Ne5 Bd6 10. Nxc6 bxc6 11. d3 Qc7 12. h3 Be7 13. Nd2 0-0 14. Nf3 Nd7 15. Qc2 Bf6 16. Bxf6 Nxf6 17. Rac1 Rac8 18. cxd5 cxd5 19. d4 Nd7 20. dxc5 Qxc5 21. Qxc5 Nxc5 22. Rfd1 a5 23. Rc2 Na6 24. Rdc1 Rxc2 25. Rxc2 Nb4 26. Rc5 Ra8 27. a3 Nd3 28. Rc3 Nb2 29. Rc2 Nd3 30. Rc3 Nb2 31. Nd4 e5 32. Nc6 f6 33. Ne7+ Kf7 34. Nxd5 Rd8 35. e4 Ke6 36. Rc7 Rd7 37. Rc2 Nd3 38. Kf1 Nf4 39. Rc6+ Rd6 40. Rxd6+ Kxd6 41. Nxf4 exf4 42. Ke2 Ke5 43. Kd3 1-0

[Event "Sao Jose dos Campos IRT op"]
[Site "Sao Jose dos Campos"]
[Date "2020.12.19"]
[Round "3"]
[White "Katsuyama, Eric Shih"]
[Black "De Oliveira, John Richard Aparec"]
[Result "0-1"]
[ECO "C13"]
[WhiteElo "1548"]
[BlackElo "1456"]
[PlyCount "24"]
[EventDate "2020.12.18"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Bg5 Be7 7. Bd3 Nxe4 8. Bxe7 Qxe7 9. Bxe4 Qb4+ 10. c3 Qxb2 11. Rb1 Qxc3+ 12. Kf1 c6 0-1

[Event "Sao Jose dos Campos IRT op"]
[Site "Sao Jose dos Campos"]
[Date "2020.12.18"]
[Round "1"]
[White "Katsuyama, Eric Shih"]
[Black "Haraguchi, Matheus Sashaki"]
[Result "1/2-1/2"]
[ECO "D55"]
[WhiteElo "1548"]
[BlackElo "1690"]
[PlyCount "63"]
[EventDate "2020.12.18"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 b6 6. Nf3 0-0 7. Be2 Bb7 8. 0-0 Nbd7 9. Rc1 Rc8 10. cxd5 Nxd5 11. Bxe7 Qxe7 12. Nxd5 exd5 13. Re1 Kh8 14. Bd3 c5 15. b3 a6 16. dxc5 bxc5 17. Qe2 Qd6 18. e4 dxe4 19. Bxe4 Rce8 20. Qc2 Bxe4 21. Rxe4 Rxe4 22. Qxe4 Nf6 23. Qc4 Rd8 24. Ng5 Qd1+ 25. Rxd1 Rxd1+ 26. Qf1 Rxf1+ 27. Kxf1 Kg8 28. Ke2 Kf8 29. Kd3 Ke7 30. Ne4 Nxe4 31. Kxe4 Ke6 32. Kd3 1/2-1/2

[Event "Sao Jose dos Campos IRT op"]
[Site "Sao Jose dos Campos"]
[Date "2020.12.18"]
[Round "2"]
[White "Miquelin, Nicolas Seoane"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "A38"]
[WhiteElo "2068"]
[BlackElo "1548"]
[PlyCount "63"]
[EventDate "2020.12.18"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 d6 6. g3 g6 7. Bg2 Bd7 8. Nc2 Bg7 9. 0-0 0-0 10. Bg5 Rc8 11. Qd2 a6 12. b3 Na5 13. Nd4 Nc6 14. Nc2 Ne8 15. Rac1 Qa5 16. Nd5 Qxd2 17. Bxd2 Nc7 18. Nb6 Rcd8 19. Nxd7 Rxd7 20. Rfd1 Ne6 21. Ne3 Ned4 22. Kf1 e6 23. Bc3 Rfd8 24. Rd2 Nf5 25. Nd1 Bh6 26. e3 d5 27. cxd5 exd5 28. Bf6 Nce7 29. g4 Nd6 30. Nc3 Rc8 31. Rcd1 Rxc3 32. Bxc3 1-0

[Event "Sao Paulo Hebraica op 27th"]
[Site "Sao Paulo"]
[Date "2020.01.11"]
[Round "4"]
[White "Correia da Silva, Gabriel Medeiros"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "C15"]
[WhiteElo "1198"]
[BlackElo "1539"]
[PlyCount "27"]
[EventDate "2020.01.10"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd2 Bxc3 5. Bxc3 dxe4 6. d5 Qxd5 7. Qxd5 exd5 8. Bxg7 Nc6 9. Bxh8 Nb4 10. 0-0-0 Nxa2+ 11. Kb1 Nb4 12. Bc3 Bg4 13. Be2 Nf6 14. Bxb4 1-0

[Event "Sao Paulo Hebraica op 27th"]
[Site "Sao Paulo"]
[Date "2020.01.11"]
[Round "3"]
[White "Katsuyama, Eric Shih"]
[Black "Scolastici, Marcus Vinicius"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "1539"]
[BlackElo "1166"]
[PlyCount "46"]
[EventDate "2020.01.10"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. Re1 d5 6. exd5 Nxd5 7. Nxe5 Nxe5 8. Rxe5+ Ne7 9. Rxc5 Qd4 10. Bb5+ c6 11. Rc4 Qd5 12. Bxc6+ bxc6 13. d3 0-0 14. Nc3 Qe6 15. Qe2 Qd7 16. Bf4 Ba6 17. Re4 Rfe8 18. Re1 Kf8 19. Na4 f5 20. Nc5 Qd8 21. Ne6+ Kg8 22. Nxd8 fxe4 23. Qxe4 Raxd8 1/2-1/2

[Event "Sao Paulo Hebraica op 27th"]
[Site "Sao Paulo"]
[Date "2020.01.10"]
[Round "1"]
[White "Katsuyama, Eric Shih"]
[Black "Canonico, Rodrigo"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "1539"]
[BlackElo "1700"]
[PlyCount "74"]
[EventDate "2020.01.10"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. c4 f5 2. g3 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Bg2 0-0 6. 0-0 d6 7. d3 e5 8. Bg5 c6 9. Rc1 Be6 10. b3 Nbd7 11. Qd2 d5 12. cxd5 cxd5 13. e4 fxe4 14. dxe4 d4 15. Na4 Qe8 16. Rfe1 Rc8 17. Bh6 Nxe4 18. Rxe4 Rxc1+ 19. Qxc1 Bd5 20. Rh4 Bf6 21. Bg5 Bxf3 22. Bxf3 Bxg5 23. Bd5+ Kh8 24. Qxg5 Rf5 25. Qh6 Nf6 26. g4 Rf4 27. Nc5 Rxg4+ 28. Rxg4 Nxg4 29. Qh3 Nf6 30. Qe6 Qd8 31. Nxb7 Qxd5 32. Qxf6+ Kg8 33. Qd6 Qxb7 34. Qxe5 Qd7 35. Kf1 Qh3+ 36. Ke1 Qc3+ 37. Ke2 d3+ 0-1

