[Event "Amsterdam"]
[Site "Amsterdam"]
[Date "1851.??.??"]
[Round "?"]
[White "Coopman, MM."]
[Black "Messemaker, Christiaan"]
[Result "1-0"]
[ECO "C00"]
[PlyCount "73"]
[EventDate "1851.??.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e6 2. f4 d5 3. exd5 exd5 4. Nf3 Bd6 5. d3 Ne7 6. Be2 Ng6 7. g3 0-0 8. d4 f6 9. h4 Ne7 10. c4 c5 11. cxd5 Nxd5 12. Bc4 Qe7+ 13. Kf2 Be6 14. Re1 Qf7 15. Qe2 Re8 16. Bxd5 Bxd5 17. Qxe8+ Qxe8 18. Rxe8+ Kf7 19. Re1 Nc6 20. dxc5 Bxc5+ 21. Be3 Bxe3+ 22. Rxe3 Bxf3 23. Rxf3 Nd4 24. Nc3 Rc8 25. Rd3 Nc6 26. Re1 b6 27. Rd7+ Kg6 28. g4 h6 29. h5+ Kh7 30. Re6 Kh8 31. Nb5 a5 32. Nd6 Nd4 33. Nxc8 Nxe6 34. f5 Nc5 35. Rd4 b5 36. Ne7 b4 37. Rd8+ 1-0

[Event "Amsterdam"]
[Site "Amsterdam"]
[Date "1851.??.??"]
[Round "?"]
[White "Coopman, MM."]
[Black "Seligmann, J."]
[Result "1-0"]
[ECO "C50"]
[PlyCount "61"]
[EventDate "1851.??.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 d6 5. c3 Bg4 6. h3 Bxf3 7. Qxf3 Nf6 8. d3 h6 9. Be3 Bb6 10. a4 0-0 11. b4 a5 12. b5 Na7 13. Bxb6 cxb6 14. Nd2 Nc8 15. d4 Ne7 16. Rad1 exd4 17. cxd4 Nxe4 18. Nxe4 d5 19. Bd3 dxe4 20. Bxe4 Rb8 21. Rfe1 Kh8 22. Bxb7 Qd7 23. Bc6 Qd6 24. Qe4 Ng6 25. Rd3 f5 26. Qf3 Rbd8 27. g3 Rf6 28. Re8+ Kh7 29. Rxd8 Qxd8 30. Qd5 Ne7 31. Qxd8 1-0

[Event "Amsterdam"]
[Site "Amsterdam"]
[Date "1851.??.??"]
[Round "?"]
[White "Coopman, MM."]
[Black "Van 't Kruys, Maarten"]
[Result "0-1"]
[ECO "B00"]
[PlyCount "104"]
[EventDate "1851.??.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 b6 2. d3 Bb7 3. f4 c5 4. Nf3 e6 5. Nc3 Nc6 6. Be2 Be7 7. 0-0 Nf6 8. e5 Ng8 9. Ne4 d5 10. exd6 Bxd6 11. Nfg5 Nf6 12. Bf3 Rb8 13. c3 0-0 14. Nxf6+ Qxf6 15. Be4 g6 16. Qf3 Na5 17. Bxb7 Nxb7 18. Qh3 Qg7 19. Re1 Rfe8 20. Bd2 h6 21. Nf3 Na5 22. c4 Nc6 23. Bc3 Nd4 24. Bxd4 cxd4 25. g3 g5 26. fxg5 hxg5 27. Qg4 f5 28. Qxg5 Qxg5 29. Nxg5 e5 30. Kg2 Kg7 31. Re2 Kg6 32. h4 Re7 33. g4 fxg4 34. Ne4 Bc7 35. Kg3 Rf8 36. Kxg4 Rf4+ 37. Kg3 Rh7 38. h5+ Rxh5 39. Rh2 Rxh2 40. Kxh2 Kf5 41. Re1 Rf3 42. Rd1 Rxd3 43. Ng3+ Rxg3 44. Kxg3 e4+ 45. Kf2 d3 46. b4 Bf4 47. Kg1 Ke5 48. c5 Kd4 49. cxb6 axb6 50. a4 Ke3 51. a5 Bg3 52. Rf1 Ke2 0-1

[Event "Amsterdam"]
[Site "Amsterdam"]
[Date "1851.??.??"]
[Round "?"]
[White "Coopman, MM."]
[Black "Van 't Kruys, Maarten"]
[Result "0-1"]
[ECO "B27"]
[PlyCount "92"]
[EventDate "1851.??.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 b6 2. Nf3 c5 3. d4 cxd4 4. Nxd4 e6 5. Bd3 Bb7 6. 0-0 Nc6 7. Nxc6 Bxc6 8. Nc3 Bc5 9. Qg4 g6 10. Be3 h5 11. Qe2 Ne7 12. Bxc5 bxc5 13. Bb5 Qb6 14. Rad1 a6 15. Bxc6 Qxc6 16. Qf3 d6 17. Rd2 Rd8 18. Qf6 Rf8 19. Rfd1 Rd7 20. e5 d5 21. Ne4 Nf5 22. Qg5 Re7 23. Nf6+ Kd8 24. c3 Kc8 25. b4 c4 26. a4 Rb7 27. Ne4 Qc7 28. Nc5 Ra7 29. Qf6 Qe7 30. Qxe7 Nxe7 31. f4 Kc7 32. Kf2 Kc6 33. h3 a5 34. g4 Rb8 35. Rb1 axb4 36. cxb4 hxg4 37. hxg4 Rh8 38. Ke3 Kb6 39. Kd4 Nc6+ 40. Kc3 Rh3+ 41. Kc2 Nxb4+ 42. Rxb4+ Kxc5 43. Rb8 Rxa4 44. Rc8+ Kb6 45. Rb8+ Kc6 46. Rf8 Ra2+ 0-1

