[Event "Groningen op-B"]
[Site "Groningen"]
[Date "2008.12.30"]
[Round "9"]
[White "Haveman, Koen"]
[Black "Dijkstra, Maarten"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1869"]
[BlackElo "1869"]
[PlyCount "93"]
[EventDate "2008.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 127 Extra"]
[Source "ChessBase"]
[SourceDate "2009.01.08"]
[SourceVersion "2"]
[SourceVersionDate "2009.01.28"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Bc4 e6 5. Nge2 Nf6 6. 0-0 d5 7. exd5 exd5 8. Nxd5 Nxd5 9. Nxd4 cxd4 10. Qh5 Be6 11. Re1 Nf4 12. Bb5+ Ke7 13. Qg5+ f6 14. Qxf4 Kf7 15. d3 Qb6 16. Ba4 Bd6 17. Qe4 Bb4 18. Re2 Rad8 19. Bf4 Bd5 20. Bb3 Bxb3 21. axb3 g6 22. Qf3 Rhe8 23. Re4 Rxe4 24. dxe4 a6 25. Rd1 Bd6 26. Bxd6 Qxd6 27. Qd3 Qb6 28. Qc4+ Kg7 29. h3 Qc6 30. Qxc6 bxc6 31. Kf1 Kf7 32. Ke2 c5 33. Kd3 Ke6 34. Ra1 Rd6 35. Ra5 Rc6 36. Kc4 Kd6 37. f4 g5 38. g3 h6 39. c3 Kc7 40. cxd4 cxd4+ 41. Kxd4 Kb6 42. Rd5 gxf4 43. gxf4 Re6 44. f5 Rc6 45. e5 a5 46. exf6 Rxf6 47. Ke5 1-0

[Event "Groningen op-B"]
[Site "Groningen"]
[Date "2008.12.28"]
[Round "7"]
[White "Groot, Simon"]
[Black "Haveman, Koen"]
[Result "0-1"]
[ECO "C05"]
[WhiteElo "2020"]
[BlackElo "1869"]
[PlyCount "58"]
[EventDate "2008.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 127 Extra"]
[Source "ChessBase"]
[SourceDate "2009.01.08"]
[SourceVersion "2"]
[SourceVersionDate "2009.01.28"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 c5 6. c3 Nc6 7. Ndf3 cxd4 8. cxd4 Qb6 9. Ne2 Be7 10. Nc3 0-0 11. Bd3 Kh8 12. Bb1 f6 13. Qd3 g6 14. h4 fxe5 15. fxe5 Rxf3 16. gxf3 Nxd4 17. f4 Nf5 18. h5 Nc5 19. Qf3 Ne4 20. Bxe4 dxe4 21. Nxe4 Bh4+ 22. Kf1 Bd7 23. Rxh4 Bb5+ 24. Ke1 Qg1+ 25. Kd2 Qd4+ 26. Ke1 Qg1+ 27. Kd2 Qd4+ 28. Ke1 Nxh4 29. Qe3 Ng2+ 0-1

[Event "Groningen op-B"]
[Site "Groningen"]
[Date "2008.12.28"]
[Round "8"]
[White "Ypma, Peter"]
[Black "Haveman, Koen"]
[Result "1/2-1/2"]
[ECO "C11"]
[WhiteElo "1973"]
[BlackElo "1869"]
[PlyCount "53"]
[EventDate "2008.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 127 Extra"]
[Source "ChessBase"]
[SourceDate "2009.01.08"]
[SourceVersion "2"]
[SourceVersionDate "2009.01.28"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 cxd4 8. Nxd4 Bc5 9. Qd2 0-0 10. 0-0-0 a6 11. Qf2 Bxd4 12. Bxd4 b5 13. Bd3 b4 14. Ne2 a5 15. Rhe1 Ba6 16. Qf3 Nxd4 17. Nxd4 Nc5 18. Bxa6 Rxa6 19. Re3 f6 20. exf6 Qxf6 21. g3 Ne4 22. Qf1 Ra7 23. Qb5 Rc8 24. Re2 Raa8 25. Qb6 Re8 26. Rd3 Kh8 27. Rd1 1/2-1/2