[Event "Sao Paulo Hebraica op 27th"]
[Site "Sao Paulo"]
[Date "2020.01.10"]
[Round "2"]
[White "Kojima, Rodrigo Yosuke"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "1513"]
[BlackElo "1539"]
[PlyCount "51"]
[EventDate "2020.01.10"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. h3 d6 5. e3 0-0 6. Be2 Nbd7 7. 0-0 c5 8. c3 cxd4 9. exd4 Nb6 10. Nbd2 Be6 11. a4 Rc8 12. Bh2 Nc4 13. Nxc4 Bxc4 14. Bxc4 Rxc4 15. Qb3 Qc8 16. Nd2 Rc7 17. Rfe1 Re8 18. Rac1 Nd7 19. Nf3 h6 20. Re2 e5 21. Rce1 Re6 22. dxe5 dxe5 23. Nxe5 Nc5 24. Qa2 Rce7 25. Nxg6 fxg6 26. Bd6 1-0

[Event "Sao Paulo ECP op 5th"]
[Site "Sao Paulo"]
[Date "2019.12.01"]
[Round "5"]
[White "Katsuyama, Eric Shih"]
[Black "Borger, Daniel"]
[Result "0-1"]
[ECO "A26"]
[WhiteElo "1539"]
[BlackElo "1547"]
[PlyCount "64"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 d6 6. 0-0 Be6 7. d3 h6 8. a3 Qd7 9. Nd5 Nce7 10. Nxe7 Nxe7 11. Re1 Bh3 12. Bh1 0-0 13. Be3 c6 14. Rc1 f5 15. Qb3 Kh8 16. Qa4 f4 17. Bd2 Qg4 18. c5 Nf5 19. Bxf4 exf4 20. Qxf4 Qxf4 21. gxf4 Bxb2 22. Rb1 Bxa3 23. Rxb7 Bxc5 24. e4 Nd4 25. Nh4 Rg8 26. Re3 Bc8 27. Rf7 g5 28. fxg5 Rxg5+ 29. Bg2 Rb8 30. f4 Rg4 31. Rh3 Nf3+ 32. Kf1 Nxh4 0-1

[Event "Sao Paulo ECP op 5th"]
[Site "Sao Paulo"]
[Date "2019.11.30"]
[Round "4"]
[White "Jafet Junior, Carlos"]
[Black "Katsuyama, Eric Shih"]
[Result "1/2-1/2"]
[ECO "B25"]
[WhiteElo "1591"]
[BlackElo "1539"]
[PlyCount "57"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 d6 7. Nge2 Nge7 8. f4 b5 9. Qd2 b4 10. Nd1 Rb8 11. 0-0 0-0 12. Rb1 Nd4 13. c3 Nxe2+ 14. Qxe2 Ba6 15. Qd2 Nc6 16. Nf2 Qa5 17. cxb4 Qxb4 18. b3 Qxd2 19. Bxd2 Bd4 20. Rfe1 Bxd3 21. Rbd1 Bxf2+ 22. Kxf2 Ba6 23. f5 Nb4 24. Bh6 Rfd8 25. Bf1 Bxf1 26. Kxf1 exf5 27. exf5 Re8 28. fxg6 Rxe1+ 29. Rxe1 1/2-1/2

[Event "Sao Paulo ECP op 5th"]
[Site "Sao Paulo"]
[Date "2019.11.30"]
[Round "3"]
[White "Katsuyama, Eric Shih"]
[Black "Chancharulo, Gustavo"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "1539"]
[BlackElo "1553"]
[PlyCount "41"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. 0-0 Nf6 5. Re1 0-0 6. c3 d6 7. d4 Bg4 8. d5 Na5 9. Nbd2 Nxc4 10. Nxc4 Qd7 11. Bg5 Bxf3 12. Qxf3 Nxd5 13. Bxe7 Nxe7 14. Rad1 Qe6 15. b3 f5 16. exf5 Rxf5 17. Qg4 Qf6 18. Ne3 Rg5 19. Qc4+ Kh8 20. Qxc7 Rf8 21. Rf1 1/2-1/2

[Event "Sao Paulo ECP op 5th"]
[Site "Sao Paulo"]
[Date "2019.11.29"]
[Round "2"]
[White "Merguizo, Marco Antonio"]
[Black "Katsuyama, Eric Shih"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "1550"]
[BlackElo "1539"]
[PlyCount "43"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. d3 Bc5 7. Bg2 0-0 8. 0-0 Re8 9. Ne4 Bb6 10. a3 a5 11. Ned2 Bg4 12. Nc4 Bxf3 13. Bxf3 Nd4 14. Bg2 c6 15. e3 Nb5 16. e4 Nf6 17. Bg5 Bc7 18. Qd2 Nd4 19. Qd1 b5 20. Nd2 h6 21. Be3 Bb6 22. Kh1 1/2-1/2

[Event "Sao Paulo Karman Cup"]
[Site "Sao Paulo"]
[Date "2019.08.17"]
[Round "4"]
[White "Katsuyama, Eric Shih"]
[Black "Usui, Gabriella Yumi"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1018"]
[BlackElo "1185"]
[PlyCount "52"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 d5 7. exd5 Nxd5 8. c4 Nf6 9. Qxd8+ Nxd8 10. Bd3 Bb4+ 11. Bd2 Bxd2+ 12. N1xd2 0-0 13. 0-0 Nc6 14. Rfe1 Ne8 15. Be4 Nd8 16. Bd5 Nc7 17. Rxe5 Be6 18. Bxe6 Ndxe6 19. Rae1 Rad8 20. c5 Rfe8 21. Ne4 f6 22. Rh5 Nf4 23. Rh4 Ng6 24. Rg4 f5 25. Nd6 Rxe1+ 26. Kf2 fxg4 0-1

[Event "Sao Paulo Karman Cup"]
[Site "Sao Paulo"]
[Date "2019.08.17"]
[Round "3"]
[White "Neto, Valdeno Brito"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "1574"]
[BlackElo "1018"]
[PlyCount "41"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Bf5 3. g3 e6 4. Bg2 Nf6 5. 0-0 Be7 6. d3 0-0 7. Qe1 c5 8. Nh4 Nc6 9. Kh1 Nd4 10. Na3 Re8 11. e4 Bg4 12. c3 Ne2 13. Bd2 dxe4 14. dxe4 Qd3 15. Nf3 Nxe4 16. Ne5 N4xg3+ 17. hxg3 Nxg3+ 18. Kg1 Ne2+ 19. Kh2 Qf5 20. Nxg4 Qh5+ 21. Bh3 1-0

[Event "Sao Paulo Karman Cup"]
[Site "Sao Paulo"]
[Date "2019.08.16"]
[Round "1"]
[White "Haraguchi, Matheus Sashaki"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "1603"]
[BlackElo "1018"]
[PlyCount "49"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 Be7 5. e4 0-0 6. Nge2 Re8 7. 0-0 a6 8. h3 Rb8 9. a4 d6 10. Kh2 Be6 11. d3 Qd7 12. f4 Ng4+ 13. hxg4 Bxg4 14. f5 Nd4 15. Be3 b5 16. axb5 axb5 17. Bxd4 exd4 18. Nxb5 c6 19. Nbxd4 Rxb2 20. Bf3 Reb8 21. Bxg4 Qb7 22. Bh3 Bf6 23. Rc1 Bxd4 24. Rc2 Qb3 25. Nxd4 1-0

