[Event "Temuco op 1st"]
[Site "Temuco"]
[Date "2023.10.09"]
[Round "6"]
[White "Martinez Sandoval, David"]
[Black "Diaz Villagran, Robert"]
[Result "0-1"]
[ECO "A53"]
[WhiteElo "2114"]
[BlackElo "2250"]
[PlyCount "62"]
[EventDate "2023.10.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. d5 Be7 6. g3 0-0 7. h4 Nc5 8. Qc2 a5 9. Bh3 c6 10. Bg5 Nfd7 11. Be3 a4 12. 0-0-0 Qa5 13. Nf3 Nb6 14. Nd2 cxd5 15. exd5 f5 16. f4 e4 17. Bf1 a3 18. b3 Bf6 19. Ndb1 Na6 20. Bd4 Nb4 21. Qf2 Bxd4 22. Rxd4 Nd7 23. Nb5 Nc5 24. N1xa3 Bd7 25. Rd2 Rfe8 26. Qd4 e3 27. Rg2 Bxb5 28. Nxb5 Nxa2+ 29. Kd1 Ne4 30. g4 fxg4 31. Rxg4 Nf2+ 0-1

[Event "Temuco op 1st"]
[Site "Temuco"]
[Date "2023.10.08"]
[Round "5"]
[White "Martinez Sandoval, David"]
[Black "Salinas Herrera, Pablo Patricio"]
[Result "0-1"]
[ECO "A03"]
[WhiteElo "2114"]
[BlackElo "2460"]
[PlyCount "42"]
[EventDate "2023.10.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. f4 g6 2. Nf3 d5 3. e3 Bg7 4. d4 Nh6 5. Bd3 0-0 6. 0-0 Bf5 7. Be2 Qd6 8. b3 c5 9. Ba3 Ng4 10. Qd2 Qe6 11. Ne5 cxd4 12. exd4 Nc6 13. c4 Ncxe5 14. fxe5 Bh6 15. Qb2 Ne3 16. Rf3 dxc4 17. Qc1 Ng4 18. Qxc4 Be3+ 19. Kh1 Qxc4 20. Bxc4 Bxd4 21. Nc3 Nxe5 0-1

[Event "Temuco op 1st"]
[Site "Temuco"]
[Date "2023.10.08"]
[Round "4"]
[White "Riffo Paz, Elizardo"]
[Black "Martinez Sandoval, David"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2208"]
[BlackElo "2114"]
[PlyCount "64"]
[EventDate "2023.10.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 Na5 4. Be2 a6 5. 0-0 b5 6. d4 cxd4 7. Nxd4 Bb7 8. a4 b4 9. c3 e6 10. Bd2 Qb6 11. Be3 Bxe4 12. Nd2 Bd5 13. c4 Bb7 14. N4b3 Qc7 15. Nxa5 Qxa5 16. c5 Bd5 17. Bf3 Ne7 18. Re1 Rc8 19. Bxd5 Nxd5 20. Bd4 Qc7 21. Qf3 Ne7 22. Ne4 Ng6 23. Bxg7 Bxg7 24. Nd6+ Kd8 25. Qxf7 Bd4 26. Rxe6 dxe6 27. Nb7+ Qxb7 28. Qxb7 Rxc5 29. Qxb4 e5 30. Rd1 Kc7 31. h4 Rf8 32. h5 Bxf2+ 0-1

[Event "Mendoza Bermejo Memorial"]
[Site "Mendoza"]
[Date "2023.05.19"]
[Round "3"]
[White "Perez Gormaz, Matias Ariel"]
[Black "Martinez Sandoval, David"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2406"]
[BlackElo "2087"]
[PlyCount "37"]
[EventDate "2023.05.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 c5 3. d5 Qb6 4. Nc3 Qxb2 5. Bd2 Qb6 6. e4 e5 7. f4 Bd6 8. Nf3 Nxe4 9. Nxe4 exf4 10. Rb1 Qc7 11. c4 0-0 12. Bd3 Be5 13. Nxe5 Qxe5 14. 0-0 f5 15. Nf2 g5 16. Qh5 Qg7 17. h4 h6 18. Rb3 Rf6 19. Re1 1-0

[Event "Montevideo Duchamp Cup 6th"]
[Site "Montevideo"]
[Date "2023.02.11"]
[Round "9"]
[White "Martinez Sandoval, David"]
[Black "Izquierdo, Sebastian"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "2117"]
[BlackElo "1960"]
[PlyCount "41"]
[EventDate "2023.02.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. e4 c6 2. d3 d5 3. Nd2 e5 4. Ngf3 Bd6 5. Qe2 Qe7 6. d4 exd4 7. exd5 Qxe2+ 8. Bxe2 c5 9. Nc4 Bf8 10. Bf4 b6 11. c3 dxc3 12. 0-0-0 cxb2+ 13. Kxb2 f6 14. Rhe1 g6 15. Nce5 Nd7 16. Bb5 Ne7 17. Nc4 Kd8 18. Bc6 Ba6 19. Nd6 Rc8 20. Nf7+ Ke8 21. Nxh8 1-0

[Event "Montevideo Duchamp Cup 6th"]
[Site "Montevideo"]
[Date "2023.02.10"]
[Round "8"]
[White "Romero, Juan Ignacio"]
[Black "Martinez Sandoval, David"]
[Result "0-1"]
[ECO "B39"]
[WhiteElo "1896"]
[BlackElo "2117"]
[PlyCount "60"]
[EventDate "2023.02.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 8. Qxg4 Nxd4 9. Qd1 Ne6 10. Rc1 Qa5 11. Bd3 b6 12. 0-0 Bb7 13. a3 g5 14. Nb5 Bc6 15. Bd2 Qa6 16. Bc3 Rg8 17. Qg4 Qb7 18. e5 h5 19. Qg3 Nf4 20. Rfe1 Bxg2 21. Bf5 0-0-0 22. c5 a6 23. Nd4 e6 24. c6 dxc6 25. f3 h4 26. Qf2 exf5 27. Qc2 c5 28. Qxf5+ Kb8 29. Bb4 Rxd4 30. Bc3 Qxf3 0-1

[Event "Montevideo Duchamp Cup 6th"]
[Site "Montevideo"]
[Date "2023.02.09"]
[Round "7"]
[White "Martinez Sandoval, David"]
[Black "Flores Quillas, Diego Saul Rodrigo"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2117"]
[BlackElo "2350"]
[PlyCount "42"]
[EventDate "2023.02.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 d5 4. f3 Nf6 5. Nc3 Bf5 6. g4 Bg6 7. h4 h6 8. e3 e6 9. Qd2 a6 10. Nge2 c5 11. 0-0-0 Nc6 12. Bg2 b5 13. g5 Nh5 14. e4 cxd4 15. exd5 dxc3 16. Qxc3 Nb4 17. Qe5 Rc8 18. Nc3 Nxa2+ 19. Kb1 Nxc3+ 20. bxc3 Nxf4 21. d6 Qd7 0-1

