[Event "Titled Tuesday intern op 08th Aug Early"]
[Site "Chess.com INT"]
[Date "2023.08.08"]
[Round "3"]
[White "Kanyamarala, Trisha"]
[Black "Pratama, Constantius Leonard"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2344"]
[BlackElo "2070"]
[PlyCount "101"]
[EventDate "2023.08.08"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 e5 7. d3 Re8 8. Nbd2 Nbd7 9. c4 c6 10. Rc1 b6 11. Ng5 Bb7 12. Nge4 Nxe4 13. Nxe4 Nf6 14. Ba3 Nxe4 15. Bxe4 d5 16. cxd5 cxd5 17. Bg2 Rc8 18. Qd2 Qd7 19. h4 Rxc1 20. Rxc1 Rc8 21. Kh2 f5 22. h5 Kf7 23. Rxc8 Qxc8 24. Qb4 Qd7 25. Bb2 Qe7 26. Qb5 e4 27. Bxg7 Kxg7 28. dxe4 dxe4 29. Qc4 Kh6 30. hxg6 hxg6 31. Qc1+ Kg7 32. Qc3+ Qf6 33. Qc7+ Qf7 34. Qe5+ Kh7 35. Qb8 Bd5 36. e3 Qb7 37. Qe5 a5 38. Bf1 Qd7 39. Be2 Bf7 40. Bb5 Qd2 41. Kg1 Qe1+ 42. Kg2 Qd2 43. Qe7 Kg8 44. Be8 Bxe8 45. Qxe8+ Kg7 46. Qe7+ Kh6 47. Qf8+ Kh7 48. Qf7+ Kh6 49. Qf8+ Kh7 50. Qf7+ Kh6 51. Qf8+ 1/2-1/2

[Event "Titled Tuesday intern op 08th Aug Early"]
[Site "Chess.com INT"]
[Date "2023.08.08"]
[Round "1"]
[White "Lisjak, Zlatko"]
[Black "Pratama, Constantius Leonard"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2213"]
[BlackElo "2070"]
[PlyCount "75"]
[EventDate "2023.08.08"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 e6 3. Bf4 d5 4. e3 Bd6 5. Qd2 0-0 6. 0-0-0 Bxf4 7. exf4 b6 8. Nf3 Ba6 9. Ne5 Nfd7 10. g4 Nxe5 11. fxe5 Bxf1 12. Rdxf1 f6 13. f4 fxe5 14. dxe5 Nd7 15. h4 Qe7 16. h5 c6 17. h6 g6 18. a3 b5 19. Ne2 c5 20. Ng3 a5 21. f5 Nxe5 22. Qf4 exf5 23. gxf5 Qf6 24. Qd2 d4 25. Ne4 Qc6 26. Qf4 Rae8 27. Qh4 d3 28. fxg6 Nxg6 29. Nf6+ Rxf6 30. Qxf6 Qxf6 31. Rxf6 c4 32. cxd3 cxd3 33. Kd2 Re2+ 34. Kxd3 Rxb2 35. Re1 Rb3+ 36. Kc2 Rf3 37. Re8+ Nf8 38. Rexf8# 1-0

[Event "Titled Tuesday intern op 08th Aug Early"]
[Site "Chess.com INT"]
[Date "2023.08.08"]
[Round "4"]
[White "Pratama, Constantius Leonard"]
[Black "Lacasa Diaz, Jose Antonio"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2070"]
[BlackElo "2367"]
[PlyCount "92"]
[EventDate "2023.08.08"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. Bc4 Nc6 4. f4 Nge7 5. Bb3 d5 6. d3 b5 7. exd5 exd5 8. Nf3 c4 9. dxc4 dxc4 10. Qxd8+ Kxd8 11. Nxb5 cxb3 12. Ng5 Be6 13. axb3 h6 14. Nxe6+ fxe6 15. Be3 Nd5 16. Bxa7 Nxa7 17. Rxa7 Rxa7 18. Nxa7 Nxf4 19. g3 Nd5 20. Kd2 Bc5 21. Nc6+ Kc7 22. Ne5 Rf8 23. Nd3 Bd6 24. Ra1 Kb7 25. c3 Nf6 26. b4 Ng4 27. h3 Nf2 28. Re1 Nxd3 29. Kxd3 Rf3+ 30. Kd4 e5+ 31. Kd5 Bc7 32. c4 Rd3+ 33. Ke6 Rxg3 34. b5 Kb6 35. Ra1 Kc5 36. Ra6 Rg6+ 37. Kd7 Rxa6 38. bxa6 Bb6 39. Kc8 e4 40. Kb7 e3 41. b4+ Kxc4 42. Kxb6 e2 43. a7 e1Q 44. a8Q Qxb4+ 45. Kc7 Qe7+ 46. Kb6 Qc5+ 0-1

[Event "Titled Tuesday intern op 08th Aug Early"]
[Site "Chess.com INT"]
[Date "2023.08.08"]
[Round "2"]
[White "Pratama, Constantius Leonard"]
[Black "Nithyalakshmi, Sivanesan"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2070"]
[BlackElo "1889"]
[PlyCount "59"]
[EventDate "2023.08.08"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 Bd7 4. Nf3 a6 5. c3 Bb5 6. Be2 Be7 7. 0-0 Bxe2 8. Qxe2 Nc6 9. Na3 g5 10. Nc2 h5 11. Nfe1 Nh6 12. f4 g4 13. Ne3 Qd7 14. f5 Bg5 15. f6 Bxe3+ 16. Bxe3 Nf5 17. Nd3 0-0-0 18. Nc5 Qe8 19. b4 Nb8 20. a4 Rg8 21. Rfb1 h4 22. b5 a5 23. b6 c6 24. Nb3 Qf8 25. Nxa5 c5 26. Nb3 c4 27. Nc5 Nc6 28. a5 Nxe3 29. Qxe3 g3 30. h3 1-0

[Event "Titled Tuesday intern op 27th Jun Early"]
[Site "Chess.com INT"]
[Date "2023.06.27"]
[Round "7"]
[White "Gardezi, Arsal"]
[Black "Pratama, Constantius Leonard"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2093"]
[BlackElo "2070"]
[PlyCount "20"]
[EventDate "2023.06.27"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 d5 4. exd5 Qxd5 5. d4 cxd4 6. cxd4 e5 7. Nc3 Bb4 8. dxe5 Qxd1+ 9. Kxd1 Bg4 10. Kc2 Bxf3 1/2-1/2

