[Event "Cairnhill op 22nd"]
[Site "Singapore"]
[Date "2004.12.10"]
[Round "9"]
[White "Yeng Ngai Seng, Kenny"]
[Black "Tan, Koh Boon Mark"]
[Result "0-1"]
[ECO "D38"]
[PlyCount "20"]
[EventDate "2004.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SIN"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. cxd5 exd5 4. Nc3 Nf6 5. Bg5 Nbd7 6. e3 Bb4 7. Qc2 c5 8. Nf3 Qa5 9. Bxf6 Nxf6 10. Bb5+ Qxb5 0-1

[Event "Cairnhill op 22nd"]
[Site "Singapore"]
[Date "2004.12.09"]
[Round "8"]
[White "Tan, Koh Boon Mark"]
[Black "Ling, Kay Soon"]
[Result "0-1"]
[ECO "A40"]
[PlyCount "90"]
[EventDate "2004.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SIN"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 Nc6 2. d5 Ne5 3. f4 Ng6 4. e4 e6 5. dxe6 fxe6 6. Nf3 Bc5 7. Bd3 Nh6 8. g3 b6 9. Qe2 Bb7 10. Nc3 Qe7 11. Bd2 0-0-0 12. 0-0-0 Rdf8 13. Na4 d5 14. Nxc5 Qxc5 15. Be3 Qa5 16. Bd4 Qxa2 17. b3 c5 18. Bb2 d4 19. Bc4 Kb8 20. Ng5 e5 21. f5 Ne7 22. Rhf1 a6 23. b4 Qa4 24. bxc5 b5 25. Bb3 Qb4 26. Ne6 Rc8 27. h3 Nhg8 28. Bd5 Nf6 29. Bxb7 Kxb7 30. Rf3 Nc6 31. Rb3 Qa4 32. g4 Na5 33. Ra3 Qb4 34. Nxd4 exd4 35. Rxd4 Nc4 36. Rb3 Qxc5 37. Rdd3 Nxb2 38. Kxb2 Qe5+ 39. Ka2 Rc7 40. Re3 Rhc8 41. c3 Nd7 42. Rd3 Nb6 43. Kb2 Na4+ 44. Ka3 Qe7+ 45. Ka2 Nc5 0-1

[Event "Cairnhill op 22nd"]
[Site "Singapore"]
[Date "2004.12.08"]
[Round "7"]
[White "Ong, Chuan Hock"]
[Black "Tan, Koh Boon Mark"]
[Result "1/2-1/2"]
[ECO "B83"]
[PlyCount "112"]
[EventDate "2004.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SIN"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 a6 4. Be2 e6 5. 0-0 Be7 6. d4 cxd4 7. Nxd4 Nf6 8. a4 0-0 9. Be3 d6 10. Kh1 Nxd4 11. Qxd4 e5 12. Qd3 b6 13. Bg5 Bb7 14. Rfd1 Nxe4 15. Bxe7 Nxf2+ 16. Kg1 Nxd3 17. Bxd8 Nxb2 18. Rdb1 Nxa4 19. Nxa4 Rfxd8 20. Rxb6 Be4 21. c4 Bf5 22. Nc3 Be6 23. Rd1 Kf8 24. Rdxd6 Rxd6 25. Rxd6 Ke7 26. c5 a5 27. Bf3 Rc8 28. Nd5+ Bxd5 29. Rxd5 f6 30. c6 Rxc6 31. Rxe5+ Re6 32. Rxe6+ Kxe6 33. Bd1 g6 34. Kf2 h5 35. Kg3 Ke5 36. Bc2 g5 37. Bd1 h4+ 38. Kg4 Ke4 39. Bc2+ Ke5 40. Kf3 f5 41. Ke3 h3 42. g3 f4+ 43. Kf3 fxg3 44. hxg3 g4+ 45. Kf2 Kf6 46. Ba4 Kf5 47. Bd7+ Kg5 48. Bc6 Kf5 49. Ke3 Ke5 50. Kf2 Kd6 51. Bb5 Ke5 52. Be2 Kf5 53. Bd1 Kg5 54. Bc2 Kf6 55. Ba4 Kf5 56. Bd7+ Kg5 1/2-1/2