[Event "Montevideo Duchamp Cup 6th"]
[Site "Montevideo"]
[Date "2023.02.08"]
[Round "6"]
[White "Rodriguez Farias, Victor Hugo"]
[Black "Martinez Sandoval, David"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "1838"]
[BlackElo "2117"]
[PlyCount "54"]
[EventDate "2023.02.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 f5 2. Bg5 c6 3. f3 Qb6 4. Nc3 Qxb2 5. Bd2 Qb6 6. Bf4 Nf6 7. Rb1 Qa5 8. Bd2 d5 9. e4 dxe4 10. fxe4 fxe4 11. Nxe4 Qxa2 12. Nxf6+ exf6 13. Rb3 Bd6 14. Bc4 Kd8 15. Qe2 b5 16. Bf7 a5 17. d5 Ra7 18. Bh5 g6 19. Be3 Re7 20. Bb6+ Kd7 21. Bg4+ f5 22. Bxf5+ gxf5 23. dxc6+ Nxc6 24. Re3 Rhe8 25. Kf2 Rxe3 26. Bxe3 f4 27. Qg4+ Kc7 0-1

[Event "Montevideo Duchamp Cup 6th"]
[Site "Montevideo"]
[Date "2023.02.07"]
[Round "5"]
[White "Martinez Sandoval, David"]
[Black "De Dovitiis, Alejo"]
[Result "0-1"]
[ECO "C86"]
[WhiteElo "2117"]
[BlackElo "2293"]
[PlyCount "118"]
[EventDate "2023.02.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Qe2 d6 7. c3 0-0 8. h3 Bd7 9. Bc2 h6 10. d4 Re8 11. d5 Nb8 12. c4 Bf8 13. g4 Nh7 14. Nc3 h5 15. Nh2 Qh4 16. Kg2 Ng5 17. Qe3 Be7 18. Qg3 Qxg3+ 19. fxg3 hxg4 20. h4 Nh7 21. Bd1 Nf6 22. Bg5 b5 23. Bxf6 Bxf6 24. Nxg4 Bd8 25. a4 b4 26. Na2 a5 27. Nc1 Na6 28. Nd3 c6 29. Ne3 Bb6 30. Bg4 Bxg4 31. Nxg4 Bd4 32. Nh2 Rac8 33. Rac1 cxd5 34. cxd5 Be3 35. Rce1 Rc2+ 36. Kf3 Bd4 37. Re2 Rec8 38. Rd1 b3 39. Nf1 Nb4 40. Nxb4 axb4 41. Rd3 Rxe2 42. Kxe2 Rc2+ 43. Nd2 Bc3 44. Kd1 Rxb2 45. Kc1 Rc2+ 46. Kd1 Bxd2 47. Rxd2 Ra2 48. Kc1 Rxa4 49. Rb2 Ra1+ 50. Kd2 Ra2 51. Kc1 Rxb2 52. Kxb2 f5 53. Kxb3 f4 54. gxf4 exf4 55. Kxb4 f3 56. e5 f2 57. exd6 f1Q 58. d7 Qf4+ 59. Kc5 Qc7+ 0-1

[Event "Montevideo Duchamp Cup 6th"]
[Site "Montevideo"]
[Date "2023.02.06"]
[Round "4"]
[White "Rivas Puch, Juan"]
[Black "Martinez Sandoval, David"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1637"]
[BlackElo "2117"]
[PlyCount "70"]
[EventDate "2023.02.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[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 0-0 12. Nc2 Rb8 13. Bd3 Be6 14. Nce3 Bg5 15. h4 Bxe3 16. Nxe3 a5 17. g4 Ne7 18. Qf3 Ng6 19. Ng2 Qd7 20. h5 Bxg4 21. Qg3 Ne7 22. Ne3 Be6 23. Ke2 f5 24. Rag1 Rf7 25. Qg5 h6 26. Qxh6 f4 27. Nf5 Nxf5 28. exf5 Bxf5 29. Qg5 Bxd3+ 30. Kxd3 b4 31. c4 d5 32. Qxe5 dxc4+ 33. Kxc4 Qc6+ 34. Qc5 Qe4+ 35. Kb3 a4+ 0-1

[Event "Montevideo Duchamp Cup 6th"]
[Site "Montevideo"]
[Date "2023.02.05"]
[Round "3"]
[White "Martinez Sandoval, David"]
[Black "Vazquez, Facundo"]
[Result "0-1"]
[ECO "A29"]
[WhiteElo "2117"]
[BlackElo "2329"]
[PlyCount "54"]
[EventDate "2023.02.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Nf3 Nc6 5. Bg2 0-0 6. 0-0 e4 7. Ne1 Bxc3 8. bxc3 Re8 9. Nc2 d5 10. cxd5 Qxd5 11. Ne3 Qh5 12. Rb1 Rb8 13. f3 exf3 14. exf3 Bh3 15. g4 Qg6 16. d3 Bxg2 17. Nxg2 Nd5 18. Rb3 Qf6 19. Bd2 Rbd8 20. Qc1 Ne5 21. Ne1 Qg6 22. Qb1 h5 23. g5 b6 24. c4 Ne7 25. f4 Nxc4 26. f5 Nxf5 27. dxc4 Rxd2 0-1

[Event "Montevideo Duchamp Cup 6th"]
[Site "Montevideo"]
[Date "2023.02.04"]
[Round "2"]
[White "Pascualvaca, Federico"]
[Black "Martinez Sandoval, David"]
[Result "0-1"]
[ECO "B39"]
[WhiteElo "1775"]
[BlackElo "2117"]
[PlyCount "38"]
[EventDate "2023.02.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 8. Qxg4 Nxd4 9. Qd1 Ne6 10. Qd2 Qa5 11. Rc1 b6 12. Be2 Bb7 13. f3 f5 14. exf5 gxf5 15. Bd3 Rg8 16. a3 Qe5 17. 0-0 f4 18. Bf2 Qg5 19. Be1 Bd4+ 0-1

[Event "Montevideo Duchamp Cup 6th"]
[Site "Montevideo"]
[Date "2023.02.03"]
[Round "1"]
[White "Martinez Sandoval, David"]
[Black "Vassallo, Julio"]
[Result "1-0"]
[ECO "E61"]
[WhiteElo "2117"]
[BlackElo "1593"]
[PlyCount "67"]
[EventDate "2023.02.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. e3 g6 4. Nf3 Bg7 5. Nc3 0-0 6. a3 d6 7. b4 Bf5 8. Bd3 Bxd3 9. Qxd3 Nc6 10. Rb1 cxd4 11. exd4 Rc8 12. 0-0 Nd7 13. Rd1 e5 14. d5 e4 15. Qxe4 Nce5 16. Nd2 Nb6 17. Nb5 a6 18. Nxd6 Qxd6 19. c5 Qxd5 20. cxb6 Rfd8 21. Qxd5 Rxd5 22. Rf1 Nd3 23. Nb3 Nxc1 24. Rfxc1 Rxc1+ 25. Rxc1 Bb2 26. Rc8+ Kg7 27. Kf1 Rb5 28. Na5 Bd4 29. Nxb7 Rxb6 30. Na5 Re6 31. Rc6 Kf6 32. Rc2 h5 33. g3 Ke7 34. Nc6+ 1-0