[Event "Groningen op-B"]
[Site "Groningen"]
[Date "2008.12.24"]
[Round "4"]
[White "Naaijer, Joop"]
[Black "Haveman, Koen"]
[Result "0-1"]
[ECO "E32"]
[WhiteElo "1613"]
[BlackElo "1869"]
[PlyCount "56"]
[EventDate "2008.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 127 Extra"]
[Source "ChessBase"]
[SourceDate "2009.01.08"]
[SourceVersion "2"]
[SourceVersionDate "2009.01.28"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. Nf3 b6 5. e3 Bb7 6. Be2 Ne4 7. Qc2 0-0 8. 0-0 Bxc3 9. bxc3 d6 10. Bb2 Nd7 11. Rad1 f5 12. d5 e5 13. Ne1 Qg5 14. Qc1 Rae8 15. f3 Nef6 16. f4 Qg6 17. Nf3 exf4 18. Nh4 Qg5 19. Nf3 Qg6 20. Nh4 Qg5 21. Nf3 Qh6 22. Nd4 Qg6 23. Rxf4 Ne5 24. Nxf5 Nh5 25. Nh4 Qg5 26. Rxf8+ Rxf8 27. Nf3 Nxf3+ 28. Bxf3 Rxf3 0-1

[Event "Groningen op-B"]
[Site "Groningen"]
[Date "2008.12.23"]
[Round "3"]
[White "Haveman, Koen"]
[Black "Mostertman, Xander"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1869"]
[BlackElo "1882"]
[PlyCount "66"]
[EventDate "2008.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 127 Extra"]
[Source "ChessBase"]
[SourceDate "2009.01.08"]
[SourceVersion "2"]
[SourceVersionDate "2009.01.28"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 d6 4. Bxc6+ bxc6 5. d3 g6 6. f4 Bg7 7. Nf3 e6 8. 0-0 Ne7 9. Qe1 f6 10. Bd2 0-0 11. e5 fxe5 12. fxe5 Nf5 13. Be3 Nd4 14. Nxd4 Rxf1+ 15. Qxf1 cxd4 16. Bxd4 c5 17. Be3 Bxe5 18. Qf3 Rb8 19. Bh6 Bb7 20. Ne4 Qh4 21. Qh3 Qxh3 22. gxh3 Bxe4 23. dxe4 Rxb2 24. Rf1 Bg7 25. Bf4 Bf8 26. e5 d5 27. Bg5 Bg7 28. Bf6 Rxc2 29. Bxg7 Kxg7 30. Rf6 Rxa2 31. Rxe6 Kf7 32. Rf6+ Ke7 33. Rc6 c4 0-1

[Event "Groningen op-B"]
[Site "Groningen"]
[Date "2008.12.22"]
[Round "2"]
[White "Haveman, Koen"]
[Black "Boulahfa, Hicham"]
[Result "0-1"]
[ECO "C11"]
[WhiteElo "1869"]
[BlackElo "2012"]
[PlyCount "86"]
[EventDate "2008.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 127 Extra"]
[Source "ChessBase"]
[SourceDate "2009.01.08"]
[SourceVersion "2"]
[SourceVersionDate "2009.01.28"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 cxd4 8. Nxd4 Bc5 9. Qd2 0-0 10. 0-0-0 a6 11. h4 Nxd4 12. Bxd4 b5 13. Rh3 b4 14. Na4 Bxd4 15. Qxd4 a5 16. Kb1 Ba6 17. Bxa6 Rxa6 18. c4 bxc3 19. Rxc3 Qb8 20. Qd3 Ra7 21. Rb3 Rb7 22. Rxb7 Qxb7 23. Qd4 Rc8 24. b3 Rc4 25. Qb2 Rxf4 26. h5 h6 27. Rc1 Qb8 28. Nc5 Nxc5 29. Rxc5 Rf1+ 30. Rc1 Qb5 31. Qd2 Rxc1+ 32. Kxc1 Qc5+ 33. Kb2 d4 34. a3 Qxe5 35. b4 axb4 36. axb4 d3+ 37. Kb3 Qd4 38. Qc3 Qd5+ 39. Kb2 d2 40. Qc8+ Kh7 41. Qc2+ f5 42. Qd1 Qd3 43. g4 fxg4 0-1