[Event "Cairnhill op 22nd"]
[Site "Singapore"]
[Date "2004.12.07"]
[Round "6"]
[White "Pereira, Johnharry"]
[Black "Tan, Koh Boon Mark"]
[Result "0-1"]
[ECO "D35"]
[PlyCount "68"]
[EventDate "2004.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SIN"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. cxd5 exd5 6. e3 Bb4 7. Bd3 c6 8. Nge2 0-0 9. Qc2 Be7 10. 0-0 Re8 11. f3 h6 12. Bh4 c5 13. b3 b6 14. Rae1 Bb7 15. Kh1 Rc8 16. dxc5 Bxc5 17. Bf5 g5 18. Bf2 Bxe3 19. Bxe3 Rxe3 20. Qd2 Re5 21. Nd4 Rc5 22. h4 Nh5 23. Kh2 Qb8 24. Kg1 Ng3 25. Bxd7 Nxf1 26. Kxf1 Qd6 27. Rxe5 Qxe5 28. Bg4 gxh4 29. Qe2 f6 30. Be6+ Kh8 31. Qd2 Qg5 32. f4 Qg3 33. Nce2 Ba6 34. f5 Qg5 0-1

[Event "Cairnhill op 22nd"]
[Site "Singapore"]
[Date "2004.12.06"]
[Round "5"]
[White "Tan, Koh Boon Mark"]
[Black "Khng Nguan Hock, Vincent"]
[Result "1-0"]
[ECO "C24"]
[PlyCount "59"]
[EventDate "2004.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SIN"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Be7 4. Nf3 d6 5. h3 0-0 6. Be3 c6 7. Nbd2 d5 8. Bb3 d4 9. Bg5 Nfd7 10. Bxe7 Qxe7 11. 0-0 Nc5 12. c3 dxc3 13. Nc4 cxb2 14. Rb1 Nxb3 15. Qxb3 Nd7 16. Qxb2 Re8 17. Qc3 f6 18. Rfd1 Nf8 19. d4 exd4 20. Rxd4 Rd8 21. Rxd8 Qxd8 22. Na5 Qc7 23. e5 fxe5 24. Nxe5 c5 25. Rxb7 Bxb7 26. Qc4+ Ne6 27. Qxe6+ Kh8 28. Nxb7 Qxb7 29. Nf7+ Qxf7 30. Qxf7 1-0

[Event "Cairnhill op 22nd"]
[Site "Singapore"]
[Date "2004.12.05"]
[Round "4"]
[White "Tan, Koh Boon Mark"]
[Black "Lee Say Siong, John"]
[Result "1-0"]
[ECO "B26"]
[PlyCount "73"]
[EventDate "2004.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SIN"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 d6 7. Qd2 a6 8. a4 Bd7 9. Nge2 Qb6 10. 0-0 Qc7 11. h3 h5 12. d4 cxd4 13. Nxd4 Ne5 14. b3 Rc8 15. Nce2 Ne7 16. Rac1 d5 17. Bg5 Bc6 18. f4 Ng4 19. hxg4 hxg4 20. f5 gxf5 21. exf5 Bxd4+ 22. Qxd4 e5 23. Qxg4 d4 24. Bxc6+ Qxc6 25. Qf3 Qb6 26. Kg2 f6 27. Bh4 Kf7 28. c3 Rcg8 29. Kh3 Qxb3 30. Rb1 Qc2 31. Rxb7 d3 32. Qd5+ Kg7 33. Rxe7+ Kh6 34. Qf7 Qxe2 35. Qxf6+ Kh5 36. Qf7+ Kh6 37. Re6+ 1-0

