[Event "BEL-NED email"]
[Site "ICCF email"]
[Date "2017.03.20"]
[Round "?.21"]
[White "Koopmans, Perry E"]
[Black "Thys, Hugo"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "1878"]
[BlackElo "1838"]
[PlyCount "63"]
[EventDate "2017.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Belgium"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "BEL"]

1. d4 Nf6 2. c4 c5 3. e3 cxd4 4. exd4 d5 5. Nc3 Nc6 6. Bg5 Be6 7. Be2 Qb6 8. Bxf6 Qxb2 9. Nxd5 exf6 10. Nc7+ Kd7 11. Nxa8 Nxd4 12. Rb1 Qc3+ 13. Kf1 Kc8 14. Bd3 Kb8 15. Ne2 Nxe2 16. Bxe2 Bc5 17. Bf3 Bc8 18. Bd5 Kxa8 19. Qb3 Qxb3 20. axb3 Rf8 21. b4 Bd6 22. g3 Bh3+ 23. Ke2 g5 24. Rb3 Kb8 25. c5 Be5 26. Rd1 h5 27. Re3 Bd7 28. Bc4 Ba4 29. Rd2 a6 30. Red3 Kc7 31. Re3 Bc6 32. Kf1 1/2-1/2

[Event "BEL-NED email"]
[Site "ICCF email"]
[Date "2017.03.20"]
[Round "?.21"]
[White "Thys, Hugo"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "A52"]
[WhiteElo "1838"]
[BlackElo "1878"]
[PlyCount "55"]
[EventDate "2017.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Belgium"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Nc6 5. Bf4 Bb4+ 6. Nc3 Qe7 7. Qb3 Na5 8. Qc2 Nxc4 9. a3 Qc5 10. e3 Nxa3 11. Rxa3 Bxa3 12. bxa3 f6 13. exf6 Nxf6 14. Bd3 d6 15. Ng5 h6 16. Bg6+ Kd7 17. Nf3 Qxa3 18. 0-0 Qc5 19. Rd1 Ke7 20. e4 Rd8 21. Be3 Qc6 22. Nd4 Qa6 23. e5 dxe5 24. Nf5+ Bxf5 25. Bc5+ Rd6 26. Qxf5 Rf8 27. Qxe5+ Kd8 28. Bxd6 1-0

[Event "NED AOW-18 email"]
[Site "ICCF email"]
[Date "2017.02.05"]
[Round "?"]
[White "Beijer, Berry"]
[Black "Koopmans, Perry E"]
[Result "1/2-1/2"]
[ECO "D47"]
[WhiteElo "1911"]
[BlackElo "1878"]
[PlyCount "59"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 e6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. Bd2 a6 10. a4 b4 11. Ne4 c5 12. Qb1 Rc8 13. b3 Be7 14. 0-0 a5 15. Nxf6+ Nxf6 16. Bb5+ Kf8 17. Rc1 Bxf3 18. gxf3 Qd5 19. e4 Qxd4 20. Bf4 Nh5 21. Rc4 Qd8 22. Be3 Qd6 23. Qd1 Qe5 24. Qd4 Qxd4 25. Bxd4 Nf4 26. Rc2 Rg8 27. Rac1 g5 28. Bxc5 Bxc5 29. Rxc5 Rd8 30. Kf1 1/2-1/2

[Event "NED AOW-18 email"]
[Site "ICCF email"]
[Date "2017.02.05"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Faber, Krine A"]
[Result "0-1"]
[ECO "A70"]
[WhiteElo "1878"]
[BlackElo "2098"]
[PlyCount "82"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. h3 0-0 9. Bd3 b5 10. Nxb5 Re8 11. 0-0 Nxe4 12. Re1 a6 13. Na3 Nf6 14. Rxe8+ Nxe8 15. Nc4 Bb7 16. Qb3 Bxd5 17. Bg5 Bf6 18. Bxf6 Qxf6 19. Be2 Nc6 20. Qd1 Bxc4 21. Bxc4 Rd8 22. b3 Nc7 23. Rc1 d5 24. Bf1 Qd6 25. Qd2 a5 26. Ng5 f6 27. Nf3 Kg7 28. Qc3 Ne6 29. h4 d4 30. Qd2 Nf4 31. a3 h5 32. Bb5 d3 33. Kh1 Ne2 34. Re1 Ne5 35. Nxe5 Qxe5 36. Bxd3 Rd4 37. f4 Ng3+ 38. Kh2 Qd6 39. Rd1 Nf5 40. Kg1 a4 41. Qc3 Nxh4 0-1

[Event "NED AOW-18 email"]
[Site "ICCF email"]
[Date "2017.02.05"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Knigge, Marcel"]
[Result "1-0"]
[ECO "E87"]
[WhiteElo "1878"]
[BlackElo "1709"]
[PlyCount "103"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 g6 2. c4 Nf6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. d5 Na6 8. Qd2 Nd7 9. 0-0-0 f5 10. g4 fxg4 11. fxg4 Nb6 12. g5 Qd7 13. h4 Na4 14. Nge2 N6c5 15. b3 Nxc3 16. Nxc3 Qe7 17. Qg2 Bd7 18. Be2 Be8 19. Kb1 a5 20. h5 Rf4 21. Bf3 Bd7 22. hxg6 hxg6 23. Rdf1 a4 24. b4 Nd3 25. Qd2 Nxb4 26. Ne2 Rxf3 27. Rxf3 Na6 28. Nc3 Bg4 29. Rg3 Qd7 30. Ka1 Bh5 31. Rb1 b6 32. Qc2 Nc5 33. Bxc5 bxc5 34. Nb5 Bf8 35. Ra3 Qe7 36. Rg1 Qf7 37. Qg2 Bg7 38. Rf1 Qd7 39. Nc3 Bf8 40. Qf2 Bg7 41. Qc2 Qh3 42. Rb1 Bf8 43. Nb5 Qd7 44. Rxa4 Rxa4 45. Qxa4 Qd8 46. Qc2 Qxg5 47. Nxc7 Be7 48. Ne6 Qe3 49. Qc1 Qxc1 50. Rxc1 Bf8 51. a4 Bh6 52. a5 1-0

[Event "NED AOW-18 email"]
[Site "ICCF email"]
[Date "2017.02.05"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Taffijn, Martien"]
[Result "1-0"]
[ECO "B94"]
[WhiteElo "1878"]
[BlackElo "1814"]
[PlyCount "41"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e5 7. Bxf6 Qxf6 8. Nd5 Qd8 9. Nf5 Bxf5 10. exf5 Nd7 11. g3 Be7 12. Bg2 0-0 13. 0-0 Nf6 14. c3 Rb8 15. a4 Nxd5 16. Bxd5 Qc7 17. Qh5 b5 18. axb5 axb5 19. Ra6 Rb6 20. Ra5 Rbb8 21. Rfa1 1-0

[Event "NED AOW-18 email"]
[Site "ICCF email"]
[Date "2017.02.05"]
[Round "?"]
[White "Miedema, Henk"]
[Black "Koopmans, Perry E"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1203"]
[BlackElo "1878"]
[PlyCount "58"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Nc3 e6 4. e3 c5 5. Bb5+ Bd7 6. Qe2 a6 7. Ba4 b5 8. Bb3 c4 9. 0-0 cxb3 10. cxb3 Be7 11. Bd2 Nc6 12. a4 bxa4 13. Nxa4 Qb8 14. Qd1 Qb7 15. Qc1 Qxb3 16. h3 0-0 17. Nc5 Bxc5 18. dxc5 Rfb8 19. Bc3 Ne4 20. Ra3 Nxc3 21. bxc3 Qc4 22. Qc2 Qxc5 23. Rb1 Rxb1+ 24. Qxb1 Qxa3 25. Qb7 Ra7 26. Qb1 Qxc3 27. Kh2 a5 28. Qb6 Qb4 29. Qxb4 axb4 0-1

[Event "NED FR50-B email"]
[Site "ICCF email"]
[Date "2016.12.19"]
[Round "?"]
[White "Hospers, Bert"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "E92"]
[WhiteElo "2005"]
[BlackElo "1879"]
[PlyCount "89"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Nf3 0-0 6. Be2 e5 7. d5 a5 8. 0-0 Na6 9. Bg5 h6 10. Be3 Ng4 11. Bc1 f5 12. Ne1 Nf6 13. f3 f4 14. Nd3 Nd7 15. b3 Ndc5 16. Nf2 Bf6 17. a3 Bh4 18. b4 Nd7 19. Bb2 b6 20. Nb5 Bxf2+ 21. Rxf2 Nab8 22. Bc3 Bb7 23. bxa5 bxa5 24. Qe1 Ba6 25. Bxa5 Bxb5 26. cxb5 Nc5 27. Bb4 Nbd7 28. Qf1 Qb8 29. Bd1 Qb6 30. a4 Rfb8 31. Bd2 Ra7 32. g3 fxg3 33. hxg3 h5 34. Kg2 Nb7 35. Qe1 Rba8 36. Qe3 Qxe3 37. Bxe3 Ndc5 38. f4 Ra5 39. fxe5 dxe5 40. Rf6 Rxb5 41. Rxg6+ Kh8 42. Bc2 Rb2 43. Rh1 Rxc2+ 44. Kg1 Kh7 45. Rg4 1-0

[Event "NED FR50-B email"]
[Site "ICCF email"]
[Date "2016.12.19"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Eshuis, Hans"]
[Result "0-1"]
[ECO "D44"]
[WhiteElo "1879"]
[BlackElo "2222"]
[PlyCount "54"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Nbd7 11. exf6 Bb7 12. g3 c5 13. d5 Nxf6 14. Bg2 Bh6 15. dxe6 Bxg2 16. Qxd8+ Rxd8 17. Bxf6 Bxh1 18. Bxh8 b4 19. Rd1 bxc3 20. exf7+ Kxf7 21. Rxd8 c2 22. Rd1 Bf3 23. Ra1 c1Q+ 24. Rxc1 Bxc1 25. Bc3 Ke6 26. h4 Kf5 27. Bg7 Ke4 0-1

[Event "NED FR50-B email"]
[Site "ICCF email"]
[Date "2016.12.19"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Knigge, Marcel"]
[Result "1-0"]
[ECO "E87"]
[WhiteElo "1879"]
[BlackElo "1675"]
[PlyCount "93"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. d5 Na6 8. Qd2 Nd7 9. 0-0-0 Ndc5 10. g4 f5 11. gxf5 gxf5 12. h4 Bf6 13. Bh3 f4 14. Bxc8 Rxc8 15. Bf2 Qe8 16. Nb5 Qh5 17. Nxa7 Rcd8 18. b4 Nd7 19. Qc3 Rf7 20. c5 Kh8 21. c6 bxc6 22. dxc6 Nb6 23. Qa3 Nb8 24. Qb3 Re7 25. Ne2 Na8 26. Rhg1 Na6 27. Rg4 Rg7 28. Rdg1 Rdg8 29. Qe6 Rf8 30. Qc4 Nb8 31. a4 Qf7 32. Qxf7 Rgxf7 33. a5 Na6 34. b5 Nb4 35. Kd2 d5 36. Bc5 dxe4 37. Bxf8 Rxf8 38. fxe4 Be7 39. Rg7 Bc5 40. Rd7 Bxg1 41. Nxg1 Rg8 42. Nf3 Rg2+ 43. Kc3 Na2+ 44. Kc4 Rg3 45. Nxe5 Rg8 46. Nf7+ Kg7 47. Nc8 1-0

[Event "NED FR50-B email"]
[Site "ICCF email"]
[Date "2016.12.19"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Lonnee, Gerard A"]
[Result "1/2-1/2"]
[ECO "A90"]
[WhiteElo "1879"]
[BlackElo "1830"]
[PlyCount "28"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. c4 e6 4. Bg2 c6 5. Nf3 d5 6. 0-0 Bd6 7. b3 Qe7 8. Bb2 0-0 9. Nbd2 b6 10. Qc2 Bb7 11. a3 Nbd7 12. b4 c5 13. dxc5 bxc5 14. Bxf6 Qxf6 1/2-1/2

[Event "NED FR50-B email"]
[Site "ICCF email"]
[Date "2016.12.19"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Miedema, Henk"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "1879"]
[BlackElo "1202"]
[PlyCount "25"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. e3 Nf6 4. Nc3 Bg4 5. f3 Be6 6. cxd5 Nxd5 7. Nge2 Nxc3 8. Nxc3 Bf5 9. e4 Bc8 10. Bf4 Nd7 11. Bc4 f6 12. Qb3 a6 13. Bf7# 1-0

[Event "NED FR50-B email"]
[Site "ICCF email"]
[Date "2016.12.19"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Van Rooijen, Mark LC"]
[Result "1/2-1/2"]
[ECO "D41"]
[WhiteElo "1879"]
[BlackElo "1749"]
[PlyCount "43"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nf3 e6 4. Nc3 c5 5. cxd5 cxd4 6. Qxd4 exd5 7. e4 Nc6 8. Bb5 dxe4 9. Qxd8+ Kxd8 10. Ng5 Ke8 11. Ngxe4 Nxe4 12. Nxe4 Bf5 13. Bxc6+ bxc6 14. Ng3 Bd3 15. Be3 Bb4+ 16. Bd2 Bc5 17. Rc1 Bb6 18. Rxc6 Kd7 19. Rc3 Rhe8+ 20. Kd1 Bb1 21. Rf3 Bxa2 22. b3 1/2-1/2

[Event "NED FR50-B email"]
[Site "ICCF email"]
[Date "2016.12.19"]
[Round "?"]
[White "Massy, Giel"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "E99"]
[WhiteElo "2134"]
[BlackElo "1879"]
[PlyCount "53"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3 f5 11. f3 Bf6 12. Nd3 f4 13. Bf2 c5 14. b4 b6 15. Nb5 Nb8 16. Qd2 a6 17. Nxd6 Qxd6 18. bxc5 bxc5 19. Bxc5 Qd8 20. Rab1 Nd7 21. Bf2 Kg7 22. c5 Nb8 23. Rb6 Nd7 24. Re6 Rf7 25. Rc1 Nf8 26. Rxf6 Rxf6 27. Nxe5 1-0

[Event "NED FR50-B email"]
[Site "ICCF email"]
[Date "2016.12.19"]
[Round "?"]
[White "Schulenberg, Henk AT"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "D17"]
[WhiteElo "2204"]
[BlackElo "1879"]
[PlyCount "81"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 dxc4 5. a4 Bf5 6. Nh4 Bc8 7. e3 e6 8. Bxc4 c5 9. 0-0 Nc6 10. Nf3 cxd4 11. Nxd4 Bd7 12. Qe2 Be7 13. Rd1 Qc7 14. Ncb5 Qe5 15. Nf3 Qb8 16. e4 e5 17. Bg5 Bg4 18. Bxf6 gxf6 19. h3 Bh5 20. Qe3 a6 21. Nc3 Nd4 22. g4 Bg6 23. Nd5 Nc2 24. Qb6 Nxa1 25. Nxf6+ Bxf6 26. Qxf6 Rg8 27. Rd5 Qc7 28. Rxe5+ Kf8 29. Ng5 Qxc4 30. Ne6+ Qxe6 31. Rxe6 h5 32. f4 Rg7 33. f5 Kg8 34. Re7 Bxf5 35. exf5 hxg4 36. Qe5 gxh3+ 37. Kh2 Rg2+ 38. Kxh3 Rg5 39. Kh4 Rg2 40. f6 Rc8 41. Qd5 1-0