[Event "Titled Tuesday intern op 27th Jun Early"]
[Site "Chess.com INT"]
[Date "2023.06.27"]
[Round "6"]
[White "Pratama, Constantius Leonard"]
[Black "Tarnowska, Aleksandra"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2070"]
[BlackElo "1835"]
[PlyCount "53"]
[EventDate "2023.06.27"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 g6 3. f4 Bg7 4. Nf3 d6 5. Bc4 Nf6 6. d3 Nc6 7. 0-0 Bg4 8. h3 Bxf3 9. Qxf3 Nd4 10. Qf2 0-0 11. Be3 Qb6 12. Bb3 Nxb3 13. axb3 a6 14. Kh1 Qc6 15. Rae1 b5 16. f5 Rac8 17. fxg6 fxg6 18. Qh4 Qd7 19. Bh6 b4 20. Bxg7 Kxg7 21. Nd5 Nxd5 22. exd5 Rf7 23. Rxf7+ Kxf7 24. Qxh7+ Kf6 25. Re6+ Kg5 26. Qxg6+ Kf4 27. Qg4# 1-0

[Event "FIDE World Uni Rapid-F 1st"]
[Site "Tornelo INT"]
[Date "2021.03.21"]
[Round "7"]
[White "Kosmidis, Nikolaos"]
[Black "Pratama, Constantius Leonard"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1742"]
[BlackElo "2096"]
[PlyCount "118"]
[EventDate "2021.03.20"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "NET"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 c5 4. c3 Nc6 5. Nf3 Qb6 6. Qc1 Bf5 7. Nbd2 e6 8. Be2 Be7 9. 0-0 h6 10. Bg3 0-0 11. Ne5 Nxe5 12. Bxe5 Nd7 13. Nf3 Rfc8 14. Qd2 c4 15. Rfe1 a5 16. h3 a4 17. a3 Bd6 18. Bxd6 Qxd6 19. Nh4 Bh7 20. Bf3 g5 21. e4 gxh4 22. Qxh6 dxe4 23. Bxe4 Bxe4 24. Rxe4 Nf8 25. Rxh4 Ng6 26. Rg4 Qf8 27. Qh5 Qg7 28. Re1 Qf6 29. Qh6 Ra5 30. h4 Qg7 31. Qe3 Kh7 32. Rg3 Rc6 33. Qf3 Rf5 34. Qg4 Rf4 35. Qh5+ Qh6 36. Qb5 Rxh4 37. Kf1 Rh1+ 38. Ke2 Qh5+ 39. Qxh5+ Rxh5 40. Rf3 Kg7 41. Kd2 Rh2 42. g3 Ne7 43. Rf4 Nd5 44. Rg4+ Kf8 45. Re2 f5 46. Rg6 Kf7 47. Rg5 Rc8 48. f4 Nf6 49. Rxh2 Ne4+ 50. Ke3 Nxg5 51. fxg5 Rc6 52. Kf4 Rb6 53. g4 fxg4 54. Kxg4 Kg6 55. Kf4 Rb5 56. Rg2 Rf5+ 57. Ke4 Rb5 58. Ke3 Rf5 59. Ke4 Rb5 1/2-1/2

[Event "FIDE World Uni Rapid-F 1st"]
[Site "Tornelo INT"]
[Date "2021.03.21"]
[Round "10"]
[White "Litner, Igor"]
[Black "Pratama, Constantius Leonard"]
[Result "1/2-1/2"]
[ECO "D03"]
[WhiteElo "1980"]
[BlackElo "2096"]
[PlyCount "66"]
[EventDate "2021.03.20"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "NET"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bg5 e6 4. e3 h6 5. Bxf6 Qxf6 6. Bd3 c5 7. c3 Nc6 8. 0-0 cxd4 9. exd4 Bd6 10. Nbd2 0-0 11. Qe2 Bf4 12. Rae1 b6 13. g3 Bxd2 14. Nxd2 a5 15. f4 Nb8 16. Nf3 Ba6 17. Ne5 Bxd3 18. Qxd3 Ra7 19. f5 exf5 20. Rxf5 Qd6 21. Qb5 Re7 22. Ref1 Qe6 23. b4 axb4 24. cxb4 Rc7 25. a4 f6 26. a5 bxa5 27. bxa5 Rd8 28. Ng4 h5 29. Qb6 Qxb6 30. axb6 Rb7 31. Rxh5 Rxb6 32. Ne3 Rb4 33. Rf4 Nc6 1/2-1/2

[Event "FIDE World Uni Rapid-F 1st"]
[Site "Tornelo INT"]
[Date "2021.03.21"]
[Round "12"]
[White "Mansour, Halim"]
[Black "Pratama, Constantius Leonard"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1385"]
[BlackElo "2096"]
[PlyCount "76"]
[EventDate "2021.03.20"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "NET"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Bg5 12. Nc2 0-0 13. a4 Rb8 14. axb5 axb5 15. h4 Bh6 16. g4 Bf4 17. Qf3 Be6 18. Nxf4 exf4 19. Qxf4 Ne5 20. Be2 Bc4 21. Nd4 Bxe2 22. Kxe2 b4 23. c4 Qb6 24. Nf5 f6 25. b3 g6 26. Ne7+ Kg7 27. Nd5 Qd4 28. Rhd1 Qb2+ 29. Kf1 Qxb3 30. Ra7+ Kh8 31. Rda1 Qh3+ 32. Ke2 Qd3+ 33. Ke1 Nf3+ 34. Qxf3 Qxf3 35. Rxh7+ Kxh7 36. Ra7+ Kh8 37. Ne7 Qxe4+ 38. Kf1 Ra8 0-1

[Event "FIDE World Uni Rapid-F 1st"]
[Site "Tornelo INT"]
[Date "2021.03.21"]
[Round "8"]
[White "Pratama, Constantius Leonard"]
[Black "Fierro Jaquez, Carlos Jahi"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2096"]
[BlackElo "1833"]
[PlyCount "111"]
[EventDate "2021.03.20"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "NET"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. Nf3 Nc6 4. Bb5 Nd4 5. Bc4 a6 6. a4 d6 7. d3 Nf6 8. Nxd4 cxd4 9. Ne2 e5 10. Bg5 Be7 11. 0-0 Bd7 12. h3 h6 13. Bxf6 Bxf6 14. f4 b5 15. fxe5 dxe5 16. axb5 axb5 17. Bd5 Rc8 18. Ng3 0-0 19. Nh5 Bg5 20. Ra7 Rc7 21. Rxc7 Qxc7 22. Bb3 Qd8 23. Qf3 Qe7 24. Ra1 Be6 25. Bxe6 Qxe6 26. b3 Rc8 27. Ra2 g6 28. Ng3 Kg7 29. Qg4 Qxg4 30. hxg4 Be3+ 31. Kf1 Kf6 32. Ke2 Kg5 33. Nf1 Kxg4 34. Nxe3+ dxe3 35. Kxe3 Kg3 36. c4 f5 37. exf5 gxf5 38. Ra6 Kxg2 39. Rg6+ Kf1 40. Rxh6 bxc4 41. bxc4 Rd8 42. Rf6 f4+ 43. Ke4 Ke2 44. Kxe5 f3 45. d4 Kd3 46. c5 Kc4 47. Rxf3 Rxd4 48. c6 Rd5+ 49. Ke6 Rc5 50. Kd7 Rd5+ 51. Kc7 Rb5 52. Rf4+ Kd3 53. Kd7 Ke3 54. Rh4 Rd5+ 55. Kc8 Kf3 56. c7 1-0

