[Event "Los Angeles PSW op 49th"]
[Site "Los Angeles"]
[Date "2009.07.05"]
[Round "6"]
[White "Chapa, Eric"]
[Black "Khachiyan, Melikset"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "2183"]
[BlackElo "2516"]
[PlyCount "76"]
[EventDate "2009.07.03"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "CBM 131 Extra"]
[Source "ChessBase"]
[SourceDate "2009.09.03"]
[SourceVersion "2"]
[SourceVersionDate "2009.09.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 0-0 9. Be2 Nc6 10. d5 Ne5 11. Nxe5 Bxe5 12. Qd2 e6 13. c4 exd5 14. cxd5 f5 15. exf5 Rxf5 16. Bb2 Qh4 17. Bd3 c4 18. g3 Qe7 19. Bxf5 c3 20. Be6+ Bxe6 21. Bxc3 Bxc3 22. Qxc3 Bxd5+ 23. Kd2 Qd8 24. Rhd1 Rc8 25. Qa3 Bxa2+ 26. Ke1 Qe8+ 27. Kf1 Bxb1 28. Rxb1 Qe4 29. Qb3+ Rc4 30. f3 Qc6 31. Qxb7 Rc1+ 32. Kg2 Qc2+ 33. Kh3 Qf5+ 34. g4 Rxb1 35. Qa8+ Qf8 36. Qd5+ Qf7 37. Qd8+ Kg7 38. Qd4+ Qf6 0-1

[Event "Los Angeles PSW op 49th"]
[Site "Los Angeles"]
[Date "2009.07.05"]
[Round "5"]
[White "Tatum, Kofi Odell"]
[Black "Chapa, Eric"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "2014"]
[BlackElo "2183"]
[PlyCount "76"]
[EventDate "2009.07.03"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "CBM 131 Extra"]
[Source "ChessBase"]
[SourceDate "2009.09.03"]
[SourceVersion "2"]
[SourceVersionDate "2009.09.16"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc7 6. 0-0 Nc6 7. b3 e5 8. Bb2 f6 9. Nc3 Be7 10. Rc1 0-0 11. d3 Bg4 12. h3 Be6 13. Ne4 b6 14. Qd2 Qd7 15. Kh2 Rac8 16. Rfd1 Rfd8 17. Ne1 h6 18. f4 f5 19. Nf2 exf4 20. gxf4 Nd5 21. e3 Bd6 22. Kh1 Qe7 23. Nf3 Bf7 24. Re1 Re8 25. d4 Nxe3 26. d5 Nb4 27. Qc3 Qf6 28. Qd2 Qe7 29. Qc3 Qf6 30. Qd2 Qg6 31. Rxe3 Rxe3 32. Qxe3 Nxd5 33. Qe1 Nxf4 34. Qf1 Re8 35. Re1 Rxe1 36. Nxe1 Qg3 37. Nf3 Bd5 38. Nd1 Nxg2 0-1

[Event "Los Angeles PSW op 49th"]
[Site "Los Angeles"]
[Date "2009.07.04"]
[Round "4"]
[White "Chapa, Eric"]
[Black "Zhang, Eric"]
[Result "1-0"]
[ECO "D87"]
[WhiteElo "2183"]
[BlackElo "1859"]
[PlyCount "67"]
[EventDate "2009.07.03"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "CBM 131 Extra"]
[Source "ChessBase"]
[SourceDate "2009.09.03"]
[SourceVersion "2"]
[SourceVersionDate "2009.09.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 0-0 8. Ne2 c5 9. Be3 Nc6 10. Rc1 Qa5 11. Kf1 Rd8 12. h4 e6 13. h5 b5 14. Bb3 Ba6 15. hxg6 hxg6 16. Kg1 Rac8 17. Bg5 Rd7 18. Qd2 cxd4 19. Qf4 d3 20. Bf6 Ne7 21. Qh4 Kf8 22. Bxg7+ Kxg7 23. Qh6+ Kf6 24. Qf4+ Kg7 25. Qh6+ Kf6 26. Qf4+ Kg7 27. Qe5+ Kf8 28. Nf4 Ng8 29. Nxe6+ fxe6 30. Qxe6 Rg7 31. Rh3 Ne7 32. Rh8+ Ng8 33. Rxg8+ Rxg8 34. Qf7# 1-0