[Event "NED FR50-B email"]
[Site "ICCF email"]
[Date "2016.12.19"]
[Round "?"]
[White "Vaessen, Jos"]
[Black "Koopmans, Perry E"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1815"]
[BlackElo "1879"]
[PlyCount "50"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. c3 Be7 5. Bxf6 Bxf6 6. d4 d5 7. Nf3 c5 8. Na3 cxd4 9. Nxd4 Qa5 10. Nb1 Nc6 11. Qd2 Nxd4 12. cxd4 Qxd2+ 13. Nxd2 Bxd4 14. Rd1 Bf5 15. Rc1 Kd7 16. e3 Bb2 17. Rc5 Rhc8 18. Rxd5+ Ke6 19. Rb5 Rc1+ 20. Ke2 Rc2 21. Rxb7 Rd8 22. Kf3 Rdxd2 23. Rxa7 Be5 24. e4 Rc3+ 25. Bd3 Rcxd3# 0-1

[Event "NED FR50-B email"]
[Site "ICCF email"]
[Date "2016.12.19"]
[Round "?"]
[White "Van Kreveld, Frank"]
[Black "Koopmans, Perry E"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1592"]
[BlackElo "1879"]
[PlyCount "46"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d3 d6 6. h3 h6 7. Nc3 Be6 8. Bxe6 fxe6 9. Na4 Bb6 10. Nxb6 axb6 11. Be3 Qe7 12. c3 Kd7 13. b4 g5 14. g4 Qg7 15. Nh2 h5 16. Qd2 hxg4 17. Nxg4 Rxh3 18. f3 Nxg4 19. fxg4 Qh7 20. Qc1 Rh1+ 21. Kf2 Qh2+ 22. Ke1 Rxf1+ 23. Kxf1 Rf8+ 0-1

[Event "LAT-NED email"]
[Site "ICCF email"]
[Date "2016.05.16"]
[Round "?.23"]
[White "Elsbergs, Janis"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "C78"]
[WhiteElo "1838"]
[BlackElo "1891"]
[PlyCount "79"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Latvia"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "LAT"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 d6 7. Ng5 d5 8. exd5 Nd4 9. Re1 Bd6 10. d3 0-0 11. Ne4 a5 12. Bg5 a4 13. c3 axb3 14. cxd4 bxa2 15. Nbc3 exd4 16. Rxa2 Rxa2 17. Nxa2 Be7 18. Bxf6 Bxf6 19. Nb4 Bb7 20. Qc2 Be7 21. Nc6 Bxc6 22. Qxc6 Qb8 23. Rc1 Bd6 24. g3 h6 25. Kg2 Re8 26. Nxd6 cxd6 27. b4 g6 28. h4 Kg7 29. Qd7 Qd8 30. Qxd8 Rxd8 31. Kf3 Kf6 32. Ke4 Re8+ 33. Kxd4 Re2 34. Rc6 Ke7 35. Rb6 Rxf2 36. Rxb5 Rf3 37. Rb7+ Ke8 38. Rc7 Rxg3 39. b5 Rg1 40. b6 1-0

[Event "NED FR-E email"]
[Site "ICCF email"]
[Date "2016.05.16"]
[Round "?"]
[White "Holtrop, Bernard"]
[Black "Koopmans, Perry E"]
[Result "1/2-1/2"]
[ECO "D12"]
[WhiteElo "2008"]
[BlackElo "1891"]
[PlyCount "42"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. Nc3 e6 6. Nh4 Bg6 7. Nxg6 hxg6 8. a3 Nbd7 9. c5 a5 10. Rb1 Be7 11. g3 e5 12. Bg2 b6 13. b4 axb4 14. axb4 bxc5 15. bxc5 Qc7 16. 0-0 0-0 17. h4 Rfb8 18. Rxb8+ Qxb8 19. Qc2 Nf8 20. Bh3 Ra7 21. Bd2 e4 1/2-1/2

[Event "LAT-NED email"]
[Site "ICCF email"]
[Date "2016.05.16"]
[Round "?.23"]
[White "Koopmans, Perry E"]
[Black "Elsbergs, Janis"]
[Result "1/2-1/2"]
[ECO "D24"]
[WhiteElo "1891"]
[BlackElo "1838"]
[PlyCount "52"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Latvia"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "LAT"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 a6 5. e3 b5 6. a4 b4 7. Nb1 e6 8. Bxc4 Bb7 9. 0-0 c5 10. b3 cxd4 11. exd4 Be7 12. Nbd2 Nbd7 13. Bb2 Nb6 14. Be2 Nbd5 15. Rc1 0-0 16. Ne5 Rc8 17. Bf3 Rxc1 18. Qxc1 Nf4 19. Re1 Qa8 20. Qd1 N6d5 21. g3 Nc3 22. Bxb7 Qxb7 23. Qf3 Qxf3 24. Ndxf3 Nfd5 25. Kg2 Rc8 26. Nd3 a5 1/2-1/2

[Event "NED FR-E email"]
[Site "ICCF email"]
[Date "2016.05.16"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Galje, Hans"]
[Result "1/2-1/2"]
[ECO "D40"]
[WhiteElo "1891"]
[BlackElo "2231"]
[PlyCount "72"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. e3 d5 5. Nc3 Nc6 6. a3 a6 7. dxc5 Bxc5 8. b4 Bd6 9. Bb2 0-0 10. cxd5 exd5 11. Be2 Re8 12. 0-0 Bg4 13. Rc1 Rc8 14. h3 Be6 15. b5 axb5 16. Nxb5 Bb8 17. Nbd4 Qe7 18. Nxe6 fxe6 19. a4 e5 20. Qb3 Kh8 21. Rfd1 Bd6 22. Nh4 g6 23. Nf3 Na5 24. Qb6 Rxc1 25. Rxc1 Nc6 26. a5 Rb8 27. Nh2 Bc7 28. Qb5 Nxa5 29. Ng4 Nxg4 30. Bxg4 Rd8 31. Ba3 Qg7 32. Bb4 Nc6 33. Qxb7 Bd6 34. Qxc6 Bxb4 35. Rb1 Bf8 36. Rb7 Rd6 1/2-1/2

[Event "NED FR-E email"]
[Site "ICCF email"]
[Date "2016.05.16"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Spierenburg, Pieter"]
[Result "1/2-1/2"]
[ECO "D07"]
[WhiteElo "1891"]
[BlackElo "2069"]
[PlyCount "77"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nc6 4. Nc3 Be7 5. Bf4 Nf6 6. e3 0-0 7. a3 Nh5 8. Bg3 a6 9. Rc1 Nxg3 10. hxg3 g6 11. b4 a5 12. b5 Nb8 13. c5 Nd7 14. Be2 h5 15. Qc2 Kg7 16. 0-0 Nf6 17. Ne5 Nd7 18. Nd3 Rh8 19. Rb1 b6 20. c6 Nf6 21. Ra1 Qf8 22. a4 Qg8 23. Ne5 Qh7 24. f3 Qh6 25. f4 Bb4 26. Bf3 g5 27. Be2 g4 28. Rac1 Bxc3 29. Qxc3 Ne4 30. Qe1 f6 31. Bd3 h4 32. Bxe4 dxe4 33. Nc4 h3 34. Qe2 h2+ 35. Kh1 Qh5 36. Qc2 Qd5 37. Ne5 f5 38. Rfd1 Rh6 39. Qb2 1/2-1/2

[Event "NED FR-E email"]
[Site "ICCF email"]
[Date "2016.05.16"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Van Rooijen, Mark LC"]
[Result "1-0"]
[ECO "D40"]
[WhiteElo "1891"]
[BlackElo "1767"]
[PlyCount "75"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c5 5. e3 Nc6 6. a3 a6 7. dxc5 Bxc5 8. b4 0-0 9. bxc5 Qa5 10. Bd2 Qxc5 11. cxd5 exd5 12. Be2 Bg4 13. 0-0 Rae8 14. h3 Bxf3 15. Bxf3 Ne7 16. Na4 Qd6 17. Bb4 Qe6 18. Nc5 Qb6 19. Rc1 a5 20. Na4 Qa6 21. Bc5 Qe6 22. Nb6 Rd8 23. Qb3 Rfe8 24. Rfd1 Nc6 25. Nxd5 Kh8 26. Bb6 Rc8 27. Qb5 Nxd5 28. Bxd5 Qf6 29. Bxa5 Nxa5 30. Qxa5 b6 31. Rxc8 Rxc8 32. Qa7 Kg8 33. Qb7 Rf8 34. Rb1 Qe5 35. Rxb6 Qa1+ 36. Kh2 Qxa3 37. Qc7 Kh8 38. Rb8 1-0

[Event "NED FR-E email"]
[Site "ICCF email"]
[Date "2016.05.16"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Verlinde, Philip"]
[Result "1/2-1/2"]
[ECO "D43"]
[WhiteElo "1891"]
[BlackElo "2266"]
[PlyCount "60"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 h6 6. Bh4 dxc4 7. e4 g5 8. Bg3 b5 9. Be2 Bb7 10. Ne5 Nbd7 11. 0-0 Bg7 12. Nxd7 Nxd7 13. Bd6 a6 14. a4 Bf8 15. Bxf8 Kxf8 16. e5 c5 17. axb5 axb5 18. Rxa8 Qxa8 19. dxc5 Qc8 20. Qd6+ Kg7 21. Nxb5 Qc6 22. Qxc6 Bxc6 23. Bxc4 Rb8 24. Na7 Nxe5 25. Nxc6 Nxc6 26. Rb1 Kf6 27. Be2 Nd4 28. Bc4 Rb4 29. b3 Nc6 30. Be2 Nd4 1/2-1/2

[Event "NED FR-E email"]
[Site "ICCF email"]
[Date "2016.05.16"]
[Round "?"]
[White "Koval, Vyacheslav"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "2157"]
[BlackElo "1891"]
[PlyCount "73"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bh4 dxc4 7. e4 g5 8. Bg3 b5 9. Ne5 Bb7 10. h4 g4 11. Be2 h5 12. 0-0 Nbd7 13. Qc2 Nxe5 14. Bxe5 Bg7 15. b3 cxb3 16. axb3 0-0 17. Bg3 Qxd4 18. Rad1 Qc5 19. Bd6 Qb6 20. e5 Nh7 21. Bd3 f5 22. exf6 Nxf6 23. Qe2 Rfe8 24. Ne4 c5 25. Nxf6+ Bxf6 26. Bxb5 Bc6 27. Bc4 Bd5 28. Be5 Qd8 29. Qb2 Bxe5 30. Qxe5 Qxh4 31. Rxd5 exd5 32. Bxd5+ Kh7 33. Qc7+ Re7 34. Qf4 Rg8 35. Bxg8+ Kxg8 36. g3 Qh3 37. Rd1 1-0

[Event "NED FR-E email"]
[Site "ICCF email"]
[Date "2016.05.16"]
[Round "?"]
[White "Legemaat, Gert"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "2357"]
[BlackElo "1891"]
[PlyCount "123"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bh4 dxc4 7. e4 g5 8. Bg3 b5 9. Ne5 Bb7 10. Be2 Nbd7 11. 0-0 Bg7 12. Nxd7 Nxd7 13. Bd6 a6 14. a4 bxa4 15. e5 Bf8 16. Ne4 c5 17. Nxc5 Bd5 18. Bf3 Bxd6 19. Bxd5 Bxc5 20. Bxa8 Qxa8 21. dxc5 Nxc5 22. Qd6 Qd5 23. Qb8+ Qd8 24. Qxd8+ Kxd8 25. Rac1 Nd3 26. Rxc4 Nxe5 27. Re4 Ng6 28. Rxa4 Ke7 29. Rxa6 Rb8 30. Rb1 Rb4 31. g3 Kf6 32. b3 Ne7 33. Ra4 Rb5 34. b4 Nd5 35. Rb3 g4 36. Ra5 Rb7 37. b5 Ke5 38. h4 Nb6 39. Kg2 Kd5 40. Ra6 Kc5 41. Rc3+ Kd5 42. Rca3 Nc8 43. R3a5 Ke5 44. Ra8 Nd6 45. R8a7 Rb8 46. Rd7 Nc4 47. Ra6 Rxb5 48. Rxf7 Rb2 49. Ra1 Ne3+ 50. Kg1 Nf5 51. Re1+ Kd6 52. Rf6 Nd4 53. Re4 Nf3+ 54. Kg2 h5 55. Rexe6+ Kc5 56. Rc6+ Kd4 57. Rfd6+ Ke4 58. Rb6 Ra2 59. Ra6 Rb2 60. Rdb6 Rc2 61. Re6+ Kf5 62. Rh6 1-0

[Event "NED FR-E email"]
[Site "ICCF email"]
[Date "2016.05.16"]
[Round "?"]
[White "Van Donk, Diederik"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "C45"]
[BlackElo "1891"]
[PlyCount "119"]
[EventDate "2016.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bc4 Ne5 8. Be2 Qg6 9. 0-0 d6 10. f3 0-0 11. Kh1 d5 12. Nd2 dxe4 13. Nxe4 Bb6 14. a4 N5c6 15. Nxc6 Nxc6 16. Bf4 Be6 17. b4 a5 18. b5 Rad8 19. Qc1 Ne7 20. c4 Bd4 21. Ra2 Rd7 22. Bd3 f5 23. Ng5 Kh8 24. Nxe6 Qxe6 25. Re2 Qf7 26. c5 Nd5 27. Bd2 Nb4 28. Bc4 Qh5 29. Rd1 Bxc5 30. Bc3 Bd6 31. h3 Qh4 32. Re6 b6 33. Rd4 f4 34. Rd2 Rdd8 35. Qb1 Qg5 36. Qe4 Rc8 37. Bb3 Rcd8 38. Rdxd6 cxd6 39. Re7 d5 40. Rxg7 Qxg7 41. Bxg7+ Kxg7 42. Qe7+ Kg6 43. h4 Kf5 44. Qc7 Rb8 45. Qxh7+ Ke5 46. Qg7+ Kf5 47. h5 Rg8 48. Qf7+ Ke5 49. h6 Rbc8 50. h7 Rh8 51. Qg7+ Kf5 52. Kh2 Ke6 53. g4 fxg3+ 54. Kxg3 Kd6 55. f4 Rhe8 56. Bd1 Rh8 57. Bh5 Rc3+ 58. Qxc3 Rxh7 59. Bg4 Re7 60. Qf6+ 1-0