[Event "Sao Paulo Karman Cup"]
[Site "Sao Paulo"]
[Date "2019.08.16"]
[Round "2"]
[White "Katsuyama, Eric Shih"]
[Black "Dutra, Liliam Guedes"]
[Result "0-1"]
[ECO "B78"]
[WhiteElo "1018"]
[BlackElo "1488"]
[PlyCount "56"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. Bc4 Bd7 10. 0-0-0 Rc8 11. Bb3 a6 12. h4 Nxd4 13. Bxd4 Nh5 14. g4 Bxd4 15. Qxd4 Ng7 16. h5 Ne6 17. Bxe6 Bxe6 18. h6 f6 19. g5 Qc7 20. gxf6 Rxf6 21. Rdg1 Bxa2 22. Rxg6+ Rxg6 23. Rg1 e5 24. Rxg6+ hxg6 25. Qg1 Kh7 26. Kd1 Bf7 27. Qg5 Qc4 28. Qf6 Kxh6 0-1

[Event "Sao Paulo STD Gansl op"]
[Site "Sao Paulo"]
[Date "2019.05.26"]
[Round "5"]
[White "Katsuyama, Eric Shih"]
[Black "Da Rosa, Henrique Jaze Simoe"]
[Result "0-1"]
[ECO "C68"]
[WhiteElo "1037"]
[BlackElo "1673"]
[PlyCount "50"]
[EventDate "2019.05.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Bg4 6. Re1 Nf6 7. h3 Bxf3 8. Qxf3 Be7 9. c3 c5 10. Qe3 Qd6 11. f4 exf4 12. e5 fxe3 13. exd6 Bxd6 14. Rxe3+ Be7 15. b3 Nd5 16. Re1 0-0 17. Re5 Rad8 18. d4 cxd4 19. cxd4 Bf6 20. Re4 Nb4 21. Na3 Bxd4+ 22. Kf1 Bxa1 23. Rxb4 Rd1+ 24. Kf2 Rxc1 25. Rxb7 Rd8 0-1

[Event "Sao Paulo STD Gansl op"]
[Site "Sao Paulo"]
[Date "2019.05.26"]
[Round "6"]
[White "Pimenta, Mauri Moriggi"]
[Black "Katsuyama, Eric Shih"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "1260"]
[BlackElo "1037"]
[PlyCount "53"]
[EventDate "2019.05.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. b3 g6 3. Bb2 Bg7 4. Nf3 d6 5. e3 0-0 6. Be2 c5 7. 0-0 Nbd7 8. Nbd2 Rb8 9. a4 a6 10. Nc4 b5 11. axb5 axb5 12. Na5 Bb7 13. Bxb5 Bxf3 14. Qxf3 Rxb5 15. Nc6 Qe8 16. Na7 Rb8 17. Nc6 Ra8 18. Rxa8 Qxa8 19. Nxe7+ Kh8 20. Qxa8 Rxa8 21. dxc5 dxc5 22. Ra1 Rxa1+ 23. Bxa1 Nb6 24. Nc6 c4 25. Ne5 Kg8 26. Nxc4 Nxc4 27. bxc4 1/2-1/2

[Event "Sao Paulo STD Gansl op"]
[Site "Sao Paulo"]
[Date "2019.05.25"]
[Round "4"]
[White "Brujin, Homero"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "1493"]
[BlackElo "1037"]
[PlyCount "67"]
[EventDate "2019.05.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bc5 5. Bg2 0-0 6. 0-0 Re8 7. a3 a5 8. d3 d5 9. cxd5 Nxd5 10. Bd2 Nd4 11. Nxd4 Nxc3 12. bxc3 exd4 13. c4 Bg4 14. Re1 Rb8 15. Bxa5 Ra8 16. Bb4 Bxb4 17. axb4 Rxa1 18. Qxa1 Rxe2 19. Rxe2 Bxe2 20. Be4 g6 21. Qb1 f5 22. Bxb7 Qe8 23. Bg2 g5 24. Qc2 g4 25. Qd2 Bf3 26. Bxf3 gxf3 27. Kf1 Qa4 28. Ke1 Qa1+ 29. Qd1 Qc3+ 30. Kf1 Qxb4 31. Qxf3 Qb1+ 32. Kg2 Kf7 33. Qxf5+ Kg7 34. Qe5+ 1-0

[Event "Sao Paulo STD Gansl op"]
[Site "Sao Paulo"]
[Date "2019.05.24"]
[Round "2"]
[White "Katsuyama, Eric Shih"]
[Black "Okuda, Paulo Alexandre Yuj"]
[Result "0-1"]
[ECO "B76"]
[WhiteElo "1037"]
[BlackElo "1706"]
[PlyCount "46"]
[EventDate "2019.05.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 g6 6. Nc3 Bg7 7. Be3 0-0 8. Qd2 Nc6 9. 0-0-0 Re8 10. Kb1 Bd7 11. Bc4 Rc8 12. h4 Nxd4 13. Qxd4 Ng4 14. Qd2 Nxe3 15. Qxe3 Rxc4 16. Qxa7 Bxc3 17. bxc3 Qa8 18. Qxa8 Rxa8 19. Rd3 Be6 20. Rhd1 Rca4 21. e5 Rxa2 22. exd6 Ra1+ 23. Kb2 R8a2# 0-1

[Event "Sao Paulo Haroldo Salles op"]
[Site "Sao Paulo"]
[Date "2019.05.11"]
[Round "6.18"]
[White "Katsuyama, Eric Shih"]
[Black "Silva, Liara Blanco"]
[Result "0-1"]
[ECO "C06"]
[WhiteElo "1037"]
[BlackElo "1267"]
[PlyCount "120"]
[EventDate "2019.05.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Ngf3 c5 6. c3 Nc6 7. Bd3 Qb6 8. dxc5 Bxc5 9. 0-0 Ndxe5 10. Qc2 Nxd3 11. Qxd3 h6 12. b4 Bd6 13. b5 Ne5 14. Nxe5 Bxe5 15. Re1 Bf6 16. Bb2 0-0 17. a4 Bd7 18. Ra2 Rfd8 19. c4 Bxb2 20. Rxb2 dxc4 21. Nxc4 Qc7 22. b6 axb6 23. Nxb6 Ra6 24. Nxd7 Qxd7 25. Qxd7 Rxd7 26. Ra2 Rad6 27. h3 Rd1 28. Rxd1 Rxd1+ 29. Kh2 Rd4 30. a5 Rd5 31. a6 bxa6 32. Rxa6 Kh7 33. Ra7 Kg6 34. Kg3 Rf5 35. f3 Kf6 36. Kf2 Rd5 37. g4 h5 38. Kg3 hxg4 39. hxg4 Kg6 40. Re7 Kf6 41. Ra7 g5 42. Ra6 Kg6 43. Ra4 Rd6 44. Re4 f5 45. gxf5+ exf5 46. Re5 Kf6 47. f4 gxf4+ 48. Kxf4 Rd4+ 49. Kf3 Kxe5 50. Kf2 Rd3 51. Ke2 Ke4 52. Kf2 Re3 53. Kg2 Rf3 54. Kg1 Ke3 55. Kg2 f4 56. Kg1 Rf2 57. Kh1 Kf3 58. Kg1 Kg3 59. Kh1 Ra2 60. Kg1 Ra1# 0-1