[Event "Los Angeles PSW op 49th"]
[Site "Los Angeles"]
[Date "2009.07.04"]
[Round "3"]
[White "Donaldson, John W"]
[Black "Chapa, Eric"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "2394"]
[BlackElo "2183"]
[PlyCount "45"]
[EventDate "2009.07.03"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "CBM 131 Extra"]
[Source "ChessBase"]
[SourceDate "2009.09.03"]
[SourceVersion "2"]
[SourceVersionDate "2009.09.16"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. g3 Nc6 6. Bg2 Nc7 7. Qa4 Qd7 8. 0-0 e5 9. a3 f6 10. e3 Be7 11. Rd1 Qd3 12. b4 cxb4 13. axb4 Bd7 14. b5 Nd8 15. Ba3 Nxb5 16. Bxe7 Kxe7 17. Nxb5 Qxb5 18. Qa3+ Ke8 19. d4 e4 20. Nd2 f5 21. Rdc1 Nf7 22. Bf1 Qd5 23. Bc4 1-0

[Event "USA-chT Amateur West"]
[Site "San Pedro"]
[Date "2006.02.19"]
[Round "4"]
[White "Lee, Andy C"]
[Black "Chapa, Eric"]
[Result "1-0"]
[ECO "D89"]
[WhiteElo "2265"]
[BlackElo "2214"]
[PlyCount "51"]
[EventDate "2006.02.18"]
[EventType "team"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 0-0 9. 0-0 Nc6 10. Be3 Bg4 11. f3 Na5 12. Bd3 cxd4 13. cxd4 Be6 14. d5 Bxa1 15. Qxa1 f6 16. Kh1 Bd7 17. Bh6 Re8 18. e5 Rc8 19. Nf4 Nc4 20. e6 Ba4 21. Nxg6 hxg6 22. Bxg6 Qa5 23. Bf7+ Kh8 24. Qd4 Bc2 25. Qh4 Bh7 26. Bd2 1-0

[Event "Los Angeles"]
[Site "Los Angeles"]
[Date "1992.??.??"]
[Round "?"]
[White "Chapa, Eric"]
[Black "Boctor, Wageeh"]
[Result "0-1"]
[ECO "D20"]
[WhiteElo "2220"]
[BlackElo "2220"]
[PlyCount "62"]
[EventDate "1992.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "2"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e4 e5 4. Nf3 exd4 5. Qxd4 Qxd4 6. Nxd4 Nf6 7. f3 Bc5 8. Nb5 Na6 9. Bxc4 c6 10. N5c3 Nb4 11. Na3 b5 12. Be2 Be6 13. Bg5 0-0-0 14. Rc1 Kb7 15. Ncxb5 Bb6 16. e5 h6 17. Bxf6 gxf6 18. Nd6+ Kb8 19. Ndc4 Bd4 20. exf6 Rhe8 21. Kf1 Nxa2 22. Rd1 Bxf6 23. Nd6 Re7 24. Nac4 Red7 25. Kf2 Be7 26. Ra1 Bxd6 27. Rxa2 Bc5+ 28. Kg3 Rg8+ 29. Kf4 Bxc4 30. Bxc4 Rd4+ 31. Ke5 Rg5+ 0-1