[Event "AUS-NED email"]
[Site "ICCF email"]
[Date "2016.02.08"]
[Round "?.13"]
[White "Choo, Min Wang"]
[Black "Koopmans, Perry E"]
[Result "0-1"]
[ECO "A28"]
[BlackElo "1896"]
[PlyCount "18"]
[EventDate "2016.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Australian Kangaroos"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "AUS"]
[BlackTeamCountry "NED"]

1. c4 e5 2. Nc3 Nf6 3. d3 d5 4. cxd5 Nxd5 5. Nf3 Nc6 6. Qa4 Nb6 7. Qc2 Nd4 8. Nxd4 exd4 9. Ne4 f5 0-1

[Event "AUS-NED email"]
[Site "ICCF email"]
[Date "2016.02.08"]
[Round "?.12"]
[White "Fraser, Wayne"]
[Black "Koopmans, Perry E"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "1807"]
[BlackElo "1896"]
[PlyCount "60"]
[EventDate "2016.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Australian Kangaroos"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "AUS"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. cxd5 exd5 5. Bg5 c6 6. Nc3 Be7 7. e3 Nbd7 8. Qc2 0-0 9. Bd3 Re8 10. 0-0 Nf8 11. a3 a5 12. Rac1 Ng6 13. Ne2 Bg4 14. Ne5 Nxe5 15. dxe5 Bxe2 16. Qxe2 Nd7 17. Bxe7 Rxe7 18. f4 g6 19. Qg4 Qb6 20. Qe2 f6 21. Qd2 Rf8 22. Rce1 fxe5 23. fxe5 Rxf1+ 24. Rxf1 Nxe5 25. Kh1 Nxd3 26. Qxd3 Qxb2 27. Qd1 Rxe3 28. Qg4 Qe2 29. Qf4 Re8 30. Qf7+ Kh8 1/2-1/2

[Event "AUS-NED email"]
[Site "ICCF email"]
[Date "2016.02.08"]
[Round "?.13"]
[White "Koopmans, Perry E"]
[Black "Choo, Min Wang"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "1896"]
[PlyCount "17"]
[EventDate "2016.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Australian Kangaroos"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "AUS"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 c6 6. Be3 0-0 7. Qd2 a6 8. a4 Nbd7 9. Nge2 1-0

[Event "AUS-NED email"]
[Site "ICCF email"]
[Date "2016.02.08"]
[Round "?.12"]
[White "Koopmans, Perry E"]
[Black "Fraser, Wayne"]
[Result "1-0"]
[ECO "D88"]
[WhiteElo "1896"]
[BlackElo "1807"]
[PlyCount "63"]
[EventDate "2016.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Australian Kangaroos"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "AUS"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 0-0 10. 0-0 Na5 11. Bd3 cxd4 12. cxd4 Nc6 13. Bb5 Bd7 14. Rb1 a6 15. Bxc6 Bxc6 16. d5 Bb5 17. a4 Bxe2 18. Qxe2 Qd7 19. Rb4 Rac8 20. Rfb1 Rfe8 21. a5 Qc7 22. Qa2 Qc2 23. Qxc2 Rxc2 24. Rxb7 Ra2 25. g3 Rxa5 26. Rxe7 Kf8 27. Ra7 Ra1 28. Bc5+ Kg8 29. Rxa1 Bxa1 30. d6 Bf6 31. d7 Rd8 32. e5 1-0

[Event "NED-NOR email"]
[Site "ICCF email"]
[Date "2016.01.18"]
[Round "?.22"]
[White "Bu, Knut Steinar"]
[Black "Koopmans, Perry E"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "1677"]
[BlackElo "1896"]
[PlyCount "119"]
[EventDate "2016.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Norway"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "NOR"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c3 b5 7. Bb3 Na5 8. Bc2 Be7 9. 0-0 0-0 10. h3 c5 11. a4 Bd7 12. Nbd2 Qc7 13. Nb3 Nc6 14. axb5 axb5 15. Be3 Rxa1 16. Qxa1 Qb7 17. Qc1 Ra8 18. d4 cxd4 19. cxd4 exd4 20. Nbxd4 Nb4 21. Bb1 Nxe4 22. Re1 d5 23. Ne5 Be8 24. f3 Nd6 25. b3 Bh4 26. Re2 f6 27. Ng4 Qb6 28. Nf5 Bg5 29. Bxb6 Bxc1 30. Nxd6 Bg6 31. Bxg6 hxg6 32. Nxb5 Rb8 33. Re6 Kf7 34. Nc7 Rb7 35. Rd6 Bf4 36. Rd7+ Kg8 37. Rd8+ Kf7 38. Na8 Ke7 39. Rh8 g5 40. Kf1 Kd6 41. Rc8 Kd7 42. Rd8+ Ke7 43. Rg8 Kf7 44. Rc8 Ke7 45. Ne3 Kd7 46. Rg8 Ke6 47. Ke2 Nc6 48. Nc2 Bd6 49. Rc8 Kd7 50. Rh8 Ke6 51. g4 Kd7 52. Ke3 Bh2 53. Ke2 Bd6 54. Kd2 Ke6 55. Kd3 Kf7 56. Ne3 Ne5+ 57. Kc3 Bf8 58. f4 Ng6 59. Rxf8+ Nxf8 60. Nxd5 1/2-1/2

[Event "NED-NOR email"]
[Site "ICCF email"]
[Date "2016.01.18"]
[Round "?.22"]
[White "Koopmans, Perry E"]
[Black "Bu, Knut Steinar"]
[Result "1-0"]
[ECO "E18"]
[WhiteElo "1896"]
[BlackElo "1677"]
[PlyCount "43"]
[EventDate "2016.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Norway"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NOR"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Be7 5. Bg2 0-0 6. 0-0 b6 7. Nc3 Bb7 8. Ne5 Nbd7 9. Bf4 c5 10. cxd5 Nxd5 11. Nxd5 exd5 12. Rc1 Nxe5 13. Bxe5 f6 14. Bf4 Rc8 15. dxc5 Bxc5 16. Bh3 f5 17. Bg2 Qd7 18. a4 Rce8 19. b4 Bxb4 20. Rc7 Qe6 21. Rxb7 a6 22. Bxd5 1-0

[Event "FIN-NED email"]
[Site "ICCF email"]
[Date "2015.11.07"]
[Round "?.40"]
[White "Arppi, Merja Hannele"]
[Black "Koopmans, Perry E"]
[Result "1/2-1/2"]
[ECO "C99"]
[WhiteElo "1875"]
[BlackElo "1897"]
[PlyCount "105"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Finland"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "FIN"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. h3 0-0 9. c3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4 Nc6 14. Nb3 Bb7 15. d5 Nb8 16. Bd2 Nbd7 17. a4 Rfc8 18. Bd3 bxa4 19. Rxa4 Bd8 20. Ba5 Qb8 21. Bxd8 Rxd8 22. Nfd2 Qc7 23. Qa1 Ne8 24. Rc1 Qb6 25. Qa3 Rac8 26. Rcc4 Rxc4 27. Nxc4 Qc7 28. Nca5 Rb8 29. Rc4 Qb6 30. Rc3 Ba8 31. Nc6 Bxc6 32. dxc6 Ndf6 33. Na5 Nc7 34. Nb7 d5 35. Nc5 Qxb2 36. Nxa6 Qxa3 37. Rxa3 Ra8 38. Rb3 Nxa6 39. Bxa6 Ne8 40. exd5 Kf8 41. Rb6 Nc7 42. Bc4 Ke7 43. Rb2 Ra1+ 44. Kh2 Ra4 45. Rc2 Kd6 46. f3 Ra5 47. Ba2 Ra3 48. Kg3 g6 49. Kf2 f5 50. Ke2 Nb5 51. Kf1 h5 52. Bc4 Nc7 53. Ke2 1/2-1/2

[Event "FIN-NED email"]
[Site "ICCF email"]
[Date "2015.11.07"]
[Round "?.40"]
[White "Koopmans, Perry E"]
[Black "Arppi, Merja Hannele"]
[Result "1/2-1/2"]
[ECO "D46"]
[WhiteElo "1897"]
[BlackElo "1875"]
[PlyCount "50"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Finland"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "FIN"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. e3 b6 6. Bd3 Bb7 7. 0-0 Be7 8. b3 0-0 9. Bb2 Nbd7 10. Qc2 Re8 11. Ne5 Rc8 12. Rad1 c5 13. cxd5 cxd4 14. exd4 Nxe5 15. dxe5 Nxd5 16. Bxh7+ Kf8 17. Be4 Bb4 18. Bxd5 exd5 19. Qd3 d4 20. Ne2 Rxe5 21. a3 Bc5 22. b4 Rxe2 23. Qxe2 Qg5 24. f4 d3+ 25. bxc5 dxe2 1/2-1/2

[Event "NED-UKR email"]
[Site "ICCF email"]
[Date "2015.11.02"]
[Round "?.33"]
[White "Koopmans, Perry E"]
[Black "Pavlyk, Nazariy"]
[Result "0-1"]
[ECO "E19"]
[WhiteElo "1897"]
[PlyCount "92"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Ukraine"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "UKR"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 f5 10. b3 Bf6 11. Bb2 a5 12. Qd2 d6 13. Rad1 Nd7 14. Ne1 Qc8 15. Nd3 a4 16. b4 b5 17. Bxb7 Qxb7 18. c5 Rfe8 19. a3 Rad8 20. Ba1 Qe4 21. f3 Bxd4+ 22. Nf2 Bxf2+ 23. Kxf2 Qc6 24. Qg5 e5 25. cxd6 cxd6 26. Qxf5 Nb6 27. Qd3 Re7 28. Bb2 d5 29. Bc1 h6 30. Kg1 d4 31. e3 Nc4 32. e4 g5 33. Rf2 Kh7 34. Kh1 Rf7 35. Re1 Rg8 36. Ref1 Qe6 37. Rc2 Rgf8 38. Rff2 Nd6 39. Rc6 Rc8 40. Rfc2 Rxc6 41. Rxc6 Qb3 42. Qxb3 axb3 43. Rxd6 Rc7 44. Bb2 Rc2 45. Bxd4 exd4 46. Rxd4 b2 0-1

[Event "NED-UKR email"]
[Site "ICCF email"]
[Date "2015.11.02"]
[Round "?.33"]
[White "Pavlyk, Nazariy"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "E69"]
[BlackElo "1897"]
[PlyCount "77"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Ukraine"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "UKR"]
[BlackTeamCountry "NED"]

1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d6 6. d4 Nbd7 7. 0-0 e5 8. e4 c6 9. h3 Qb6 10. c5 dxc5 11. dxe5 Ne8 12. Na4 Qa6 13. Qc2 b6 14. Bf4 Nc7 15. Rad1 Re8 16. b3 Nxe5 17. Bxe5 Bxe5 18. Nxe5 Rxe5 19. f4 Re8 20. f5 Nb5 21. Qc1 Nd4 22. Qh6 gxf5 23. Qg5+ Kh8 24. Qf6+ Kg8 25. Rf4 Ne2+ 26. Kf2 Nxf4 27. gxf4 Be6 28. Bf3 fxe4 29. Bxe4 Bg4 30. Qg5+ Kh8 31. Bd3 Re2+ 32. Kf1 Re6 33. Bxa6 Bxd1 34. Bd3 Rg8 35. Qh4 Rg7 36. Nb2 Bf3 37. f5 Re8 38. f6 Bg2+ 39. Kf2 1-0

[Event "NED-TUR email"]
[Site "ICCF email"]
[Date "2015.07.06"]
[Round "?.34"]
[White "Koopmans, Perry E"]
[Black "Sen, Ahmet"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1877"]
[BlackElo "1761"]
[PlyCount "35"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Turkey"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "TUR"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 0-0 6. 0-0 d5 7. exd5 Nxd5 8. Re1 a6 9. Nxe5 Nxe5 10. Rxe5 c6 11. Nd2 Bd6 12. Re1 Qh4 13. g3 Qh3 14. Ne4 Bc7 15. d4 h6 16. Bf1 Qf5 17. c4 Nf6 18. Nxf6+ 1-0

[Event "NED-TUR email"]
[Site "ICCF email"]
[Date "2015.07.06"]
[Round "?.34"]
[White "Sen, Ahmet"]
[Black "Koopmans, Perry E"]
[Result "1/2-1/2"]
[ECO "C77"]
[WhiteElo "1761"]
[BlackElo "1877"]
[PlyCount "64"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Turkey"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "TUR"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. d3 d6 7. c3 0-0 8. Nbd2 b5 9. Bc2 d5 10. exd5 Nxd5 11. Re1 Bg4 12. h3 Bxf3 13. Nxf3 Bf6 14. a4 Qd6 15. Ng5 Bxg5 16. Bxg5 h6 17. Bd2 b4 18. Bb3 Rab8 19. a5 Nf4 20. Bxf4 exf4 21. d4 Rb5 22. Ba4 Rxa5 23. Qd3 g6 24. Bxc6 Rxa1 25. Rxa1 Qxc6 26. Rxa6 Qe8 27. Ra1 bxc3 28. bxc3 Qe6 29. Qf3 g5 30. h4 Kg7 31. Ra5 f6 32. Rc5 Rf7 1/2-1/2

[Event "NED-SCO email"]
[Site "ICCF email"]
[Date "2015.05.25"]
[Round "?.17"]
[White "Gilbert, Robert"]
[Black "Koopmans, Perry E"]
[Result "0-1"]
[ECO "D14"]
[WhiteElo "1790"]
[BlackElo "1860"]
[PlyCount "84"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Scotland"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "SCO"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Bb5 Nd7 9. Qa4 Qb6 10. Nh4 Bg6 11. 0-0-0 Bb4 12. Nxg6 hxg6 13. Bxc6 bxc6 14. a3 Bxc3 15. bxc3 Qb5 16. Qb4 Nb6 17. Rhe1 a5 18. Qxb5 cxb5 19. Kb2 Rc8 20. Kb3 f6 21. h3 Na4 22. Rc1 g5 23. Bg3 Rc4 24. Re2 Kf7 25. f3 e5 26. Rec2 Rhc8 27. dxe5 fxe5 28. Bxe5 Nc5+ 29. Ka2 Nd3 30. Rd1 Nxe5 31. Rxd5 R8c5 32. Rxc5 Rxc5 33. Kb3 Rc4 34. Rd2 a4+ 35. Kc2 Rc5 36. f4 Nc4 37. Rd7+ Ke6 38. Rxg7 Nxe3+ 39. Kd3 gxf4 40. g4 Rxc3+ 41. Ke2 f3+ 42. Kf2 Nd1+ 0-1