[Event "Sao Paulo Haroldo Salles op"]
[Site "Sao Paulo"]
[Date "2019.05.10"]
[Round "3.23"]
[White "Katsuyama, Eric Shih"]
[Black "Hayashi, Kouki"]
[Result "0-1"]
[ECO "B55"]
[WhiteElo "1037"]
[BlackElo "1348"]
[PlyCount "60"]
[EventDate "2019.05.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 g6 6. c4 Bg7 7. Nc3 0-0 8. Bd3 Nc6 9. Be3 Bd7 10. 0-0 Qb6 11. Nxc6 Qxe3+ 12. Rf2 Bxc6 13. Qe2 Qxe2 14. Rxe2 Nh5 15. g3 Rab8 16. Nd5 Bxd5 17. exd5 Rfe8 18. Rae1 Kf8 19. b3 a6 20. g4 Nf4 21. Re3 Nxd3 22. Rxd3 b5 23. Re4 bxc4 24. Rxc4 Rec8 25. Rc6 Rxc6 26. dxc6 Rc8 27. Rd5 Rxc6 28. Kg2 Rc2+ 29. Kh3 Be5 30. Ra5 Rxh2# 0-1

[Event "Sao Paulo Haroldo Salles op"]
[Site "Sao Paulo"]
[Date "2019.05.09"]
[Round "2.16"]
[White "Costa, Iaggo Bernini"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "1516"]
[BlackElo "1037"]
[PlyCount "69"]
[EventDate "2019.05.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c3 e5 2. d4 Nc6 3. e3 d5 4. Nf3 e4 5. Nfd2 Nf6 6. c4 b6 7. cxd5 Qxd5 8. Nc3 Qe6 9. Bc4 Qe7 10. Qc2 Bf5 11. Nd5 Nb4 12. Qb3 Nfxd5 13. Bxd5 Nd3+ 14. Ke2 0-0-0 15. Bxf7 Bg4+ 16. f3 exf3+ 17. gxf3 Nf4+ 18. Kd1 Ng2 19. Nc4 Bxf3+ 20. Kc2 Qxf7 21. Nxb6+ cxb6 22. Qxf7 Be4+ 23. Kc3 Rd7 24. Qe8+ Kb7 25. Qxd7+ Ka6 26. Qc8+ Kb5 27. a4+ Ka5 28. Qc4 Bb4+ 29. Qxb4+ Ka6 30. Qc4+ Kb7 31. Qf7+ Kc6 32. Qe6+ Kb7 33. Qxe4+ Kb8 34. Qxg2 Rc8+ 35. Kb3 1-0

[Event "Sao Paulo Haroldo Salles op"]
[Site "Sao Paulo"]
[Date "2019.05.09"]
[Round "1.13"]
[White "Itagyba, Renan Fortes"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "1729"]
[BlackElo "1037"]
[PlyCount "49"]
[EventDate "2019.05.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 Nc6 4. Bg2 Bc5 5. e3 Rb8 6. Nge2 a6 7. 0-0 b5 8. d4 exd4 9. exd4 Bd6 10. c5 b4 11. Na4 Be7 12. d5 d6 13. dxc6 dxc5 14. Qxd8+ Bxd8 15. Nxc5 0-0 16. Bf4 Re8 17. Rfe1 Rb5 18. Nb7 Bxb7 19. cxb7 Nd5 20. Bxd5 Bf6 21. Bc6 Rxb7 22. Bxb7 Bxb2 23. Rab1 Rb8 24. Rxb2 Rxb7 25. Nd4 1-0

[Event "Sao Paulo-chT"]
[Site "Sao Paulo"]
[Date "2019.02.24"]
[Round "4.4"]
[White "Takano, Nicholas Ryo"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2075"]
[BlackElo "1037"]
[PlyCount "27"]
[EventDate "2019.02.23"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Espaco Xadrez Total"]
[BlackTeam "Sao Jose Medicina"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. g4 Nd7 10. 0-0-0 Nb6 11. h4 h5 12. gxh5 gxh5 13. Rg1 Na5 14. Qg2 1-0

[Event "Sao Paulo-chT"]
[Site "Sao Paulo"]
[Date "2019.02.24"]
[Round "3.4"]
[White "Tavares Neto, Estevao"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "A08"]
[WhiteElo "1885"]
[BlackElo "1037"]
[PlyCount "35"]
[EventDate "2019.02.23"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Sao Jose Taimanov"]
[BlackTeam "Sao Jose Medicina"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. Nf3 d5 2. g3 c5 3. d3 Nf6 4. Bg2 Nc6 5. 0-0 e6 6. Nbd2 Bd6 7. c3 0-0 8. Re1 Qc7 9. Qc2 Ne5 10. Nxe5 Bxe5 11. e4 c4 12. d4 Bxd4 13. cxd4 dxe4 14. Nxe4 Nxe4 15. Rxe4 f5 16. Re1 Rd8 17. Bf4 Qb6 18. Be5 1-0

[Event "Sao Paulo-chT"]
[Site "Sao Paulo"]
[Date "2019.02.23"]
[Round "2.4"]
[White "Katsuyama, Eric Shih"]
[Black "Nascimento, Roberto"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "1037"]
[BlackElo "2115"]
[PlyCount "56"]
[EventDate "2019.02.23"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Sao Jose Medicina"]
[BlackTeam "Sao Jose FIP"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. Nf3 Nf6 5. Be3 c6 6. Bd3 Nbd7 7. 0-0 0-0 8. Qd2 e5 9. dxe5 dxe5 10. Bh6 Re8 11. Bxg7 Kxg7 12. Ng5 h6 13. Nh3 Nc5 14. f4 Bxh3 15. gxh3 Qd4+ 16. Rf2 Nfxe4 17. Nxe4 Nxe4 18. Bxe4 Qxe4 19. Qd7 Rad8 20. Qg4 f5 21. Qe2 Qxe2 22. Rxe2 exf4 23. Rxe8 Rxe8 24. Rd1 Kf6 25. Rd7 Re7 26. Rd6+ Kg5 27. Kg2 Re2+ 28. Kf3 Rxh2 0-1

[Event "Sao Paulo-chT"]
[Site "Sao Paulo"]
[Date "2019.02.23"]
[Round "1.4"]
[White "Suardi, Roberto Jr"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2249"]
[BlackElo "1037"]
[PlyCount "43"]
[EventDate "2019.02.23"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Pinheiros"]
[BlackTeam "Sao Jose Medicina"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. Nf3 d5 2. b3 Nf6 3. e3 Nc6 4. Bb2 Bd7 5. Be2 e6 6. 0-0 Bd6 7. d4 0-0 8. c4 b6 9. Nc3 Ne4 10. Nb5 Qe7 11. Rc1 Nb4 12. Nxd6 Qxd6 13. a3 Na6 14. cxd5 exd5 15. Bxa6 c5 16. Be2 Rae8 17. Nd2 a6 18. Nxe4 Rxe4 19. Bf3 Re7 20. dxc5 bxc5 21. Bxd5 Rb8 22. Bxf7+ 1-0

[Event "Sao Paulo Salles Cup 11th"]
[Site "Sao Paulo"]
[Date "2017.03.26"]
[Round "6"]
[White "Katsuyama, Eric Shih"]
[Black "Gabriel, Claudiomar"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "1053"]
[BlackElo "1589"]
[PlyCount "52"]
[EventDate "2017.03.24"]
[EventType "swiss (blitz)"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d6 3. d4 Nc6 4. Nf3 Bg4 5. Be2 e5 6. d5 Ne7 7. 0-0 Ng6 8. Bb5+ Bd7 9. Bxd7+ Qxd7 10. Ne2 Be7 11. c4 Nxe4 12. Qd3 f5 13. Re1 0-0 14. b4 Qe8 15. c5 Nh4 16. cxd6 cxd6 17. Ng3 Nxg3 18. fxg3 e4 19. Qe3 Bd8 20. Nxh4 Bb6 21. Nxf5 Rxf5 22. Rf1 Rxf1+ 23. Kxf1 Bxe3 24. Bxe3 Qe5 25. Rd1 Rf8+ 26. Ke2 Qb2+ 0-1