[Event "Cairnhill op 22nd"]
[Site "Singapore"]
[Date "2004.12.05"]
[Round "3"]
[White "Teo Hao Chun, Esmond"]
[Black "Tan, Koh Boon Mark"]
[Result "0-1"]
[ECO "B32"]
[PlyCount "96"]
[EventDate "2004.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SIN"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. c3 d5 5. Bb5 dxe4 6. Nxd4 Bd7 7. 0-0 e6 8. Re1 Nxd4 9. Bxd7+ Qxd7 10. Qxd4 Qxd4 11. cxd4 f5 12. f3 exf3 13. Rxe6+ Kd7 14. Re5 g6 15. gxf3 Bg7 16. Re2 Bxd4+ 17. Kg2 Nf6 18. Nc3 Rhe8 19. Kf1 Rxe2 20. Nxe2 Be5 21. Bf4 Bxf4 22. Nxf4 Rc8 23. Re1 Rc2 24. Re2 Rxe2 25. Nxe2 Ke6 26. Nc3 Nd5 27. Nb5 a6 28. Nd4+ Ke5 29. Nc2 a5 30. a3 g5 31. Kf2 b5 32. Na1 a4 33. Nc2 f4 34. h3 Ne3 35. Nxe3 fxe3+ 36. Kxe3 h5 37. Ke2 Kf4 38. Kf2 h4 39. Ke2 Kg3 40. Ke3 Kxh3 41. Kf2 g4 42. fxg4 Kxg4 43. Kg2 h3+ 44. Kf2 Kf4 45. Kg1 Kg3 46. Kh1 h2 47. b3 axb3 48. a4 b2 0-1

[Event "Cairnhill op 22nd"]
[Site "Singapore"]
[Date "2004.12.04"]
[Round "2"]
[White "Lee, Wei Long"]
[Black "Tan, Koh Boon Mark"]
[Result "1-0"]
[ECO "B23"]
[PlyCount "95"]
[EventDate "2004.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SIN"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 d6 4. Nf3 Bg4 5. Bb5 Qd7 6. h3 Bxf3 7. Qxf3 e6 8. 0-0 Nge7 9. d3 a6 10. Bxc6 Nxc6 11. Be3 Be7 12. Ne2 Nb4 13. Rfc1 Qa4 14. b3 Qa3 15. Bd2 Bf6 16. Bxb4 Qxb4 17. c3 Qb6 18. Kh1 0-0 19. Rc2 Rfd8 20. Rf1 d5 21. e5 Be7 22. f5 exf5 23. Qxf5 Qe6 24. Qxe6 fxe6 25. Nf4 Rf8 26. Rcf2 Bh4 27. Rf3 Rae8 28. g3 Bg5 29. Ne2 Rxf3 30. Rxf3 Rf8 31. Kg2 Rxf3 32. Kxf3 Kf7 33. c4 Bd8 34. cxd5 exd5 35. Nf4 d4 36. g4 g5 37. Nh5 Ke6 38. Ke4 Bc7 39. Nf6 Bxe5 40. Nxh7 Bf6 41. Nxf6 Kxf6 42. Kd5 b6 43. Kd6 b5 44. Kxc5 Ke5 45. b4 Kf4 46. Kxd4 Kg3 47. Ke3 Kxh3 48. Kf3 1-0

[Event "Cairnhill op 22nd"]
[Site "Singapore"]
[Date "2004.12.04"]
[Round "1"]
[White "Tan, Koh Boon Mark"]
[Black "Nario, Eduardo"]
[Result "0-1"]
[ECO "B26"]
[PlyCount "76"]
[EventDate "2004.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SIN"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. g3 Nc6 4. Bg2 g6 5. d3 Bg7 6. Be3 d6 7. Qd2 h6 8. Nge2 Nd4 9. 0-0 Ne7 10. Nd1 Nec6 11. c3 Nxe2+ 12. Qxe2 0-0 13. f4 b6 14. Nf2 d5 15. Rac1 Ba6 16. e5 Rc8 17. c4 Ne7 18. g4 Bb7 19. b3 Qd7 20. Rfd1 Rfd8 21. d4 cxd4 22. Bxd4 Qe8 23. Qb2 Bf8 24. cxd5 Nxd5 25. Ne4 Qd7 26. Bxb6 Rxc1 27. Qxc1 Rc8 28. Qb2 Be7 29. Bxa7 Qc7 30. Qf2 Ba6 31. Be3 Ba3 32. Nf6+ Nxf6 33. exf6 Rd8 34. Rxd8+ Qxd8 35. Qd2 Qxf6 36. Bd4 Qd8 37. Qc3 Qd6 38. Be5 Qc5+ 0-1