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2004.12.29"]
[Round "8"]
[White "Vermeulen, Frans"]
[Black "Haveman, Koen"]
[Result "0-1"]
[ECO "D35"]
[PlyCount "88"]
[EventDate "2004.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. cxd5 exd5 6. Bf4 c6 7. Qc2 g6 8. e3 Bf5 9. Bd3 Bxd3 10. Qxd3 0-0 11. Bh6 Re8 12. Ne5 Nfd7 13. h4 Nxe5 14. dxe5 Bxh4 15. Qd4 Bg5 16. 0-0-0 Nd7 17. e6 Bf6 18. exd7 Re6 19. Qg4 Qxd7 20. Ne4 Qe7 21. Nxf6+ Qxf6 22. Bg5 Qg7 23. f3 a5 24. Rh6 a4 25. a3 c5 26. Rd2 b5 27. Kd1 b4 28. Rh3 bxa3 29. bxa3 Qa1+ 30. Ke2 d4 31. e4 f5 32. Qh4 Ra7 33. Qf4 Rb7 34. e5 Qxa3 35. Bf6 Reb6 36. Qh6 Rb2 37. Bg5 c4 38. Kf2 c3 39. Rxb2 cxb2 40. Rh1 b1Q 41. Rxb1 Rxb1 42. Bf6 Qe3+ 43. Qxe3 dxe3+ 44. Kxe3 Kf7 0-1

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2004.12.28"]
[Round "7"]
[White "Van der Marel, Bert"]
[Black "Haveman, Koen"]
[Result "1-0"]
[ECO "D58"]
[WhiteElo "2201"]
[PlyCount "91"]
[EventDate "2004.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 h6 6. Bh4 0-0 7. e3 b6 8. Rc1 Bb7 9. Bxf6 Bxf6 10. cxd5 exd5 11. b4 c6 12. Bd3 a5 13. b5 c5 14. 0-0 Nd7 15. Bb1 Rc8 16. Qd3 g6 17. Ne2 Qe7 18. Nf4 c4 19. Qc2 Rfe8 20. h4 Bg7 21. h5 g5 22. Ne2 g4 23. Nh2 Qh4 24. Qh7+ Kf8 25. Ng3 Qg5 26. Qf5 Nf6 27. Qxg5 hxg5 28. Bf5 Rc7 29. Nxg4 Nxg4 30. Bxg4 Kg8 31. Bf5 Bc8 32. Bxc8 Rexc8 33. Rc3 Bf8 34. Nf5 Bb4 35. Rc2 Ba3 36. g4 c3 37. f3 Rc4 38. Kf2 R8c7 39. Rb1 Bb2 40. Nd6 Ra4 41. Ne8 Rcc4 42. Nf6+ Kf8 43. Nxd5 Rxa2 44. Ke2 Rb4 45. Kd3 Ra3 46. h6 1-0

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2004.12.26"]
[Round "5"]
[White "Veldman, Jan"]
[Black "Haveman, Koen"]
[Result "1/2-1/2"]
[ECO "D59"]
[PlyCount "32"]
[EventDate "2004.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 Be7 5. e3 h6 6. Bh4 0-0 7. Nc3 b6 8. cxd5 Nxd5 9. Bxe7 Qxe7 10. Rc1 Bb7 11. Bd3 Rc8 12. 0-0 c5 13. Qd2 Nd7 14. Rfd1 cxd4 15. exd4 Nxc3 16. bxc3 Bxf3 1/2-1/2