[Event "Sao Paulo Salles Cup 11th"]
[Site "Sao Paulo"]
[Date "2017.03.26"]
[Round "5"]
[White "Katsuyama, Eric Shih"]
[Black "Pessoto, Lara Garcia"]
[Result "1/2-1/2"]
[ECO "C70"]
[WhiteElo "1053"]
[BlackElo "1664"]
[PlyCount "20"]
[EventDate "2017.03.24"]
[EventType "swiss (blitz)"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bc5 5. 0-0 d6 6. Bxc6+ bxc6 7. d4 exd4 8. Nxd4 Bd7 9. Re1 Qh4 10. c3 Ne7 1/2-1/2

[Event "Sao Paulo Salles Cup 11th"]
[Site "Sao Paulo"]
[Date "2017.03.25"]
[Round "3"]
[White "De Freitas, Fabio Ruiz"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "1589"]
[BlackElo "1053"]
[PlyCount "41"]
[EventDate "2017.03.24"]
[EventType "swiss (blitz)"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 Nf6 3. cxd5 Nxd5 4. e4 Nf6 5. Nc3 e5 6. Nxe5 Nxe4 7. Qa4+ Nc6 8. Nxc6 bxc6 9. Qxc6+ Bd7 10. Qxe4+ Qe7 11. Bc4 Qxe4+ 12. Nxe4 Bd6 13. Nxd6+ cxd6 14. 0-0 0-0 15. b3 a6 16. Re1 Rae8 17. Ba3 Re6 18. Bxe6 Re8 19. Bxd7 Rxe1+ 20. Rxe1 g6 21. Bxd6 1-0

[Event "Sao Paulo Salles Cup 11th"]
[Site "Sao Paulo"]
[Date "2017.03.25"]
[Round "4"]
[White "Salama, Henrique Eric"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "D94"]
[WhiteElo "1670"]
[BlackElo "1053"]
[PlyCount "75"]
[EventDate "2017.03.24"]
[EventType "swiss (blitz)"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. e3 0-0 5. Be2 d5 6. 0-0 Nbd7 7. Nc3 c6 8. Qb3 Qa5 9. Bd2 dxc4 10. Bxc4 b5 11. Nxb5 Qb6 12. Nc3 Ba6 13. Bxa6 Qxa6 14. Rfc1 Rab8 15. Qa4 Qxa4 16. Nxa4 Ne4 17. Rxc6 Nxd2 18. Nxd2 Rb4 19. b3 e5 20. d5 Nb6 21. Nxb6 axb6 22. Rac1 Rb5 23. d6 Rd5 24. Ne4 Rd8 25. Rc8 Rxc8 26. Rxc8+ Bf8 27. Nf6+ Kg7 28. Nxd5 Bxd6 29. Nxb6 f5 30. a4 Bb4 31. Nd5 Ba5 32. Rc5 Bd8 33. a5 Kf7 34. a6 Be7 35. Nxe7 Kxe7 36. a7 Kd6 37. Rc8 Kd5 38. a8Q+ 1-0

[Event "Sao Paulo Salles Cup 11th"]
[Site "Sao Paulo"]
[Date "2017.03.24"]
[Round "2"]
[White "Katsuyama, Eric Shih"]
[Black "Maraz, Ricardo"]
[Result "0-1"]
[ECO "C05"]
[WhiteElo "1053"]
[BlackElo "1618"]
[PlyCount "66"]
[EventDate "2017.03.24"]
[EventType "swiss (blitz)"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Ngf3 c5 6. c4 cxd4 7. Nxd4 Nxe5 8. cxd5 Qxd5 9. Bb5+ Bd7 10. Qa4 Qxg2 11. Bxd7+ Nbxd7 12. Rf1 Nd3+ 13. Ke2 Nf4+ 14. Kd1 Qxh2 15. Nb5 Nd3 16. Qc4 N3c5 17. Nf3 Qh5 18. Qf4 Rd8 19. Nc7+ Ke7 20. Bd2 g6 21. Qg5+ Qxg5 22. Bxg5+ f6 23. Bd2 a6 24. Nd4 Kd6 25. Ncxe6 Nxe6 26. Nxe6 Kxe6 27. Re1+ Kf7 28. Rc1 Be7 29. Rc7 Rhe8 30. Rxb7 Ne5 31. Re3 Nc4 32. Rexe7+ Rxe7 33. Kc1 Rxb7 0-1

[Event "Paulista-ch"]
[Site "Sao Paulo"]
[Date "2016.11.??"]
[Round "2"]
[White "Auriemo, Danielle Ferreira"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "1646"]
[PlyCount "73"]
[EventDate "2016.11.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. d3 g6 5. Be2 Bg7 6. 0-0 0-0 7. h3 Nc6 8. Be3 d5 9. exd5 Qxd5 10. Nbd2 Bf5 11. Nb3 Nd7 12. Nh4 Rad8 13. Nxf5 Qxf5 14. Bg4 Qd5 15. Bf3 Qd6 16. Qe2 Nde5 17. Bxc5 Qxd3 18. Qxd3 Nxd3 19. Bxc6 bxc6 20. Bxe7 Nxb2 21. Bxf8 Kxf8 22. Rac1 Rd3 23. Rc2 Bxc3 24. Nc5 Rd1 25. Rxd1 Nxd1 26. Rc1 Nb2 27. Rxc3 Ke7 28. Rb3 Kd6 29. Ne4+ Kc7 30. Rxb2 a5 31. Kf1 f5 32. Ng5 h6 33. Nf7 h5 34. Rc2 Kb6 35. Ne5 c5 36. Nxg6 c4 37. Rxc4 1-0

[Event "Paulista-ch"]
[Site "Sao Paulo"]
[Date "2016.11.??"]
[Round "5"]
[White "Barbosa, Victor Moreira"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "B78"]
[PlyCount "75"]
[EventDate "2016.11.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f3 Bg7 7. Be3 0-0 8. Qd2 Nc6 9. Bc4 Bd7 10. 0-0-0 Rc8 11. Bb3 Ne5 12. h4 h5 13. Bh6 Nc4 14. Bxc4 Rxc4 15. Bxg7 Kxg7 16. Kb1 b5 17. Qe2 a5 18. Ndxb5 Bxb5 19. Nxb5 Qc8 20. Nd4 Qa6 21. g4 e5 22. g5 Nd7 23. Nb3 a4 24. Nd2 Rc6 25. Qe3 Rfc8 26. f4 Rxc2 27. fxe5 Nxe5 28. Nf3 Nc4 29. Qd4+ Kg8 30. Kxc2 Nxb2+ 31. Kd2 Qa5+ 32. Ke2 Rc2+ 33. Rd2 Qb5+ 34. Ke1 Rxd2 35. Nxd2 Nd3+ 36. Kd1 Qb1+ 37. Nxb1 Nb2+ 38. Qxb2 1-0