[Event "Santiago de Chile Nunoa CC IRT 1"]
[Site "Santiago de Chile"]
[Date "2012.07.17"]
[Round "5"]
[White "Larrain Cortes, Cristian"]
[Black "Martinez Sandoval, David"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "2079"]
[BlackElo "2091"]
[PlyCount "92"]
[EventDate "2012.07.03"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d3 e6 4. g3 g6 5. Bg2 Bg7 6. 0-0 Nge7 7. Re1 d5 8. e5 Qc7 9. Bf4 h6 10. h4 b6 11. Nbd2 Bb7 12. c3 0-0-0 13. Rc1 g5 14. hxg5 Ng6 15. gxh6 Bxe5 16. Nxe5 Ncxe5 17. Rxe5 Nxe5 18. d4 f6 19. dxe5 fxe5 20. Bg5 Rdg8 21. Qh5 e4 22. Bf6 e3 23. Nf1 exf2+ 24. Kh2 Rh7 25. Bh3 Qc6 26. Ne3 d4 27. Bg2 Qd6 28. Bxb7+ Kxb7 29. Nf1 e5 30. Bxe5 Qc6 31. Bf4 Rgh8 32. Rc2 Rxh6 33. Bxh6 Rxh6 34. Qxh6 Qxh6+ 35. Kg2 Qe6 36. Rxf2 Qxa2 37. cxd4 Qd5+ 38. Kh3 Qxd4 39. Rf7+ Kc6 40. Rxa7 Qh8+ 41. Kg4 Qxb2 42. Rf7 c4 43. Kg5 Qc1+ 44. Kh5 c3 45. g4 c2 46. Rf6+ Kb7 0-1

[Event "Santiago de Chile Nunoa CC IRT 1"]
[Site "Santiago de Chile"]
[Date "2012.07.13"]
[Round "4"]
[White "Martinez Sandoval, David"]
[Black "Escudero Donoso, Felipe"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2091"]
[BlackElo "2091"]
[PlyCount "101"]
[EventDate "2012.07.03"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 c5 5. Be3 cxd4 6. Bxd4 Nc6 7. Bxf6 exf6 8. Qxd8+ Nxd8 9. Bb5+ Nc6 10. 0-0-0 Bc5 11. Nxe4 Be3+ 12. Kb1 0-0 13. Nd6 Be6 14. Nxb7 Nb4 15. a3 Rab8 16. Nd6 Rfd8 17. Ne2 Nd5 18. Nc4 Bc5 19. Ba4 Rdc8 20. Bb3 Ne7 21. Nd2 f5 22. Bxe6 fxe6 23. Nb3 Nd5 24. Rd3 Be7 25. Ned4 Nf4 26. Rd2 Kf7 27. g3 Nd5 28. Re1 Rb6 29. Rde2 Bf6 30. Nxe6 Rc4 31. h4 a5 32. Ng5+ Kg6 33. f4 a4 34. Rd1 Nc3+ 35. bxc3 axb3 36. Re3 Bxc3 37. Re6+ Rxe6 38. Nxe6 b2 39. Ng5 Bf6 40. Nf3 Rc3 41. Rd3 Rc5 42. Ne5+ Kh5 43. Re3 Rb5 44. c4 Rc5 45. Kxb2 Rxc4 46. Kb3 Re4 47. Rxe4 fxe4 48. Kc4 Bxe5 49. fxe5 Kg4 50. e6 e3 51. e7 1-0

[Event "Santiago de Chile Nunoa CC IRT 1"]
[Site "Santiago de Chile"]
[Date "2012.07.10"]
[Round "3"]
[White "Martinez Sandoval, David"]
[Black "Pollio, Carlos Eduardo"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2091"]
[BlackElo "1954"]
[PlyCount "63"]
[EventDate "2012.07.03"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Bf5 4. Nc3 e6 5. e3 Nd7 6. Bd2 Bd6 7. Rc1 Ngf6 8. Qb3 Rb8 9. Nh4 Be4 10. cxd5 exd5 11. Nxe4 Nxe4 12. Nf5 Bf8 13. Bd3 Nxd2 14. Kxd2 g6 15. Ng3 f5 16. h4 h5 17. Ne2 Bd6 18. f3 Nf6 19. Rcg1 Qe7 20. a3 Kf7 21. g4 hxg4 22. fxg4 Nxg4 23. e4 Rxh4 24. exd5 Kg7 25. Rxh4 Qxh4 26. dxc6 bxc6 27. Qe6 Bh2 28. Rg2 Rxb2+ 29. Kc3 Rb7 30. Kc4 Qe7 31. Bxf5 Qxe6+ 32. Bxe6 0-1

[Event "Santiago de Chile Nunoa CC IRT 1"]
[Site "Santiago de Chile"]
[Date "2012.07.06"]
[Round "2"]
[White "Reyes Jara, Paula"]
[Black "Martinez Sandoval, David"]
[Result "0-1"]
[ECO "B34"]
[WhiteElo "2115"]
[BlackElo "2091"]
[PlyCount "52"]
[EventDate "2012.07.03"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. Nc3 Nf6 7. f4 d5 8. Bb5 0-0 9. Nxc6 bxc6 10. Bxc6 Rb8 11. exd5 Rxb2 12. 0-0 Ng4 13. Bd4 e5 14. fxe5 Qh4 15. h3 Nxe5 16. Bf2 Qc4 17. Ne2 Nxc6 18. dxc6 Rxc2 19. Rc1 Rxc1 20. Nxc1 Ba6 21. Bxa7 Qxf1+ 22. Qxf1 Bxf1 23. Kxf1 Rc8 24. Be3 Rxc6 25. Ke2 Re6 26. Kd2 Rxe3 0-1

[Event "CHI-chT Universities"]
[Site "Punta Arenas"]
[Date "2010.10.22"]
[Round "7"]
[White "Morales Gonzalez, Rodrigo"]
[Black "Martinez Sandoval, David"]
[Result "1/2-1/2"]
[ECO "B32"]
[WhiteElo "2084"]
[BlackElo "2112"]
[PlyCount "56"]
[EventDate "2010.10.19"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb3 Nf6 6. N1d2 d5 7. Bd3 Bg4 8. f3 dxe4 9. Nxe4 Nxe4 10. Bxe4 Qxd1+ 11. Kxd1 0-0-0+ 12. Nd2 Be6 13. Bxc6 bxc6 14. b3 Bb4 15. Ke2 Bf5 16. Ne4 Bxe4 17. fxe4 Rd4 18. Be3 Rxe4 19. Kf3 f5 20. Bxa7 c5 21. c3 Rf4+ 22. Ke2 Ba3 23. Rad1 Kc7 24. Rd5 Re4+ 25. Kf3 Ra8 26. Rhd1 Rxa7 27. Rd7+ Kb8 28. Rd8+ Kb7 1/2-1/2

[Event "CHI-chT Universities"]
[Site "Punta Arenas"]
[Date "2010.10.21"]
[Round "6"]
[White "Martinez Sandoval, David"]
[Black "Abarza Alarcon, Oscar"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2112"]
[BlackElo "1882"]
[PlyCount "45"]
[EventDate "2010.10.19"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 c5 4. f3 Qa5+ 5. c3 Nf6 6. d5 d6 7. e4 b5 8. Nd2 Nbd7 9. a4 b4 10. Nc4 Qd8 11. cxb4 cxb4 12. Ne2 g6 13. Nd4 Bb7 14. a5 Nc5 15. a6 Bc8 16. Nc6 Qc7 17. e5 Nxd5 18. Qxd5 Be6 19. exd6 Bxd5 20. dxc7 Bxc6 21. Ne5 Ne6 22. Nxc6 Nxf4 23. Nb8 1-0

