[Event "Cochabamba GP op 4th"]
[Site "Cochabamba"]
[Date "2023.09.09"]
[Round "5"]
[White "Garcia Alay, Marcial"]
[Black "Marcoz Orellana, Matias Alexis"]
[Result "0-1"]
[ECO "C25"]
[WhiteElo "1478"]
[BlackElo "1160"]
[PlyCount "174"]
[EventDate "2023.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 d6 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. Nge2 Nge7 7. 0-0 0-0 8. f4 f5 9. fxe5 dxe5 10. Bg5 fxe4 11. Rxf8+ Qxf8 12. Nxe4 Nf5 13. c3 h6 14. Bd2 Be6 15. b3 Rd8 16. Qc2 Qe7 17. Rd1 Bd5 18. Bc1 Bf7 19. Qd2 a5 20. Qb2 Kh7 21. Qa3 Bf8 22. Qb2 Bg7 23. a3 Ra8 24. h3 Bd5 25. Ng5+ hxg5 26. Bxd5 Rd8 27. Be4 Qc5+ 28. Kh1 Qf2 29. Rg1 Rf8 30. Rg2 Qf1+ 31. Kh2 Nd6 32. Be3 Nxe4 33. dxe4 Qf3 34. Bc5 Rd8 35. Qc2 Rd3 36. Ng1 Qxe4 37. Rd2 Rxd2+ 38. Qxd2 Qf5 39. Be3 g4 40. hxg4 Qxg4 41. Qd5 Qf5 42. Qd2 Bf6 43. Qe2 Qe4 44. Qd2 Qf5 45. Nh3 Kg7 46. Kg2 Qe4+ 47. Kh2 Qf5 48. Kg2 Qe4+ 49. Kh2 Qf5 50. Kg2 Ne7 51. b4 Qe4+ 52. Kh2 axb4 53. axb4 Nd5 54. Bh6+ Kf7 55. Bg5 c6 56. Qf2 Qf5 57. Qxf5 gxf5 58. Bd2 e4 59. c4 e3 60. Be1 Bc3 61. Bxc3 Nxc3 62. Kg2 e2 63. Kf2 Ne4+ 64. Kxe2 Nxg3+ 65. Kf3 Ne4 66. c5 Ke6 67. Nf4+ Ke5 68. Ke3 Nf6 69. Nd3+ Kd5 70. Nb2 Nd7 71. Kd3 Ne5+ 72. Kc3 f4 73. Nd1 Ng4 74. Kd3 f3 75. Nc3+ Ke5 76. b5 f2 77. Ke2 Kd4 78. bxc6 bxc6 79. Na4 Kc4 80. Kf1 Kb4 81. Nb2 Kxc5 82. Nd3+ Kd4 83. Nc1 c5 84. Ne2+ Kd3 85. Nc1+ Kc2 86. Ne2 c4 87. Nd4+ Kd3 0-1

[Event "Cochabamba GP op 4th"]
[Site "Cochabamba"]
[Date "2023.09.09"]
[Round "6"]
[White "Marcoz Orellana, Matias Alexis"]
[Black "Monroy, Osvaldo"]
[Result "0-1"]
[ECO "E72"]
[WhiteElo "1160"]
[BlackElo "1670"]
[PlyCount "82"]
[EventDate "2023.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. d4 d6 6. e4 e5 7. d5 c6 8. Be3 cxd5 9. cxd5 Ng4 10. Nge2 Nxe3 11. fxe3 Qb6 12. Qd2 Bh6 13. Nd1 f5 14. exf5 Bxf5 15. 0-0 Na6 16. Kh1 Rac8 17. Rc1 Nb4 18. Rxc8 Rxc8 19. Nec3 a5 20. Be4 Bxe4+ 21. Nxe4 Rc2 22. Nf6+ Kh8 23. Nd7 Qb5 24. Qe1 Qxd7 25. Rf6 Nxd5 26. Rf3 Qh3 27. Nf2 Qh5 28. g4 Qg5 29. Qxa5 Rc1+ 30. Kg2 Nc7 31. Qd2 Rc6 32. h3 Qe7 33. Ne4 d5 34. Ng3 d4 35. Qd1 Bxe3 36. Qf1 Ne6 37. Rf7 Nf4+ 38. Qxf4 exf4 39. Rxe7 Rc2+ 40. Kf3 Rf2+ 41. Ke4 fxg3 0-1