[Event "Paulista-ch"]
[Site "Sao Paulo"]
[Date "2016.11.??"]
[Round "3"]
[White "Katsuyama, Eric Shih"]
[Black "Sato, Luiz Henrique Yuzo"]
[Result "0-1"]
[ECO "C42"]
[BlackElo "1489"]
[PlyCount "46"]
[EventDate "2016.11.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Bd3 Nc6 8. 0-0 Bg4 9. b4 Ne5 10. Be4 c6 11. a4 f5 12. h3 fxe4 13. hxg4 exf3 14. gxf3 0-0 15. f4 Ng6 16. f5 Ne5 17. b5 Bg5 18. Ba3 Bf4 19. Qd4 Nf3+ 20. Kg2 Nxd4 21. cxd4 Qg5 22. f3 Rxf5 23. Kf2 Qh4+ 0-1

[Event "Paulista-ch"]
[Site "Sao Paulo"]
[Date "2016.11.??"]
[Round "6"]
[White "Katsuyama, Eric Shih"]
[Black "Teshima, Claudio Yutaka"]
[Result "0-1"]
[ECO "B00"]
[BlackElo "1148"]
[PlyCount "76"]
[EventDate "2016.11.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 b6 2. d4 Bb7 3. Nc3 e6 4. Nf3 Bb4 5. Bd2 Bxc3 6. Bxc3 Bxe4 7. Ng5 Qxg5 8. Bd3 Bxg2 9. Rg1 Qd5 10. Qg4 g6 11. Qxg2 Nf6 12. Bc4 Qxg2 13. Rxg2 d5 14. Bb5+ c6 15. Ba4 0-0 16. Bb4 Re8 17. Bd6 Rc8 18. 0-0-0 b5 19. Bb3 Nbd7 20. Be5 a5 21. a4 Nxe5 22. dxe5 Ne4 23. axb5 Nc5 24. Rg3 Nxb3+ 25. Rxb3 cxb5 26. Rxb5 a4 27. Rg1 a3 28. bxa3 Rxa3 29. f4 Ra2 30. Rg2 d4 31. f5 exf5 32. Rb6 d3 33. e6 fxe6 34. Rxe6 dxc2 35. Rge2 Kg7 36. Re7+ Kh6 37. Rd2 Ra1+ 38. Kb2 c1Q+ 0-1

[Event "Paulista-ch"]
[Site "Sao Paulo"]
[Date "2016.11.??"]
[Round "4"]
[White "Pimentel, Rafael Favarin G"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1941"]
[PlyCount "33"]
[EventDate "2016.11.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. Nc3 Bg7 4. Qd2 d6 5. 0-0-0 0-0 6. Bh6 Nc6 7. h4 Bxh6 8. Qxh6 Ng4 9. Qf4 e5 10. dxe5 Ncxe5 11. Nh3 Be6 12. f3 Nf6 13. g4 c6 14. e4 Qa5 15. Qxf6 Bxa2 16. h5 b5 17. h6 1-0

[Event "Sao Paulo Schutt Cup 10th"]
[Site "Sao Paulo"]
[Date "2016.10.30"]
[Round "6"]
[White "Da Rocha, Luiz C Cosenza Vie"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "E76"]
[WhiteElo "1418"]
[BlackElo "1754"]
[PlyCount "71"]
[EventDate "2016.10.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. f3 d5 4. Nc3 Bg7 5. e4 dxe4 6. fxe4 e5 7. d5 0-0 8. Nf3 Bg4 9. Qb3 b6 10. Qc2 Nbd7 11. Bg5 Bxf3 12. gxf3 Nc5 13. 0-0-0 Qc8 14. Be3 Qa6 15. Kb1 Rad8 16. Be2 c6 17. h4 h5 18. dxc6 Rxd1+ 19. Rxd1 Rc8 20. Nd5 Rxc6 21. Ne7+ Kh7 22. Nxc6 Nfd7 23. Bxc5 bxc5 24. Rxd7 Qxc6 25. Rxf7 Kg8 26. Rxa7 Qf6 27. Qb3 Qxh4 28. Qd1 Kh7 29. a3 g5 30. Ka2 g4 31. Qd7 Qf6 32. fxg4 hxg4 33. Bxg4 Qf8 34. Qxg7+ Qxg7 35. Rxg7+ Kxg7 36. a4 1-0

[Event "Sao Paulo Schutt Cup 10th"]
[Site "Sao Paulo"]
[Date "2016.10.30"]
[Round "5"]
[White "Katsuyama, Eric Shih"]
[Black "Parreira, Teodora Ribeiro"]
[Result "0-1"]
[ECO "E62"]
[WhiteElo "1754"]
[BlackElo "1755"]
[PlyCount "76"]
[EventDate "2016.10.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 g6 3. Nc3 Bg7 4. g3 d6 5. Nf3 0-0 6. Bg2 Bf5 7. 0-0 Nc6 8. Be3 a6 9. Rb1 Bxb1 10. Qxb1 Rb8 11. d5 Ne5 12. Nxe5 dxe5 13. Qd1 Ng4 14. d6 exd6 15. Ba7 Ra8 16. Be3 Nxe3 17. fxe3 Rb8 18. Ne4 b5 19. c5 dxc5 20. Nxc5 Qxd1 21. Rxd1 Rfd8 22. Rd7 Rxd7 23. Nxd7 Rd8 24. Bc6 e4 25. h4 Bxb2 26. g4 Kg7 27. h5 gxh5 28. gxh5 Kh6 29. Nf6 Bxf6 30. Bxe4 Rd2 31. Bf3 Rxa2 32. e4 Rb2 33. Bg4 a5 34. Bd7 Kxh5 35. Kh2 a4 36. Kg3 a3 37. Kf4 a2 38. Ke3 a1Q 0-1

[Event "Sao Paulo Schutt Cup 10th"]
[Site "Sao Paulo"]
[Date "2016.10.29"]
[Round "4"]
[White "Freire, Leandro da Costa"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "1306"]
[BlackElo "1754"]
[PlyCount "77"]
[EventDate "2016.10.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. Nf3 e6 2. d4 d5 3. e3 Nf6 4. Bd3 c5 5. c3 cxd4 6. cxd4 Nc6 7. a3 Bd6 8. 0-0 0-0 9. Nbd2 Qc7 10. e4 Ng4 11. e5 Be7 12. h3 Nh6 13. Nb3 f6 14. Bxh6 gxh6 15. Re1 fxe5 16. dxe5 Qb6 17. Nfd4 Nxd4 18. Qg4+ Bg5 19. Nxd4 Qxb2 20. Nf3 Kh8 21. h4 Rg8 22. hxg5 hxg5 23. Nxg5 Qd2 24. Qh5 Qxd3 25. Re4 Rg7 26. Qe8+ Rg8 27. Nf7+ Kg7 28. Rg4+ Qg6 29. Rxg6+ hxg6 30. Qe7 Rf8 31. Ng5+ Rf7 32. Qxf7+ Kh6 33. Qf4 Bd7 34. Qh4+ Kg7 35. Qh7+ Kf8 36. Qh8+ Ke7 37. Qxa8 Be8 38. Qxb7+ Bd7 39. Rc1 1-0