[Event "NED-SCO email"]
[Site "ICCF email"]
[Date "2015.05.25"]
[Round "?.17"]
[White "Koopmans, Perry E"]
[Black "Gilbert, Robert"]
[Result "1-0"]
[ECO "B97"]
[WhiteElo "1860"]
[BlackElo "1790"]
[PlyCount "55"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Scotland"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "SCO"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Be2 Qb6 8. Nb3 Be7 9. f4 h6 10. Bxf6 Bxf6 11. Qd3 Nd7 12. 0-0-0 Be7 13. Nd2 Nc5 14. Qd4 Bf6 15. e5 dxe5 16. fxe5 Bg5 17. Kb1 0-0 18. Nc4 Qc7 19. Rhf1 Be7 20. Nd6 b5 21. Nce4 Nxe4 22. Qxe4 Bxd6 23. exd6 Qb6 24. Bd3 f5 25. Qxa8 Bb7 26. Qxf8+ Kxf8 27. Bxf5 Bxg2 28. d7 1-0

[Event "NED-SLO email"]
[Site "ICCF email"]
[Date "2015.05.18"]
[Round "?.30"]
[White "Kogoj, Boris"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "D48"]
[WhiteElo "1992"]
[BlackElo "1860"]
[PlyCount "139"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Slovenia"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "SLO"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. 0-0 a6 10. e4 c5 11. d5 c4 12. Bc2 Qc7 13. dxe6 fxe6 14. Ng5 Nc5 15. e5 Qxe5 16. Re1 Qd6 17. Qxd6 Bxd6 18. Be3 0-0 19. Rad1 Nd3 20. Bxd3 cxd3 21. Rxd3 Bd5 22. Nxd5 exd5 23. g3 Rfe8 24. Kg2 Rac8 25. Nf3 Rc2 26. Rb1 Ng4 27. Bd4 Re4 28. Rc3 Rxc3 29. bxc3 Re2 30. a4 bxa4 31. Rb6 Be7 32. Rxa6 a3 33. h3 Nf6 34. Ne5 Kf8 35. Ra8+ Ne8 36. Nd3 Kf7 37. Ra7 Nd6 38. Rxa3 Nb5 39. Ra5 Nxd4 40. cxd4 Rd2 41. Ne5+ Ke6 42. Nf3 Rd3 43. g4 Bf6 44. Ra6+ Ke7 45. Ne5 Rd2 46. Ra7+ Ke6 47. g5 Be7 48. h4 Bf8 49. Nc6 Kd6 50. Nd8 Be7 51. Ra6+ Kd7 52. Nf7 Kc8 53. Ra8+ Kd7 54. Ne5+ Ke6 55. Re8 Kd6 56. Nf3 Re2 57. Rg8 g6 58. Rg7 Ke6 59. Rxh7 Re4 60. Rg7 Kf5 61. Kh3 Re6 62. Ne5 Bd6 63. f3 Re7 64. Nf7 Ba3 65. Nh6+ Kf4 66. Rxg6 Kxf3 67. Rf6+ Ke4 68. Nf5 Re8 69. g6 Bb4 70. g7 1-0

[Event "NED-SLO email"]
[Site "ICCF email"]
[Date "2015.05.18"]
[Round "?.30"]
[White "Koopmans, Perry E"]
[Black "Kogoj, Boris"]
[Result "0-1"]
[ECO "B95"]
[WhiteElo "1860"]
[BlackElo "1992"]
[PlyCount "130"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Slovenia"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "SLO"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Be2 Be7 8. 0-0 0-0 9. Qd3 h6 10. Bd2 Qc7 11. f4 b5 12. Bf3 Bb7 13. a4 b4 14. Nce2 Nbd7 15. Bxb4 Nc5 16. Bxc5 dxc5 17. Qc4 Rab8 18. c3 Rfd8 19. Rfd1 Bxe4 20. Bxe4 Nxe4 21. Nxe6 Rxd1+ 22. Rxd1 Qb7 23. h3 Kh8 24. Nc7 Nd6 25. Qxc5 Rc8 26. Rxd6 Rxc7 27. Rd8+ Bxd8 28. Qf8+ Kh7 29. Qxd8 Rd7 30. Qa5 Rd2 31. Qe5 Rxb2 32. Kf2 Qc6 33. h4 Qc4 34. g4 a5 35. h5 Ra2 36. Qe3 Rxa4 37. Nd4 Qd5 38. Qd3+ Kh8 39. Ke3 Qc5 40. Qd2 Rc4 41. Kd3 a4 42. Qe1 a3 43. Qe8+ Kh7 44. Qe4+ g6 45. hxg6+ fxg6 46. Qb7+ Qc7 47. Qb3 a2 48. Qxa2 Rxc3+ 49. Kd2 Rg3 50. Ne2 Qd7+ 51. Ke1 Rxg4 52. Qc4 Qe7 53. Kf1 Qb7 54. Qe6 h5 55. Kf2 Rg2+ 56. Ke3 h4 57. f5 Qa7+ 58. Kd3 Qa3+ 59. Kd2 Qb2+ 60. Kd1 Qb1+ 61. Kd2 Qxf5 62. Qe7+ Kg8 63. Qe8+ Kg7 64. Qe7+ Qf7 65. Qxh4 Qa2+ 0-1

[Event "JPN-NED email"]
[Site "ICCF email"]
[Date "2015.04.20"]
[Round "?.8"]
[White "Koopmans, Perry E"]
[Black "Tago, Shunnichi"]
[Result "1-0"]
[ECO "A52"]
[WhiteElo "1860"]
[BlackElo "1608"]
[PlyCount "49"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Japan"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "JPN"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 Nc6 5. Nf3 Bb4+ 6. Nc3 Bxc3+ 7. bxc3 Qe7 8. Qd5 0-0 9. h3 Qa3 10. Qd3 Qb2 11. Rb1 Nxf2 12. Rxb2 Nxd3+ 13. exd3 b6 14. Be2 Bb7 15. 0-0 Rac8 16. Nd4 Ne7 17. Bg4 Ng6 18. Bxd7 Rcd8 19. Bf5 Rfe8 20. Bg5 Rb8 21. Nb5 Rxe5 22. d4 Rxf5 23. Rxf5 Re8 24. Nxc7 Be4 25. Nxe8 1-0

[Event "JPN-NED email"]
[Site "ICCF email"]
[Date "2015.04.20"]
[Round "?.8"]
[White "Tago, Shunnichi"]
[Black "Koopmans, Perry E"]
[Result "0-1"]
[ECO "C77"]
[WhiteElo "1608"]
[BlackElo "1860"]
[PlyCount "60"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Japan"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "JPN"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c3 b5 7. Bc2 Be7 8. h3 Nb8 9. Bb3 Nbd7 10. 0-0 Bb7 11. Bg5 h6 12. Bh4 Nh5 13. Bg3 Nxg3 14. fxg3 0-0 15. Nbd2 a5 16. a3 Nc5 17. Qe2 Nxb3 18. Nxb3 c5 19. Rad1 Qc7 20. Nbd2 a4 21. Rc1 f5 22. exf5 Rxf5 23. g4 Rf4 24. Ne4 c4 25. Rce1 Raf8 26. Qe3 cxd3 27. Qxd3 d5 28. Ng3 Bc5+ 29. Kh1 e4 30. Nxe4 dxe4 0-1

[Event "FRA-NED email"]
[Site "ICCF email"]
[Date "2015.03.16"]
[Round "?.31"]
[White "Koopmans, Perry E"]
[Black "Mondy, Marcel"]
[Result "1/2-1/2"]
[ECO "E51"]
[WhiteElo "1859"]
[BlackElo "1946"]
[PlyCount "65"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "France"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "FRA"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 0-0 6. Bd3 Nc6 7. 0-0 dxc4 8. Bxc4 Bd6 9. e4 e5 10. d5 Ne7 11. Re1 h6 12. h3 a6 13. a3 Bd7 14. Be3 b5 15. Bd3 c6 16. dxc6 Bxc6 17. Rc1 Ng6 18. Bb1 Bb7 19. Nh2 b4 20. axb4 Bxb4 21. Ng4 Qe7 22. Qf3 Nxg4 23. Qxg4 Bc8 24. Qf3 Be6 25. Red1 Bxc3 26. Rxc3 Rfb8 27. Rd2 Rc8 28. Rxc8+ Rxc8 29. Kh2 a5 30. g3 Qb4 31. Qh5 Bc4 32. Qd1 Rb8 33. Qg4 1/2-1/2

[Event "FRA-NED email"]
[Site "ICCF email"]
[Date "2015.03.16"]
[Round "?.31"]
[White "Mondy, Marcel"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "E07"]
[WhiteElo "1946"]
[BlackElo "1859"]
[PlyCount "63"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "France"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "FRA"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. Nc3 e6 5. g3 Nbd7 6. Bg2 dxc4 7. 0-0 Be7 8. e4 0-0 9. e5 Nd5 10. a4 Qa5 11. Bd2 Qb6 12. Qb1 Qb3 13. a5 h6 14. Rc1 Rd8 15. Be1 c5 16. dxc5 Bxc5 17. Rd1 Nxc3 18. Bxc3 Qb5 19. Nd4 Bxd4 20. Rxd4 Re8 21. Qe4 Nxe5 22. a6 Nc6 23. Rxc4 Re7 24. Qh4 f6 25. b4 Rd7 26. Qe4 Nd8 27. Be1 Rd6 28. Qc2 Rc6 29. Bxc6 bxc6 30. Rc5 Qb8 31. b5 Nf7 32. bxc6 1-0

[Event "AUT-NED email"]
[Site "ICCF email"]
[Date "2015.01.11"]
[Round "?.36"]
[White "Hoeher, Christian"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2058"]
[BlackElo "1859"]
[PlyCount "63"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Austria"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "AUT"]
[BlackTeamCountry "NED"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Nd7 6. 0-0 Ne7 7. Nbd2 Nc8 8. c3 Be7 9. Ne1 0-0 10. Bd3 Bg6 11. Bxg6 hxg6 12. Qg4 c5 13. Ndf3 Qb6 14. Nd3 Qb5 15. Nf4 Ncb6 16. h4 Rfe8 17. a4 Nxa4 18. h5 gxh5 19. Nxh5 g6 20. Bh6 Qc6 21. Qf4 Nxb2 22. Bg7 gxh5 23. Qh6 f5 24. exf6 Bxf6 25. Bxf6 Nxf6 26. Qg6+ Kf8 27. Qxf6+ Kg8 28. Qg6+ Kf8 29. Qh7 e5 30. Nxe5 Rxe5 31. dxe5 Re8 32. Rfb1 1-0

[Event "AUT-NED email"]
[Site "ICCF email"]
[Date "2015.01.11"]
[Round "?.36"]
[White "Koopmans, Perry E"]
[Black "Hoeher, Christian"]
[Result "0-1"]
[ECO "E58"]
[WhiteElo "1859"]
[BlackElo "2058"]
[PlyCount "100"]
[EventDate "2015.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Austria"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "AUT"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 0-0 6. Bd3 c5 7. 0-0 Nc6 8. a3 Bxc3 9. bxc3 Qc7 10. cxd5 exd5 11. a4 Re8 12. Ba3 c4 13. Bc2 Ne4 14. Bxe4 Rxe4 15. Nd2 Re8 16. e4 dxe4 17. Re1 Bf5 18. Nxc4 Rad8 19. Qc2 f6 20. Ne3 Bg6 21. Rac1 f5 22. g3 f4 23. gxf4 Qxf4 24. Rb1 Qg5+ 25. Kf1 b6 26. Rb5 Qf4 27. Kg1 Rc8 28. Qe2 Nd8 29. Bc1 Qf7 30. Bd2 Ne6 31. Ng2 Nc7 32. Rg5 Nd5 33. c4 Nf6 34. Rc1 Bh5 35. Qf1 h6 36. Rb5 Bf3 37. a5 e3 38. Bxe3 Ng4 39. h3 Nxe3 40. fxe3 Rc6 41. axb6 axb6 42. Rc2 Rg6 43. Re5 Rxe5 44. dxe5 Qf5 45. Rf2 Rg3 46. c5 Qe4 47. cxb6 Qxe3 48. Kh2 Qxe5 49. Kg1 Qe3 50. Kh2 Bxg2 0-1

[Event "NED SC2014 email"]
[Site "ICCF email"]
[Date "2014.11.03"]
[Round "?"]
[White "Bes, Rob NM"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "1960"]
[BlackElo "1854"]
[PlyCount "117"]
[EventDate "2014.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 0-0 10. 0-0-0 a5 11. a4 Nc6 12. Kb1 Nb4 13. g4 Qc8 14. g5 Nh5 15. Rg1 Kh8 16. Nc1 d5 17. Nxd5 Bxd5 18. exd5 Rd8 19. c4 Bc5 20. Bxc5 Qxc5 21. Rg4 Nf4 22. Re1 Re8 23. Na2 Nxa2 24. Kxa2 Qd6 25. Re3 Kg8 26. Qe1 Kf8 27. Qb1 h5 28. gxh6 Qxh6 29. Qe1 Qd6 30. Rh4 f6 31. Rb3 b6 32. Qe4 Rac8 33. Bd3 Kf7 34. Rb5 Rb8 35. Rxf4 exf4 36. Qh7 Re5 37. Bg6+ Ke7 38. Bf5 Kf7 39. h4 Rxf5 40. Qxf5 Kf8 41. Qe4 Rc8 42. Qd4 Qc7 43. Kb3 Qe5 44. Qxe5 fxe5 45. Kc3 e4 46. fxe4 f3 47. d6 Kf7 48. Rf5+ Ke6 49. Rxf3 Kxd6 50. Rf5 Rh8 51. h5 Ke7 52. Kd4 Ke6 53. Rb5 Rd8+ 54. Rd5 Rc8 55. Rg5 Kf7 56. b3 Rd8+ 57. Rd5 Rc8 58. Rd7+ Kf8 59. Kd5 1-0

[Event "NED SC2014 email"]
[Site "ICCF email"]
[Date "2014.11.03"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "De Geus, Alan"]
[Result "0-1"]
[ECO "D19"]
[WhiteElo "1854"]
[BlackElo "2150"]
[PlyCount "104"]
[EventDate "2014.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 Nbd7 7. Bxc4 e6 8. 0-0 Bb4 9. Qe2 0-0 10. e4 Bg4 11. Rd1 Qa5 12. e5 Nd5 13. Nxd5 cxd5 14. Bd3 Qd8 15. Bf4 f6 16. Bg3 fxe5 17. dxe5 Rc8 18. Rac1 Be7 19. Rxc8 Qxc8 20. Qe3 Qc5 21. Rc1 Qxe3 22. fxe3 Nc5 23. Be2 Nxa4 24. Rc7 Bc5 25. Rxb7 Bb6 26. b4 Nc3 27. Kf1 Ne4 28. Bf2 h5 29. h4 Rc8 30. Ng5 Rc1+ 31. Be1 Nxg5 32. Bxg4 hxg4 33. hxg5 Kh7 34. Ke2 Bxe3 35. Kxe3 Rxe1+ 36. Kf2 Rxe5 37. Rxa7 Kg6 38. Re7 Kxg5 39. b5 Kf6 40. Rd7 Re4 41. b6 Rb4 42. b7 Rb3 43. Ke2 g5 44. Kf2 Ke5 45. Ke2 Kf4 46. Rc7 d4 47. Re7 Kg3 48. Rg7 e5 49. Rxg5 Rxb7 50. Rxe5 Kxg2 51. Re4 g3 52. Rxd4 Re7+ 0-1