[Event "Cairnhill op 21st"]
[Site "Singapore"]
[Date "2003.12.13"]
[Round "8"]
[White "Tan, Koh Boon Mark"]
[Black "Khaled, Omar"]
[Result "0-1"]
[ECO "A05"]
[BlackElo "2122"]
[PlyCount "78"]
[EventDate "2003.12.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SIN"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 d6 5. d3 0-0 6. e4 e5 7. Nbd2 Nc6 8. Re1 Ne8 9. Nf1 f5 10. Bg5 Ne7 11. exf5 gxf5 12. Qd2 c6 13. Nh4 Nf6 14. c4 Qc7 15. Re2 Kh8 16. Rae1 Nfg8 17. f4 Ng6 18. Nxg6+ hxg6 19. c5 dxc5 20. fxe5 Be6 21. Bf6 Qf7 22. Qg5 Kh7 23. Nd2 Nxf6 24. exf6 Bxf6 25. Qf4 Bxa2 26. Nf3 Rae8 27. h4 Rxe2 28. Rxe2 Re8 29. Rxe8 Qxe8 30. h5 Bf7 31. Bh3 Qd7 32. g4 gxh5 33. gxh5 Be6 34. Qd2 Qg7+ 35. Kf1 Qg3 36. Bg2 Bf7 37. h6 f4 38. d4 Bc4+ 39. Kg1 Bxd4+ 0-1

[Event "Cairnhill op 21st"]
[Site "Singapore"]
[Date "2003.12.13"]
[Round "9"]
[White "Tan, Koh Boon Mark"]
[Black "Lee, Wei Cheng"]
[Result "0-1"]
[ECO "A05"]
[BlackElo "2044"]
[PlyCount "106"]
[EventDate "2003.12.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SIN"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. Nf3 f5 2. d3 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. Nbd2 d6 7. Re1 e5 8. e4 Nc6 9. c3 Nh5 10. exf5 Bxf5 11. Nf1 Qd7 12. Ne3 Bh3 13. Bh1 h6 14. Nh4 Qf7 15. Qe2 Nf6 16. Bd2 Rae8 17. Nd1 g5 18. Bg2 Bd7 19. Nf3 e4 20. dxe4 Nxe4 21. Be3 Bg4 22. Nxg5 Nxg5 23. Qxg4 Ne5 24. Qe2 Ngf3+ 25. Kh1 Nxe1 26. Qxe1 c6 27. f4 Ng4 28. Qd2 Qe7 29. Bf2 Qe2 30. Qxe2 Rxe2 31. Bg1 Re1 32. Bf3 Ne3 33. h4 Re8 34. Kh2 Nxd1 35. Rxd1 Rxd1 36. Bxd1 Re1 37. Bb3+ d5 38. Bxa7 Re2+ 39. Kh3 Rxb2 40. Kg4 Bxc3 41. Kf5 Kg7 42. Bb8 Bf6 43. g4 d4 44. g5 Rxb3 45. gxf6+ Kf7 46. Ke4 d3 47. Ke3 Ra3 48. Bd6 Rxa2 49. Kxd3 Kxf6 50. Bf8 Kg6 51. Ke4 Re2+ 52. Kf3 Re8 53. Bc5 h5 0-1

[Event "Cairnhill op 21st"]
[Site "Singapore"]
[Date "2003.12.12"]
[Round "7"]
[White "Muhammad Faisal, Kamarul"]
[Black "Tan, Koh Boon Mark"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2005"]
[PlyCount "56"]
[EventDate "2003.12.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SIN"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Nf6 4. c4 e6 5. dxe6 Bxe6 6. Nf3 Nc6 7. Nc3 Be7 8. Be2 0-0 9. 0-0 Qd7 10. d3 Rfd8 11. Be3 Bf5 12. Qb3 Na5 13. Qa3 b6 14. Rfd1 Nc6 15. Qb3 Na5 16. Qb5 Qc8 17. Qa4 Bd7 18. Qc2 Bf5 19. Qc1 Nc6 20. d4 Nb4 21. Rd2 Ng4 22. d5 Bd6 23. a3 Na6 24. Bd3 Re8 25. Qc2 Rxe3 26. Bxf5 Qe8 27. Bxg4 Re7 28. Ng5 Re1+ 0-1