[Event "Cochabamba GP op 4th"]
[Site "Cochabamba"]
[Date "2023.09.08"]
[Round "4"]
[White "Marcoz Orellana, Matias Alexis"]
[Black "Montevilla Cahuasa, Sebastian"]
[Result "1-0"]
[ECO "B20"]
[WhiteElo "1160"]
[BlackElo "1399"]
[PlyCount "71"]
[EventDate "2023.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 c5 2. e4 Nc6 3. g3 g6 4. Ne2 Bg7 5. Nbc3 Ne5 6. Nf4 d6 7. d3 Nf6 8. Bg2 Bd7 9. 0-0 0-0 10. Qe2 a6 11. a4 Ne8 12. Nfd5 e6 13. Ne3 Nc6 14. Nc2 Nc7 15. f4 Re8 16. Qf2 Rb8 17. Be3 b5 18. axb5 axb5 19. Rab1 b4 20. Ne2 b3 21. Ne1 Nb4 22. Nc3 Na2 23. Qd2 Rb4 24. Nf3 Bc6 25. e5 Bxf3 26. Bxf3 dxe5 27. fxe5 Bxe5 28. Bc6 Rf8 29. Bxc5 Bd4+ 30. Bxd4 Qxd4+ 31. Rf2 Rd8 32. Rd1 Rb6 33. Bg2 Rbd6 34. Bf1 f5 35. Qe1 Qf6 36. Ne4 1-0

[Event "Cochabamba GP op 4th"]
[Site "Cochabamba"]
[Date "2023.09.07"]
[Round "1"]
[White "Marcoz Orellana, Matias Alexis"]
[Black "Salas, Javier"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "1160"]
[BlackElo "1702"]
[PlyCount "100"]
[EventDate "2023.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 e6 2. d4 d5 3. a3 c5 4. Nc3 cxd4 5. Qxd4 Nc6 6. Qd1 d4 7. Na2 Nf6 8. Bg5 Be7 9. Nf3 0-0 10. Qc2 Qc7 11. 0-0-0 e5 12. Bxf6 Bxf6 13. e4 Be6 14. Kb1 Rfc8 15. Rc1 Na5 16. Nd2 b5 17. b3 bxc4 18. Bxc4 Nxc4 19. Nxc4 Rab8 20. Ka1 Bg5 21. Rb1 g6 22. h4 Bh6 23. h5 g5 24. f3 Qc5 25. Nb4 Bxc4 26. bxc4 a5 27. Na2 Qxa3 28. Rxb8 Rxb8 29. c5 Bf8 30. c6 Bb4 31. c7 Rc8 32. Rc1 Bc3+ 33. Kb1 Rxc7 34. Nxc3 Rxc3 35. Qb2 Rb3 36. Rc8+ Kg7 37. Rb8 Rxb2+ 38. Rxb2 d3 39. Rb6 h6 40. Rb5 d2 41. Rd5 Qc1+ 42. Ka2 d1Q 43. Rxd1 Qxd1 44. f4 gxf4 45. g4 fxg3 46. Ka3 g2 47. Kb2 Qd3 48. Ka2 g1Q 49. Kb2 Qg2+ 50. Kc1 Qdf1# 0-1