[Event "NED SC2014 email"]
[Site "ICCF email"]
[Date "2014.11.03"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Leijen, Peter"]
[Result "1/2-1/2"]
[ECO "D66"]
[WhiteElo "1854"]
[BlackElo "2125"]
[PlyCount "68"]
[EventDate "2014.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 0-0 6. e3 Nbd7 7. Rc1 h6 8. Bh4 c6 9. Bd3 dxc4 10. Bxc4 b5 11. Bd3 a6 12. a4 Bb7 13. 0-0 b4 14. Bxf6 Bxf6 15. Ne4 Be7 16. Qe2 Qb6 17. Ned2 c5 18. Nc4 Qa7 19. Nfe5 Rad8 20. Nxd7 Rxd7 21. Na5 cxd4 22. Nxb7 Rxb7 23. Bxa6 Rb6 24. Bb5 Bg5 25. b3 Rbb8 26. f4 Bf6 27. exd4 Bxd4+ 28. Kh1 g6 29. Rfd1 Rfd8 30. g3 Bf6 31. Kg2 h5 32. h4 Rxd1 33. Rxd1 Rb7 34. Rd6 Rc7 1/2-1/2

[Event "GER-NED email"]
[Site "ICCF email"]
[Date "2014.11.03"]
[Round "?.44"]
[White "Koopmans, Perry E"]
[Black "Schirm, Hanno"]
[Result "1/2-1/2"]
[ECO "D48"]
[WhiteElo "1854"]
[BlackElo "1935"]
[PlyCount "56"]
[EventDate "2014.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "GER"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Germany"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "GER"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 Bb7 10. 0-0 c5 11. d5 Qc7 12. dxe6 fxe6 13. Bc2 Bd6 14. Ng5 Nf8 15. f4 0-0-0 16. Qe2 h6 17. Nf3 Bxf4 18. e5 Bxc1 19. Raxc1 Nd5 20. a4 Qb6 21. Ne4 c4+ 22. Qf2 Qxf2+ 23. Rxf2 Kb8 24. axb5 axb5 25. Nd6 Rg8 26. Nd4 Nb4 27. N4xb5 Nd7 28. Nxb7 Kxb7 1/2-1/2

[Event "NED SC2014 email"]
[Site "ICCF email"]
[Date "2014.11.03"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Van de Peut, Aart A"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "1854"]
[BlackElo "1870"]
[PlyCount "138"]
[EventDate "2014.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[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. f4 Bc7 14. 0-0 exd5 15. exd5 Ba5 16. d6 Rb8 17. Ba3 Bf5 18. Rbd1 Rc8 19. g4 Bd7 20. Bf3 Qf6 21. Bb2 c4 22. f5 gxf5 23. g5 Bb6+ 24. Kh1 Qe5 25. Bc1 Ba5 26. Bb2 Rfd8 27. Bxb7 Qc5 28. Qg2 Rb8 29. Bf3 Be6 30. Qf2 Qb6 31. Bc1 Rxd6 32. Be3 Rxd1 33. Bxb6 Bxb6 34. Qg2 Rd3 35. h4 Be3 36. h5 Rd2 37. Qg3 f4 38. Qh4 Bf5 39. h6 Rbb2 40. Re1 Be6 41. Rf1 a5 42. a3 a4 43. Be4 Bc5 44. Qxf4 Bd6 45. Qe3 Bxa3 46. Qa7 Bf8 47. Qa8 a3 48. g6 Rh2+ 49. Kg1 hxg6 50. Rd1 Rhe2 51. Bf3 Red2 52. Rxd2 Rxd2 53. h7+ Kxh7 54. Qxf8 a2 55. Qa3 Bd5 56. Bg4 f5 57. Kf1 fxg4 58. Ke1 Rc2 59. Qe7+ Kh6 60. Qf8+ Kg5 61. Qd8+ Kf4 62. Qd6+ Kf3 63. Qxd5+ Kg3 64. Qe5+ Kg2 65. Qe4+ Kh3 66. Qxc2 a1Q+ 67. Ke2 Qa8 68. Qxg6 Qf3+ 69. Kd2 Qd3+ 0-1

[Event "NED SC2014 email"]
[Site "ICCF email"]
[Date "2014.11.03"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Ypma, Hans"]
[Result "1/2-1/2"]
[ECO "A59"]
[WhiteElo "1854"]
[BlackElo "2181"]
[PlyCount "67"]
[EventDate "2014.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. e4 Bxf1 8. Kxf1 d6 9. g3 Bg7 10. Nf3 Nbd7 11. Kg2 0-0 12. a4 Ra6 13. Qc2 Qa8 14. Re1 Rb8 15. b3 c4 16. bxc4 Rc8 17. Nd2 Nb6 18. Qb3 Nfd7 19. Bb2 Nc5 20. Qc2 Ncd7 21. Nd1 Ne5 22. Bxe5 Bxe5 23. Ra2 Rxa4 24. Rxa4 Nxa4 25. Ne3 Nc5 26. Rb1 Bd4 27. Nef1 Qa5 28. Nb3 Nxb3 29. Rxb3 Qc5 30. Qd2 h5 31. h4 Ra8 32. Rb5 Qa7 33. Rb3 Qc5 34. Rb5 1/2-1/2

[Event "NED SC2014 email"]
[Site "ICCF email"]
[Date "2014.11.03"]
[Round "?"]
[White "Laan, Aad"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "B99"]
[WhiteElo "2140"]
[BlackElo "1854"]
[PlyCount "69"]
[EventDate "2014.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nbd7 10. g4 b5 11. Bxf6 Nxf6 12. g5 Nd7 13. f5 Bxg5+ 14. Kb1 Ne5 15. Qh5 Qd8 16. h4 Bf6 17. fxe6 0-0 18. Bh3 Kh8 19. Nd5 fxe6 20. Bxe6 g6 21. Qe2 Nf3 22. Nc6 Qe8 23. Bxc8 Rxc8 24. Qxf3 Bg7 25. Qe2 Rxc6 26. h5 Rc4 27. hxg6 Qxg6 28. Rde1 Re8 29. Rh4 Qg3 30. Reh1 h6 31. Nf6 Bxf6 32. Rg4 Qxg4 33. Qxg4 Bg5 34. Qxg5 Rcxe4 35. Rxh6# 1-0

[Event "NED SC2014 email"]
[Site "ICCF email"]
[Date "2014.11.03"]
[Round "?"]
[White "Massy, Giel"]
[Black "Koopmans, Perry E"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2172"]
[BlackElo "1854"]
[PlyCount "59"]
[EventDate "2014.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 0-0 10. 0-0-0 Nbd7 11. g4 b5 12. g5 b4 13. Ne2 Ne8 14. f4 a5 15. f5 a4 16. Nbd4 exd4 17. Nxd4 b3 18. Kb1 bxc2+ 19. Nxc2 Bb3 20. axb3 axb3 21. Na3 Ne5 22. h4 Ra4 23. Bd4 Nf3 24. Qc3 Nxd4 25. Rxd4 Rxd4 26. Qxd4 d5 27. Qxd5 Qb6 28. Bc4 Bxa3 29. bxa3 Nd6 30. g6 1/2-1/2

[Event "GER-NED email"]
[Site "ICCF email"]
[Date "2014.11.03"]
[Round "?.44"]
[White "Schirm, Hanno"]
[Black "Koopmans, Perry E"]
[Result "0-1"]
[ECO "C97"]
[WhiteElo "1935"]
[BlackElo "1854"]
[PlyCount "46"]
[EventDate "2014.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "GER"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Germany"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. h3 0-0 9. c3 Na5 10. Bc2 c5 11. d4 Qc7 12. d5 Bd7 13. b3 Nb7 14. Nbd2 c4 15. b4 Rfc8 16. Re3 a5 17. Bb2 Nh5 18. Nxe5 dxe5 19. Qxh5 g6 20. Rg3 axb4 21. Nf3 b3 22. Bb1 Ba3 23. Bxa3 Rxa3 0-1

[Event "NED SC2014 email"]
[Site "ICCF email"]
[Date "2014.11.03"]
[Round "?"]
[White "Spierenburg, Pieter"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "B95"]
[WhiteElo "1978"]
[BlackElo "1854"]
[PlyCount "113"]
[EventDate "2014.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qf3 Nbd7 8. Be2 Qc7 9. a4 Be7 10. 0-0 0-0 11. Qg3 Kh8 12. a5 b6 13. axb6 Qxb6 14. Nb3 Bb7 15. Be3 Qc7 16. f3 Nh5 17. Qh3 Nhf6 18. g4 Ne5 19. g5 Nfd7 20. f4 Nc4 21. Bxc4 Qxc4 22. f5 exf5 23. Ra4 Qc8 24. exf5 Re8 25. Rh4 Nf8 26. Nd2 d5 27. Qg4 Bc5 28. Bd4 Bxd4+ 29. Qxd4 Kg8 30. Nb3 Qc7 31. Nc5 Rac8 32. b4 Nd7 33. Nxb7 Qxb7 34. Nxd5 Re5 35. c4 Rce8 36. f6 Rxg5+ 37. Rg4 Rxg4+ 38. Qxg4 g6 39. Qf4 Kh8 40. Qh6 Rg8 41. Ne7 Nxf6 42. Nxg8 Nxg8 43. Qd2 f6 44. Qc3 Kg7 45. c5 Qd5 46. c6 Qg5+ 47. Kh1 Qd5+ 48. Rf3 Qd1+ 49. Kg2 Qe2+ 50. Kg3 Qe6 51. Re3 Qd6+ 52. Kg2 Qd5+ 53. Kf2 Qf5+ 54. Ke1 Qb1+ 55. Kd2 Qa2+ 56. Kc1 Qd5 57. c7 1-0

[Event "NED-POR email"]
[Site "ICCF email"]
[Date "2014.10.01"]
[Round "?.24"]
[White "Koopmans, Perry E"]
[Black "Lucio, Jorge Rodrigues"]
[Result "1-0"]
[ECO "A65"]
[WhiteElo "1854"]
[BlackElo "1973"]
[PlyCount "83"]
[EventDate "2014.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Portugal"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "POR"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 c5 7. d5 e6 8. Qd2 exd5 9. cxd5 a6 10. a4 Re8 11. Nge2 Nbd7 12. Nc1 Ne5 13. Be2 Bd7 14. 0-0 Rb8 15. a5 b5 16. axb6 Rxb6 17. Rxa6 Rxa6 18. Bxa6 Qa5 19. Be2 Rb8 20. b3 Ne8 21. Nb1 Qb6 22. Na3 f5 23. f4 Nf7 24. Nc4 Qc7 25. exf5 Bxf5 26. Bf3 Nf6 27. Qd1 Re8 28. Bf2 Ne4 29. Re1 Qd7 30. g4 Nxf2 31. Rxe8+ Qxe8 32. Kxf2 Bd7 33. Kg2 Bb5 34. g5 Bf8 35. h4 h6 36. Qd3 Nh8 37. Ne2 Kg7 38. Ng3 Bxc4 39. bxc4 Kg8 40. Bg4 Bg7 41. Be6+ Kf8 42. Qb1 1-0

[Event "NED-POR email"]
[Site "ICCF email"]
[Date "2014.10.01"]
[Round "?.24"]
[White "Lucio, Jorge Rodrigues"]
[Black "Koopmans, Perry E"]
[Result "0-1"]
[ECO "D47"]
[WhiteElo "1973"]
[BlackElo "1854"]
[PlyCount "84"]
[EventDate "2014.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Portugal"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "POR"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Be2 Bb7 9. 0-0 a6 10. e4 c5 11. e5 Nd5 12. a4 b4 13. Ne4 Qc7 14. Re1 h6 15. b3 Be7 16. Bb2 0-0 17. Rc1 Rac8 18. Nfd2 Qb8 19. Nc4 cxd4 20. Qxd4 Nc5 21. Na5 Nxe4 22. Qxe4 Ba8 23. Rxc8 Qxc8 24. Bd3 g6 25. Nc4 Nc3 26. Qg4 h5 27. Qg3 Rd8 28. Nb6 Qc6 29. Nxa8 a5 30. Rc1 h4 31. Qh3 Bc5 32. Bxc3 bxc3 33. Bf1 Bd4 34. Qxh4 Qxa8 35. Qg5 Qb8 36. Bc4 Bxe5 37. g3 Rd2 38. Bxe6 fxe6 39. Qxg6+ Kf8 40. Qxe6 Qd6 41. Qc8+ Kf7 42. Qb7+ Qe7 0-1

[Event "NED AOW-07 email"]
[Site "ICCF email"]
[Date "2014.05.19"]
[Round "?"]
[White "Hospers, Bert"]
[Black "Koopmans, Perry E"]
[Result "1/2-1/2"]
[ECO "E62"]
[BlackElo "1762"]
[PlyCount "36"]
[EventDate "2014.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. Nc3 e5 7. d4 Nbd7 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Bg5 Qxd1 11. Rfxd1 c6 12. Rac1 Be6 13. b3 h6 14. Be3 Rfc8 15. h3 Bf8 16. g4 Kg7 17. f4 exf4 18. Bxf4 Be7 1/2-1/2

[Event "NED AOW-07 email"]
[Site "ICCF email"]
[Date "2014.05.19"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Duiven, Geert"]
[Result "0-1"]
[ECO "A44"]
[WhiteElo "1762"]
[BlackElo "1851"]
[PlyCount "68"]
[EventDate "2014.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 d6 5. e4 e5 6. Bd3 Nd7 7. Nge2 Ne7 8. f3 f5 9. Be3 Nf6 10. b4 b6 11. bxc5 bxc5 12. Rb1 f4 13. Bf2 0-0 14. 0-0 g5 15. Kh1 g4 16. Qb3 Ng6 17. Qb5 Nh5 18. Qc6 Bd7 19. Qxd6 Rf6 20. Qxc5 Bf8 21. d6 Rxd6 22. Nd5 g3 23. hxg3 Nxg3+ 24. Nxg3 Qh4+ 25. Kg1 fxg3 26. Bxg3 Qxg3 27. Qf2 Qg5 28. Rfd1 Rc6 29. Rb5 a6 30. Ra5 Qd8 31. Qd2 Rc5 32. Rxc5 Bxc5+ 33. Kf1 Qh4 34. Rb1 Ba4 0-1