[Event "Cairnhill op 21st"]
[Site "Singapore"]
[Date "2003.12.11"]
[Round "6"]
[White "Gokhale, Chandrashekhar"]
[Black "Tan, Koh Boon Mark"]
[Result "1-0"]
[ECO "E97"]
[WhiteElo "2379"]
[PlyCount "77"]
[EventDate "2003.12.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SIN"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 Nc6 7. 0-0 e5 8. d5 Ne7 9. b4 a5 10. Ba3 Nd7 11. bxa5 f5 12. Bb4 Nf6 13. Nd2 f4 14. c5 g5 15. cxd6 cxd6 16. h3 Ng6 17. Nc4 Ne8 18. Nb6 Nh4 19. f3 Rb8 20. Nb5 Rf6 21. Rc1 Rh6 22. Nxc8 Rxc8 23. Rf2 Bf8 24. Bf1 Rg6 25. Rfc2 Rxc2 26. Qxc2 g4 27. hxg4 h5 28. Qc8 Qe7 29. Nc7 hxg4 30. Qxe8 gxf3 31. Qxe7 Bxe7 32. Be1 fxg2 33. Be2 f3 34. Bxh4 Bxh4 35. Bxf3 Bg5 36. Re1 Bd2 37. Re2 Bxa5 38. Na8 Kf7 39. Bh5 1-0

[Event "Cairnhill op 21st"]
[Site "Singapore"]
[Date "2003.12.10"]
[Round "5"]
[White "Tan, Koh Boon Mark"]
[Black "Sadorra, Julio Catalino"]
[Result "1-0"]
[ECO "A08"]
[BlackElo "2255"]
[PlyCount "44"]
[EventDate "2003.12.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SIN"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d3 Nf6 5. 0-0 g6 6. Nbd2 Bg7 7. e4 0-0 8. c3 e5 9. h3 h6 10. Re1 Be6 11. exd5 Nxd5 12. Nc4 Qc7 13. Qe2 Rfe8 14. a4 Rad8 15. Be3 Nxe3 16. Nxe3 Qd7 17. Kh2 Qxd3 18. Qxd3 Rxd3 19. Rad1 Red8 20. Nd2 f5 21. a5 e4 22. Ndc4 Kh8 1-0

[Event "Cairnhill op 21st"]
[Site "Singapore"]
[Date "2003.12.07"]
[Round "2"]
[White "Koh, Kum Hong"]
[Black "Tan, Koh Boon Mark"]
[Result "1-0"]
[ECO "E69"]
[WhiteElo "2244"]
[PlyCount "69"]
[EventDate "2003.12.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SIN"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d6 6. Nc3 Nbd7 7. 0-0 e5 8. e4 c6 9. h3 Qe7 10. Be3 c5 11. d5 Nb6 12. Nd2 Nh5 13. Kh2 Bd7 14. Bf3 f5 15. exf5 gxf5 16. Bxh5 f4 17. Nde4 fxe3 18. fxe3 Nxc4 19. Qe2 Nb6 20. b3 Bf5 21. Bg4 Bg6 22. Be6+ Kh8 23. Qg4 Rxf1 24. Rxf1 Rf8 25. Rxf8+ Qxf8 26. Kg2 Bh6 27. h4 Bxe3 28. h5 Bxe4+ 29. Nxe4 c4 30. Qe2 cxb3 31. axb3 Bh6 32. Qg4 Be3 33. Nf6 Nc8 34. Qf5 Qg7 35. Bxc8 1-0