[Event "Los Angeles"]
[Site "Los Angeles"]
[Date "1992.??.??"]
[Round "?"]
[White "Chapa, Eric"]
[Black "Brooks, Michael A"]
[Result "1/2-1/2"]
[ECO "A53"]
[WhiteElo "2220"]
[BlackElo "2440"]
[PlyCount "112"]
[EventDate "1992.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "2"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. d5 Nc5 6. f3 a5 7. Be3 Be7 8. Nge2 h6 9. Qd2 Nh7 10. g4 Bg5 11. Ng3 Bxe3 12. Qxe3 Qh4 13. Nb5 Kd8 14. 0-0-0 g6 15. Be2 Bd7 16. f4 exf4 17. Qxf4 Bxb5 18. cxb5 Qg5 19. Rhf1 Ke7 20. h4 Qxf4+ 21. Rxf4 Nd7 22. Rf3 Ne5 23. Rc3 Rhc8 24. Rh1 Nf6 25. h5 Nfxg4 26. Rh4 Nf6 27. hxg6 fxg6 28. Rxh6 Kf7 29. Bd3 c5 30. dxc6 bxc6 31. bxc6 Rxc6 32. Rxc6 Nxc6 33. Bc4+ Kg7 34. Rh2 Ne5 35. Rc2 Kh6 36. Kd2 Kg5 37. Ke3 Rc8 38. Bd3 Nfg4+ 39. Ke2 Rh8 40. Nf1 Rh1 41. Rd2 Rg1 42. Bb5 Rg2+ 43. Kd1 Rxd2+ 44. Nxd2 Kf4 45. Ke2 Nf6 46. Nb3 g5 47. Nxa5 g4 48. Nc4 Nf3 49. Nxd6 g3 50. Kf1 Ng4 51. Nf5 Nd2+ 52. Kg2 Nxe4 53. Nxg3 Ne3+ 54. Kh2 Nxg3 55. Bc6 Ngf1+ 56. Kh3 Nd2 1/2-1/2

[Event "Los Angeles"]
[Site "Los Angeles"]
[Date "1992.??.??"]
[Round "?"]
[White "Chapa, Eric"]
[Black "Lucky, David N"]
[Result "0-1"]
[ECO "A32"]
[WhiteElo "2220"]
[BlackElo "2240"]
[PlyCount "50"]
[EventDate "1992.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "2"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. g3 cxd4 5. Nxd4 a6 6. Bg2 Qc7 7. b3 Bb4+ 8. Kf1 0-0 9. Bb2 d5 10. cxd5 exd5 11. Nd2 Qe7 12. N2f3 Re8 13. Rc1 Ba3 14. Bxa3 Qxa3 15. Rc2 Nc6 16. Nxc6 bxc6 17. Qc1 Qe7 18. Nd4 Bd7 19. e3 Rac8 20. Nxc6 Bxc6 21. Rxc6 Qd7 22. Rxc8 Rxc8 23. Qb1 Qb5+ 24. Ke1 d4 25. Bh3 Rc3 0-1

[Event "Los Angeles"]
[Site "Los Angeles"]
[Date "1992.??.??"]
[Round "?"]
[White "Chapa, Eric"]
[Black "Schroer, Jonathan"]
[Result "1/2-1/2"]
[ECO "E69"]
[WhiteElo "2220"]
[BlackElo "2395"]
[PlyCount "104"]
[EventDate "1992.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "2"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nbd7 7. Nc3 e5 8. e4 c6 9. h3 Qb6 10. d5 Nc5 11. Re1 Bd7 12. Rb1 cxd5 13. cxd5 a5 14. Bf1 Ne8 15. Be3 f5 16. Nd2 f4 17. Nc4 Qc7 18. gxf4 exf4 19. Bd4 b5 20. Bxg7 Nxg7 21. Nd2 Rab8 22. Rc1 Qd8 23. Nf3 b4 24. Nb1 Rc8 25. Nbd2 Re8 26. Kh2 Qf6 27. b3 g5 28. e5 dxe5 29. Rxc5 Rxc5 30. Ne4 Qb6 31. Nxc5 Qxc5 32. Qd2 Qc3 33. Qxc3 bxc3 34. Rc1 g4 35. hxg4 Bxg4 36. Rxc3 Nf5 37. Nd2 e4 38. Nxe4 Rxe4 39. f3 Rd4 40. fxg4 Ne3 41. Bc4 Nxg4+ 42. Kg2 Ne3+ 43. Kf3 Kf7 44. Rd3 Rxd3 45. Bxd3 Nxd5 46. Bxh7 Ke7 47. Be4 Nc3 48. a3 Nb5 49. b4 a4 50. Kxf4 Nxa3 51. Bc6 Nc2 52. Bxa4 Nxb4 1/2-1/2