[Event "Amsterdam"]
[Site "Amsterdam"]
[Date "1851.??.??"]
[Round "?"]
[White "Messemaker, Christiaan"]
[Black "Coopman, MM."]
[Result "0-1"]
[ECO "A85"]
[PlyCount "56"]
[EventDate "1851.??.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. Nc3 e6 4. a3 a5 5. e3 c6 6. Nf3 Be7 7. Be2 Bd6 8. d5 cxd5 9. cxd5 Qe7 10. Bc4 e5 11. Qb3 Na6 12. Bxa6 bxa6 13. Qb6 a4 14. Qa5 Bb7 15. 0-0 Rc8 16. Rd1 e4 17. Nd4 Qe5 18. f4 exf3 19. Nxf3 Qe7 20. Qxa4 0-0 21. Qb3 Rb8 22. Qc4 Ne4 23. Qd4 Rf6 24. Nxe4 fxe4 25. Ng5 Rh6 26. Nh3 Rf8 27. Nf4 Rxf4 28. exf4 Bc5 0-1

[Event "Amsterdam"]
[Site "Amsterdam"]
[Date "1851.??.??"]
[Round "?"]
[White "Messemaker, Christiaan"]
[Black "Coopman, MM."]
[Result "1/2-1/2"]
[ECO "A85"]
[PlyCount "75"]
[EventDate "1851.??.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. Nc3 e6 4. a3 a5 5. e3 d5 6. Nf3 c6 7. b3 Bd6 8. Be2 0-0 9. 0-0 Ne4 10. Bb2 Kh8 11. Ne1 Nd7 12. f4 Ndf6 13. Nd3 Nxc3 14. Bxc3 Ne4 15. Bb2 Rf6 16. Ne5 Bxe5 17. dxe5 Rf8 18. cxd5 cxd5 19. Bd4 Bd7 20. a4 Rc8 21. Rc1 Qe7 22. Qd3 Qb4 23. Rxc8 Rxc8 24. Rb1 Nc3 25. Bxc3 Rxc3 26. Qd4 Rxb3 27. Rxb3 Qxb3 28. Bd1 Qb4 29. Qxb4 axb4 30. Kf2 Kg8 31. Ke2 Kf8 32. Kd2 Ke8 33. Kc1 Kd8 34. Kb2 Kc7 35. Kb3 Bc6 36. g3 h6 37. Kxb4 b6 38. Be2 1/2-1/2

[Event "Amsterdam"]
[Site "Amsterdam"]
[Date "1851.??.??"]
[Round "?"]
[White "Van 't Kruys, Maarten"]
[Black "Coopman, MM."]
[Result "0-1"]
[ECO "A85"]
[PlyCount "104"]
[EventDate "1851.??.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 e6 2. c4 c6 3. Nc3 d5 4. e3 f5 5. a3 Nf6 6. Nf3 Bd6 7. Ne5 Nbd7 8. f4 0-0 9. Be2 Ne4 10. Nxe4 fxe4 11. h4 Nxe5 12. dxe5 Be7 13. g3 b5 14. cxb5 cxb5 15. Bd2 Qb6 16. b4 Bd7 17. Kf2 Rac8 18. Qb3 Qc7 19. Qb2 Qc2 20. Qd4 Qc7 21. Rac1 Qb7 22. Rxc8 Rxc8 23. Rc1 Rxc1 24. Bxc1 Qc7 25. Bb2 g6 26. Qd2 Kg7 27. h5 Be8 28. hxg6 hxg6 29. g4 Bd8 30. g5 Qf7 31. Kg3 Bb6 32. Bg4 Kf8 33. Qc1 Qd7 34. Bd4 Bxd4 35. exd4 Kg7 36. Qh1 Qc6 37. Qh6+ Kg8 38. Qh2 Qc3+ 39. Kh4 Bf7 40. Qh3 Qxd4 41. Qf1 a6 42. Qc1 Qf2+ 43. Kh3 e3 44. Qc8+ Kg7 45. Qd8 Qxf4 46. Qf6+ Qxf6 47. gxf6+ Kh6 48. Kh4 d4 49. Be2 g5+ 50. Kg3 Bg6 51. Bg4 Bf5 52. Bxf5 exf5 0-1