[Event "Cairnhill op 20th"]
[Site "Singapore"]
[Date "2002.12.15"]
[Round "7"]
[White "Bhatia, Kanwal K"]
[Black "Tan, Koh Boon Mark"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2047"]
[PlyCount "89"]
[EventDate "2002.12.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SIN"]
[SourceTitle "CBM 091 Extra"]
[Source "ChessBase"]
[SourceDate "2003.01.09"]
[SourceVersion "1"]
[SourceVersionDate "2003.01.09"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 Bg4 6. Be2 Nf6 7. c4 Qd6 8. d5 Bxf3 9. Bxf3 Nd4 10. 0-0 g6 11. Nc3 a6 12. Be3 Nxf3+ 13. Qxf3 Bg7 14. Bf4 Qd7 15. d6 0-0 16. Rad1 Rfe8 17. Bg5 Qc6 18. dxe7 Qxf3 19. gxf3 h6 20. Bxf6 Bxf6 21. Nd5 Bxe7 22. Nc7 Bf6 23. Nxa8 Rxa8 24. b3 b5 25. Rd6 Kg7 26. Re1 b4 27. Rd5 a5 28. Rxc5 a4 29. bxa4 Rxa4 30. Re2 Ra3 31. Rb5 Rxf3 32. Kg2 Rf4 33. Rxb4 Rg4+ 34. Kf1 Rh4 35. f3 Rf4 36. Kg2 Bc3 37. Ra4 g5 38. Re4 Rf5 39. Ra3 Bb4 40. Rb3 Bc5 41. Rb5 Kg6 42. a4 h5 43. h3 h4 44. a5 f6 45. a6 1-0

[Event "Cairnhill op 20th"]
[Site "Singapore"]
[Date "2002.12.15"]
[Round "6"]
[White "Tan, Koh Boon Mark"]
[Black "Kek, Wei Chuan"]
[Result "0-1"]
[ECO "B18"]
[BlackElo "2118"]
[PlyCount "78"]
[EventDate "2002.12.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SIN"]
[SourceTitle "CBM 091 Extra"]
[Source "ChessBase"]
[SourceDate "2003.01.09"]
[SourceVersion "1"]
[SourceVersionDate "2003.01.09"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. Bd3 Bxd3 8. Qxd3 Ngf6 9. 0-0 e6 10. Bg5 Be7 11. Rfd1 h6 12. Bxf6 Nxf6 13. c4 0-0 14. Rac1 Qc7 15. Ne4 Rad8 16. Nxf6+ Bxf6 17. b3 Rd7 18. Qe4 Rfd8 19. Rc2 c5 20. d5 exd5 21. cxd5 Qd6 22. Rcd2 a6 23. g3 b5 24. Qc2 Rc7 25. Rc1 Rdc8 26. Qe4 c4 27. Rdc2 c3 28. Nd4 Bxd4 29. Qxd4 b4 30. Re1 Rd8 31. Re4 a5 32. Qd3 Rcd7 33. Rce2 Qg6 34. h4 Rxd5 35. Qf3 Qf5 36. Rf4 Qd3 37. Rxf7 Qxf3 38. Rxf3 Rd2 39. Ree3 c2 0-1

[Event "Cairnhill op 20th"]
[Site "Singapore"]
[Date "2002.12.14"]
[Round "5"]
[White "Lau, Keng Boon"]
[Black "Tan, Koh Boon Mark"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "2255"]
[PlyCount "79"]
[EventDate "2002.12.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SIN"]
[SourceTitle "CBM 091 Extra"]
[Source "ChessBase"]
[SourceDate "2003.01.09"]
[SourceVersion "1"]
[SourceVersionDate "2003.01.09"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. Nc3 Nf6 4. Bg5 e6 5. cxd5 exd5 6. e3 Bb4 7. Bd3 0-0 8. Nge2 h6 9. Bh4 Bxc3+ 10. Nxc3 Re8 11. 0-0 g5 12. Bg3 Bg4 13. Qb1 Kg7 14. h3 Bh5 15. b4 Bg6 16. b5 Ne7 17. Be5 Neg8 18. f4 gxf4 19. Rxf4 Kh7 20. Qf1 Re6 21. Bf5 Bxf5 22. Rxf5 c6 23. Qf3 Qe7 24. Rf1 Rf8 25. Ne2 cxb5 26. Bxf6 Nxf6 27. Rxf6 Rxf6 28. Qxf6 Qxe3+ 29. Qf2 Qxf2+ 30. Rxf2 Kg7 31. Nc3 b4 32. Nxd5 Rd8 33. Ne3 Kg6 34. d5 a5 35. Rc2 f6 36. Rc5 a4 37. Rb5 b3 38. axb3 axb3 39. g3 Rd7 40. Rxb3 1-0