[Event "CHI-chT Universities"]
[Site "Punta Arenas"]
[Date "2010.10.21"]
[Round "5"]
[White "Valdes Escobar, Alvaro Daniel"]
[Black "Martinez Sandoval, David"]
[Result "1-0"]
[ECO "B39"]
[WhiteElo "2347"]
[BlackElo "2112"]
[PlyCount "73"]
[EventDate "2010.10.19"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 g6 5. e4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 8. Qxg4 Nxd4 9. Qd1 Ne6 10. Rc1 Qa5 11. Qd2 b6 12. Be2 Bb7 13. f3 Rg8 14. 0-0 f5 15. Rfd1 d6 16. exf5 gxf5 17. a3 f4 18. Bxf4 Bd4+ 19. Kh1 Qf5 20. Be3 Be5 21. Nd5 Qg6 22. Bf1 Rc8 23. b4 Ng7 24. Bd3 Qh5 25. f4 e6 26. Be2 Qg6 27. fxe5 exd5 28. cxd5 Rxc1 29. Rxc1 Nf5 30. Bd3 Bxd5 31. Bb5+ Kd8 32. Qxd5 Nxe3 33. Qa8+ Ke7 34. exd6+ Kxd6 35. Qc6+ Ke5 36. Qc3+ Kf4 37. g3+ 1-0

[Event "CHI-chT Universities"]
[Site "Punta Arenas"]
[Date "2010.10.20"]
[Round "4"]
[White "Martinez Sandoval, David"]
[Black "Garcia Cardenas, Pablo"]
[Result "1/2-1/2"]
[ECO "D05"]
[WhiteElo "2112"]
[BlackElo "2316"]
[PlyCount "55"]
[EventDate "2010.10.19"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. Nbd2 Nf6 4. e3 c5 5. b3 Nc6 6. Bb2 Bd6 7. Ne5 0-0 8. f4 Nd7 9. Bd3 Nb4 10. Be2 f6 11. Nxd7 Bxd7 12. 0-0 Qc7 13. a3 Nc6 14. dxc5 Bxc5 15. Rf3 e5 16. Nf1 Ne7 17. Kh1 Bg4 18. Rg3 Bxe2 19. Qxe2 Nf5 20. Rf3 Rac8 21. Rd1 exf4 22. exf4 Nh4 23. Rh3 Qxf4 24. Bc1 Qf2 25. Qxf2 Bxf2 26. Rd2 Be1 27. Rd1 Bf2 28. Rd2 1/2-1/2

[Event "CHI-chT Universities"]
[Site "Punta Arenas"]
[Date "2010.10.20"]
[Round "3"]
[White "Martinez Sandoval, David"]
[Black "Valenzuela Saavedra, Elias"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2112"]
[BlackElo "2247"]
[PlyCount "93"]
[EventDate "2010.10.19"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 c5 4. d5 d6 5. f3 Nf6 6. e4 g6 7. c4 Bg7 8. Nc3 0-0 9. Bd3 Nbd7 10. Qd2 Nh5 11. Bh6 Ne5 12. Bxg7 Nxd3+ 13. Qxd3 Kxg7 14. g4 Nf6 15. 0-0-0 a6 16. Nge2 Bd7 17. g5 Nh5 18. Ng3 Nxg3 19. hxg3 b5 20. Qd2 Rh8 21. Rh6 Kg8 22. Rdh1 Qf8 23. e5 dxe5 24. Qh2 Qg7 25. Ne4 Kf8 26. d6 exd6 27. Qd2 f5 28. Qxd6+ Qe7 29. Qxe7+ Kxe7 30. Rxh7+ Rxh7 31. Rxh7+ Kd8 32. Nxc5 Bc6 33. Ne6+ Kc8 34. Rc7+ Kb8 35. Rxc6 bxc4 36. Rd6 Ka7 37. Rxa6+ Kxa6 38. Nc7+ Kb7 39. Nxa8 Kxa8 40. Kd2 Kb7 41. Kc3 Kb6 42. Kxc4 Kc6 43. a4 Kd6 44. a5 Kc6 45. b4 Kd6 46. b5 Kc7 47. Kd5 1-0

[Event "CHI-chT Universities"]
[Site "Punta Arenas"]
[Date "2010.10.19"]
[Round "2"]
[White "Gallardo Vargas, Felipe"]
[Black "Martinez Sandoval, David"]
[Result "1/2-1/2"]
[ECO "B25"]
[BlackElo "2112"]
[PlyCount "75"]
[EventDate "2010.10.19"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. d3 g6 4. g3 Bg7 5. Nge2 d6 6. Bg2 e6 7. 0-0 Nge7 8. Bg5 h6 9. Be3 Nd4 10. Qd2 Bd7 11. Nd1 Nxe2+ 12. Qxe2 0-0 13. Qd2 Kh7 14. d4 Bb5 15. Re1 Rc8 16. c3 b6 17. b3 Nc6 18. Rc1 a5 19. c4 cxd4 20. cxb5 dxe3 21. Nxe3 Nd4 22. Qd3 Qd7 23. a4 Rxc1 24. Rxc1 Rc8 25. Rc4 Rxc4 26. Qxc4 f5 27. exf5 gxf5 28. Nc2 d5 29. Qd3 Nxc2 30. Qxc2 d4 31. g4 d3 32. Qd2 e5 33. gxf5 Qxf5 34. Qe3 d2 35. Qxd2 Qb1+ 36. Bf1 Qg6+ 37. Bg2 Qb1+ 38. Bf1 1/2-1/2

[Event "CHI-chT Universities"]
[Site "Punta Arenas"]
[Date "2010.10.19"]
[Round "1"]
[White "Martinez Sandoval, David"]
[Black "Adasme Fredes, Mauricio"]
[Result "1-0"]
[ECO "D04"]
[WhiteElo "2112"]
[BlackElo "1987"]
[PlyCount "55"]
[EventDate "2010.10.19"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 g6 4. Bd3 Bg7 5. Nbd2 0-0 6. 0-0 Nc6 7. c4 e5 8. dxe5 Ng4 9. cxd5 Ncxe5 10. Nxe5 Bxe5 11. Nf3 Qxd5 12. h3 Nf6 13. Bxg6 Qe6 14. Bc2 Bd6 15. Qd4 Kh8 16. b4 Rg8 17. Bb2 Be7 18. Qh4 Rg7 19. Ng5 Qd5 20. f4 Bf5 21. Bb3 Qd2 22. Rf2 Qxe3 23. Nxf7+ Rxf7 24. Bxf7 Kg7 25. Bb3 h6 26. g4 Bd3 27. g5 Kh7 28. Qxh6# 1-0