[Event "FIDE World Uni Rapid-F 1st"]
[Site "Tornelo INT"]
[Date "2021.03.21"]
[Round "9"]
[White "Pratama, Constantius Leonard"]
[Black "Koukas, Anastasios"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2096"]
[BlackElo "1933"]
[PlyCount "91"]
[EventDate "2021.03.20"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "NET"]
[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. Bf4 Nc6 8. Qd2 Be6 9. Nd4 Nxd4 10. cxd4 d5 11. Bd3 Bd6 12. 0-0-0 Qd7 13. Bxd6 Qxd6 14. f4 0-0-0 15. f5 Bd7 16. g4 f6 17. h4 h6 18. g5 hxg5 19. hxg5 fxg5 20. Qxg5 Qf6 21. Qxf6 gxf6 22. Rdg1 c6 23. Rxh8 Rxh8 24. Rg6 Rf8 25. Rg7 Kc7 26. Kd2 Kd6 27. Ke3 b6 28. Kf4 c5 29. c3 a5 30. b3 Bc6 31. Kg4 b5 32. a3 b4 33. axb4 axb4 34. cxb4 cxb4 35. Rg6 Ke7 36. Rg7+ Rf7 37. Rxf7+ Kxf7 38. Kh5 Kg7 39. Be2 Be8+ 40. Kg4 Bd7 41. Bf3 Bc6 42. Kh5 Bb7 43. Bg2 Bc6 44. Bf3 Bb7 45. Bg2 Bc6 46. Bf3 1/2-1/2

[Event "FIDE World Uni Rapid-F 1st"]
[Site "Tornelo INT"]
[Date "2021.03.21"]
[Round "11"]
[White "Pratama, Constantius Leonard"]
[Black "Mahmudzada, Rashad"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2096"]
[PlyCount "118"]
[EventDate "2021.03.20"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "NET"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. Nf3 d6 4. Bc4 Nf6 5. d3 g6 6. 0-0 Bg7 7. Bg5 0-0 8. Qd2 Nc6 9. a3 a6 10. Rfe1 b5 11. Ba2 Ne5 12. Nxe5 dxe5 13. h3 Qc7 14. Rf1 Nh5 15. Ne2 f5 16. exf5 gxf5 17. Ng3 Nxg3 18. fxg3 Kh8 19. Rae1 Qd6 20. Bh6 Rf7 21. Bxg7+ Rxg7 22. Qe3 Bb7 23. Qxe5 Qxe5 24. Rxe5 Rxg3 25. Rf2 Rag8 26. Ree2 f4 27. Bxe6 f3 28. Re3 Rxg2+ 29. Rxg2 Rxg2+ 30. Kf1 Rxc2 31. Bg4 Rc1+ 32. Re1 Rxe1+ 33. Kxe1 Kg7 34. Kf2 Kf6 35. Bxf3 Bxf3 36. Kxf3 Ke5 37. Ke3 a5 38. Ke2 Kd4 39. Kd2 c4 40. dxc4 Kxc4 41. Kc2 h5 42. b3+ Kd4 43. h4 Ke4 44. a4 b4 45. Kd2 Kf4 46. Kd3 Kg4 47. Kc4 Kxh4 48. Kb5 Kg3 49. Kxa5 h4 50. Kxb4 h3 51. Ka5 h2 52. b4 h1Q 53. b5 Qa8+ 54. Kb4 Kf4 55. a5 Ke5 56. a6 Kd4 57. Ka5 Qd8+ 58. b6 Qd5+ 59. Ka4 Kc4 0-1

[Event "FIDE World Uni Rapid-F 1st"]
[Site "Tornelo INT"]
[Date "2021.03.20"]
[Round "4"]
[White "Pratama, Constantius Leonard"]
[Black "De Silva, Shelani"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2096"]
[BlackElo "1511"]
[PlyCount "43"]
[EventDate "2021.03.20"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "NET"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. Nf3 d5 4. exd5 exd5 5. Bb5+ Nc6 6. d4 cxd4 7. Nxd4 Qd6 8. 0-0 Nf6 9. Bg5 Be7 10. Bxf6 Bxf6 11. Re1+ Be6 12. Nxe6 fxe6 13. Nxd5 0-0 14. Nxf6+ Rxf6 15. Qxd6 Rd8 16. Qc7 Rf7 17. Qg3 Nd4 18. Bc4 Kh8 19. Rad1 Rfd7 20. c3 Nf5 21. Rxd7 Rxd7 22. Qb8+ 1-0

[Event "FIDE World Uni Rapid-F 1st"]
[Site "Tornelo INT"]
[Date "2021.03.20"]
[Round "6"]
[White "Pratama, Constantius Leonard"]
[Black "Janik, Igor"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "2096"]
[BlackElo "2495"]
[PlyCount "116"]
[EventDate "2021.03.20"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "NET"]
[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 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. g3 Nf6 7. Bg2 Be7 8. 0-0 0-0 9. d3 b5 10. exd5 exd5 11. Bf4 Nbd7 12. a3 Re8 13. Rfe1 Nc5 14. Ne2 Ne6 15. Be5 Nd7 16. Bc3 Bf6 17. d4 Nb6 18. Qd3 Na4 19. Rad1 Qb6 20. Kh2 a5 21. b3 Nxc3 22. Qxc3 Nxd4 23. Nxd4 Rxe1 24. Qxe1 Bxd4 25. f4 b4 26. axb4 axb4 27. Qe7 Bf6 28. Qd7 Qc5 29. Re1 g6 30. Re8+ Rxe8 31. Qxe8+ Kg7 32. Qe2 h5 33. h4 Qc3 34. Bf3 Qa1 35. Qd1 Qa7 36. Kg2 Qc5 37. Qd3 Bd8 38. Qe2 Bb6 39. Qe5+ Kh7 40. Kh3 Qf2 41. Qe2 Qg1 42. Qd1 Qc5 43. Qe2 Qc3 44. Qd3 Qxd3 45. cxd3 f5 46. Kg2 Bd4 47. Kf1 Kg7 48. Ke2 Kf6 49. Bg2 Ke7 50. Bf3 Kd6 51. Bg2 Kc5 52. Bf3 Bg1 53. Kf1 Be3 54. Ke2 Kd4 55. Bh1 Bc1 56. Kd1 Bb2 57. Ke2 Kc3 58. Bg2 Kxb3 0-1