[Event "Los Angeles"]
[Site "Los Angeles"]
[Date "1992.??.??"]
[Round "?"]
[White "Chapa, Eric"]
[Black "Strayer, Geofrey"]
[Result "0-1"]
[ECO "E81"]
[WhiteElo "2220"]
[BlackElo "2310"]
[PlyCount "32"]
[EventDate "1992.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "2"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Bg5 Nc6 7. d5 Ne5 8. f4 Ned7 9. Bd3 c6 10. Nf3 Qb6 11. Qd2 Nc5 12. Rb1 Bg4 13. b4 Nxd3+ 14. Qxd3 cxd5 15. Nxd5 Nxd5 16. cxd5 Rac8 0-1

[Event "Los Angeles"]
[Site "Los Angeles"]
[Date "1992.??.??"]
[Round "?"]
[White "Duckworth, William Mark"]
[Black "Chapa, Eric"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2295"]
[BlackElo "2220"]
[PlyCount "60"]
[EventDate "1992.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "2"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 c5 3. Nc3 cxd4 4. Qxd4 Nc6 5. Qh4 d6 6. 0-0-0 Be6 7. e4 Qa5 8. Nf3 a6 9. Kb1 Rc8 10. a3 b5 11. Nd4 b4 12. Nxc6 Rxc6 13. axb4 Qxb4 14. e5 Qxh4 15. Bxh4 dxe5 16. Be2 Bf5 17. Rhe1 e6 18. Bf3 Rc4 19. Bg3 e4 20. Be2 Rc6 21. Nb5 Bb4 22. Nd4 Rc8 23. Bxa6 0-0 24. Bxc8 Rxc8 25. c3 Bc5 26. Nxf5 exf5 27. h3 Nh5 28. Rd5 Nxg3 29. fxg3 g6 30. g4 Re8 1-0

[Event "Los Angeles"]
[Site "Los Angeles"]
[Date "1992.??.??"]
[Round "?"]
[White "Hanley, Joe"]
[Black "Chapa, Eric"]
[Result "1-0"]
[ECO "C11"]
[BlackElo "2220"]
[PlyCount "59"]
[EventDate "1992.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "2"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 f6 7. exf6 Nxf6 8. 0-0 cxd4 9. cxd4 Bd6 10. Nc3 0-0 11. Re1 Bd7 12. a3 Rac8 13. Bd3 Na5 14. Bc2 Nc4 15. Rb1 Qc7 16. Bg5 Nxa3 17. bxa3 Qxc3 18. Rc1 Qxa3 19. Bxf6 Rxf6 20. Bxh7+ Kxh7 21. Rxc8 Bxc8 22. Qc2+ Kh6 23. Qxc8 Qa6 24. Qh8+ Kg6 25. Qe8+ Kh7 26. Ng5+ Kh6 27. h4 Bf8 28. g4 g6 29. Nxe6 Qa5 30. Nxf8 1-0

[Event "Los Angeles"]
[Site "Los Angeles"]
[Date "1992.??.??"]
[Round "?"]
[White "Longren, William B"]
[Black "Chapa, Eric"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "2305"]
[BlackElo "2220"]
[PlyCount "94"]
[EventDate "1992.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "2"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[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. b4 Bg5 14. a4 bxa4 15. Rxa4 a5 16. b5 Ne7 17. Nce3 Bxe3 18. Nxe3 Qc7 19. Bc4 Bb7 20. Qg4 d5 21. exd5 Bxd5 22. 0-0 Bb7 23. Rd1 Rbd8 24. Raa1 g6 25. Rxd8 Rxd8 26. Qg5 Rd6 27. Bf1 f6 28. Qh4 Qxc3 29. Qa4 Rd2 30. Qc4+ Qxc4 31. Nxc4 Rc2 32. Rxa5 Nc8 33. f3 Kf7 34. Ra3 Ke7 35. Bd3 Rc1+ 36. Kf2 Kd7 37. g4 Kc7 38. g5 fxg5 39. Nxe5 Nd6 40. Ng4 Kb6 41. Nf6 Rc7 42. Ng4 Nxb5 43. Rb3 Ba6 44. Kg3 Rf7 45. Ne5 Re7 46. f4 Kc5 47. Nf3 gxf4+ 1/2-1/2