[Event "NED AOW-07 email"]
[Site "ICCF email"]
[Date "2014.05.19"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Lonnee, Gerard A"]
[Result "1-0"]
[ECO "B20"]
[WhiteElo "1762"]
[BlackElo "1773"]
[PlyCount "39"]
[EventDate "2014.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. b3 c5 2. Bb2 Nc6 3. e4 d6 4. Bb5 Bd7 5. f4 a6 6. Bxc6 Bxc6 7. Nc3 Nf6 8. Qe2 e6 9. Nf3 Be7 10. e5 Nd7 11. Ne4 0-0 12. exd6 Bf6 13. Be5 Bxe5 14. fxe5 Qa5 15. c4 b5 16. 0-0 bxc4 17. bxc4 Rfb8 18. Nfg5 Nxe5 19. Nf6+ gxf6 20. Rxf6 1-0

[Event "NED AOW-07 email"]
[Site "ICCF email"]
[Date "2014.05.19"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Van Kreveld, Frank"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "1762"]
[PlyCount "23"]
[EventDate "2014.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 h6 4. Nc3 Bf5 5. cxd5 cxd5 6. Qb3 b6 7. e4 dxe4 8. Ne5 e6 9. Bb5+ Ke7 10. Bc6 Na6 11. Bxa8 Qxa8 12. Qa3+ 1-0

[Event "NED AOW-07 email"]
[Site "ICCF email"]
[Date "2014.05.19"]
[Round "?"]
[White "Niewold, Jaap"]
[Black "Koopmans, Perry E"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1885"]
[BlackElo "1762"]
[PlyCount "70"]
[EventDate "2014.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Bc5 5. d3 d6 6. Na4 Bb6 7. c3 Be6 8. Bxe6 fxe6 9. 0-0 0-0 10. b4 Qd7 11. h3 h6 12. Rb1 Ne7 13. Bb2 Nc6 14. c4 Nxb4 15. Bxe5 Nc6 16. Bc3 Nh5 17. d4 Nf4 18. Kh2 Qf7 19. Ng1 e5 20. d5 Nd4 21. Rb2 c5 22. g3 Nh5 23. f4 exf4 24. gxf4 Rae8 25. Bxd4 cxd4 26. Nxb6 Rxe4 27. Rbf2 axb6 28. Ne2 Qe7 29. Nxd4 Nxf4 30. Ne6 Nxe6 31. dxe6 Rxf2+ 32. Rxf2 Qxe6 33. Qd5 Qxd5 34. cxd5 b5 35. Rc2 Kf7 0-1

[Event "NED AOW-07 email"]
[Site "ICCF email"]
[Date "2014.05.19"]
[Round "?"]
[White "Verlinde, Philip"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "C99"]
[BlackElo "1762"]
[PlyCount "117"]
[EventDate "2014.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4 Nc6 14. Nb3 a5 15. Be3 a4 16. Nbd2 Bd7 17. Rc1 Qb7 18. Nf1 Rfc8 19. Ng3 g6 20. Qd2 exd4 21. Nxd4 Ne5 22. b3 axb3 23. axb3 Ra2 24. Qd1 Ra6 25. Bb1 Rxc1 26. Bxc1 b4 27. Bb2 Ra8 28. Qd2 Rc8 29. Kh2 Rc5 30. f4 Nc6 31. Rf1 Qb8 32. Bd3 Nd8 33. f5 d5 34. e5 Ne4 35. Bxe4 dxe4 36. e6 fxe6 37. fxg6 Rg5 38. Nde2 Qd6 39. gxh7+ Kxh7 40. Qe3 Bc6 41. Bf6 Bxf6 42. Rxf6 Qe5 43. Rf4 Qg7 44. Qf2 Qe5 45. Qb6 Qd6 46. Rxe4 e5 47. Qxb4 Qxb4 48. Rxb4 Rg7 49. Rb6 Kg6 50. b4 Rb7 51. Rxb7 Bxb7 52. Nc3 Kg5 53. Nge4+ Kf4 54. Nd6 Ba8 55. Nc4 Ne6 56. b5 e4 57. Ne2+ Kg5 58. g4 Kf6 59. h4 1-0

[Event "ESP-NED email"]
[Site "ICCF email"]
[Date "2014.03.15"]
[Round "?.37"]
[White "Aguilar Medina, Juan Jose"]
[Black "Koopmans, Perry E"]
[Result "0-1"]
[ECO "C68"]
[WhiteElo "1571"]
[BlackElo "1753"]
[PlyCount "84"]
[EventDate "2014.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "ESP"]
[SourceTitle "Corr 2015"]
[Source "ChessBase"]
[SourceDate "2015.07.17"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.17"]
[SourceQuality "1"]
[WhiteTeam "Spain"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "ESP"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3 f6 6. d3 Bd6 7. Be3 Ne7 8. 0-0 Bg4 9. h3 Bh5 10. Re1 Ng6 11. g4 Qd7 12. Kf1 Bxg4 13. hxg4 Qxg4 14. Nh2 Qh3+ 15. Kg1 Nh4 16. Qg4 Qxg4+ 17. Nxg4 Nf3+ 18. Kf1 Nxe1 19. Kxe1 h5 20. Nh2 h4 21. Ke2 Kf7 22. Rg1 g5 23. a3 a5 24. Kd2 b5 25. Ne2 Ke6 26. c3 Rhb8 27. f3 b4 28. cxb4 axb4 29. axb4 Bxb4+ 30. Kc2 Ra2 31. Rb1 Ba3 32. Bc1 Bc5 33. Bd2 Bb6 34. Nc3 Raa8 35. Nd1 Bg1 36. Ng4 h3 37. Ndf2 h2 38. Nxh2 Bxf2 39. Ng4 Bd4 40. Bc1 Ra2 41. Nh2 Rh8 42. Nf1 Rh3 0-1

[Event "ESP-NED email"]
[Site "ICCF email"]
[Date "2014.03.15"]
[Round "?.37"]
[White "Koopmans, Perry E"]
[Black "Aguilar Medina, Juan Jose"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "1753"]
[BlackElo "1571"]
[PlyCount "55"]
[EventDate "2014.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "ESP"]
[SourceTitle "Corr 2015"]
[Source "ChessBase"]
[SourceDate "2015.07.17"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.17"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Spain"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ESP"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 Nc6 6. Nc3 Bb4 7. 0-0 0-0 8. Bd2 a6 9. a3 Bxc3 10. Bxc3 Re8 11. Qc2 b5 12. Bd3 e5 13. dxe5 Nd5 14. Bxh7+ Kf8 15. Rfd1 Nxe3 16. fxe3 Qe7 17. Be4 Bd7 18. Bxc6 Bxc6 19. Qh7 f6 20. Bb4 Qxb4 21. axb4 Kf7 22. exf6 Kxf6 23. Nd4 Be4 24. Rf1+ Ke5 25. Qxg7+ Kd5 26. Qf7+ Ke5 27. Qxc7+ Kd5 28. Qc5# 1-0

[Event "NED PRO-D email"]
[Site "ICCF email"]
[Date "2013.11.11"]
[Round "?"]
[White "Coenen, Paul"]
[Black "Koopmans, Perry E"]
[Result "1/2-1/2"]
[ECO "D45"]
[BlackElo "1741"]
[PlyCount "67"]
[EventDate "2013.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. g4 Nxg4 8. Rg1 Nxh2 9. Nxh2 Bxh2 10. Rxg7 Nf8 11. Rg2 Bd6 12. e4 Ng6 13. Bg5 f6 14. Be3 Nh4 15. Rg7 Nf3+ 16. Kd1 Nxd4 17. Bxd4 e5 18. Bxe5 Bxe5 19. exd5 Kf8 20. Rg2 h5 21. f4 Bxf4 22. Qf2 Be5 23. Kc2 Qb6 24. c5 Qb4 25. Rd1 Bg4 26. Be2 Bxe2 27. Qxe2 Re8 28. Qf1 Rg8 29. Rxg8+ Kxg8 30. d6 Qg4 31. Re1 Qg6+ 32. Ne4 Kf8 33. Qf3 b6 34. Rh1 1/2-1/2

[Event "NED PRO-D email"]
[Site "ICCF email"]
[Date "2013.11.11"]
[Round "?"]
[White "Geus, Jan"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "C95"]
[WhiteElo "2165"]
[BlackElo "1741"]
[PlyCount "99"]
[EventDate "2013.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Nb8 10. d4 Nbd7 11. Nbd2 Bb7 12. Bc2 Re8 13. Nf1 Bf8 14. Ng3 g6 15. a4 c5 16. d5 c4 17. Bg5 Bg7 18. Qd2 Nc5 19. Nh2 Qc7 20. Rf1 h5 21. Nf3 Nfd7 22. Nh4 Nf8 23. f4 f6 24. f5 fxg5 25. Qxg5 Nh7 26. Qxg6 Nf6 27. Nxh5 Qf7 28. Nxf6+ Qxf6 29. Qh5 Qh6 30. Qg4 Nd7 31. Qg3 Nf6 32. Rf3 Qd2 33. Rf2 Qh6 34. Ng6 Nh5 35. Qg4 Nf6 36. Qf3 Nd7 37. g4 Nf8 38. Nxf8 Rxf8 39. Qg3 Bf6 40. g5 Qg7 41. Rg2 Bd8 42. h4 Qh7 43. Qh3 b4 44. h5 b3 45. h6 bxc2 46. g6 Qe7 47. g7 Kh7 48. gxf8N+ Qxf8 49. Rg7+ Kh8 50. Rc1 1-0

[Event "NED PRO-D email"]
[Site "ICCF email"]
[Date "2013.11.11"]
[Round "?"]
[White "Henke, Aleksander"]
[Black "Koopmans, Perry E"]
[Result "0-1"]
[ECO "A29"]
[BlackElo "1741"]
[PlyCount "48"]
[EventDate "2013.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 e5 3. Bg2 d5 4. cxd5 Nxd5 5. Nc3 Nb6 6. Nf3 Nc6 7. 0-0 Be7 8. d3 0-0 9. a4 a5 10. Nb5 Be6 11. d4 e4 12. Ne1 f5 13. Bf4 Nd5 14. Rc1 Bf6 15. Nc2 Nxf4 16. gxf4 Bb3 17. Qd2 Bxa4 18. Nca3 Bxd4 19. Nxd4 Nxd4 20. Qe1 Ra6 21. e3 Nf3+ 22. Bxf3 exf3 23. Kh1 Rh6 24. Rg1 Rxh2+ 0-1

[Event "NED PRO-D email"]
[Site "ICCF email"]
[Date "2013.11.11"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Coenen, Paul"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "1741"]
[PlyCount "84"]
[EventDate "2013.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. e3 Nbd7 6. Qc2 b6 7. Bd3 Bb7 8. 0-0 Be7 9. b3 dxc4 10. bxc4 c5 11. Qe2 0-0 12. Rd1 Qc7 13. a4 Rfe8 14. Bd2 a6 15. h3 h6 16. Rab1 Bd6 17. a5 bxa5 18. d5 exd5 19. cxd5 Nxd5 20. Nxd5 Bxd5 21. Ra1 Bb3 22. Bxa5 Bxd1 23. Bh7+ Kh8 24. Qxd1 Qc6 25. Bc2 Rab8 26. Ba4 Rb5 27. Rc1 Nf6 28. Nd4 Qd7 29. Nxb5 axb5 30. Bc2 Qe6 31. Bc3 Be5 32. Be1 Rb8 33. Rb1 c4 34. Ba5 Bd6 35. Qd2 Kg8 36. Rd1 Bc5 37. Bb4 Qe7 38. Bxc5 Qxc5 39. Qa5 Nd5 40. Rd4 g6 41. Be4 Nf6 42. Bb1 Rc8 0-1

[Event "NED PRO-D email"]
[Site "ICCF email"]
[Date "2013.11.11"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Geus, Jan"]
[Result "1/2-1/2"]
[ECO "D46"]
[WhiteElo "1741"]
[BlackElo "2165"]
[PlyCount "78"]
[EventDate "2013.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. e3 Nbd7 6. Qc2 Bd6 7. Bd3 0-0 8. 0-0 dxc4 9. Bxc4 b5 10. Bd3 Bb7 11. a3 a6 12. b4 a5 13. bxa5 Rxa5 14. Bb2 Qb6 15. Ne4 Nxe4 16. Bxe4 Nf6 17. Bd3 Rfa8 18. Rfc1 Bxa3 19. Bxa3 Rxa3 20. Rxa3 Rxa3 21. Ne5 g6 22. Bf1 Kg7 23. g3 Nd5 24. Nd7 Qd8 25. Nc5 Bc8 26. e4 Rc3 27. Qb2 Rxc1 28. Qxc1 Nf6 29. Qc3 Qb6 30. Qb4 Qa7 31. Qb2 Qa5 32. f3 Nd7 33. Nd3 Kg8 34. Kg2 Bb7 35. h4 Qa4 36. Qc3 Qa2+ 37. Nf2 Qa8 38. Qb4 Qf8 39. Qa5 Qc8 1/2-1/2

[Event "NED PRO-D email"]
[Site "ICCF email"]
[Date "2013.11.11"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Henke, Aleksander"]
[Result "1-0"]
[ECO "A50"]
[WhiteElo "1741"]
[PlyCount "59"]
[EventDate "2013.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 Nc6 2. c4 e5 3. d5 Nce7 4. e4 Ng6 5. Be3 Nf6 6. Nc3 Bb4 7. f3 Bxc3+ 8. bxc3 d6 9. c5 0-0 10. cxd6 cxd6 11. Bd3 Nh5 12. Ne2 Qh4+ 13. g3 Qh3 14. Kf2 Qd7 15. Qc2 Nf6 16. c4 b6 17. a4 Qc7 18. a5 Ba6 19. axb6 axb6 20. Ra2 Nd7 21. Rha1 Bb7 22. Rxa8 Rxa8 23. Rxa8+ Bxa8 24. Qa2 Qb8 25. Nc3 Ne7 26. Qa4 Nf6 27. Bg5 h6 28. Bxf6 gxf6 29. Qd7 Kf8 30. Nb5 1-0

[Event "NED PRO-D email"]
[Site "ICCF email"]
[Date "2013.11.11"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Nieuwland, A Huib"]
[Result "1/2-1/2"]
[ECO "A87"]
[WhiteElo "1741"]
[BlackElo "2258"]
[PlyCount "72"]
[EventDate "2013.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. 0-0 0-0 6. c4 d6 7. Nc3 Qe8 8. d5 Na6 9. Rb1 Nc5 10. Ng5 a5 11. Be3 e5 12. dxe6 h6 13. Nh3 Bxe6 14. Nf4 Bxc4 15. Bxc5 dxc5 16. Bxb7 Rd8 17. Qc2 g5 18. Ng2 Ng4 19. h3 Ne5 20. b3 Bf7 21. Rbd1 Rxd1 22. Rxd1 c6 23. Ba6 c4 24. Bxc4 Nxc4 25. bxc4 Qe6 26. Rc1 f4 27. gxf4 Qxh3 28. Qd3 Qxd3 29. exd3 Rd8 30. fxg5 Rxd3 31. Ne4 Rd4 32. Re1 Bxc4 33. gxh6 Bxh6 34. Nh4 Rd8 35. Nf5 Bf8 36. Ne3 Bb4 1/2-1/2

