[Event "California op"]
[Site "Los Angeles"]
[Date "1993.??.??"]
[Round "?"]
[White "Sierra, Flores"]
[Black "Ameri, Hossein"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "50"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 b6 3. g3 Bb7 4. Bg2 Nd7 5. 0-0 e6 6. b3 c5 7. Bb2 Ngf6 8. dxc5 Bxc5 9. Ba3 Rc8 10. Nfd2 Qe7 11. Bb2 0-0 12. c4 Ng4 13. e3 Nde5 14. Qe2 dxc4 15. Ne4 Bxe4 16. Bxe4 f5 17. Bf3 Qf6 18. Kg2 cxb3 19. axb3 Rc7 20. Nd2 Qh6 21. h3 Nxf3 22. Nxf3 Nf6 23. Rfd1 g5 24. Nd4 Bxd4 25. Rxd4 Rfc8 0-1

[Event "California op"]
[Site "Los Angeles"]
[Date "1993.??.??"]
[Round "?"]
[White "Sierra, Flores"]
[Black "Jackson, David"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "56"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d3 d5 4. exd5 Nxd5 5. Be2 Bd6 6. Nbd2 0-0 7. Nc4 Re8 8. Nxd6 cxd6 9. 0-0 Nc6 10. h3 Re6 11. Nh2 Nd4 12. Bg4 f5 13. Bf3 Nxf3+ 14. Nxf3 f4 15. c3 Rg6 16. Kh2 Bd7 17. Qb3 Bc6 18. Re1 Kh8 19. Rg1 Nb6 20. Qd1 Nd7 21. Ne1 Qf6 22. f3 Qh4 23. Qe2 Qg3+ 24. Kh1 Rh6 25. Qf1 Nf6 26. Bd2 Ng4 27. Bxf4 exf4 28. fxg4 Qxh3# 0-1

[Event "California op"]
[Site "California"]
[Date "1992.??.??"]
[Round "?"]
[White "McCullough, Richard"]
[Black "Sierra, Flores"]
[Result "0-1"]
[ECO "D24"]
[PlyCount "80"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nc3 Nf6 4. Nf3 Nd5 5. Qa4+ Bd7 6. Qxc4 Be6 7. Qb5+ c6 8. Qxb7 Nb6 9. Bf4 Bc8 10. Qc7 Qxc7 11. Bxc7 Na6 12. Bxb6 axb6 13. 0-0-0 f6 14. e3 Be6 15. a3 Bb3 16. Rd3 b5 17. Nb1 Bd5 18. Nfd2 f5 19. f3 b4 20. e4 Be6 21. Be2 Rd8 22. Rd1 g6 23. d5 cxd5 24. Nb3 Bh6+ 25. N1d2 Rc8+ 26. Kb1 dxe4 27. fxe4 bxa3 28. bxa3 Nc5 29. Nxc5 Rxc5 30. Nb3 Rc8 31. Rh3 Bg7 32. Rc1 Rb8 33. Ka2 fxe4 34. g4 h5 35. Rg3 Be5 36. Rh3 Rf8 37. a4 hxg4 38. Re3 Bf4 39. Rcc3 Bxe3 40. Rxe3 Rf7 0-1

[Event "California op"]
[Site "California"]
[Date "1992.??.??"]
[Round "?"]
[White "Pellerin, Robert"]
[Black "Sierra, Flores"]
[Result "1-0"]
[ECO "A80"]
[PlyCount "23"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. e4 dxe4 3. Nc3 f5 4. f3 exf3 5. Nxf3 e6 6. Bc4 Bb4 7. 0-0 Bxc3 8. bxc3 Nf6 9. Ba3 Ne4 10. Ne5 g6 11. Rxf5 exf5 12. Bf7# 1-0

[Event "California op"]
[Site "California"]
[Date "1992.??.??"]
[Round "?"]
[White "Sierra, Flores"]
[Black "Forsberg, H."]
[Result "0-1"]
[ECO "A11"]
[PlyCount "72"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. Nf3 d5 2. e3 Nf6 3. c4 c6 4. a3 Bf5 5. Nc3 e6 6. Qb3 Qc7 7. Nh4 Bg4 8. h3 Bh5 9. g4 Bg6 10. f4 Nbd7 11. d4 Be7 12. Nxg6 hxg6 13. Bg2 dxc4 14. Qxc4 Nb6 15. Qe2 Nfd5 16. g5 Nxc3 17. bxc3 Nd5 18. Qb2 f5 19. Bd2 0-0 20. Rb1 b5 21. Qc1 Nb6 22. Bf1 Bd6 23. c4 bxc4 24. Ba5 Qe7 25. Bxb6 axb6 26. Rxb6 Rxa3 27. Qxc4 Rxe3+ 28. Kf2 Bxf4 29. h4 Ra8 30. Bd3 Ra3 31. Rd1 Bxg5 32. hxg5 Qxg5 33. Rb8+ Kf7 34. Be2 Qg3+ 35. Kf1 Rf3+ 36. Bxf3 Rxf3+ 0-1

[Event "California op"]
[Site "California"]
[Date "1992.??.??"]
[Round "?"]
[White "Sierra, Flores"]
[Black "Gross, Matthew R"]
[Result "0-1"]
[ECO "A10"]
[PlyCount "64"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. c4 g5 2. d4 Bg7 3. Bxg5 c5 4. Nf3 Nc6 5. e3 Qb6 6. Qb3 cxd4 7. Qxb6 axb6 8. Na3 dxe3 9. Nb5 exf2+ 10. Kxf2 Ra4 11. Be3 Bxb2 12. Rb1 Rxa2 13. Kg3 h5 14. Nc7+ Kf8 15. h3 Nf6 16. Bd3 h4+ 17. Kh2 Be5+ 18. Nxe5 Nxe5 19. Rhd1 Ra3 20. Bd4 Nxd3 21. Bxf6 exf6 22. Nd5 d6 23. Nxb6 Be6 24. Rd2 Rg8 25. g4 hxg3+ 26. Kg1 Nf4 27. Rxd6 Ra2 28. Rd8+ Kg7 29. Re1 Rg2+ 30. Kh1 Rh2+ 31. Kg1 Nxh3+ 32. Kf1 Rf2# 0-1