[Event "Los Angeles"]
[Site "Los Angeles"]
[Date "1992.??.??"]
[Round "?"]
[White "Thinnsen, James A"]
[Black "Chapa, Eric"]
[Result "1/2-1/2"]
[ECO "D91"]
[WhiteElo "2340"]
[BlackElo "2220"]
[PlyCount "120"]
[EventDate "1992.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "2"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bg5 Ne4 6. Bf4 Nxc3 7. bxc3 dxc4 8. Qa4+ Nc6 9. e4 0-0 10. Bxc4 Bg4 11. Bd5 Bxf3 12. gxf3 e5 13. Bxc6 bxc6 14. Be3 exd4 15. Bxd4 f5 16. Rd1 Bxd4 17. Qc4+ Kh8 18. Qxd4+ Qxd4 19. Rxd4 fxe4 20. fxe4 Rf3 21. Rc4 Raf8 22. 0-0 R8f6 23. Kg2 R3f4 24. h3 Rd6 25. f3 Kg7 26. Kg3 g5 27. Rd4 c5 28. Rc4 Rc6 29. Rd1 h6 30. Rd5 Rcf6 31. Rd3 Rc6 32. Ra4 c4 33. Re3 a6 34. Ra5 Kf7 35. Re5 Kf6 36. Rd5 Ke7 37. Re2 Rcf6 38. Rf2 Rc6 39. a4 Kf7 40. a5 Kg6 41. Rf1 Kf7 42. Kf2 Kg6 43. Ke3 Kh5 44. Rg1 Rcf6 45. Rg3 Kh4 46. Rg4+ Kxh3 47. Rxf4 Rxf4 48. Rf5 Kg3 49. Rxf4 gxf4+ 50. Ke2 Kh4 51. Kf2 Kg5 52. Kg2 Kh4 53. Kh2 Kh5 54. Kh3 Kg6 55. e5 Kf5 56. Kh4 Kxe5 57. Kh5 Kd5 58. Kxh6 Kc5 59. Kg5 Kb5 60. Kxf4 Kxa5 1/2-1/2

[Event "US Open-92"]
[Site "Los Angeles"]
[Date "1991.??.??"]
[Round "?"]
[White "Alburt, Lev O"]
[Black "Chapa, Eric"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2535"]
[BlackElo "2245"]
[PlyCount "67"]
[EventDate "1991.07.28"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Be3 c5 8. Qd2 Qa5 9. Rc1 0-0 10. Nf3 Bg4 11. Be2 Nc6 12. d5 Rad8 13. 0-0 Bxf3 14. gxf3 b6 15. Qc2 Nb8 16. Bd2 Nd7 17. Rb1 f5 18. Kg2 f4 19. Bb5 c4 20. Rb4 Ne5 21. Rfb1 a6 22. Ra4 Qxb5 23. Rxb5 axb5 24. Rb4 Rd6 25. Rxb5 g5 26. Qb1 Rff6 27. h3 Ng6 28. Kf1 Ne5 29. Ke2 Rh6 30. a4 Rxh3 31. Rxb6 Rxb6 32. Qxb6 Nxf3 33. a5 Nxd2 34. Qc6 1-0

[Event "US Open-92"]
[Site "Los Angeles"]
[Date "1991.??.??"]
[Round "?"]
[White "Chapa, Eric"]
[Black "Boak, Stephen A"]
[Result "1/2-1/2"]
[ECO "A35"]
[WhiteElo "2245"]
[PlyCount "82"]
[EventDate "1991.07.28"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 cxd4 5. Nxd4 g6 6. Nb3 Bg7 7. e4 d6 8. Be2 0-0 9. 0-0 Be6 10. f3 Nd7 11. Nd5 Bxd5 12. exd5 Qb6+ 13. Kh1 Nb4 14. a3 Na6 15. Rb1 Nac5 16. Nd4 Bxd4 17. Qxd4 Nb3 18. Qxb6 Nxb6 19. Bh6 Rfe8 20. Bd1 Nd4 21. b3 e6 22. dxe6 Rxe6 23. Bd2 a5 24. Re1 a4 25. Rxe6 fxe6 26. bxa4 Nxa4 27. Bxa4 Rxa4 28. Bb4 b5 29. Bxd6 Rxc4 30. h3 Kf7 31. Be5 Nc6 32. Rxb5 Nxe5 33. Rxe5 Rc1+ 34. Kh2 Ra1 35. Re3 Ra2 36. Kg1 Kf6 37. g3 Kf5 38. f4 h6 39. Kf1 g5 40. fxg5 hxg5 41. Ke1 e5 1/2-1/2