[Event "Santiago Endesa Interempresas tt-B"]
[Site "Santiago de Chile"]
[Date "2010.07.27"]
[Round "2"]
[White "Martinez Sandoval, David"]
[Black "Perez Gormaz, Matias Ariel"]
[Result "0-1"]
[ECO "D04"]
[WhiteElo "2050"]
[BlackElo "2047"]
[PlyCount "85"]
[EventDate "2010.07.13"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "CHI"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. Nbd2 Nc6 5. c4 cxd4 6. exd4 g6 7. cxd5 Nxd5 8. Qb3 Bg7 9. Bc4 e6 10. Ne4 0-0 11. 0-0 Na5 12. Qd3 Nb6 13. Bb3 Nxb3 14. Qxb3 Qd5 15. Qd3 Bd7 16. Rd1 Bc6 17. Nc3 Qh5 18. Ne4 Qf5 19. Nc5 Qxd3 20. Rxd3 Rfd8 21. Bg5 Rd5 22. Rad1 Rf5 23. Be3 Rd8 24. b3 Nd5 25. Bg5 Rc8 26. g4 Rf4 27. Bxf4 Nxf4 28. Re3 Nd5 29. Red3 Nb4 30. Ne5 Nxd3 31. Nxc6 Rxc6 32. Rxd3 b6 33. Ne4 Kf8 34. d5 exd5 35. Rxd5 Rc2 36. a4 Rb2 37. Rd3 Be5 38. Nd2 Ke7 39. Kg2 Bc7 40. Nc4 Rb1 41. Na3 Rc1 42. h3 a6 43. Nc4 0-1

[Event "Santiago Endesa Interempresas tt-B"]
[Site "Santiago de Chile"]
[Date "2010.07.20"]
[Round "2"]
[White "Caceres Vasquez, Sergio"]
[Black "Martinez Sandoval, David"]
[Result "1/2-1/2"]
[ECO "A59"]
[WhiteElo "2176"]
[BlackElo "2050"]
[PlyCount "57"]
[EventDate "2010.07.13"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "CHI"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. e4 Bxf1 8. Kxf1 d6 9. g3 Bg7 10. Kg2 0-0 11. Nf3 Nbd7 12. h3 Ra6 13. Re1 Qa8 14. Qc2 e6 15. Bf4 exd5 16. exd5 Nxd5 17. Nxd5 Qxd5 18. Rad1 Bd4 19. Qe4 Qxe4 20. Rxe4 Bxb2 21. Rxd6 Rxd6 22. Bxd6 Rc8 23. Re7 Nf8 24. Rc7 Rxc7 25. Bxc7 Ne6 26. Be5 Bxe5 27. Nxe5 f6 28. Nc4 Nd4 29. f4 1/2-1/2

[Event "Santiago Endesa Interempresas tt-B"]
[Site "Santiago de Chile"]
[Date "2010.07.13"]
[Round "1"]
[White "Martinez Sandoval, David"]
[Black "Vasallo, Emilio"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "2050"]
[PlyCount "33"]
[EventDate "2010.07.13"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "CHI"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. Bd3 c5 5. b3 Nc6 6. Bb2 Be7 7. 0-0 Bd7 8. Nbd2 0-0 9. Ne5 Qc7 10. f4 Rac8 11. a3 a6 12. Rf3 cxd4 13. Nxc6 bxc6 14. Bxd4 c5 15. Bxf6 Bxf6 16. Bxh7+ Kxh7 17. Rh3+ 1-0

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2003.06.??"]
[Round "1"]
[White "Martinez, Alejandro"]
[Black "Martinez Sandoval, David"]
[Result "0-1"]
[ECO "B32"]
[PlyCount "38"]
[EventDate "2003.06.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[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 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qe7 8. Qc7 d5 9. Qxe7+ Ngxe7 10. Nc3 Be6 11. Bd3 Rc8 12. a3 Nd4 13. f4 dxe4 14. Bxe4 f5 15. Bd3 e4 16. Be3 Nec6 17. Nxe4 fxe4 18. Bxe4 Bf5 19. Bxf5 Nxf5 0-1

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2003.06.??"]
[Round "4"]
[White "Martinez Sandoval, David"]
[Black "Arias, Juan"]
[Result "1-0"]
[ECO "A53"]
[PlyCount "94"]
[EventDate "2003.06.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. c4 c6 4. Nc3 Nbd7 5. e4 Qc7 6. Be2 e5 7. d5 Nc5 8. Qc2 Be7 9. 0-0 0-0 10. h3 h6 11. Be3 cxd5 12. Nxd5 Nxd5 13. cxd5 Bd7 14. Rac1 Rac8 15. b4 Na6 16. Qxc7 Rxc7 17. b5 Rxc1 18. Rxc1 Nc5 19. Bxc5 dxc5 20. Nxe5 Rd8 21. a4 Bd6 22. Nc4 Bf4 23. Rc2 Re8 24. Bd3 f5 25. f3 fxe4 26. fxe4 b6 27. Re2 Be5 28. Nxe5 Rxe5 29. Bc4 Kf8 30. Kf2 Ke7 31. Ke3 g5 32. Rf2 h5 33. Be2 h4 34. Bh5 Be8 35. Bxe8 Kxe8 36. g3 hxg3 37. Rg2 Re7 38. Rxg3 Rh7 39. Kf3 Rh4 40. Rxg5 Rxh3+ 41. Rg3 Rxg3+ 42. Kxg3 Ke7 43. e5 Kf7 44. Kf4 c4 45. Ke4 c3 46. Kd3 c2 47. Kxc2 Ke7 1-0

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2003.06.??"]
[Round "7"]
[White "Martinez Sandoval, David"]
[Black "Cordova, Emilio"]
[Result "0-1"]
[ECO "D94"]
[BlackElo "2123"]
[PlyCount "62"]
[EventDate "2003.06.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. e3 0-0 7. Bc4 Nb6 8. Bb3 Na6 9. 0-0 c5 10. dxc5 Nxc5 11. Bc2 Qxd1 12. Rxd1 Bg4 13. Nd5 Nxd5 14. Rxd5 Rac8 15. Rd2 Rc7 16. Ne1 Rfc8 17. f3 Be6 18. Kf2 Na6 19. a3 Nc5 20. g3 g5 21. Rb1 Nb3 22. Bxb3 Bxb3 23. Rd3 Bc4 24. Rd2 Ba2 25. Ra1 Bb3 26. Rd3 Bc4 27. Rd1 Be6 28. e4 Bb3 29. Rd3 Bc2 30. Rd2 Ba4 31. Nd3 Bb5 0-1

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2003.06.??"]
[Round "5"]
[White "Perez Olarte, Cesar Camilo"]
[Black "Martinez Sandoval, David"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "30"]
[EventDate "2003.06.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[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. Nb3 Bb4 7. f3 d5 8. Bd2 dxe4 9. Nxe4 Nxe4 10. fxe4 Qh4+ 11. g3 Qxe4+ 12. Qe2 Qxh1 13. Bxb4 Nxb4 14. Qxe5+ Be6 15. 0-0-0 0-0 0-1

