[Event "BRA-ch U18"]
[White "Santos, Matheus Medeiros"]
[Black "Mileski, Lucas de Souza"]
[Site "Sao Paulo"]
[Round "5"]
[Result "0-1"]
[Date "2018.04.01"]
[ECO "A37"]
[BlackElo "1775"]
[PlyCount "74"]
[EventDate "2018.03.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. Nc3 e5 4. d3 Nge7 5. g3 g6 6. Bg2 Bg7 7. 0-0 0-0 8. Qd2 d6 9. b3 Be6 10. Bb2 h6 11. e3 f5 12. Ne2 Bf7 13. Ne1 d5 14. cxd5 Bxd5 15. Nc3 Bxg2 16. Nxg2 Qa5 17. Rfd1 Rad8 18. Ne2 Qa6 19. Qc3 b6 20. Nef4 Rd6 21. Ne2 Nd5 22. Qc4 b5 23. Qxc5 Ncb4 24. a3 Nxd3 25. Rxd3 Rc8 26. Qxd5+ Rxd5 27. Rxd5 Rc2 28. Bxe5 Bxe5 29. Rxe5 Rxe2 30. Nf4 Rd2 31. Rc1 Qb7 32. Nxg6 Qf3 33. Re8+ Kg7 34. Rc7+ Kxg6 35. Rg8+ Kh5 36. g4+ Kh4 37. gxf5 Rd1# 0-1

[Event "BRA-ch U18"]
[White "Oliveira, Danyel Angelo Aquin"]
[Black "Santos, Matheus Medeiros"]
[Site "Sao Paulo"]
[Round "4"]
[Result "1-0"]
[Date "2018.03.31"]
[ECO "A47"]
[WhiteElo "1777"]
[PlyCount "123"]
[EventDate "2018.03.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 b6 3. Bf4 Bb7 4. e3 e6 5. Bd3 c5 6. c3 Nc6 7. Nbd2 cxd4 8. exd4 d5 9. Qe2 Be7 10. Ne5 Nxe5 11. dxe5 Nd7 12. Qg4 g6 13. h4 h5 14. Qg3 Qc7 15. Nb3 Nc5 16. Bb5+ Bc6 17. Bxc6+ Qxc6 18. Nd4 Qb7 19. Qe3 Bf8 20. Qe2 a6 21. a4 Bg7 22. 0-0 Qc7 23. Rfe1 0-0 24. f3 Rfc8 25. Qe3 Qd8 26. g3 Qe7 27. Re2 Ra7 28. Rc2 Qd7 29. b3 Rac7 30. Qe2 Nb7 31. Rac1 Ra8 32. Bg5 Nd8 33. Bxd8 Qxd8 34. f4 Qe7 35. Qd3 f5 36. exf6 Qxf6 37. Re1 Re7 38. Rce2 Kf7 39. Re3 Rae8 40. Nc6 Rc7 41. Ne5+ Kg8 42. Qxa6 d4 43. cxd4 Rc2 44. Qd3 Qf5 45. Qxf5 gxf5 46. R1e2 Rxe2 47. Rxe2 Rd8 48. Rd2 Bxe5 49. fxe5 Kf7 50. Kf2 Ke7 51. Ke3 Rg8 52. Kf3 Rd8 53. Kf4 Rg8 54. d5 Rg4+ 55. Kf3 exd5 56. Rxd5 Ke6 57. Rb5 Re4 58. b4 Rxe5 59. Rxe5+ Kxe5 60. a5 Kd6 61. a6 Kc7 62. b5 1-0

[Event "BRA-ch U18"]
[White "Santos, Matheus Medeiros"]
[Black "Schena, Arthur"]
[Site "Sao Paulo"]
[Round "3"]
[Result "0-1"]
[Date "2018.03.30"]
[ECO "A25"]
[BlackElo "1849"]
[PlyCount "66"]
[EventDate "2018.03.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 e5 2. g3 f5 3. Nc3 Nc6 4. e3 e4 5. d3 exd3 6. Qxd3 d6 7. Bg2 Nf6 8. Nf3 Be7 9. 0-0 h6 10. Nh4 Ne5 11. Qe2 Be6 12. b3 g5 13. Nf3 c6 14. Bb2 Qc7 15. Nd4 Bd7 16. Rad1 0-0-0 17. Qc2 f4 18. exf4 gxf4 19. Nf5 Bf8 20. gxf4 Ng6 21. Ne2 Re8 22. Bxf6 Rg8 23. Rfe1 Kb8 24. h4 d5 25. h5 Nxf4 26. Nxf4 Qxf4 27. Ng3 Qxf6 28. cxd5 cxd5 29. Bxd5 Rxe1+ 30. Rxe1 Rg7 31. Qe4 Bc5 32. Qf3 Qxf3 33. Bxf3 Rxg3+ 0-1

[Event "BRA-ch U18"]
[White "Volkmann, Andre Jordi"]
[Black "Santos, Matheus Medeiros"]
[Site "Sao Paulo"]
[Round "1"]
[Result "1-0"]
[Date "2018.03.29"]
[ECO "D35"]
[WhiteElo "1910"]
[PlyCount "57"]
[EventDate "2018.03.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bf4 Bd6 5. Bxd6 Qxd6 6. c5 Qd8 7. e3 Bd7 8. Nf3 0-0 9. Bd3 Qe7 10. Ne5 Nc6 11. f4 Nb4 12. Bb1 Bc8 13. Qa4 Na6 14. g4 Nd7 15. Nf3 c6 16. h4 Nf6 17. Qc2 g6 18. h5 Nxg4 19. hxg6 fxg6 20. Qe2 Qg7 21. Ng5 Nf6 22. Bd3 Nb4 23. 0-0-0 Nxd3+ 24. Qxd3 Bd7 25. Rdg1 h6 26. Nxe6 Bxe6 27. Rxg6 Qxg6 28. Qxg6+ Kh8 29. Rxh6+ 1-0