[Event "US Open-92"]
[Site "Los Angeles"]
[Date "1991.??.??"]
[Round "?"]
[White "Chapa, Eric"]
[Black "Kus, Chris"]
[Result "0-1"]
[ECO "E81"]
[WhiteElo "2245"]
[PlyCount "46"]
[EventDate "1991.07.28"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Bg5 Nc6 7. d5 Ne5 8. f4 Ned7 9. Nf3 Nc5 10. Qc2 Bg4 11. Be2 c6 12. dxc6 bxc6 13. 0-0-0 Qb6 14. h3 Bd7 15. e5 Bf5 16. Qd2 Nfe4 17. Nxe4 Nxe4 18. Qd4 dxe5 19. Qxb6 axb6 20. g4 Be6 21. Bxe7 Rfe8 22. Bh4 exf4 23. a3 Ra4 0-1

[Event "US Open-92"]
[Site "Los Angeles"]
[Date "1991.??.??"]
[Round "?"]
[White "Cobert, Philip"]
[Black "Chapa, Eric"]
[Result "1-0"]
[ECO "A15"]
[BlackElo "2245"]
[PlyCount "59"]
[EventDate "1991.07.28"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. d3 d6 5. g3 0-0 6. Bg2 e5 7. 0-0 Nc6 8. c4 Nh5 9. Nc3 f5 10. e3 f4 11. a3 a5 12. Nd2 Be6 13. Nd5 Qd7 14. Ne4 Bg4 15. f3 Be6 16. g4 Nf6 17. Ndxf6+ Bxf6 18. exf4 Be7 19. Ng5 exf4 20. Nxe6 Qxe6 21. Re1 Qd7 22. d4 Bf6 23. Qd2 g5 24. Bf1 Qg7 25. Re4 Rae8 26. Rae1 Nxd4 27. Bxd4 Bxd4+ 28. Kg2 Bc3 29. Qd5+ Qf7 30. Rxe8 1-0

[Event "American op"]
[Site "Los Angeles"]
[Date "1989.??.??"]
[Round "4"]
[White "Chapa, Eric"]
[Black "De Firmian, Nick E"]
[Result "0-1"]
[ECO "A32"]
[WhiteElo "2230"]
[BlackElo "2570"]
[PlyCount "124"]
[EventDate "1989.11.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 Nc6 6. Bg2 Qb6 7. Nb5 d5 8. 0-0 a6 9. Be3 Qa5 10. N5c3 dxc4 11. Bxc6+ bxc6 12. Na3 Ng4 13. Nxc4 Qh5 14. h4 Nxe3 15. Nxe3 Be7 16. Ng2 0-0 17. e4 Qa5 18. Rc1 c5 19. Ne3 Rd8 20. Qc2 Rd4 21. b3 Bb7 22. Nc4 Qc7 23. Rfe1 Rad8 24. Re3 h6 25. Rce1 Bc6 26. a4 Ba8 27. Ne2 f5 28. Nf4 Bxe4 29. Rxe4 fxe4 30. Nxe6 Qb7 31. Nxd8 Bxd8 32. Re3 Qd5 33. Qe2 h5 34. Kh2 Bc7 35. Kg2 Kh7 36. Kh3 Kh6 37. Rc3 g6 38. Ne3 Qd6 39. Nc4 Qd5 40. Ne3 Qd6 41. Ng2 Kh7 42. Rc2 Bd8 43. Qe3 Be7 44. Qf4 Kg7 45. Re2 Qxf4 46. Nxf4 Kf6 47. Kg2 Bd6 48. Nh3 Kf5 49. Ng5 Be7 50. Rc2 Rd3 51. Rc4 Rxb3 52. Nxe4 Rb4 53. Nd2 Rxc4 54. Nxc4 Ke4 55. Kf1 Kd4 56. Ne3 Kd3 57. Ke1 c4 58. Kd1 c3 59. Nc2 Bc5 60. f3 Bf2 61. g4 a5 62. gxh5 gxh5 0-1