[Event "Cairnhill op 20th"]
[Site "Singapore"]
[Date "2002.12.14"]
[Round "4"]
[White "Tan, Koh Boon Mark"]
[Black "Goh, Wei Ming Kevin"]
[Result "1-0"]
[ECO "B22"]
[BlackElo "2211"]
[PlyCount "67"]
[EventDate "2002.12.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SIN"]
[SourceTitle "CBM 091 Extra"]
[Source "ChessBase"]
[SourceDate "2003.01.09"]
[SourceVersion "1"]
[SourceVersionDate "2003.01.09"]
[SourceQuality "1"]

1. e4 c5 2. c3 e5 3. Bc4 Nc6 4. Nf3 Qc7 5. Na3 Be7 6. d3 a6 7. Nc2 d6 8. a4 Nd8 9. 0-0 Nf6 10. Bg5 Ne6 11. Ne3 Nxg5 12. Nxg5 0-0 13. Qb3 Bd8 14. f4 exf4 15. Rxf4 d5 16. Nxd5 Nxd5 17. Rxf7 Rxf7 18. Nxf7 Kxf7 19. Bxd5+ Kg6 20. Rf1 Bf6 21. e5 Bxe5 22. Be4+ Kh6 23. Qg8 g6 24. Qf8+ Bg7 25. Qf3 Qe5 26. Qe3+ Qg5 27. Rf4 Bf6 28. h4 Qxf4 29. Qxf4+ Kg7 30. g4 Be6 31. g5 Be7 32. Qe5+ Kf7 33. h5 Rd8 34. hxg6+ 1-0

[Event "Cairnhill op 20th"]
[Site "Singapore"]
[Date "2002.12.12"]
[Round "2"]
[White "Tan, Koh Boon Mark"]
[Black "Mooi, Osric Kok Onn"]
[Result "1/2-1/2"]
[ECO "C45"]
[BlackElo "2106"]
[PlyCount "76"]
[EventDate "2002.12.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SIN"]
[SourceTitle "CBM 091 Extra"]
[Source "ChessBase"]
[SourceDate "2003.01.09"]
[SourceVersion "1"]
[SourceVersionDate "2003.01.09"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 Qf6 6. c3 Qxd4 7. cxd4 Nf6 8. Bd3 c5 9. d5 a6 10. a4 Rb8 11. Bf4 d6 12. Nc3 Nd7 13. 0-0 Be7 14. Rfb1 h5 15. h3 g5 16. Bh2 Rg8 17. b4 cxb4 18. Rxb4 Nc5 19. Be2 g4 20. hxg4 Bxg4 21. f3 Bh3 22. Bf1 Bf6 23. e5 Bxe5 24. Bxe5 dxe5 25. Ne4 Nxe4 26. Rxe4 f6 27. Rh4 Bf5 28. Rxh5 Bg6 29. Rh4 Kd7 30. Rc1 Rbc8 31. Rxc8 Rxc8 32. Rb4 b5 33. axb5 axb5 34. Bxb5+ Kd6 35. Bc6 Bf7 36. Rb6 Kc5 37. Rb5+ Kd6 38. Rb6 Kc5 1/2-1/2