[Event "Sao Paulo Schutt Cup 10th"]
[Site "Sao Paulo"]
[Date "2016.10.29"]
[Round "3"]
[White "Katsuyama, Eric Shih"]
[Black "Ferreira, Renato Luis Bueloni"]
[Result "1/2-1/2"]
[ECO "B34"]
[WhiteElo "1754"]
[BlackElo "1376"]
[PlyCount "107"]
[EventDate "2016.10.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. f3 0-0 8. Qd2 a6 9. 0-0-0 Qc7 10. h4 b5 11. h5 Nxh5 12. g4 Nf6 13. Nxc6 dxc6 14. Bh6 b4 15. Na4 Qa5 16. b3 Rb8 17. Bxg7 Kxg7 18. Qh6+ Kg8 19. g5 Nh5 20. Bd3 Qe5 21. Rdg1 Qa1+ 22. Kd2 Qg7 23. Bc4 Qxh6 24. gxh6 Rd8+ 25. Kc1 Nf4 26. Rd1 Rxd1+ 27. Rxd1 Be6 28. Bxa6 f6 29. Nc5 Kf7 30. Nxe6 Nxe6 31. Bc4 Ra8 32. Bxe6+ Kxe6 33. Kb2 Ke5 34. Rd7 Ke6 35. Rb7 c5 36. c3 Rd8 37. cxb4 cxb4 38. Rxb4 Rd2+ 39. Kc3 Rxa2 40. f4 Rh2 41. Rb6+ Kf7 42. f5 Rxh6 43. b4 Rh3+ 44. Kc4 g5 45. b5 g4 46. Rc6 g3 47. Kb4 Rh4 48. Rc1 Rxe4+ 49. Ka5 Re5 50. Ka6 g2 51. b6 Rxf5 52. b7 Rf1 53. b8Q g1Q 54. Rc8 1/2-1/2

[Event "Sao Paulo Schutt Cup 10th"]
[Site "Sao Paulo"]
[Date "2016.10.28"]
[Round "2"]
[White "Barros, Roberto Viana Do Re"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "1492"]
[BlackElo "1754"]
[PlyCount "47"]
[EventDate "2016.10.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Bd7 9. 0-0-0 Nc6 10. h4 h5 11. Nxc6 Bxc6 12. g4 hxg4 13. h5 Nxh5 14. Bh6 Qa5 15. Bxg7 Kxg7 16. fxg4 Bxe4 17. Rh3 Bf3 18. Rxf3 Rfc8 19. Kb1 Kf8 20. gxh5 Qxh5 21. Rh3 Qe5 22. Bb5 Qg7 23. Rdh1 e5 24. Qxd6+ 1-0

[Event "Sao Paulo Schutt Cup 10th"]
[Site "Sao Paulo"]
[Date "2016.10.28"]
[Round "1"]
[White "Katsuyama, Eric Shih"]
[Black "Borger, Daniel"]
[Result "0-1"]
[ECO "C85"]
[WhiteElo "1754"]
[BlackElo "1652"]
[PlyCount "84"]
[EventDate "2016.10.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 a6 5. Ba4 Be7 6. Bxc6 dxc6 7. Qe1 Qd6 8. d4 Nd7 9. Be3 0-0 10. Nc3 c5 11. dxe5 Nxe5 12. Nxe5 Qxe5 13. Rd1 Be6 14. Nd5 Bd6 15. Bf4 Qxb2 16. Bxd6 cxd6 17. Nc7 Rad8 18. Nxe6 fxe6 19. Rb1 Qxc2 20. Rxb7 Qa4 21. Qc3 e5 22. Qg3 Rf7 23. Rfb1 Qxe4 24. Qb3 Qf4 25. Rxf7 Qxf7 26. Qxf7+ Kxf7 27. Rb7+ Kf6 28. Ra7 e4 29. Rxa6 Ke5 30. a4 Rb8 31. g3 Rb2 32. f4+ exf3 33. Kf1 Rxh2 34. Ra7 g6 35. Ke1 Kd4 36. Rf7 c4 37. Rxf3 c3 38. Rf2 Rxf2 39. Kxf2 c2 40. a5 c1Q 41. a6 Qa1 42. a7 Qxa7 0-1

[Event "Sao Paulo Karman Cup 9th"]
[Site "Sao Paulo"]
[Date "2016.08.07"]
[Round "6"]
[White "Katsuyama, Eric Shih"]
[Black "Barbosa, Victor Moreira"]
[Result "1-0"]
[ECO "D35"]
[BlackElo "1624"]
[PlyCount "41"]
[EventDate "2016.08.05"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 174 Extra"]
[Source "ChessBase"]
[SourceDate "2016.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. cxd5 exd5 4. Nc3 Nf6 5. Bg5 Be7 6. e3 0-0 7. Qc2 Be6 8. Bd3 g6 9. Nge2 Nc6 10. a3 a5 11. 0-0 Qd6 12. f4 Rfe8 13. e4 dxe4 14. Bxe4 Nxe4 15. Nxe4 Qd7 16. Bxe7 Rxe7 17. Nf6+ Kh8 18. Nxd7 Rxd7 19. Qd2 b5 20. a4 b4 21. Qe3 1-0

[Event "Sao Paulo Karman Cup 9th"]
[Site "Sao Paulo"]
[Date "2016.08.07"]
[Round "5"]
[White "Pereira, Victor Tramonte"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "19"]
[EventDate "2016.08.05"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 174 Extra"]
[Source "ChessBase"]
[SourceDate "2016.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 4. h3 Nf6 5. Ng5 Be6 6. Nxe6 fxe6 7. Bxe6 Nxe4 8. Qh5+ g6 9. Qf3 Nd4 10. Qf7# 1-0

[Event "Sao Paulo Karman Cup 9th"]
[Site "Sao Paulo"]
[Date "2016.08.06"]
[Round "3"]
[White "Katsuyama, Eric Shih"]
[Black "Ferreira, Renato Luis Bueloni"]
[Result "0-1"]
[ECO "A52"]
[BlackElo "1390"]
[PlyCount "80"]
[EventDate "2016.08.05"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 174 Extra"]
[Source "ChessBase"]
[SourceDate "2016.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Nc6 5. Bg5 Be7 6. Bf4 Bb4+ 7. Nbd2 Qe7 8. Qa4 Ngxe5 9. Nxe5 Nxe5 10. Bxe5 Bxd2+ 11. Kxd2 Qxe5 12. Rd1 0-0 13. Rb1 Qf4+ 14. Ke1 d6 15. e3 Qf5 16. Qd1 Qa5+ 17. Qd2 Qxa2 18. Bd3 Qa6 19. Qc2 g6 20. c5 Qa5+ 21. Qc3 Qxc3+ 22. bxc3 dxc5 23. Rb5 b6 24. Be4 Rb8 25. g4 Bxg4 26. Rg1 Be6 27. f4 f5 28. Bd3 Rbd8 29. Ke2 Kg7 30. e4 a5 31. h4 fxe4 32. Bxe4 Bc4+ 33. Ke3 Bxb5 34. f5 Be8 35. h5 Rf6 36. fxg6 hxg6 37. hxg6 Bxg6 38. Bxg6 Rxg6 39. Rxg6+ Kxg6 40. c4 a4 0-1