[Event "American op"]
[Site "Los Angeles"]
[Date "1989.??.??"]
[Round "8"]
[White "Comp Mephisto Lyon"]
[Black "Chapa, Eric"]
[Result "1-0"]
[ECO "B22"]
[BlackElo "2230"]
[PlyCount "89"]
[EventDate "1989.11.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 e6 5. Nf3 Nf6 6. Na3 Qd8 7. Nc2 Nc6 8. Bd3 h6 9. 0-0 a6 10. Ne5 Bd7 11. Qe2 cxd4 12. Nxc6 Bxc6 13. Nxd4 Qd5 14. Nxc6 Qxc6 15. Bf4 Bd6 16. Bxd6 Qxd6 17. Rad1 Qb6 18. Rfe1 0-0 19. Rd2 Rfd8 20. Qe3 Qxe3 21. Rxe3 Kf8 22. Ree2 Rd7 23. Bc2 Rad8 24. Rxd7 Rxd7 25. g3 b6 26. f4 g6 27. Kf2 Nd5 28. h4 h5 29. Rd2 Ke7 30. Be4 Nf6 31. Rxd7+ Kxd7 32. Bd3 a5 33. b4 Kd6 34. bxa5 bxa5 35. Ke3 Kc5 36. Kd2 Kd5 37. Kc2 Ne4 38. c4+ Kd4 39. Bxe4 Kxe4 40. Kc3 f6 41. a3 e5 42. fxe5 Kxe5 43. Kd3 a4 44. Ke3 g5 45. g4 1-0

[Event "American op"]
[Site "Los Angeles"]
[Date "1989.??.??"]
[Round "3"]
[White "Dorsch, Thomas"]
[Black "Chapa, Eric"]
[Result "0-1"]
[ECO "A35"]
[BlackElo "2230"]
[PlyCount "58"]
[EventDate "1989.11.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. Nc3 Nf6 4. e3 g6 5. d4 cxd4 6. exd4 d5 7. cxd5 Nxd5 8. Ne5 Bg7 9. Qf3 Be6 10. Bb5 Qd6 11. Nc4 Qd8 12. Ne3 0-0 13. Bxc6 bxc6 14. 0-0 Rb8 15. Rd1 Qd7 16. h3 Rfd8 17. Ne4 Nxe3 18. fxe3 Bd5 19. Qf4 f5 20. Nc5 Qd6 21. b3 e5 22. Qg3 f4 23. exf4 exd4 24. Ba3 Re8 25. Re1 Re3 26. Qg4 Rbe8 27. Kf2 Rf8 28. g3 h5 29. Qd7 Rxf4+ 0-1

[Event "US Open-89"]
[Site "Boston"]
[Date "1988.??.??"]
[Round "?"]
[White "Chapa, Eric"]
[Black "Rachels, Stuart"]
[Result "0-1"]
[ECO "A64"]
[WhiteElo "2260"]
[BlackElo "2350"]
[PlyCount "60"]
[EventDate "1988.08.07"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 g6 5. Nf3 Bg7 6. g3 0-0 7. Bg2 e6 8. 0-0 exd5 9. cxd5 a6 10. a4 Re8 11. Nd2 Nbd7 12. Re1 Rb8 13. Nc4 Nb6 14. Ne3 Ng4 15. Nxg4 Bxg4 16. a5 Nc8 17. Qd3 Qc7 18. Be3 Bf5 19. Qd2 b5 20. axb6 Nxb6 21. Bh6 Nc4 22. Qf4 Nxb2 23. Bxg7 Kxg7 24. g4 Rb4 25. Qc1 Bxg4 26. Ne4 Qb6 27. Qc3+ Re5 28. f4 c4+ 29. Nf2 Rb3 30. Qa5 Qxa5 0-1