[Event "Pan American-ch U12"]
[Site "Villa Giardino"]
[Date "2002.05.30"]
[Round "7"]
[White "Martinez Sandoval, David"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1-0"]
[ECO "E17"]
[PlyCount "127"]
[EventDate "2002.05.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. 0-0 0-0 6. b3 b6 7. Bb2 Bb7 8. Nbd2 Nbd7 9. Ne5 c5 10. c4 cxd4 11. Bxd4 Qc7 12. Nxd7 Qxd7 13. Bb2 Rfd8 14. e3 dxc4 15. Nxc4 Bxg2 16. Qxd7 Rxd7 17. Kxg2 Bc5 18. Bxf6 gxf6 19. Rad1 Rad8 20. Rxd7 Rxd7 21. Kf3 b5 22. Na5 Bb6 23. Nc6 Rd2 24. Ra1 Rc2 25. Nb4 Rc3 26. Na6 Kf8 27. b4 Ke7 28. a4 bxa4 29. Rxa4 Rc4 30. Ra1 Kd6 31. b5 e5 32. Rd1+ Ke6 33. Rd2 Rc3 34. Rb2 Kd5 35. Kg4 Ke6 36. h4 f5+ 37. Kh5 Bd8 38. Nb4 f6 39. Nc6 Bb6 40. Ra2 Rb3 41. Nxa7 Bxa7 42. Rxa7 Rxb5 43. Rxh7 Rb2 44. Kg6 Rxf2 45. Rf7 Rg2 46. Rxf6+ Kd5 47. Rxf5 Rxg3+ 48. Rg5 Rxe3 49. h5 Ra3 50. h6 Ra6+ 51. Kh5 Ra2 52. h7 Rh2+ 53. Kg6 Kd4 54. Rh5 Rg2+ 55. Kf7 Rf2+ 56. Ke7 Ra2 57. h8Q Ra7+ 58. Ke6 Ra6+ 59. Kf5 Ra5 60. Rh4+ Kd3 61. Qxe5 Rxe5+ 62. Kxe5 Kc3 63. Rd4 Kb3 64. Kd5 1-0

[Event "Pan American-ch U12"]
[Site "Villa Giardino"]
[Date "2002.05.28"]
[Round "4"]
[White "Martinez Sandoval, David"]
[Black "Vera, I Luis M"]
[Result "0-1"]
[ECO "C92"]
[PlyCount "98"]
[EventDate "2002.05.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 d6 6. Re1 Be7 7. c3 0-0 8. h3 b5 9. Bb3 a5 10. d4 Bb7 11. d5 Nb8 12. Bc2 c5 13. Nbd2 Re8 14. Nf1 Bc8 15. Ng3 h6 16. Nh2 Nbd7 17. f4 Nh7 18. Nf5 Bf8 19. fxe5 Nxe5 20. Rf1 Bxf5 21. exf5 Nc4 22. Ng4 Nf6 23. Qd3 Ne5 24. Qg3 Nexg4 25. hxg4 Nxd5 26. g5 hxg5 27. Bxg5 f6 28. Bd2 c4 29. Qf3 Qb6+ 30. Kh1 Nc7 31. Qh5 Qc6 32. Rf4 Qd5 33. Rd4 Qf7 34. Qh3 d5 35. Bd1 Re4 36. Bh5 g6 37. Bxg6 Qg7 38. Rf1 Qh8 39. Qxh8+ Kxh8 40. Rf3 Kg8 41. Rg3 Bg7 42. Bh5 Kh8 43. Rh3 Kg8 44. Bf4 Rxd4 45. cxd4 Rc8 46. Bg6 b4 47. Bxc7 Rxc7 48. Re3 c3 49. bxc3 bxc3 0-1

[Event "Pan American-ch U12"]
[Site "Villa Giardino"]
[Date "2002.05.28"]
[Round "5"]
[White "Vargas, Johann"]
[Black "Martinez Sandoval, David"]
[Result "1-0"]
[ECO "B24"]
[PlyCount "139"]
[EventDate "2002.05.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 e5 4. d3 Be7 5. Nge2 Nf6 6. Bg2 0-0 7. 0-0 d6 8. h3 h6 9. f4 Rb8 10. a4 a6 11. g4 exf4 12. Nxf4 b5 13. axb5 axb5 14. Ncd5 c4 15. d4 Re8 16. c3 Bb7 17. Nxf6+ Bxf6 18. Nh5 Be7 19. Qf3 Rf8 20. Be3 Qd7 21. Ng3 b4 22. Nf5 Kh7 23. h4 Rg8 24. g5 Nd8 25. gxh6 g6 26. Nxe7 Qxe7 27. Bg5 Qe8 28. Bxd8 Qxd8 29. Qxf7+ Kxh6 30. Qf4+ Kh7 31. Qg5 Qe8 32. Rf4 bxc3 33. bxc3 Bc6 34. Ra7+ Rg7 35. Rxg7+ Kxg7 36. Qf6+ Kh7 37. Qf7+ Qxf7 38. Rxf7+ Kh6 39. Rc7 Bb5 40. e5 dxe5 41. dxe5 Re8 42. Rc5 Ba6 43. Kf2 Kh5 44. Kg3 Kh6 45. Bf3 Kg7 46. Ra5 Bc8 47. Ra8 Rf8 48. Bg4 Bxg4 49. Rxf8 Kxf8 50. Kxg4 Kf7 51. Kg5 Ke6 52. Kxg6 Kxe5 53. h5 Ke4 54. h6 Kd3 55. h7 Kxc3 56. h8Q+ Kd3 57. Qh3+ Kd2 58. Qg2+ Kd3 59. Qd5+ Kc3 60. Kf5 Kb4 61. Qd2+ c3 62. Qc2 Kc4 63. Ke4 Kb4 64. Kd4 Kb5 65. Qxc3 Kb6 66. Qc5+ Kb7 67. Kd5 Ka6 68. Qb4 Ka7 69. Kc6 Ka6 70. Qb6# 1-0

[Event "Pan American-ch U12"]
[Site "Villa Giardino"]
[Date "2002.05.26"]
[Round "3"]
[White "Aguirre, Victor Hugo"]
[Black "Martinez Sandoval, David"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "53"]
[EventDate "2002.05.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 d5 4. e3 Be7 5. h3 0-0 6. Bd3 Nbd7 7. 0-0 c5 8. c3 b6 9. Nbd2 Bb7 10. Re1 Ne4 11. Ne5 f6 12. Nxd7 Qxd7 13. f3 Nxd2 14. Qxd2 f5 15. Bg3 Rae8 16. Rad1 cxd4 17. exd4 Bf6 18. Be5 Bxe5 19. Rxe5 h6 20. Rde1 Rf7 21. Qe2 Rfe7 22. Bxf5 Bc8 23. Bd3 Bb7 24. Bg6 Rf8 25. Rxe6 Rxe6 26. Qxe6+ Qxe6 27. Rxe6 1-0

[Event "Pan American-ch U12"]
[Site "Villa Giardino"]
[Date "2002.05.25"]
[Round "2"]
[White "Martinez Sandoval, David"]
[Black "Surco, Ronny"]
[Result "1-0"]
[ECO "A41"]
[PlyCount "53"]
[EventDate "2002.05.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. d4 Nc6 2. Nf3 d6 3. g3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg2 Nb4 7. Nxe5 Nxc2+ 8. Kd2 Nxa1 9. Nxf7+ Ke7 10. Nxh8 Bf5 11. Nc3 Rd8+ 12. Nd5+ Ke6 13. e4 Bb4+ 14. Ke2 Nf6 15. exf5+ Kxf5 16. Bh3+ Ng4 17. Ne3+ Kf6 18. Nxg4+ Ke6 19. Nh6+ Kd5 20. Rd1+ Kc4 21. Rxd8 c5 22. Nf5 Kb5 23. Bg2 b6 24. Nd6+ Ka4 25. Ra8 a5 26. Bc6+ b5 27. Bxb5# 1-0