[Event "NED PRO-D email"]
[Site "ICCF email"]
[Date "2013.11.11"]
[Round "?"]
[White "Nieuwland, A Huib"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "B09"]
[WhiteElo "2258"]
[BlackElo "1741"]
[PlyCount "55"]
[EventDate "2013.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 0-0 6. Bd3 Na6 7. 0-0 c5 8. d5 Bg4 9. Bc4 Nb8 10. a4 Qa5 11. Qd3 Nbd7 12. Bd2 Bxf3 13. Qxf3 a6 14. Qe2 Qc7 15. a5 Rad8 16. Rfe1 Bh6 17. g4 Ne8 18. h4 Bg7 19. Kg2 Qc8 20. Na4 Nc7 21. h5 Nb5 22. c3 Qc7 23. hxg6 hxg6 24. Qf3 Rfe8 25. Rh1 Qxa5 26. Qh3 Nf8 27. f5 Qc7 28. Bh6 1-0

[Event "NED SC2013-C email"]
[Site "ICCF email"]
[Date "2013.10.01"]
[Round "?"]
[White "De Visser, Arno"]
[Black "Koopmans, Perry E"]
[Result "1/2-1/2"]
[ECO "C56"]
[WhiteElo "1992"]
[BlackElo "1741"]
[PlyCount "113"]
[EventDate "2013.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. Nf3 Nc6 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Neg5 0-0-0 11. Nxe6 fxe6 12. Rxe6 Bd6 13. Bg5 Rde8 14. Qe2 Rxe6 15. Qxe6+ Kb8 16. Re1 a6 17. a3 Rf8 18. Bd2 Qb5 19. b4 d3 20. c4 Qa4 21. Qd7 Qxa3 22. c5 Be7 23. Rxe7 Nxe7 24. Qxe7 Qa1+ 25. Ne1 Qf6 26. Qxf6 gxf6 27. f3 Re8 28. Kf1 Re2 29. Bf4 Kc8 30. Nxd3 Ra2 31. Be3 Kd7 32. g4 Kc6 33. h4 Rc2 34. Ke1 Kb5 35. Bd2 b6 36. Kd1 Ra2 37. cxb6 cxb6 38. f4 Kc4 39. Ke2 Ra3 40. Ne1 a5 41. g5 fxg5 42. hxg5 axb4 43. Bxb4 Ra8 44. Bd2 Re8+ 45. Kf2 Rf8 46. Ng2 b5 47. Kf3 Re8 48. f5 b4 49. f6 b3 50. Bc1 Ra8 51. Ne3+ Kc5 52. f7 Kd6 53. Nf5+ Ke6 54. Nh6 Ke7 55. Bb2 Kf8 56. Ke4 Ra6 57. Kd3 1/2-1/2

[Event "NED SC2013-C email"]
[Site "ICCF email"]
[Date "2013.10.01"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Van den Braak, Jelle"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "1741"]
[BlackElo "1980"]
[PlyCount "85"]
[EventDate "2013.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 b6 3. Nf3 Bb7 4. Nc3 e6 5. a3 Ne4 6. Nxe4 Bxe4 7. Nd2 Bb7 8. e4 Qf6 9. d5 Bc5 10. Nf3 exd5 11. exd5 0-0 12. Be2 c6 13. 0-0 Re8 14. Rb1 a5 15. Bg5 Qd6 16. dxc6 Qxd1 17. Rbxd1 Nxc6 18. Bd3 a4 19. Rfe1 Rxe1+ 20. Rxe1 Na5 21. Nd2 Bd4 22. Rb1 Re8 23. Nf1 g6 24. Be3 Be4 25. Bxd4 Bxd3 26. Rd1 Bc2 27. Rc1 Nb3 28. Rxc2 Nxd4 29. Rd2 Nb3 30. Rc2 f5 31. f3 f4 32. Kf2 Rc8 33. Rc3 g5 34. Ke2 Kf7 35. Nd2 Re8+ 36. Kd1 Nc5 37. Nb1 Re6 38. Rc2 Rh6 39. h3 Nb3 40. Nc3 Rd6+ 41. Ke1 Rc6 42. Nxa4 b5 43. Nc3 1/2-1/2

[Event "NED SC2013-C email"]
[Site "ICCF email"]
[Date "2013.10.01"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Verleur, Jan Hein"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "1741"]
[BlackElo "2371"]
[PlyCount "60"]
[EventDate "2013.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. e3 e6 6. b3 Bb4 7. Bd2 Nbd7 8. Bd3 0-0 9. 0-0 Qe7 10. Qc2 e5 11. dxe5 Nxe5 12. Nxe5 Qxe5 13. Nxd5 Nxd5 14. cxd5 Bxd2 15. Qxd2 Qxd5 16. Rfd1 Bg4 17. f3 Be6 18. Qc3 Qg5 19. f4 Qg4 20. Qc2 g6 21. Qf2 Rad8 22. e4 Bc8 23. Rac1 Qe6 24. Qe3 Qe7 25. h3 Be6 26. Qf3 f6 27. Qe3 Rfe8 28. Bc2 Bf7 29. Rxd8 Rxd8 30. Kh2 c5 1/2-1/2

[Event "NED SC2013-C email"]
[Site "ICCF email"]
[Date "2013.10.01"]
[Round "?"]
[White "Nieuwland, A Huib"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "C97"]
[WhiteElo "2258"]
[BlackElo "1741"]
[PlyCount "77"]
[EventDate "2013.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. d5 Bd7 13. b3 Nb7 14. Nbd2 g6 15. Nf1 c4 16. b4 a5 17. Bg5 axb4 18. cxb4 Ra3 19. Bc1 Ra6 20. Re3 Rfa8 21. a4 Nh5 22. Rea3 Nd8 23. a5 Qb7 24. N3h2 Nf4 25. Qf3 Bg5 26. h4 Bxh4 27. Bxf4 exf4 28. Qxf4 Be7 29. Ne3 f6 30. Nf5 Bc8 31. Qh4 Nf7 32. Ng4 Ne5 33. Rh3 h5 34. Raa3 Nxg4 35. Rag3 Bd8 36. Rxg4 Qh7 37. e5 Bxf5 38. Bxf5 fxe5 39. Qg3 1-0

[Event "AUS/NZ-NED email"]
[Site "ICCF email"]
[Date "2013.05.06"]
[Round "?.52"]
[White "Clayton, Graham"]
[Black "Koopmans, Perry E"]
[Result "0-1"]
[ECO "B52"]
[WhiteElo "1772"]
[BlackElo "1739"]
[PlyCount "52"]
[EventDate "2013.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Australia/New Zealand"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "AUS"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nc6 6. Nc3 Nf6 7. d4 cxd4 8. Nxd4 g6 9. 0-0 Bg7 10. Nce2 Nxe4 11. Nxc6 Qxc6 12. Qd5 Qxd5 13. cxd5 Rc8 14. Ng3 Nxg3 15. hxg3 Rc2 16. Rb1 Kd7 17. Rd1 Rhc8 18. Kf1 R8c4 19. b3 Rd4 20. Rxd4 Bxd4 21. Be3 Bxe3 22. fxe3 Rxa2 23. b4 Rd2 24. e4 Rd4 25. Kf2 Rxe4 26. Kf3 Rd4 0-1

[Event "AUS/NZ-NED email"]
[Site "ICCF email"]
[Date "2013.05.06"]
[Round "?.52"]
[White "Koopmans, Perry E"]
[Black "Clayton, Graham"]
[Result "1-0"]
[ECO "D16"]
[WhiteElo "1739"]
[BlackElo "1772"]
[PlyCount "49"]
[EventDate "2013.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "Corr 2017"]
[Source "ChessBase"]
[SourceDate "2017.09.19"]
[SourceVersion "1"]
[SourceVersionDate "2017.09.19"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Australia/New Zealand"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "AUS"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bg4 6. Ne5 Bh5 7. Nxc4 e6 8. g3 Bb4 9. Bg2 Nd5 10. Qd3 Be7 11. 0-0 0-0 12. e4 Nb4 13. Qd2 N8a6 14. b3 Qc7 15. Ne2 Bg5 16. Nf4 Bg6 17. Qe2 Rad8 18. Nxg6 hxg6 19. Bxg5 Rxd4 20. Rad1 Rfd8 21. Bxd8 Qxd8 22. Rxd4 Qxd4 23. Rd1 Qc3 24. Rd8+ Kh7 25. Qg4 1-0

[Event "NED-USA email"]
[Site "ICCF email"]
[Date "2013.04.11"]
[Round "?.59"]
[White "Brzezinski, Brian"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "1764"]
[BlackElo "1739"]
[PlyCount "93"]
[EventDate "2013.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "USA"]
[SourceTitle "Corr 2015"]
[Source "ChessBase"]
[SourceDate "2015.07.17"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.17"]
[SourceQuality "1"]
[WhiteTeam "US of America"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "USA"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. Qd2 Nbd7 9. 0-0-0 Be7 10. Kb1 Rc8 11. f3 b5 12. g4 Nb6 13. g5 Nh5 14. Qf2 Nc4 15. Bxc4 Rxc4 16. Nd5 0-0 17. Qd2 Bxd5 18. Qxd5 Qc8 19. Na5 Rxc2 20. Rc1 Rxc1+ 21. Rxc1 Qe6 22. Nc6 Bd8 23. Nxd8 Rxd8 24. Rc6 Qxd5 25. exd5 f6 26. Rxa6 Kf7 27. Rb6 Kg6 28. gxf6 Nxf6 29. Rxb5 Ra8 30. Rb6 Rd8 31. Bd2 Nxd5 32. Rb7 Rf8 33. a4 Rxf3 34. a5 e4 35. a6 Rf1+ 36. Ka2 Rf8 37. a7 Ra8 38. b4 e3 39. Be1 Kf6 40. Kb3 h6 41. Kc4 Ke5 42. Kd3 g5 43. Bc3+ Nxc3 44. Kxc3 Ke4 45. b5 d5 46. Re7+ Kf3 47. b6 1-0

[Event "NED-USA email"]
[Site "ICCF email"]
[Date "2013.04.11"]
[Round "?.58"]
[White "Cofer, David"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "1765"]
[BlackElo "1739"]
[PlyCount "95"]
[EventDate "2013.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "USA"]
[SourceTitle "Corr 2015"]
[Source "ChessBase"]
[SourceDate "2015.07.17"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.17"]
[SourceQuality "1"]
[WhiteTeam "US of America"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "USA"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 0-0 10. 0-0-0 Nbd7 11. g4 b5 12. g5 Nh5 13. Nd5 Bxd5 14. exd5 b4 15. Kb1 a5 16. Bb5 a4 17. Nc1 a3 18. b3 Nc5 19. Rhg1 Qa5 20. Bc6 Rab8 21. Rg4 f6 22. g6 f5 23. gxh7+ Kxh7 24. Rc4 g6 25. Bxc5 dxc5 26. d6 Rfd8 27. Qd5 Rxd6 28. Qf7+ Kh6 29. Rxd6 Bxd6 30. Be8 Rxe8 31. Qxe8 Qc7 32. Qh8+ Qh7 33. Qxh7+ Kxh7 34. Nd3 Nf6 35. Nxc5 Nd5 36. Na4 Ne3 37. Rc6 Bf8 38. Kc1 Nf1 39. Kd1 Nxh2 40. Ke2 g5 41. c4 bxc3 42. Nxc3 g4 43. fxg4 Nxg4 44. Nd5 e4 45. b4 f4 46. Re6 f3+ 47. Ke1 f2+ 48. Ke2 1-0

[Event "NED-USA email"]
[Site "ICCF email"]
[Date "2013.04.11"]
[Round "?.59"]
[White "Koopmans, Perry E"]
[Black "Brzezinski, Brian"]
[Result "1/2-1/2"]
[ECO "D19"]
[WhiteElo "1739"]
[BlackElo "1764"]
[PlyCount "128"]
[EventDate "2013.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "USA"]
[SourceTitle "Corr 2015"]
[Source "ChessBase"]
[SourceDate "2015.07.17"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.17"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "US of America"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "USA"]

1. d4 Nf6 2. c4 d5 3. Nf3 c6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. 0-0 Nbd7 9. Qe2 Bg6 10. e4 0-0 11. e5 Nd5 12. Bd2 Ne7 13. Bd3 Bxd3 14. Qxd3 a5 15. Rfd1 h6 16. Ne4 Bxd2 17. Rxd2 Nb6 18. Nd6 Qc7 19. Ne1 Rfd8 20. Nc2 Nbc8 21. Ne4 Nb6 22. Ne3 Nbd5 23. Nd6 Ra6 24. Nec4 Nb6 25. b3 Nec8 26. Ne4 Nxc4 27. bxc4 c5 28. Nxc5 Rc6 29. Qe2 Ne7 30. Rad1 Nf5 31. f4 Qb6 32. Qf2 Rcc8 33. h4 Qc6 34. g4 Nxd4 35. Rxd4 Rxd4 36. Rxd4 Qxc5 37. Rd8+ Kh7 38. Rxc8 Qxc8 39. Qd4 g6 40. h5 gxh5 41. gxh5 Qc6 42. Qd3+ Kg7 43. Qg3+ Kh8 44. Qa3 Qb6+ 45. Kf1 Qb1+ 46. Kf2 Qc2+ 47. Kg3 Kg8 48. Qe7 Qb3+ 49. Kg4 Qxa4 50. Qxb7 Qd1+ 51. Kh4 Qe1+ 52. Kg4 Qe2+ 53. Kg3 Qxh5 54. Qa8+ Kg7 55. Qxa5 Qg6+ 56. Kf3 Qd3+ 57. Kg4 Qxc4 58. Qd8 Qe2+ 59. Kg3 Qe3+ 60. Kg4 Qg1+ 61. Kf3 Qg6 62. Kf2 Qf5 63. Ke3 h5 64. Qh4 Kg6 1/2-1/2

[Event "NED-USA email"]
[Site "ICCF email"]
[Date "2013.04.11"]
[Round "?.58"]
[White "Koopmans, Perry E"]
[Black "Cofer, David"]
[Result "1/2-1/2"]
[ECO "D58"]
[WhiteElo "1739"]
[BlackElo "1765"]
[PlyCount "53"]
[EventDate "2013.??.??"]
[EventType "team-match (corr)"]
[EventRounds "2"]
[EventCountry "USA"]
[SourceTitle "Corr 2015"]
[Source "ChessBase"]
[SourceDate "2015.07.17"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.17"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "US of America"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "USA"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bg5 h6 6. Bh4 0-0 7. e3 b6 8. Bd3 Nbd7 9. 0-0 Bb7 10. Qe2 c5 11. Rad1 Ne4 12. Bxe7 Qxe7 13. Bxe4 dxe4 14. Nd2 f5 15. f3 exf3 16. Nxf3 Rad8 17. Qe1 e5 18. Qh4 Qxh4 19. Nxh4 cxd4 20. exd4 exd4 21. Nd5 Ne5 22. Rxd4 Bxd5 23. cxd5 g6 24. Nf3 Rfe8 25. Rfd1 Nxf3+ 26. gxf3 Rd6 27. Kf2 1/2-1/2