[Event "W-ch M414 corr"]
[Site "ICCF corr"]
[Date "1988.??.??"]
[Round "?"]
[White "De Groot, Adrianus Dingeman"]
[Black "Chapa, Eric"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "13"]
[EventDate "1988.??.??"]
[EventType "tourn (corr)"]
[EventRounds "11"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 e6 5. Nf3 Nf6 6. Na3 Qd8 7. Nc2 1-0

[Event "US Open-89"]
[Site "Boston"]
[Date "1988.??.??"]
[Round "?"]
[White "Giles, Morris"]
[Black "Chapa, Eric"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2330"]
[BlackElo "2260"]
[PlyCount "65"]
[EventDate "1988.08.07"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[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 f5 11. c3 Bg7 12. exf5 Bxf5 13. Nc2 0-0 14. Nce3 Be4 15. Bd3 Bxd5 16. Nxd5 e4 17. Bc2 f5 18. 0-0 Kh8 19. f3 Rg8 20. fxe4 Be5 21. Qh5 Rg5 22. Qh3 Qg8 23. Rad1 f4 24. Nxf4 Qxa2 25. Ne6 Rg6 26. Rf7 h6 27. Rf8+ Rxf8 28. Nxf8 Rf6 29. Nd7 Rg6 30. Rf1 Qxb2 31. Rf8+ Kg7 32. Qf3 Bxh2+ 33. Kxh2 1-0

[Event "Pacific Area tt2 corr8791"]
[Site "corr"]
[Date "1987.??.??"]
[Round "?"]
[White "Chapa, Eric"]
[Black "Eklund"]
[Result "1-0"]
[ECO "E42"]
[PlyCount "83"]
[EventDate "1987.??.??"]
[EventType "team (corr)"]
[EventRounds "10"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2 cxd4 6. exd4 d5 7. a3 Be7 8. c5 b6 9. b4 0-0 10. Bf4 bxc5 11. dxc5 Nc6 12. Nd4 Nxd4 13. Qxd4 Nd7 14. Bb5 e5 15. Qxd5 exf4 16. Qxa8 Bf6 17. 0-0-0 Qc7 18. Qd5 Bxc3 19. Bxd7 a5 20. Bxc8 axb4 21. Bd7 bxa3 22. Ba4 Qa5 23. Qc4 Rb8 24. Rd7 a2 25. Qxf7+ Kh8 26. Qxa2 Qxc5 27. Bc2 f3 28. Qa7 Qg5+ 29. Kd1 Re8 30. g3 Bb2 31. Rd2 Bc3 32. Qd7 Qxd2+ 33. Qxd2 Bxd2 34. Kxd2 Re2+ 35. Kd3 Rxf2 36. Bd1 g6 37. Ke3 Ra2 38. Kxf3 Kg7 39. h4 h5 40. Kf4 Ra5 41. Bc2 Ra2 42. Rc1 1-0

[Event "American op"]
[Site "Los Angeles"]
[Date "1987.??.??"]
[Round "4"]
[White "Shirazi, Kamran"]
[Black "Chapa, Eric"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2455"]
[PlyCount "55"]
[EventDate "1987.11.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. 0-0 Nge7 5. c4 a6 6. Ba4 g6 7. d4 cxd4 8. Nxd4 Bg7 9. Nxc6 Nxc6 10. Nc3 0-0 11. Be3 Na5 12. Qd3 b6 13. b4 Nxc4 14. Qxc4 b5 15. Qd3 bxa4 16. Bd4 Bb7 17. Nxa4 Bc6 18. Bxg7 Kxg7 19. Nc5 d6 20. Nxe6+ fxe6 21. Qc3+ Qf6 22. Qxc6 Rac8 23. Qxa6 Rc2 24. Rad1 Qb2 25. Qb6 Qxa2 26. Qxd6 Rcxf2 27. Qd4+ e5 28. Rxf2 1-0