[Event "FIDE World Uni Rapid-F 1st"]
[Site "Tornelo INT"]
[Date "2021.03.20"]
[Round "2"]
[White "Pratama, Constantius Leonard"]
[Black "Torres Flores, Marco"]
[Result "1-0"]
[ECO "C64"]
[WhiteElo "2096"]
[BlackElo "1593"]
[PlyCount "61"]
[EventDate "2021.03.20"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "NET"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. 0-0 d6 5. d4 exd4 6. Nxd4 Bd7 7. Nxc6 Bxc6 8. Bxc6+ bxc6 9. Qg4 Qf6 10. Nc3 Nh6 11. Qh3 Ng8 12. Qg3 Ne7 13. Bg5 Qg6 14. Qh4 f6 15. Bd2 0-0 16. Kh1 f5 17. Qxe7 f4 18. f3 Qh5 19. Qe6+ Kh8 20. Qg4 Qh6 21. Ne2 Be3 22. Bxe3 fxe3 23. f4 Qf6 24. c3 Rab8 25. b3 c5 26. Qf3 c4 27. b4 d5 28. e5 Qf5 29. Qxe3 a5 30. a3 axb4 31. axb4 1-0

[Event "FIDE World Uni Rapid-F 1st"]
[Site "Tornelo INT"]
[Date "2021.03.20"]
[Round "5"]
[White "Sales Filho, Jose Gabriel Sampai"]
[Black "Pratama, Constantius Leonard"]
[Result "0-1"]
[ECO "D13"]
[BlackElo "2096"]
[PlyCount "72"]
[EventDate "2021.03.20"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "NET"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 c6 2. Nc3 d5 3. cxd5 cxd5 4. d4 Nf6 5. Nf3 Nc6 6. g3 Bf5 7. a3 h6 8. Bg2 e6 9. 0-0 Be7 10. e3 0-0 11. Nd2 Rc8 12. Qb3 Na5 13. Qa4 a6 14. e4 b5 15. Qd1 dxe4 16. Ndxe4 Nxe4 17. Nxe4 Bf6 18. d5 exd5 19. Qxd5 Bxe4 20. Bxe4 Qxd5 21. Bxd5 Rfd8 22. Rd1 Rxd5 23. Rxd5 Nb3 24. Rb1 Nxc1 25. Rd6 a5 26. Rd5 b4 27. Rxa5 b3 28. Rb5 Rc2 29. a4 Bxb2 30. a5 Bd4 31. R5xb3 Nxb3 32. Rxb3 Bxf2+ 33. Kf1 Bd4 34. Ra3 Rxh2 35. a6 Ba7 36. Rb3 Ra2 0-1

[Event "FIDE World Uni Rapid-F 1st"]
[Site "Tornelo INT"]
[Date "2021.03.20"]
[Round "3"]
[White "Schmakel, Sam A"]
[Black "Pratama, Constantius Leonard"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2435"]
[BlackElo "2096"]
[PlyCount "59"]
[EventDate "2021.03.20"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "NET"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. Bd3 Be6 12. c3 Bg7 13. Nxb5 axb5 14. Bxb5 Bd7 15. exf5 Na7 16. Bxd7+ Kxd7 17. Qa4+ Nc6 18. Qxa8 Qxa8 19. Nb6+ Kc7 20. Nxa8+ Rxa8 21. Ke2 d5 22. Rhd1 Kd6 23. Rd3 e4 24. Rh3 h6 25. a4 Na5 26. b4 Nc4 27. a5 Kc6 28. f6 Bf8 29. Rh5 Rd8 30. Rd1 1-0

[Event "Kuala Lumpur Inter Varsity-ch"]
[Site "Kuala Lumpur"]
[Date "2020.02.11"]
[Round "3"]
[White "Kumaresan, Nhavin"]
[Black "Pratama, Constantius Leonard"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1765"]
[BlackElo "2113"]
[PlyCount "74"]
[EventDate "2020.02.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MAS"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 Nf6 6. Be2 e6 7. 0-0 Be7 8. Be3 cxd4 9. cxd4 0-0 10. Nc3 Qa5 11. a3 Nd5 12. Qc2 Nxc3 13. bxc3 b6 14. c4 Bb7 15. Rfb1 Ba6 16. Rb5 Bxb5 17. cxb5 Nb4 18. Qb3 a6 19. Bd2 axb5 20. Rb1 Qxa3 21. Bxb4 Qxb3 22. Rxb3 Bxb4 23. Rxb4 Ra1+ 24. Bf1 Rc8 25. Rb2 Rcc1 26. Nd2 Rd1 27. g3 g5 28. g4 h5 29. h3 h4 30. Kg2 b4 31. Bc4 Rac1 32. Bd3 Rg1+ 33. Kf3 Rh1 34. Rb3 Rc3 35. Rxc3 bxc3 36. Nb1 Rxh3+ 37. Ke2 Rxd3 0-1

[Event "Kuala Lumpur Inter Varsity-ch"]
[Site "Kuala Lumpur"]
[Date "2020.02.10"]
[Round "1"]
[White "Nagaraj, Jeevvanraj"]
[Black "Pratama, Constantius Leonard"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1549"]
[BlackElo "2113"]
[PlyCount "52"]
[EventDate "2020.02.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MAS"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bc4 e6 6. d3 Nge7 7. 0-0 d5 8. Bb3 0-0 9. Qe1 Nd4 10. e5 Nxb3 11. axb3 Bd7 12. Kh1 Qc7 13. g4 f5 14. h3 d4 15. Ne2 Bc6 16. Neg1 fxg4 17. hxg4 g5 18. Kh2 gxf4 19. Qh4 Ng6 20. Qh5 Nxe5 21. Ng5 h6 22. Nxe6 Qd7 23. Nxf8 Qd5 24. Nf3 Nxf3+ 25. Kh3 Ng5+ 26. Kh4 Qg2 0-1

[Event "Kuala Lumpur Inter Varsity-ch"]
[Site "Kuala Lumpur"]
[Date "2020.02.10"]
[Round "2"]
[White "Pratama, Constantius Leonard"]
[Black "Azhar, Muhd Irfan Haqqim"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2113"]
[BlackElo "1851"]
[PlyCount "110"]
[EventDate "2020.02.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MAS"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 c6 5. Nf3 Nf6 6. Bc4 Bf5 7. Ne5 e6 8. 0-0 Nbd7 9. Bf4 Nxe5 10. Bxe5 Qb4 11. Bb3 Be7 12. a4 Qa5 13. Qd2 0-0 14. Rfd1 Qd8 15. a5 Bg6 16. a6 b5 17. Qf4 Nd5 18. Nxd5 exd5 19. Re1 Rc8 20. Qd2 Qd7 21. c3 f6 22. Bf4 Bd6 23. Bd1 Rce8 24. Bf3 Qc7 25. Bxd6 Qxd6 26. h4 Bf5 27. Re3 Rxe3 28. Qxe3 Bd7 29. Re1 Re8 30. Qxe8+ Bxe8 31. Rxe8+ Kf7 32. Ra8 Qc7 33. Bg4 Qb6 34. Bc8 c5 35. dxc5 Qxc5 36. Bb7 d4 37. cxd4 Qxd4 38. g3 b4 39. b3 h5 40. Kg2 g5 41. hxg5 fxg5 42. Rc8 Qd3 43. Rc5 Kf6 44. Bd5 Qd4 45. Rb5 h4 46. Bc4 h3+ 47. Kxh3 Qxf2 48. Rd5 Qe1 49. Rd6+ Ke7 50. Rd5 Qe6+ 51. Kg2 Qe3 52. Kh3 Qe6+ 53. Kg2 Qe3 54. Kh3 Qe6+ 55. Kg2 Qe3 1/2-1/2