[Event "W-Cup18 WS45 email"]
[Site "ICCF email"]
[Date "2011.10.30"]
[Round "?"]
[White "De Ridder, Michael"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "1959"]
[BlackElo "1784"]
[PlyCount "101"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2015"]
[Source "ChessBase"]
[SourceDate "2015.07.17"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Bg5 e6 5. e3 Be7 6. Rc1 dxc4 7. Bxc4 0-0 8. Nf3 b5 9. Bd3 Bb7 10. 0-0 Nbd7 11. e4 a6 12. e5 Nd5 13. Ne4 h6 14. Bxe7 Qxe7 15. Bb1 Rad8 16. Qd3 f5 17. exf6 N5xf6 18. Nh4 Nxe4 19. Ng6 Qb4 20. Nxf8 Nxf8 21. Qxe4 Rxd4 22. Qe5 c5 23. Rc2 Rd2 24. Rxd2 Qxd2 25. Qxc5 Qxb2 26. Rd1 Bd5 27. a3 Nd7 28. Qe7 Nf8 29. Qb4 Qe5 30. Bd3 Nd7 31. a4 Qg5 32. Be4 Bc4 33. Qd6 Qe5 34. f3 Qc5+ 35. Kh1 Qxd6 36. Rxd6 Nc5 37. a5 Nxe4 38. fxe4 b4 39. Rd4 Bb5 40. Rxb4 Bd3 41. Rb6 Kf7 42. e5 h5 43. h4 g6 44. Rb7+ Kf8 45. Kg1 Bc4 46. Kf2 Kg8 47. Ke3 Kf8 48. Kd4 Be2 49. Kc5 Ke8 50. Kd6 Bc4 51. Re7+ 1-0

[Event "W-Cup18 WS45 email"]
[Site "ICCF email"]
[Date "2011.10.30"]
[Round "?"]
[White "Kazoks, Aivars E"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2372"]
[BlackElo "1784"]
[PlyCount "51"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bg4 6. h3 Bxf3 7. Qxf3 c6 8. Bd2 Nbd7 9. 0-0-0 e6 10. Bc4 Qc7 11. g4 Nb6 12. Bb3 0-0-0 13. g5 Nfd5 14. Ne4 Bb4 15. c3 Ba5 16. a3 Rhf8 17. Kb1 e5 18. dxe5 Qxe5 19. Rhe1 Kb8 20. Nf6 Qd6 21. Nxd5 Nxd5 22. Bxd5 Bc7 23. Bb3 f6 24. gxf6 Rxf6 25. Qe4 Rdf8 26. Bg5 1-0

[Event "W-Cup18 WS45 email"]
[Site "ICCF email"]
[Date "2011.10.30"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Cuccumini, Vittorio"]
[Result "1/2-1/2"]
[ECO "D94"]
[WhiteElo "1784"]
[PlyCount "51"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Nf3 0-0 6. Be2 c5 7. 0-0 cxd4 8. exd4 Nc6 9. Be3 dxc4 10. Bxc4 a6 11. a3 b5 12. Be2 Be6 13. Ne5 Rc8 14. Rc1 Na5 15. Bf3 Nd7 16. Nxd7 Bb3 17. Qe1 Qxd7 18. Ne4 Rxc1 19. Qxc1 Bc4 20. Nc5 Qc8 21. Rd1 Nb3 22. Nxb3 Bxb3 23. Re1 Qxc1 24. Rxc1 Rd8 25. Bb7 Bxd4 26. Bxd4 1/2-1/2

[Event "W-Cup18 WS45 email"]
[Site "ICCF email"]
[Date "2011.10.30"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Dolganiuc, Victor"]
[Result "0-1"]
[ECO "E81"]
[WhiteElo "1784"]
[BlackElo "2159"]
[PlyCount "88"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 c5 7. d5 a6 8. a4 Nbd7 9. Nh3 Nh5 10. g4 Nhf6 11. Nf2 Qb6 12. Qc2 h5 13. a5 Qc7 14. g5 Ne8 15. f4 Rb8 16. Be2 b6 17. axb6 Qxb6 18. Nd3 Qb3 19. Qxb3 Rxb3 20. Bd2 e6 21. Bd1 Rb8 22. 0-0 Nb6 23. b3 exd5 24. exd5 Bd4+ 25. Kg2 Ng7 26. Re1 Nf5 27. h3 Bb7 28. Bf3 f6 29. Be4 fxg5 30. fxg5 Bc8 31. Rab1 Nh4+ 32. Kg3 Nf3 33. Bxf3 h4+ 34. Kg2 Bxh3+ 35. Kxh3 Rxf3+ 36. Kxh4 Rxd3 37. Ne4 Nd7 38. Bf4 Ne5 39. Bxe5 Bxe5 40. Re2 Kg7 41. Kg4 Rh8 42. Rg1 Rxb3 43. Nxc5 Rbh3 44. Ne6+ Kg8 0-1

[Event "W-Cup18 WS45 email"]
[Site "ICCF email"]
[Date "2011.10.30"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Kolomytchenko, Igor Aleksandrovich"]
[Result "0-1"]
[ECO "D15"]
[WhiteElo "1784"]
[BlackElo "2189"]
[PlyCount "74"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. e3 Nf6 4. Nc3 a6 5. Nf3 b5 6. cxb5 axb5 7. Bd2 b4 8. Na4 e6 9. b3 Ne4 10. Bd3 Nd7 11. Qc2 Nxd2 12. Nxd2 Bb7 13. 0-0 Be7 14. Rac1 Rc8 15. Nf3 h6 16. Nc5 Nxc5 17. dxc5 Qa5 18. e4 0-0 19. Ne5 Rc7 20. exd5 cxd5 21. Bh7+ Kh8 22. c6 Bd6 23. Nc4 dxc4 24. cxb7 Qe5 25. g3 g6 26. Bxg6 fxg6 27. Qxg6 Rg7 28. Qxh6+ Rh7 29. Qe3 c3 30. Rfe1 Qf5 31. Qe2 Rxb7 32. f4 Bc5+ 33. Kh1 Qd5+ 34. Qg2 Ra8 35. Rc2 Rba7 36. Qxd5 exd5 37. Ree2 d4 0-1

[Event "W-Cup18 WS45 email"]
[Site "ICCF email"]
[Date "2011.10.30"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Mercadal Benejam, Josep"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "1784"]
[BlackElo "2410"]
[PlyCount "76"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 0-0 6. cxd5 Nxd5 7. Be2 c5 8. Qb3 Nxc3 9. bxc3 Nc6 10. Bb2 Na5 11. Qb5 b6 12. 0-0 Qc7 13. Ba3 Nb7 14. Qd3 Nd6 15. e4 Bb7 16. e5 Ne4 17. Nd2 Nxd2 18. Qxd2 Rfd8 19. Qe3 cxd4 20. cxd4 Qd7 21. Rfd1 Rac8 22. f3 Bd5 23. Bb4 Bc4 24. a4 e6 25. h3 Qd5 26. Be1 Bxe2 27. Qxe2 Rc4 28. Bf2 Qc6 29. Rd2 Rxa4 30. Rxa4 Qxa4 31. Ra2 Qd7 32. Qa6 Ra8 33. f4 Bf8 34. d5 Qxd5 35. Bxb6 Bh6 36. g3 Rb8 37. Qxa7 Rxb6 38. Qa8+ Bf8 0-1

[Event "W-Cup18 WS45 email"]
[Site "ICCF email"]
[Date "2011.10.30"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Sabadell i Ximenes, David"]
[Result "0-1"]
[ECO "E81"]
[WhiteElo "1784"]
[BlackElo "2135"]
[PlyCount "66"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 c5 7. d5 a6 8. a4 e6 9. Bd3 exd5 10. cxd5 Nbd7 11. a5 Ne5 12. Nge2 Nfd7 13. 0-0 Rb8 14. Nf4 b5 15. axb6 Nxb6 16. Bxa6 Nbc4 17. Bxc4 Nxc4 18. Bc1 Nxb2 19. Qc2 Nc4 20. Nfe2 Rb4 21. Ra2 Qb6 22. Bd2 Nxd2 23. Qxd2 Ba6 24. Rc1 Bc4 25. Rac2 Bd3 26. Ra2 c4+ 27. Kh1 Qf2 28. Nd1 Qf1+ 29. Ng1 Rb1 30. Rxb1 Bxb1 31. Ra7 Bd3 32. Rc7 Bd4 33. h4 Qxg1# 0-1

[Event "W-Cup18 WS45 email"]
[Site "ICCF email"]
[Date "2011.10.30"]
[Round "?"]
[White "Koopmans, Perry E"]
[Black "Thompson, Brian"]
[Result "0-1"]
[ECO "D32"]
[WhiteElo "1784"]
[BlackElo "2184"]
[PlyCount "18"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd4 5. Qxd4 Nc6 6. Qd2 exd5 7. Qxd5 Bd7 8. Nf3 Nf6 9. Qd3 Rc8 0-1

[Event "W-Cup18 WS45 email"]
[Site "ICCF email"]
[Date "2011.10.30"]
[Round "?"]
[White "Plyusnin, Viktor Alekseevich"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1925"]
[BlackElo "1784"]
[PlyCount "109"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2015"]
[Source "ChessBase"]
[SourceDate "2015.07.17"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. Nxd4 Nf6 6. Nc3 0-0 7. f3 Re8 8. 0-0 Nxd4 9. Qxd4 c6 10. Be3 d6 11. Rad1 b5 12. Be2 Bb7 13. a3 Qc7 14. Bf4 Red8 15. Qf2 Bc8 16. Rfe1 Be6 17. Bd3 a6 18. h3 h6 19. Ne2 Nd7 20. Nd4 Ne5 21. Qg3 h5 22. Bg5 Bxg5 23. Nxe6 fxe6 24. Qxg5 Qb6+ 25. Kh1 Qf2 26. Be2 Rf8 27. Qd2 Rad8 28. Bc4 Qxd2 29. Bxe6+ Kh7 30. Rxd2 Rf6 31. Bb3 Kh6 32. Rf1 g5 33. Kh2 Kg6 34. c3 Kh6 35. Kg3 h4+ 36. Kf2 Kg6 37. a4 bxa4 38. Bxa4 a5 39. Ra1 Rb8 40. Bd1 Nc4 41. Rc2 a4 42. Be2 Nb6 43. Rd2 Kg7 44. Rd4 c5 45. Rd2 Re8 46. Kg1 c4 47. Rad1 Ree6 48. Bf1 Kf8 49. Rd4 Ke7 50. Bxc4 Re5 51. Ra1 Ra5 52. Bd3 Re6 53. Bc2 Ree5 54. Bxa4 Nxa4 55. Rdxa4 1-0

[Event "W-Cup18 WS45 email"]
[Site "ICCF email"]
[Date "2011.10.30"]
[Round "?"]
[White "Schilling, Hans"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "1935"]
[BlackElo "1784"]
[PlyCount "59"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4 5. h3 Bxf3 6. Qxf3 e6 7. Bd3 Be7 8. Nc3 0-0 9. 0-0 dxc4 10. Bxc4 Nbd7 11. Rd1 Qb6 12. b3 Nd5 13. Bb2 N7f6 14. Ne2 Rad8 15. e4 Nc7 16. Nf4 a5 17. a4 Rfe8 18. Rac1 Qa7 19. Bd3 Rc8 20. d5 exd5 21. exd5 cxd5 22. Bf5 Qb8 23. Bxc8 Rxc8 24. Be5 Bd8 25. Rc2 Nd7 26. Bd6 b6 27. Nxd5 Nc5 28. Nxb6 Qxb6 29. Rxc5 h6 30. Rc6 1-0

[Event "W-Cup18 WS45 email"]
[Site "ICCF email"]
[Date "2011.10.30"]
[Round "?"]
[White "Sorensen, Kristoffer Dyrgaard"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "D13"]
[WhiteElo "2321"]
[BlackElo "1784"]
[PlyCount "79"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Bg5 e6 5. e3 Be7 6. cxd5 cxd5 7. Bd3 Nc6 8. Nf3 0-0 9. 0-0 h6 10. Bh4 b6 11. a3 Bb7 12. Rc1 Rc8 13. Bg3 Nh5 14. Be5 Nf6 15. Qe2 Nxe5 16. Nxe5 Ne4 17. Nb5 a5 18. Rfd1 Bf6 19. Rxc8 Qxc8 20. f3 Nc5 21. Bb1 Bxe5 22. dxe5 Qd7 23. b4 axb4 24. axb4 Na6 25. Rc1 Ra8 26. Qd3 g6 27. Nd6 Nxb4 28. Qd4 Nc6 29. Qxb6 Rb8 30. Bxg6 fxg6 31. Nxb7 Rxb7 32. Qxc6 Qxc6 33. Rxc6 Kf7 34. f4 h5 35. Kf2 Ra7 36. Kg3 Ra3 37. Kh4 Rxe3 38. Rc7+ Ke8 39. Kg5 d4 40. Kf6 1-0

[Event "W-Cup18 WS45 email"]
[Site "ICCF email"]
[Date "2011.10.30"]
[Round "?"]
[White "Turczynski, Marian"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "D16"]
[WhiteElo "2295"]
[BlackElo "1784"]
[PlyCount "65"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Qa5 6. Bd2 Qf5 7. e3 Be6 8. Ne5 Nbd7 9. Nxc4 Qg6 10. Na5 Rb8 11. f3 Qh5 12. b4 Nb6 13. h4 Nfd5 14. Ne2 f5 15. Qc2 Qf7 16. Nxb7 Rxb7 17. Qxc6+ Rd7 18. a5 Nc4 19. Qxc4 Nxe3 20. Qc5 Nxf1 21. Kxf1 Bd5 22. Rc1 e6 23. Qb5 Qe7 24. Bg5 Qd6 25. Bf4 Qe7 26. Rc8+ Kf7 27. a6 g6 28. Be5 Rg8 29. h5 g5 30. h6 Bb3 31. Nc1 Bd5 32. Nd3 Kg6 33. Bg7 1-0

[Event "VW-Cup4 Gr12 email"]
[Site "ICCF email"]
[Date "2011.09.01"]
[Round "?"]
[White "Curado, Manuel Cruz P"]
[Black "Koopmans, Perry E"]
[Result "1-0"]
[ECO "B94"]
[WhiteElo "1967"]
[BlackElo "1784"]
[PlyCount "43"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e5 7. Nf5 Nc6 8. Qf3 Bxf5 9. exf5 Be7 10. Bxf6 Bxf6 11. 0-0-0 0-0 12. Nd5 a5 13. Kb1 a4 14. a3 Ra5 15. c3 Kh8 16. Bd3 Rc5 17. h4 h6 18. g4 Na5 19. g5 Rxd5 20. Qxd5 Be7 21. f6 gxf6 22. Qe4 1-0