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2004.12.23"]
[Round "3"]
[White "Haveman, Koen"]
[Black "Otte, Marijn Willem"]
[Result "0-1"]
[ECO "B06"]
[PlyCount "58"]
[EventDate "2004.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. d4 d6 2. e4 Nd7 3. Nf3 g6 4. Be2 Bg7 5. 0-0 c6 6. a4 e5 7. dxe5 dxe5 8. Nc3 Qc7 9. Be3 Ne7 10. a5 0-0 11. Bc4 h6 12. Qd2 Kh7 13. Rfd1 f5 14. exf5 Nxf5 15. Na4 Nxe3 16. Qxe3 b5 17. axb6 axb6 18. Bd3 b5 19. Nc5 Rxa1 20. Rxa1 Nb6 21. Nh4 Rf6 22. Ne4 Rf4 23. g3 Rxh4 24. gxh4 Nd5 25. Ra7 Qd8 26. Qg3 Nf4 27. Nc3 b4 28. Ne4 Bf5 29. f3 Qd4+ 0-1

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2004.12.22"]
[Round "2"]
[White "Kamstra, Jippe"]
[Black "Haveman, Koen"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2157"]
[PlyCount "114"]
[EventDate "2004.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. 0-0 Be7 8. Nbd2 Bf5 9. Re1 Nxd2 10. Bxf5 Nxf3+ 11. gxf3 0-0 12. Qd3 Bd6 13. f4 Qf6 14. Bxh7+ Kh8 15. Re3 Bxf4 16. Rh3 Rfe8 17. Be3 Bh6 18. c3 Nd8 19. Qf5 Re6 20. Kh1 Qxf5 21. Bxf5 Rf6 22. Rg1 Rxf5 23. Bxh6 g6 24. Bf4+ Kg7 25. Rf3 Kg8 26. Rgg3 Ne6 27. Be5 Rxf3 28. Rxf3 c6 29. Rh3 Ng7 30. f4 Re8 31. f5 Nh5 32. f6 Re6 33. Rf3 Kh7 34. Kg1 g5 35. h4 gxh4 36. Rh3 Nxf6 37. Rxh4+ Kg6 38. Rh8 Ne8 39. Kf2 f6 40. Bb8 a6 41. Rh1 Ng7 42. Rg1+ Kf7 43. Kf3 Re4 44. Bf4 Ne6 45. Be3 Rh4 46. Kg3 Rh5 47. Rf1 Kg6 48. Re1 Rh7 49. a3 Ng5 50. Bf4 Ne4+ 51. Kg4 Nf2+ 52. Kf3 Nd3 53. Re2 Nxf4 54. Kxf4 Kf7 55. Kf5 Rh5+ 56. Kg4 Rh1 57. Kg3 Rh7 1/2-1/2

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2004.12.21"]
[Round "1"]
[White "Haveman, Koen"]
[Black "Schlette, Marc"]
[Result "0-1"]
[ECO "E93"]
[BlackElo "2175"]
[PlyCount "98"]
[EventDate "2004.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d6 5. e4 0-0 6. Be2 e5 7. d5 Nbd7 8. Bg5 h6 9. Bh4 a5 10. Nd2 c6 11. 0-0 Nc5 12. Kh1 Qc7 13. f3 Nh5 14. Qc2 Nf4 15. Bf2 Na6 16. Rac1 f5 17. a3 c5 18. Rfe1 Qe7 19. Bf1 Nc7 20. b4 axb4 21. axb4 Na6 22. bxc5 Nxc5 23. Bxc5 dxc5 24. Nb5 Bd7 25. Ra1 Nh5 26. Bd3 f4 27. Ra4 Qh4 28. Raa1 g5 29. Nc7 Rac8 30. d6 g4 31. Kg1 Rf6 32. Nb5 Bf8 33. Nc3 Rxd6 34. Nd5 Rg6 35. Reb1 Bc6 36. Be2 g3 37. h3 Ng7 38. Nb6 Rd8 39. Nb3 Ne6 40. Bf1 Nd4 41. Nxd4 cxd4 42. c5 Qe7 43. Ra5 Qc7 44. Bc4+ Kh8 45. Bd5 Rf6 46. Ra2 Be8 47. Rc1 d3 48. Qxd3 Bxc5+ 49. Kh1 Qxb6 0-1