[Event "Sao Paulo Karman Cup 9th"]
[Site "Sao Paulo"]
[Date "2016.08.06"]
[Round "4"]
[White "Katsuyama, Eric Shih"]
[Black "Maranhao, Helena Van Kampen D"]
[Result "0-1"]
[ECO "E61"]
[BlackElo "1829"]
[PlyCount "92"]
[EventDate "2016.08.05"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 174 Extra"]
[Source "ChessBase"]
[SourceDate "2016.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Bg5 d6 5. e3 0-0 6. Bd3 e5 7. Qc2 Qe8 8. 0-0-0 Nc6 9. Nf3 Bg4 10. h4 exd4 11. Nd5 Nxd5 12. h5 Ncb4 13. Qb3 Nxd3+ 14. Rxd3 Nb6 15. exd4 c5 16. h6 Bxd4 17. Nxd4 cxd4 18. Rxd4 Qe6 19. Qc3 Bf5 20. Rxd6 Qxc4 21. Rhd1 Qxc3+ 22. bxc3 Rac8 23. Kb2 Nc4+ 24. Ka1 Nxd6 25. Be7 Rfe8 26. Bxd6 Rxc3 27. f4 Bg4 28. Rf1 Rd3 29. Be5 Red8 30. Bg7 Rd1+ 31. Rxd1 Rxd1+ 32. Kb2 Rd2+ 33. Ka3 Rxg2 34. Kb4 Rxa2 35. Kc5 Ra6 36. Kd4 Rc6 37. Ke4 b5 38. Kd4 f5 39. Kd5 Bf3+ 40. Kd4 a5 41. Ke3 Bg4 42. Kf2 a4 43. Ke3 b4 44. Kd2 b3 45. Bb2 Rc2+ 46. Ke3 Rxb2 0-1

[Event "Sao Paulo Karman Cup 9th"]
[Site "Sao Paulo"]
[Date "2016.08.05"]
[Round "1"]
[White "Itagyba, Renan Fortes"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "E65"]
[WhiteElo "1671"]
[PlyCount "77"]
[EventDate "2016.08.05"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 174 Extra"]
[Source "ChessBase"]
[SourceDate "2016.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.10"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 d6 3. g3 g6 4. Bg2 Nf6 5. Nf3 Bg7 6. 0-0 0-0 7. d4 cxd4 8. Nxd4 Bd7 9. Bxb7 Nc6 10. Nxc6 Qb6 11. Nxe7+ Kh8 12. Bxa8 Rxa8 13. Ned5 Qd8 14. Bg5 h6 15. Bxf6 Bxf6 16. Nxf6 Qxf6 17. Qd5 Rb8 18. Rab1 Qf5 19. Qxf5 Bxf5 20. Rbd1 Bh3 21. Rfe1 Re8 22. Rxd6 Re6 23. Rxe6 fxe6 24. Rd1 e5 25. c5 Be6 26. c6 Kg8 27. c7 a5 28. Rd8+ Kf7 29. c8Q Bxc8 30. Rxc8 g5 31. Rc6 Kg7 32. a3 h5 33. b4 axb4 34. axb4 h4 35. b5 hxg3 36. hxg3 g4 37. b6 e4 38. b7 e3 39. b8Q 1-0

[Event "Sao Bernardo do Campo op"]
[Site "Sao Bernardo do Campo"]
[Date "2016.07.24"]
[Round "6"]
[White "Carneiro, Thomas Sobral"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "D35"]
[PlyCount "55"]
[EventDate "2016.07.22"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Nf3 g6 6. Bg5 Bg7 7. e3 Nc6 8. Be2 0-0 9. 0-0 Bf5 10. Qb3 Na5 11. Qb5 Nc6 12. Qxb7 Qd6 13. Bb5 Bg4 14. Qxc6 Bxf3 15. gxf3 a6 16. Qxd6 cxd6 17. Bc6 Rac8 18. Bxd5 Nxd5 19. Nxd5 Rc2 20. Nf6+ Bxf6 21. Bxf6 Rxb2 22. Be7 Re8 23. Bxd6 Rb6 24. Bc7 Rc6 25. Rfc1 Rxc1+ 26. Rxc1 Rc8 27. d5 Rxc7 28. Rxc7 1-0

[Event "Sao Bernardo do Campo op"]
[Site "Sao Bernardo do Campo"]
[Date "2016.07.24"]
[Round "5"]
[White "Katsuyama, Eric Shih"]
[Black "Radaelli, Lucas Falcao"]
[Result "0-1"]
[ECO "A84"]
[PlyCount "68"]
[EventDate "2016.07.22"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. Nf3 e6 4. e3 d5 5. cxd5 exd5 6. g3 Bd6 7. Bg2 0-0 8. 0-0 Be6 9. Nc3 Qe8 10. a4 Nbd7 11. b3 c6 12. Ba3 Bxa3 13. Rxa3 Ne4 14. Qc1 Qh5 15. Nxe4 fxe4 16. Ne5 Rf6 17. h3 Bxh3 18. Qd1 Qf5 19. g4 Bxg4 20. Qxg4 Nxe5 21. Qxf5 Nf3+ 22. Bxf3 Rxf5 23. Bg4 Rg5 24. Kh1 Rxg4 25. Rg1 Rxg1+ 26. Kxg1 Rf8 27. Ra1 h5 28. Rc1 g5 29. Kg2 Kg7 30. Rh1 Kg6 31. a5 a6 32. f4 exf3+ 33. Kh2 h4 34. Rf1 g4 0-1

[Event "Sao Bernardo do Campo op"]
[Site "Sao Bernardo do Campo"]
[Date "2016.07.23"]
[Round "4"]
[White "Da Rosa, Henrique Jaze Simoe"]
[Black "Katsuyama, Eric Shih"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "1715"]
[PlyCount "51"]
[EventDate "2016.07.22"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. b3 c5 2. Bb2 d6 3. e3 Nf6 4. Nf3 g6 5. d4 cxd4 6. Nxd4 e5 7. Ne2 Bg7 8. g3 0-0 9. Bg2 Nc6 10. 0-0 Bf5 11. Na3 Rc8 12. Nb5 Nb4 13. Na3 Nxc2 14. Nxc2 Bxc2 15. Qd2 Bxb3 16. axb3 Ne4 17. Bxe4 f5 18. Bxb7 Rc7 19. Rxa7 Qb8 20. Bd5+ Rcf7 21. Bxf7+ Rxf7 22. Rxf7 Kxf7 23. Qd5+ Ke7 24. f4 exf4 25. Bxg7 Qc8 26. Rxf4 1-0

[Event "Sao Bernardo do Campo op"]
[Site "Sao Bernardo do Campo"]
[Date "2016.07.23"]
[Round "3"]
[White "Katsuyama, Eric Shih"]
[Black "Costa, Iaggo Bernini"]
[Result "0-1"]
[ECO "A40"]
[BlackElo "1414"]
[PlyCount "78"]
[EventDate "2016.07.22"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. e3 d6 4. Nf3 Bg7 5. g3 Bf5 6. Bg2 Nbd7 7. 0-0 e5 8. c5 0-0 9. Nc3 exd4 10. Nxd4 Nxc5 11. Nxf5 gxf5 12. b4 Nce4 13. Bb2 Nxc3 14. Bxc3 Rb8 15. Bh3 Ng4 16. Bxg7 Kxg7 17. Bxg4 fxg4 18. Qxg4+ Kh8 19. Qd4+ Kg8 20. b5 b6 21. Qg4+ Kh8 22. Rad1 Rg8 23. Qd4+ Rg7 24. f4 c6 25. bxc6 Qc7 26. f5 Qxc6 27. f6 Rg6 28. Rc1 Qb5 29. Rb1 Qe2 30. Rf2 Qh5 31. Kf1 Rxg3 32. Rg2 Qf3+ 33. Rf2 Qh1+ 34. Ke2 Rxe3+ 35. Qxe3 Qxb1 36. Qa3 Re8+ 37. Kf3 Qe4+ 38. Kg3 Rg8+ 39. Kh3 Qg4# 0-1