[Event "Cochabamba GP op 4th"]
[Site "Cochabamba"]
[Date "2023.09.07"]
[Round "2"]
[White "Pairo Nina, Andrea Sherazade"]
[Black "Marcoz Orellana, Matias Alexis"]
[Result "0-1"]
[ECO "B50"]
[BlackElo "1160"]
[PlyCount "72"]
[EventDate "2023.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Bc4 e5 3. Nf3 d6 4. Bb5+ Bd7 5. Bc4 h6 6. 0-0 Nf6 7. Nc3 a6 8. Re1 Nc6 9. d3 Be6 10. Bb3 Be7 11. Bxe6 fxe6 12. Bd2 0-0 13. Qc1 Nh7 14. Bxh6 gxh6 15. Qxh6 Rf6 16. Qh3 Qd7 17. Qg3+ Kh8 18. Ng5 Nxg5 19. Qxg5 Qe8 20. Re3 Qg6 21. Rh3+ Kg7 22. Qe3 Rf4 23. Rg3 Rg4 24. Re1 Nd4 25. Rxg4 Qxg4 26. h3 Qg6 27. Qc1 Nf3+ 28. Kf1 Nxe1 29. Qxe1 Rf8 30. Qe3 Bg5 31. Qe2 Qf6 32. Nd1 Bh4 33. g3 Bxg3 34. c4 Qh4 35. b3 Qxh3+ 36. Ke1 Bf4 0-1

[Event "BOL-ch U12"]
[Site "Cochabamba"]
[Date "2023.01.14"]
[Round "5"]
[White "Bonifacio Sarmiento, Derek Mauricio"]
[Black "Marcoz Orellana, Matias Alexis"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1006"]
[BlackElo "1065"]
[PlyCount "32"]
[EventDate "2023.01.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 d6 5. Ng5 Be6 6. Bxe6 fxe6 7. Nxe6 Qe7 8. Nxc5 dxc5 9. Be3 Nf6 10. Nc3 0-0 11. Qd2 a6 12. Bg5 Qe6 13. Bxf6 Qxf6 14. Nd5 Qd6 15. 0-0 Ne7 16. Nxe7+ Qxe7 0-1

[Event "BOL-ch U12"]
[Site "Cochabamba"]
[Date "2023.01.14"]
[Round "3"]
[White "Marcoz Orellana, Matias Alexis"]
[Black "Veliz Gonzales, Jhon Hoswel"]
[Result "1-0"]
[ECO "C46"]
[WhiteElo "1065"]
[PlyCount "159"]
[EventDate "2023.01.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4 4. a3 Ba5 5. d3 Nf6 6. Bd2 h6 7. Be2 d6 8. 0-0 0-0 9. Na2 Bb6 10. Be3 Ba5 11. c3 Ne7 12. c4 c5 13. b4 Bb6 14. h3 Be6 15. Nc3 a5 16. b5 Ng6 17. a4 Qd7 18. Nh2 Nh4 19. Ng4 Nxg4 20. Bxg4 Bxg4 21. Qxg4 Qxg4 22. hxg4 Bd8 23. Nd5 b6 24. Kh2 Ra7 25. Kh3 Rb7 26. f3 Ng6 27. g3 f6 28. Rh1 Ne7 29. Nxe7+ Rxe7 30. f4 g5 31. Kg2 Rh7 32. Rh2 Kg7 33. Kf3 Rfh8 34. Rah1 Be7 35. fxg5 fxg5 36. Ke2 Rf8 37. Rh5 Rfh8 38. Rf1 Rf8 39. Rf5 Rxf5 40. gxf5 Bf6 41. Kf3 Kg8 42. Kg4 Kg7 43. Rh1 Kg8 44. Kh5 Kg7 45. Bd2 Kg8 46. Kg6 Bd8 47. Rxh6 Ra7 48. Bxg5 Rg7+ 49. Kh5 Rxg5+ 50. Kh4 Kg7 51. Rh5 Rxf5+ 52. Kg4 Rf2 53. Rf5 Ra2 54. Rf3 Rxa4 55. Kf5 Kf7 56. g4 Ra1 57. Rf2 a4 58. g5 a3 59. g6+ Kg7 60. Ke6 Bf6 61. Rxf6 Rg1 62. Rf2 Rxg6+ 63. Kd7 Rg3 64. Rd2 Rg1 65. Ra2 Kf6 66. Kxd6 Rg7 67. Rxa3 Rg3 68. Kc6 Ke6 69. Kxb6 Kd6 70. Kb7 Rg7+ 71. Ka6 Rg8 72. Rc3 Kc7 73. Ka7 Rb8 74. Rb3 Rb7+ 75. Ka6 Rb6+ 76. Ka5 Rb8 77. b6+ Kc6 78. b7 Rxb7 79. Rxb7 Kxb7 80. Kb5 1-0