[Event "Asia-ch U20"]
[Site "Surakarta"]
[Date "2019.07.02"]
[Round "1"]
[White "Raghunandan, Kaumandur Srihari"]
[Black "Pratama, Constantius Leonard"]
[Result "1/2-1/2"]
[ECO "D15"]
[WhiteElo "2441"]
[BlackElo "2133"]
[PlyCount "133"]
[EventDate "2019.07.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "INA"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. c5 b6 6. cxb6 Nbd7 7. g3 e6 8. Bg2 Qxb6 9. 0-0 Be7 10. Na4 Qa7 11. Be3 Ng4 12. Bf4 0-0 13. Rc1 Bb7 14. h3 Ngf6 15. Ne1 Rfc8 16. Nd3 a5 17. Ndc5 Ba6 18. Bf3 Bb5 19. Re1 h6 20. Be3 Qb8 21. Qd2 Bxa4 22. Nxa4 Bb4 23. Nc3 Nb6 24. Bf4 Qa7 25. Qd3 a4 26. Rc2 Nc4 27. Rec1 a3 28. b3 Nb2 29. Qe3 Qa6 30. Nb1 Nd7 31. g4 Qb6 32. Bg2 c5 33. Qg3 Qa6 34. Bd6 Rc6 35. dxc5 Rac8 36. g5 hxg5 37. Qxg5 Bxc5 38. Bxc5 Rxc5 39. Rxc5 Nxc5 40. Qe3 Nxb3 41. Rxc8+ Qxc8 42. Qxb3 Qc1+ 43. Kh2 Qxb1 44. Qxa3 Nc4 45. Qb3 Qf5 46. Qb8+ Kh7 47. Qg3 Kg8 48. Qb8+ Kh7 49. Qg3 Kg8 50. a4 Qc2 51. Qb8+ Kh7 52. Qc7 Kg8 53. Qd8+ Kh7 54. Qh4+ Kg8 55. Qd8+ Kh7 56. Qc7 Kg8 57. a5 Qxe2 58. Qd8+ Kh7 59. Qh4+ Kg8 60. Qd8+ Kh7 61. Qh4+ Kg8 62. a6 Qa2 63. Qd8+ Kh7 64. Qh4+ Kg8 65. Qd8+ Kh7 66. Qh4+ Kg8 67. Qd8+ 1/2-1/2

[Event "Jakarta Tunas Jaya I"]
[Site "Jakarta"]
[Date "2018.07.14"]
[Round "9.6"]
[White "Aris, TLS"]
[Black "Pratama, Constantius Leonard"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2119"]
[BlackElo "2112"]
[PlyCount "32"]
[EventDate "2018.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "INA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 c5 4. dxc5 e6 5. c4 Bxc5 6. Nc3 0-0 7. Nf3 Nc6 8. Qc2 Nb4 9. Qb3 dxc4 10. Bxc4 Nd3+ 11. Bxd3 Qxd3 12. Rd1 Qa6 13. Ne5 Nd5 14. Bg3 b6 15. Nd3 Nxc3 16. Qxc3 Qxa2 1/2-1/2

[Event "Jakarta Tunas Jaya I"]
[Site "Jakarta"]
[Date "2018.07.14"]
[Round "7.3"]
[White "Mahmud, Syarif"]
[Black "Pratama, Constantius Leonard"]
[Result "1/2-1/2"]
[ECO "D13"]
[WhiteElo "2159"]
[BlackElo "2112"]
[PlyCount "55"]
[EventDate "2018.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "INA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. cxd5 cxd5 6. Bg5 Be7 7. e3 0-0 8. Bd3 h6 9. Bh4 a6 10. Rc1 b5 11. 0-0 Bb7 12. Ne5 Nbd7 13. f4 Nb6 14. Bxf6 Bxf6 15. Bb1 Be7 16. f5 exf5 17. Rxf5 Nc4 18. Qd3 Nxe5 19. dxe5 g6 20. Rcf1 Qb6 21. Rf6 Bxf6 22. Rxf6 Qc7 23. e6 Qe5 24. exf7+ Rxf7 25. Rxf7 Kxf7 26. Qxg6+ Ke7 27. Qh7+ Kd6 28. Qxh6+ 1/2-1/2

[Event "Jakarta Tunas Jaya I"]
[Site "Jakarta"]
[Date "2018.07.14"]
[Round "8.5"]
[White "Pratama, Constantius Leonard"]
[Black "Ramadhana Jativa, Garry"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2112"]
[BlackElo "2012"]
[PlyCount "27"]
[EventDate "2018.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "INA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. Nf3 d6 4. Bc4 Nf6 5. d3 Be7 6. 0-0 Nc6 7. Bb3 0-0 8. Re1 a6 9. a4 Qc7 10. Ne2 Na5 11. Ba2 b5 12. Bd2 Bb7 13. Ng3 bxa4 14. Bxa5 1/2-1/2

[Event "Jakarta Tunas Jaya I"]
[Site "Jakarta"]
[Date "2018.07.14"]
[Round "6.4"]
[White "Pratama, Constantius Leonard"]
[Black "Rismanto, Ricky"]
[Result "1/2-1/2"]
[ECO "B92"]
[WhiteElo "2112"]
[BlackElo "2093"]
[PlyCount "103"]
[EventDate "2018.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "INA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Bg5 e6 7. Be2 Be7 8. Be3 e5 9. Nb3 Be6 10. 0-0 0-0 11. f4 exf4 12. Bxf4 Ne5 13. Kh1 a6 14. Nd4 Qc7 15. Nxe6 fxe6 16. Bxe5 dxe5 17. Bf3 Rad8 18. Qe2 Bb4 19. Nb1 Qd7 20. a3 Bc5 21. Nc3 Qc6 22. Na2 Rf7 23. Rad1 Rfd7 24. Rxd7 Rxd7 25. h3 Qb6 26. b4 Be3 27. Rd1 Rxd1+ 28. Qxd1 Bf4 29. Nc1 Bxc1 30. Qxc1 Qd4 31. Qg1 Kf7 32. Qxd4 exd4 33. e5 Nd5 34. Kg1 b5 35. Kf2 Nc3 36. Bb7 Nb1 37. Ke2 Nxa3 38. Kd3 Kg6 39. Be4+ Kg5 40. g3 h5 41. Kxd4 h4 42. gxh4+ Kxh4 43. Bb7 Nxc2+ 44. Kc5 Kxh3 45. Bc8 Kg4 46. Bxe6+ Kg5 47. Bc8 Kg6 48. e6 Kf6 49. Kd6 Ne3 50. e7 Nc4+ 51. Kd7 Ne5+ 52. Kd6 1/2-1/2