[Event "Pan American-ch U12"]
[Site "Villa Giardino"]
[Date "2002.05.24"]
[Round "1"]
[White "Tamayo, Jorge"]
[Black "Martinez Sandoval, David"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2111"]
[PlyCount "61"]
[EventDate "2002.05.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[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 bxa4 14. Bc4 Kh8 15. h4 Bh6 16. g4 Bf4 17. Rxa4 a5 18. g5 Bd7 19. Ra1 Rb8 20. b3 Re8 21. Qh5 g6 22. Qe2 Be6 23. Nf6 Re7 24. h5 Qc8 25. Ba6 Qc7 26. Nxh7 Nb4 27. cxb4 Qc3+ 28. Kf1 Bh3+ 29. Kg1 Kxh7 30. Bd3 Rc7 31. Rxh3 1-0

[Event "Wch U10"]
[Site "Oropesa del Mar"]
[Date "2001.10.25"]
[Round "5"]
[White "Sismanis, Aggelos"]
[Black "Martinez Sandoval, David"]
[Result "1-0"]
[ECO "E93"]
[WhiteElo "2094"]
[PlyCount "57"]
[EventDate "2001.10.21"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ESP"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. d5 Nbd7 8. Be3 Nc5 9. Nd2 Qe7 10. b4 Ncd7 11. 0-0 a6 12. Nb3 b6 13. a4 Rb8 14. f3 Nh5 15. Qc2 Nf4 16. Bd1 f5 17. Ne2 Nxe2+ 18. Bxe2 Nf6 19. Rac1 f4 20. Bf2 Bd7 21. Nd2 Rbc8 22. c5 b5 23. c6 Be8 24. axb5 axb5 25. Ba7 Ra8 26. Ra1 Bf7 27. Bxb5 Rfe8 28. Be2 Red8 29. b5 1-0

[Event "Wch U10"]
[Site "Oropesa del Mar"]
[Date "2001.10.24"]
[Round "4"]
[White "Martinez Sandoval, David"]
[Black "Benassayag, Lucas"]
[Result "1/2-1/2"]
[ECO "C97"]
[PlyCount "108"]
[EventDate "2001.10.21"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ESP"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. d5 c4 13. Nbd2 Nb7 14. Nf1 Nc5 15. Ng3 a5 16. Nh2 b4 17. cxb4 axb4 18. b3 cxb3 19. Bxb3 Ba6 20. Bc2 Bc4 21. Bd2 Rfb8 22. Qb1 b3 23. axb3 Rxa1 24. Qxa1 Bxb3 25. Bxb3 Nxb3 26. Qc3 Qxc3 27. Bxc3 Rc8 28. Bb4 Rc4 29. Ba3 g6 30. Nf3 Nc5 31. Nd2 Rc2 32. Bxc5 Rxc5 33. Nb3 Rc2 34. Rc1 Rxc1+ 35. Nxc1 Bd8 36. Nb3 Bb6 37. Kf1 Kg7 38. f3 Kh6 39. Ke2 Kg5 40. Kd3 Bf2 41. Ne2 Nd7 42. Kc4 Nc5 43. Nxc5 Bxc5 44. g3 f5 45. f4+ Kf6 46. exf5 gxf5 47. fxe5+ Kxe5 48. Nf4 Be3 49. Ne6 h6 50. Nd8 Kf6 51. Nb7 Kf7 52. Kd3 Bf2 53. g4 fxg4 54. hxg4 Bg3 1/2-1/2

[Event "Wch U10"]
[Site "Oropesa del Mar"]
[Date "2001.10.21"]
[Round "1"]
[White "Alaverdyan, Argam"]
[Black "Martinez Sandoval, David"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "79"]
[EventDate "2001.10.21"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ESP"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Nd5 Nxd5 8. exd5 Ne7 9. Be3 a6 10. Nc3 Nf5 11. Qd3 Nxe3 12. Qxe3 Be7 13. Bd3 0-0 14. 0-0 Bg5 15. Qg3 Bf4 16. Qf3 Bd7 17. Ne4 Qe7 18. Qh5 g6 19. Qf3 f5 20. Ng3 Bxg3 21. fxg3 e4 22. Qe2 Qe5 23. Bc4 Qd4+ 24. Kh1 Rac8 25. Bb3 Bb5 26. Qf2 e3 27. Qf4 Qxf4 28. Rxf4 e2 29. c4 Bd7 30. Re1 Rfe8 31. Rf2 Re4 32. Rfxe2 Rce8 33. Rxe4 fxe4 34. Bc2 e3 35. Kg1 g5 36. Kf1 h5 37. Ke2 Bg4+ 38. Kd3 Bf5+ 39. Kc3 Bd7 40. Kd4 1-0

[Event "Pan American-ch U10"]
[Site "Guaymallen"]
[Date "2001.06.05"]
[Round "8"]
[White "Martinez Sandoval, David"]
[Black "Perez Ponsa, Federico"]
[Result "0-1"]
[ECO "A46"]
[PlyCount "81"]
[EventDate "2001.05.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. b3 b6 7. Bb2 Bb7 8. Nbd2 Nbd7 9. Re1 c5 10. c3 Ne4 11. Qc2 Nxd2 12. Qxd2 Nf6 13. Qc2 cxd4 14. Nxd4 Bxg2 15. Kxg2 Qd7 16. e4 e5 17. Nf3 Rac8 18. Red1 Rfe8 19. Rd2 Re6 20. Rad1 Rd8 21. c4 Qc6 22. Re1 b5 23. Nxe5 Qe8 24. Nf3 bxc4 25. bxc4 Rxe4 26. Rxe4 Qxe4 27. Qxe4 Nxe4 28. Re2 Bxb2 29. Rxe4 Kf8 30. Rf4 Re8 31. Ng5 f6 32. Nxh7+ Kg7 33. Ng5 Bc1 34. Rd4 Bxg5 35. Rxd6 Rc8 36. Rd7+ Kh6 37. Rxa7 Rxc4 38. f4 Bxf4 39. gxf4 Rxf4 40. h3 Re4 41. a4 0-1

[Event "Pan American-ch U10"]
[Site "Guaymallen"]
[Date "2001.06.04"]
[Round "7"]
[White "Barrelier, Nicolas"]
[Black "Martinez Sandoval, David"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "45"]
[EventDate "2001.05.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[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 b5 10. Nd5 Bg7 11. c3 Ne7 12. Nxe7 Qxe7 13. Bd3 0-0 14. Nc2 f5 15. Ne3 f4 16. Nd5 Qb7 17. Qf3 Be6 18. g3 Bxd5 19. exd5 h6 20. gxf4 exf4 21. Rg1 Rfe8+ 22. Kd2 f6 23. Qxf4 1-0