[Event "BOL-ch U12"]
[Site "Cochabamba"]
[Date "2023.01.14"]
[Round "4"]
[White "Yujra Condori, Miguel Angel"]
[Black "Marcoz Orellana, Matias Alexis"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1167"]
[BlackElo "1065"]
[PlyCount "30"]
[EventDate "2023.01.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. g3 Nf6 4. Bg2 Bf5 5. 0-0 e6 6. b3 Bd6 7. Bb2 0-0 8. Nbd2 h6 9. Rc1 a6 10. c4 Qe7 11. c5 Bxc5 12. dxc5 e5 13. Re1 e4 14. Nd4 Nxd4 15. Bxd4 c6 1-0

[Event "BOL-ch U12"]
[Site "Cochabamba"]
[Date "2023.01.13"]
[Round "1"]
[White "Marcoz Orellana, Matias Alexis"]
[Black "Veliz Rios, Dylan Abdiel"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1065"]
[PlyCount "73"]
[EventDate "2023.01.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bc4 Nf6 5. d3 0-0 6. 0-0 d6 7. a3 a5 8. h3 b6 9. Be3 Bxe3 10. fxe3 Be6 11. Ba2 d5 12. exd5 Nxd5 13. Nxd5 Bxd5 14. e4 Bxa2 15. Rxa2 Qf6 16. c3 Ne7 17. Qb3 Ng6 18. Qb5 Rfe8 19. g3 h5 20. Nh4 Qe6 21. Raa1 Nxh4 22. gxh4 Qxh3 23. Kf2 Qxh4+ 24. Ke2 Re6 25. Qd5 Rae8 26. Kd2 Rg6 27. Qxf7+ Kh7 28. Qxe8 Rg2+ 29. Kc1 Qg5+ 30. Kb1 Qd2 31. Qxh5+ Kg8 32. Qe8+ Kh7 33. Rh1+ Rh2 34. Rxh2+ Qxh2 35. Ka2 Qg3 36. Rh1+ Qh4 37. Rxh4# 1-0

[Event "BOL-ch U12"]
[Site "Cochabamba"]
[Date "2023.01.13"]
[Round "2"]
[White "Saavedra Aiza, Alejandro"]
[Black "Marcoz Orellana, Matias Alexis"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1337"]
[BlackElo "1065"]
[PlyCount "87"]
[EventDate "2023.01.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nc6 3. Nc3 Nf6 4. Nb5 e5 5. Bxe5 Nxe5 6. dxe5 Ng8 7. Qxd5 Qxd5 8. Nxc7+ Kd8 9. Nxd5 Be6 10. Nc3 Bb4 11. e3 Bxc3+ 12. bxc3 Ne7 13. Rd1+ Kc7 14. Bb5 Rhd8 15. Rxd8 Rxd8 16. a3 a6 17. Bd3 h6 18. Nf3 Kd7 19. 0-0 Ke8 20. Nd4 Bd7 21. Rb1 b5 22. c4 bxc4 23. Bxc4 a5 24. e6 fxe6 25. Bxe6 Bc6 26. Bb3 Bd7 27. Bc4 Nc6 28. Rd1 Bc8 29. Bb5 Bb7 30. Kf1 Rc8 31. Nf5 Rd8 32. Rxd8+ Kxd8 33. Bxc6 Bxc6 34. f3 Ke8 35. Nxg7+ Kf7 36. Nf5 h5 37. Nd4 Bd7 38. Ke2 Kf6 39. Kd3 a4 40. Kc4 Ke5 41. Kb4 Kd5 42. c4+ Ke5 43. Nb5 Kf5 44. Kxa4 1-0