[Event "Jakarta Tunas Jaya I"]
[Site "Jakarta"]
[Date "2018.07.13"]
[Round "5.9"]
[White "Handoko, Axel Stephen"]
[Black "Pratama, Constantius Leonard"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "1773"]
[BlackElo "2112"]
[PlyCount "104"]
[EventDate "2018.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "INA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Bg4 3. Bb2 Nd7 4. e3 Ngf6 5. h3 Bxf3 6. gxf3 e5 7. Nc3 c6 8. Qe2 Bd6 9. h4 Qe7 10. Bh3 0-0-0 11. 0-0-0 Ba3 12. d4 Bxb2+ 13. Kxb2 Kb8 14. e4 exd4 15. Rxd4 c5 16. Rd2 d4 17. Na4 a6 18. c4 Ka7 19. Ka1 Nh5 20. Bxd7 Nf4 21. Qf1 Rxd7 22. Nb2 f5 23. Nd3 Nxd3 24. Qxd3 Rf8 25. h5 fxe4 26. fxe4 Rf4 27. Re2 Rh4 28. Ree1 Rxh1 29. Rxh1 Qe5 30. f3 Rf7 31. Kb2 Qg3 32. Rf1 Qh2+ 33. Ka3 Rf4 34. e5 Qxh5 35. e6 Qe5 36. Qxh7 Qxe6 37. Qxg7 Qd6 38. Kb2 Rh4 39. Rf2 Qf4 40. Qe7 Rh5 41. Qe4 Qg3 42. Rd2 Re5 43. Qg4 Qe1 44. Qg2 Qe3 45. Qf2 Qc3+ 46. Ka3 Qc1+ 47. Ka4 Qc3 48. Ka3 Qc1+ 49. Ka4 b5+ 50. cxb5 axb5+ 51. Kxb5 Qa3 52. Kc4 Qb4+ 0-1

[Event "Jakarta Tunas Jaya I"]
[Site "Jakarta"]
[Date "2018.07.12"]
[Round "4.11"]
[White "Pratama, Constantius Leonard"]
[Black "Budiarto, Dhatuyo"]
[Result "1-0"]
[ECO "A18"]
[WhiteElo "2112"]
[BlackElo "1976"]
[PlyCount "59"]
[EventDate "2018.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "INA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. e4 d6 4. d4 Nbd7 5. Be3 g6 6. f3 Bg7 7. Qd2 a6 8. 0-0-0 0-0 9. Bh6 Ne8 10. h4 Bxh6 11. Qxh6 Qf6 12. h5 g5 13. Qxf6 Nexf6 14. h6 Kh8 15. g3 Ng8 16. Nh3 f6 17. Be2 Nb6 18. e5 Nxh6 19. Nxg5 fxg5 20. Rxh6 d5 21. Rdh1 Rf7 22. cxd5 exd5 23. Bd3 Bf5 24. Bxf5 Rxf5 25. Rxh7+ Kg8 26. Rh8+ Kg7 27. R1h7+ Kg6 28. Rh6+ Kg7 29. R8h7+ Kg8 30. Rxc7 1-0

[Event "Jakarta Tunas Jaya I"]
[Site "Jakarta"]
[Date "2018.07.12"]
[Round "3.2"]
[White "Sunardi, Sadeli"]
[Black "Pratama, Constantius Leonard"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2054"]
[BlackElo "2112"]
[PlyCount "115"]
[EventDate "2018.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "INA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Bxf6 gxf6 9. Na3 f5 10. Bd3 Qg5 11. g3 f4 12. Nd5 Kd8 13. c3 Be6 14. Be2 Qg6 15. Bf3 Bxd5 16. Qxd5 Qe6 17. Qd3 Kc7 18. b4 b5 19. Nc2 Qc4 20. Qxc4 bxc4 21. Be2 f5 22. f3 fxe4 23. fxe4 Na7 24. Bxc4 Nb5 25. Kd2 Bh6 26. Kd3 Kb6 27. Bd5 Raf8 28. Raf1 Nc7 29. Bb3 Rd8 30. gxf4 Bxf4 31. Ne3 Bxe3 32. Kxe3 Nb5 33. a4 Nxc3 34. Kd3 Rc8 35. Rf6 Rc6 36. Rc1 Rhc8 37. Rc2 Nb1 38. Rxc6+ Rxc6 39. Bd5 Rc3+ 40. Ke2 Rc2+ 41. Kd1 Rxh2 42. Rxd6+ Ka7 43. Kc1 Nc3 44. Bc4 Nxe4 45. Rxa6+ Kb8 46. a5 Nc3 47. b5 e4 48. Re6 Na2+ 49. Kd1 Nc3+ 50. Ke1 Rh1+ 51. Kd2 Nb1+ 52. Ke3 Na3 53. Bd5 Rh3+ 54. Kxe4 Rh4+ 55. Kd3 Rh5 56. Ke4 Rh4+ 57. Kf3 Nc4 58. b6 1-0

[Event "Jakarta Tunas Jaya I"]
[Site "Jakarta"]
[Date "2018.07.11"]
[Round "2.9"]
[White "Pratama, Constantius Leonard"]
[Black "Rinal"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2112"]
[BlackElo "1832"]
[PlyCount "106"]
[EventDate "2018.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "INA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Bc4 Nf6 5. e5 d5 6. Bb5 Nd7 7. Nf3 Nd4 8. 0-0 a6 9. Be2 Nb8 10. Nxd4 cxd4 11. Nb1 Nc6 12. Kh1 h5 13. c4 Nb4 14. a3 d3 15. axb4 dxe2 16. Qxe2 dxc4 17. Qxc4 Bd7 18. Nc3 Qb6 19. d4 Rc8 20. Qd3 Bxb4 21. Qg3 Kf8 22. d5 h4 23. Qh3 Qc7 24. dxe6 Bxe6 25. f5 Bc4 26. Re1 Rd8 27. Be3 Rd3 28. Rad1 Kg8 29. Rxd3 Bxd3 30. Bg5 Bc4 31. e6 f6 32. Bd2 Bd6 33. Ne4 Bb5 34. Bc3 Rh6 35. Qg4 Bc6 36. h3 Be7 37. Bd2 Rh7 38. Bc3 Be8 39. Bxf6 Bh5 40. Qg5 Bb4 41. Bc3 Bxc3 42. Nxc3 Rh6 43. Nd5 Qa5 44. Ne7+ Kh7 45. Rc1 Be8 46. Ng6 Qb4 47. e7 Qxb2 48. Rc8 Qb1+ 49. Kh2 Qb5 50. Qf4 a5 51. Qb8 Rh5 52. Rxe8 Rxf5 53. Rh8+ Kxg6 1-0