[Event "Pan American-ch U10"]
[Site "Guaymallen"]
[Date "2001.06.03"]
[Round "6"]
[White "Martinez Sandoval, David"]
[Black "Jimenez Mier, Yeltsin"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "91"]
[EventDate "2001.05.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. g3 Nc6 4. Bg2 e6 5. 0-0 Bd6 6. b3 0-0 7. Bb2 h6 8. Nbd2 Bd7 9. c4 b6 10. Qc2 Nb4 11. Qd1 c5 12. a3 Nc6 13. e3 Re8 14. Qc2 Qc7 15. Rfe1 e5 16. dxe5 Nxe5 17. Nxe5 Bxe5 18. cxd5 Bxb2 19. Qxb2 Qe5 20. Qxe5 Rxe5 21. Nc4 Re7 22. d6 Ree8 23. Bxa8 Rxa8 24. Ne5 Be6 25. b4 cxb4 26. axb4 a5 27. bxa5 bxa5 28. Red1 Ra7 29. Nc6 Ra6 30. Nxa5 Bd7 31. Nb7 Rb6 32. Nc5 Rc6 33. Nxd7 Nxd7 34. Ra7 Nf6 35. d7 Nxd7 36. Rdxd7 Kh7 37. Rxf7 Kg6 38. Rxg7+ Kf5 39. Kg2 Rg6 40. Raf7+ Rf6 41. Rxf6+ Kxf6 42. Rc7 Kg6 43. Kf3 h5 44. Kf4 h4 45. Rc6+ Kh5 46. g4# 1-0

[Event "Pan American-ch U10"]
[Site "Guaymallen"]
[Date "2001.06.01"]
[Round "4"]
[White "Martinez Sandoval, David"]
[Black "Teodorovicz, Thomaz"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "46"]
[EventDate "2001.05.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bc4 g6 4. 0-0 Bg7 5. d3 d6 6. c3 Nf6 7. Be3 b6 8. Nbd2 0-0 9. Re1 Ng4 10. Bf4 Nge5 11. Nxe5 Nxe5 12. Bd5 Rb8 13. d4 cxd4 14. cxd4 Nd3 15. Be3 Nxe1 16. Qxe1 Bb7 17. Bb3 Rc8 18. h3 Qc7 19. Qe2 Qd7 20. Bc4 Rc7 21. Bd3 Rfc8 22. Nb3 d5 23. e5 e6 0-1

[Event "Pan American-ch U10"]
[Site "Guaymallen"]
[Date "2001.05.31"]
[Round "3"]
[White "Martinez Sandoval, David"]
[Black "Sartori, C Sergio M"]
[Result "0-1"]
[ECO "A41"]
[PlyCount "56"]
[EventDate "2001.05.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 Bg4 3. c4 Bxf3 4. exf3 Nd7 5. Nc3 g6 6. Be3 Bg7 7. Bd3 e5 8. d5 Ngf6 9. 0-0 0-0 10. Qd2 Re8 11. Rfe1 Nh5 12. Re2 f5 13. Qc2 Nhf6 14. Bd2 c6 15. Rae1 Rc8 16. dxc6 bxc6 17. a3 d5 18. cxd5 cxd5 19. Qb1 e4 20. fxe4 dxe4 21. Bb5 Qc7 22. h3 Red8 23. Be3 Rb8 24. Ba4 Nh5 25. Bd2 Nc5 26. Qa2+ Qf7 27. Qxf7+ Kxf7 28. b4 Bxc3 0-1

[Event "Pan American-ch U10"]
[Site "Guaymallen"]
[Date "2001.05.30"]
[Round "2"]
[White "Colmenares, Pedro"]
[Black "Martinez Sandoval, David"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "66"]
[EventDate "2001.05.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bc4 Nf6 5. d3 h6 6. 0-0 0-0 7. a3 d6 8. h3 Bd7 9. Bd2 Qe7 10. Be3 Bxe3 11. fxe3 Rfe8 12. Re1 Be6 13. Bxe6 Qxe6 14. Nb5 Qd7 15. d4 Nxe4 16. Nc3 Nxc3 17. bxc3 exd4 18. cxd4 Re7 19. Nh4 Rae8 20. Qd2 b6 21. c4 Na5 22. Qd3 Qa4 23. Rab1 Qxc4 24. Nf5 Qxd3 25. Nxe7+ Rxe7 26. Red1 Qxa3 27. Ra1 Qxe3+ 28. Kh2 Qg5 29. Re1 Rxe1 30. Rxe1 Qf4+ 31. Kg1 Qxd4+ 32. Kh2 Nc4 33. g4 Qf2+ 0-1

[Event "Pan American-ch U10"]
[Site "Guaymallen"]
[Date "2001.05.29"]
[Round "1"]
[White "Vera, Deivy"]
[Black "Martinez Sandoval, David"]
[Result "1-0"]
[ECO "C47"]
[PlyCount "82"]
[EventDate "2001.05.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bc5 6. Nf5 0-0 7. Bc4 d6 8. Ng3 Re8 9. 0-0 Bg4 10. Qd2 Bb4 11. f3 Be6 12. Bxe6 fxe6 13. Qd1 Bxc3 14. bxc3 d5 15. Qe2 dxe4 16. fxe4 Qd6 17. Be3 Rad8 18. Kh1 Qe5 19. Bd2 Rd7 20. Rf3 Red8 21. Bf4 Qa5 22. h3 h6 23. Qc4 Re7 24. Raf1 Nh7 25. Nf5 Kh8 26. Nxe7 Nxe7 27. Qxc7 Qxc7 28. Bxc7 Rc8 29. Be5 Ng6 30. Bh2 Ng5 31. Re3 Rc4 32. e5 Ra4 33. Rb1 b6 34. Rb2 Nf7 35. g4 Ra5 36. Rb4 Rxa2 37. Rc4 Rxc2 38. Rc7 Ng5 39. Rxa7 Nh4 40. Ra1 Ng6 41. Rb1 Nh4 1-0

[Event "Pan American-ch U10"]
[Site "Guaymallen"]
[Date "2001.01.02"]
[Round "5"]
[White "Colque, Luis Andre"]
[Black "Martinez Sandoval, David"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "116"]
[EventDate "2001.05.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nc6 3. Nf3 d6 4. d4 cxd4 5. Nxd4 e5 6. Nxc6 bxc6 7. Bc4 Nf6 8. f3 Qb6 9. Qb3 Qxb3 10. Bxb3 Ba6 11. Bg5 Be7 12. Nd2 0-0 13. a4 Rad8 14. Bc4 Bxc4 15. Nxc4 h6 16. Bh4 g5 17. Bg3 Nh5 18. Bf2 Nf4 19. 0-0 f6 20. Rfe1 Nd3 21. Red1 Nxf2 22. Kxf2 d5 23. Nd2 Rd7 24. exd5 cxd5 25. c4 Rfd8 26. Ke2 d4 27. Kd3 Bc5 28. Nb3 Be7 29. Na5 Rc7 30. g4 Rb8 31. Rdb1 Rb4 32. Kc2 Rc5 33. Nb3 Rcxc4+ 34. Kd3 Rxa4 35. Rxa4 Rxa4 36. Nd2 Rb4 37. b3 Kf7 38. Nc4 Rb5 39. h3 a5 40. Rb2 Ke6 41. Ke4 Bb4 42. Kd3 Bc3 43. Rb1 a4 44. Kc2 Rxb3 45. Rxb3 axb3+ 46. Kxb3 f5 47. Nb2 Bxb2 48. Kxb2 fxg4 49. hxg4 Kd5 50. Kc2 e4 51. fxe4+ Kxe4 52. Kd2 Kf4 53. Kd3 Kxg4 54. Kxd4 Kf3 55. Ke5 g4 56. Kf5 g3 57. Kg6 g2 58. Kxh6 g1Q 0-1