[Event "Cairnhill op 20th"]
[Site "Singapore"]
[Date "2002.12.11"]
[Round "1"]
[White "Goh, Benjamin"]
[Black "Tan, Koh Boon Mark"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2072"]
[PlyCount "70"]
[EventDate "2002.12.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SIN"]
[SourceTitle "CBM 091 Extra"]
[Source "ChessBase"]
[SourceDate "2003.01.09"]
[SourceVersion "1"]
[SourceVersionDate "2003.01.09"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 Bg4 6. dxc5 Bxf3 7. gxf3 Qxd1+ 8. Kxd1 e6 9. b4 a6 10. Be3 Nf6 11. Nd2 Nd5 12. Kc2 Be7 13. Bc4 Bf6 14. Ne4 Be5 15. Rad1 Rd8 16. a4 0-0 17. Kb3 Nxe3 18. fxe3 Bc7 19. f4 Ne7 20. Nd6 Bxd6 21. Rxd6 Rxd6 22. cxd6 Nc8 23. Rd1 Rd8 24. d7 Nb6 25. a5 Rxd7 26. Rxd7 Nxd7 27. b5 Kf8 28. bxa6 bxa6 29. Kb4 Nb8 30. Kc5 Ke7 31. Kb6 Kd6 32. Bxa6 Nxa6 33. Kxa6 Kc6 34. Ka7 Kc7 35. Ka6 Kc6 1/2-1/2

[Event "Cairnhill op 16th"]
[Site "Singapore"]
[Date "1998.12.23"]
[Round "6"]
[White "Lim, Chuin Hoong Ronnie"]
[Black "Tan, Koh Boon Mark"]
[Result "1-0"]
[ECO "E98"]
[WhiteElo "2225"]
[PlyCount "67"]
[EventDate "1998.12.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SIN"]
[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. Nf3 0-0 6. Be2 Nc6 7. 0-0 e5 8. d5 Ne7 9. Ne1 Ne8 10. Be3 f5 11. f3 a5 12. c5 f4 13. Bf2 g5 14. Rc1 Rf7 15. cxd6 cxd6 16. Na4 b5 17. Bxb5 Rb8 18. Qe2 Nf6 19. Qc4 Bh6 20. Ba7 Rb7 21. Bf2 Rf8 22. Nd3 g4 23. Nxe5 g3 24. Bd4 gxh2+ 25. Kxh2 Nexd5 26. Nc6 Ng4+ 27. fxg4 Qh4+ 28. Kg1 f3 29. Qxd5+ Rff7 30. Rxf3 Bxc1 31. Bf2 Qh6 32. Ne7+ Kg7 33. Bd4+ Rf6 34. Bxf6+ 1-0

[Event "Cairnhill op 16th"]
[Site "Singapore"]
[Date "1998.12.22"]
[Round "5"]
[White "Tan, Kenneth"]
[Black "Tan, Koh Boon Mark"]
[Result "1-0"]
[ECO "E83"]
[WhiteElo "2100"]
[PlyCount "45"]
[EventDate "1998.12.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SIN"]
[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. Be3 Nc6 7. Qd2 e5 8. d5 Ne7 9. Bd3 Ne8 10. 0-0-0 f5 11. exf5 gxf5 12. Bg5 Bf6 13. h4 Kh8 14. Nh3 Ng6 15. g3 Ng7 16. Rhg1 Nh5 17. Qc2 Kg7 18. Kb1 Be7 19. Ne2 Bxg5 20. Nxg5 h6 21. Ne6+ Bxe6 22. dxe6 Qf6 23. g4 1-0

[Event "Cairnhill op 16th"]
[Site "Singapore"]
[Date "1998.12.20"]
[Round "2"]
[White "Morrison, Chris"]
[Black "Tan, Koh Boon Mark"]
[Result "1-0"]
[ECO "B25"]
[WhiteElo "2200"]
[PlyCount "63"]
[EventDate "1998.12.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SIN"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nf6 4. Bg2 Nc6 5. d3 g6 6. h3 Bg7 7. Be3 Bd7 8. Nge2 a6 9. 0-0 0-0 10. Qd2 Rc8 11. f4 b5 12. g4 e6 13. f5 Ne5 14. g5 b4 15. Nd1 Nxe4 16. Bxe4 gxf5 17. Bg2 Ng6 18. Ng3 f6 19. Nh5 f4 20. Bxf4 Nxf4 21. Rxf4 fxg5 22. Rxf8+ Bxf8 23. Ne3 Be8 24. Qe2 Rc7 25. Qg4 Bxh5 26. Qxh5 Bg7 27. Ng4 Bxb2 28. Rf1 Bd4+ 29. Kh1 Bg7 30. Be4 Bd4 31. Nh6+ Kg7 32. Nf7 1-0