[Event "World ol U16"]
[Site "Ahmedabad"]
[Date "2017.12.17"]
[Round "8.3"]
[White "Pratama, Constantius Leonard"]
[Black "Poleg, Dan"]
[Result "0-1"]
[ECO "C60"]
[WhiteElo "2134"]
[BlackElo "2268"]
[PlyCount "90"]
[EventDate "2017.12.11"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "IND"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]
[WhiteTeam "Indonesia"]
[BlackTeam "Israel"]
[WhiteTeamCountry "INA"]
[BlackTeamCountry "ISR"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Nge7 5. c3 Bg7 6. d4 exd4 7. cxd4 a6 8. Ba4 b5 9. Bb3 d6 10. h3 0-0 11. Nc3 Na5 12. Bc2 Bb7 13. Re1 Rc8 14. Bf4 c5 15. dxc5 dxc5 16. Be5 Nc4 17. Bxg7 Kxg7 18. Qc1 Qc7 19. Nh2 h5 20. b3 Nb6 21. Qe3 Rce8 22. e5 Ned5 23. Nxd5 Nxd5 24. Qg5 Qe7 25. Nf3 Qxg5 26. Nxg5 Re7 27. a4 bxa4 28. Rxa4 Nb4 29. Bb1 Bc6 30. Ra5 Bb5 31. f4 Nc6 32. Ra2 Nd4 33. Rb2 Rd8 34. Kf2 Bc6 35. Be4 Rb7 36. Bxc6 Nxc6 37. Rc2 Nb4 38. Ree2 Nxc2 39. Rxc2 Rxb3 40. Rxc5 Rd2+ 41. Kg1 Rbb2 42. Rc7 Rxg2+ 43. Kh1 Rh2+ 44. Kg1 Rhc2 45. Rxf7+ Kg8 0-1

[Event "World ol U16"]
[Site "Ahmedabad"]
[Date "2017.12.16"]
[Round "6.3"]
[White "Pratama, Constantius Leonard"]
[Black "Adhikari, Kripa"]
[Result "1-0"]
[ECO "B02"]
[WhiteElo "2134"]
[BlackElo "1446"]
[PlyCount "69"]
[EventDate "2017.12.11"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "IND"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]
[WhiteTeam "Indonesia"]
[BlackTeam "Nepal II"]
[WhiteTeamCountry "INA"]
[BlackTeamCountry "NEP"]

1. e4 d5 2. exd5 Nf6 3. Nc3 c6 4. dxc6 Nxc6 5. Nf3 e5 6. d3 Bc5 7. Be2 0-0 8. 0-0 Re8 9. Bg5 h6 10. Bh4 Be7 11. Bg3 Qc7 12. d4 Bd6 13. Nb5 Qe7 14. Nxd6 Qxd6 15. dxe5 Qxd1 16. Raxd1 Ng4 17. h3 Ngxe5 18. Nxe5 Nxe5 19. Bxe5 Rxe5 20. Rd8+ Kh7 21. Bf3 Rb8 22. Rf8 Re7 23. Rd1 Rc7 24. Rdd8 f5 25. Bh5 g6 26. Rh8+ Kg7 27. Rhg8+ Kf6 28. Rxg6+ Ke5 29. c3 Rd7 30. f4+ Kxf4 31. Re8 Rd3 32. Kf2 Rd2+ 33. Be2 Rxe2+ 34. Rxe2 Bd7 35. g3# 1-0

[Event "World ol U16"]
[Site "Ahmedabad"]
[Date "2017.12.16"]
[Round "7.2"]
[White "Pratama, Constantius Leonard"]
[Black "Zholdoshmamatov, Adilet"]
[Result "1-0"]
[ECO "B24"]
[WhiteElo "2134"]
[BlackElo "1513"]
[PlyCount "83"]
[EventDate "2017.12.11"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "IND"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]
[WhiteTeam "Indonesia"]
[BlackTeam "Kyrgyzstan"]
[WhiteTeamCountry "INA"]
[BlackTeamCountry "KGZ"]

1. e4 c5 2. Nc3 Nc6 3. g3 e6 4. Bg2 Nf6 5. d3 Be7 6. Nf3 d5 7. e5 Nd7 8. Qe2 0-0 9. 0-0 a6 10. a4 Re8 11. Re1 Qc7 12. Bf4 Bf8 13. Nxd5 exd5 14. e6 Nde5 15. Bxe5 Nxe5 16. exf7+ Qxf7 17. Nxe5 Qe6 18. c4 dxc4 19. dxc4 Qf6 20. Bd5+ Be6 21. Nd7 Qe7 22. Qxe6+ Qxe6 23. Rxe6 Red8 24. Re8+ Kh8 25. Rxf8+ Rxf8 26. Nxf8 Rxf8 27. Re1 h6 28. a5 Rb8 29. Re6 Rd8 30. h4 Kh7 31. h5 Kh8 32. Kg2 Kh7 33. Bxb7 Rb8 34. Be4+ Kg8 35. Rb6 Re8 36. Bg6 Ra8 37. b4 cxb4 38. Rxb4 Rc8 39. Rb6 Kf8 40. Re6 Ra8 41. c5 Rb8 42. c6 1-0

[Event "World ol U16"]
[Site "Ahmedabad"]
[Date "2017.12.13"]
[Round "4.2"]
[White "Fourie, Louhan"]
[Black "Pratama, Constantius Leonard"]
[Result "1/2-1/2"]
[ECO "D43"]
[WhiteElo "1686"]
[BlackElo "2134"]
[PlyCount "121"]
[EventDate "2017.12.11"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "IND"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]
[WhiteTeam "South Africa II"]
[BlackTeam "Indonesia"]
[WhiteTeamCountry "RSA"]
[BlackTeamCountry "INA"]

1. c4 c6 2. Nc3 d5 3. d4 Nf6 4. Nf3 e6 5. Bg5 h6 6. Bh4 dxc4 7. e4 g5 8. Bg3 b5 9. Qc2 Bb7 10. Rd1 Qa5 11. Nd2 Nbd7 12. Be2 Qb6 13. 0-0 c5 14. d5 e5 15. Nxb5 Qxb5 16. Nxc4 a6 17. Nd6+ Bxd6 18. Bxb5 axb5 19. f3 Ke7 20. a3 Nh5 21. Bf2 Nf4 22. Be3 f6 23. g3 Ng6 24. Qg2 c4 25. Qh3 Nc5 26. Kh1 Bc8 27. Qh5 Kf7 28. f4 Kg7 29. f5 Nf8 30. Qg4 h5 31. Qf3 Nfd7 32. Qg2 Nb3 33. Qc2 Bb7 34. Rf3 Kf7 35. Qe2 Ndc5 36. Bxc5 Nxc5 37. Rc1 Ke7 38. Rfc3 Bc8 39. Kg2 Bd7 40. Rd1 Nb3 41. Qc2 Rhc8 42. Qe2 Be8 43. h4 g4 44. Qe3 Nd4 45. Rdc1 Bc5 46. Qe1 Nf3 47. Qd1 Bd4 48. R3c2 Kd6 49. Qe2 Bb6 50. Rc3 Nd4 51. Qe3 Bc5 52. Qe1 Ke7 53. Qf1 Nb3 54. Rd1 Bd4 55. Rc2 Rc5 56. Qe1 Ra4 57. Rb1 Kd6 58. Kh2 Rc7 59. Kg2 Bb6 60. Rd1 Nd4 61. Rcc1 1/2-1/2

[Event "World ol U16"]
[Site "Ahmedabad"]
[Date "2017.12.12"]
[Round "3.3"]
[White "Ivannikau, Maksim"]
[Black "Pratama, Constantius Leonard"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "2221"]
[BlackElo "2134"]
[PlyCount "74"]
[EventDate "2017.12.11"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "IND"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]
[WhiteTeam "Belarus"]
[BlackTeam "Indonesia"]
[WhiteTeamCountry "BLR"]
[BlackTeamCountry "INA"]

1. Nf3 d5 2. g3 Bg4 3. Bg2 Bxf3 4. Bxf3 c6 5. 0-0 Nf6 6. d3 e6 7. Qe1 Nbd7 8. e4 dxe4 9. dxe4 Qc7 10. Bd2 Bc5 11. a4 0-0 12. a5 e5 13. Na3 Rfd8 14. Qe2 Nf8 15. Nc4 Ne6 16. c3 b5 17. axb6 axb6 18. b4 b5 19. Rxa8 Rxa8 20. bxc5 bxc4 21. Qxc4 Ra5 22. Be3 Nd7 23. Rb1 h6 24. Bg4 Nexc5 25. Rb4 Nf6 26. Bf5 Ncd7 27. Kg2 Ra1 28. Rb2 Nf8 29. f4 g6 30. fxe5 Qxe5 31. Bd4 Qe7 32. Qxc6 gxf5 33. Bxf6 Qa3 34. Rb8 Ra2+ 35. Kh3 fxe4 36. Qxe4 Qa4 37. Qxa4 Rxa4 1-0

[Event "World ol U16"]
[Site "Ahmedabad"]
[Date "2017.12.12"]
[Round "2.2"]
[White "Liang, Hairan"]
[Black "Pratama, Constantius Leonard"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2150"]
[BlackElo "2134"]
[PlyCount "48"]
[EventDate "2017.12.11"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "IND"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]
[WhiteTeam "Canada"]
[BlackTeam "Indonesia"]
[WhiteTeamCountry "CAN"]
[BlackTeamCountry "INA"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. c3 e5 6. d3 Nge7 7. Be3 d6 8. d4 cxd4 9. cxd4 0-0 10. dxe5 dxe5 11. Qa4 Nd4 12. Nxd4 exd4 13. Rd1 a6 14. Bg5 Bg4 15. Qb4 Nd5 16. Qd2 Qb6 17. f3 Ne3 18. fxg4 Nxd1 19. Qxd1 d3+ 20. Kh1 Qxb5 21. Bc1 Rfd8 22. Qd2 Rac8 23. Nc3 Qc4 24. Nd5 Qxe4 0-1

[Event "World ol U16"]
[Site "Ahmedabad"]
[Date "2017.12.11"]
[Round "1.2"]
[White "Gholami, Aryan"]
[Black "Pratama, Constantius Leonard"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2479"]
[BlackElo "2134"]
[PlyCount "37"]
[EventDate "2017.12.11"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "IND"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]
[WhiteTeam "Iran"]
[BlackTeam "Indonesia"]
[WhiteTeamCountry "IRI"]
[BlackTeamCountry "INA"]

1. Nf3 d5 2. d4 c6 3. Bf4 Qb6 4. Qc1 Nf6 5. e3 Bf5 6. Nbd2 e6 7. c4 Bb4 8. a3 Bxd2+ 9. Nxd2 Ne4 10. c5 Qa5 11. b4 Qa4 12. Nb1 g5 13. Be5 f6 14. Bxb8 Rxb8 15. f3 0-0 16. fxe4 Bxe4 17. Nc3 Qc2 18. Qxc2 Bxc2 19. Kd2 1-0

[Event "Yogyakarta Istimewa op"]
[Site "Yogyakarta"]
[Date "2016.08.21"]
[Round "7"]
[White "Catur, Adi Sagita"]
[Black "Pratama, Constantius Leonard"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2070"]
[BlackElo "2058"]
[PlyCount "111"]
[EventDate "2016.08.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "INA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. e3 Nbd7 6. Qc2 Bd6 7. b3 b6 8. Be2 Bb7 9. 0-0 0-0 10. Bb2 Qe7 11. Rad1 Rac8 12. e4 dxe4 13. Nxe4 Bb8 14. Rfe1 c5 15. Nxf6+ Nxf6 16. dxc5 bxc5 17. Ng5 Qc7 18. g3 e5 19. Bd3 h6 20. Nh7 Bf3 21. Nxf6+ gxf6 22. Be2 Bb7 23. Qf5 Qc6 24. Rd5 Qe6 25. Qxe6 fxe6 26. Rd2 Rfd8 27. Red1 Rd4 28. Bxd4 exd4 29. b4 Bd6 30. bxc5 Bxc5 31. Rxd4 Bxd4 32. Rxd4 Bc6 33. f3 Kf7 34. Kf2 e5 35. Rd3 Ke7 36. Ra3 Rc7 37. Ke3 Kd6 38. Ra5 Bd7 39. Ra6+ Bc6 40. Bd3 Kc5 41. Be4 Bxe4 42. Kxe4 Rf7 43. Kf5 Kxc4 44. Rxf6 Re7 45. Rxh6 Kd4 46. Re6 Rf7+ 47. Rf6 Re7 48. Rd6+ Ke3 49. Re6 Rf7+ 50. Kxe5 Rh7 51. f4 Rxh2 52. Ra6 Kf3 53. Ra3+ Kg4 54. f5 Re2+ 55. Kf6 Rf2 56. Kg6 1-0

[Event "Yogyakarta Istimewa op"]
[Site "Yogyakarta"]
[Date "2016.08.19"]
[Round "2"]
[White "Pratama, Constantius Leonard"]
[Black "Pangestu, Alditya Aji"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2058"]
[PlyCount "77"]
[EventDate "2016.08.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "INA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 Nc6 4. Bc4 Nf6 5. Nf3 e6 6. d3 a6 7. a4 Be7 8. Ba2 Nb4 9. Bb3 0-0 10. 0-0 Bd7 11. Kh1 Qc7 12. Ne2 b5 13. e5 Ng4 14. h3 Nh6 15. axb5 axb5 16. Bd2 Nc6 17. c3 Nf5 18. d4 Qb6 19. Bc2 cxd4 20. Bxf5 exf5 21. Nexd4 dxe5 22. fxe5 Bc5 23. Rxa8 Rxa8 24. Be3 Be6 25. b4 Bxd4 26. Nxd4 Nxe5 27. Nxf5 Qb7 28. Qd6 Qe4 29. Rf4 Qb1+ 30. Kh2 Nc4 31. Ne7+ Kh8 32. Qc6 Qa2 33. Bd4 Qa6 34. Qf3 Re8 35. Rxf7 Qd6+ 36. Kh1 Rxe7 37. Bxg7+ Kg8 38. Rf8+ Kxg7 39. Qf6# 1-0

