[Event "NED PRO-J email"]
[Site "ICCF email"]
[Date "2013.11.11"]
[Round "?"]
[White "De Geus, Alan"]
[Black "Koopman, Jan"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2186"]
[PlyCount "51"]
[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 c5 2. Nf3 Nf6 3. Nc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. e4 d6 7. Be2 0-0 8. 0-0 Nc6 9. Be3 e5 10. Ndb5 Ne8 11. Nd5 Be6 12. Qd2 Bxd5 13. cxd5 Ne7 14. Nxa7 f5 15. f3 Nf6 16. Qb4 Qb8 17. Nb5 f4 18. Bf2 Nc8 19. Rfc1 Nd7 20. Nc7 Nc5 21. Nxa8 Qxa8 22. a4 Na6 23. Bxa6 Qxa6 24. Rc7 g5 25. Qxb7 Qxb7 26. Rxb7 1-0

[Event "NED PRO-J email"]
[Site "ICCF email"]
[Date "2013.11.11"]
[Round "?"]
[White "Hettinga, Kasper"]
[Black "Koopman, Jan"]
[Result "1-0"]
[ECO "B04"]
[PlyCount "41"]
[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 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 e6 5. c3 Nb6 6. Bd3 Nc6 7. 0-0 dxe5 8. dxe5 Be7 9. Qc2 h6 10. Rd1 Bd7 11. Nbd2 Bg5 12. Ne4 Bxc1 13. Raxc1 Nd5 14. b4 a6 15. a3 0-0 16. c4 Nf4 17. Nc5 Nd4 18. Bh7+ Kh8 19. Rxd4 Ne2+ 20. Qxe2 Kxh7 21. Nxd7 1-0

[Event "NED PRO-J email"]
[Site "ICCF email"]
[Date "2013.11.11"]
[Round "?"]
[White "Hof, Eric Van 'T"]
[Black "Koopman, Jan"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "41"]
[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 Nf6 2. e5 Nd5 3. d4 e6 4. c4 Nb6 5. Nc3 d6 6. exd6 cxd6 7. Nf3 g6 8. Bf4 a6 9. Bd3 Bg7 10. Ne4 e5 11. dxe5 dxe5 12. Bg5 Qc7 13. c5 N6d7 14. 0-0 0-0 15. Be7 Re8 16. Bd6 Qc6 17. Bc4 h6 18. Bxf7+ Kxf7 19. Qb3+ Re6 20. Nfg5+ hxg5 21. Nxg5+ 1-0

[Event "NED PRO-J email"]
[Site "ICCF email"]
[Date "2013.11.11"]
[Round "?"]
[White "Koopman, Jan"]
[Black "De Geus, Alan"]
[Result "0-1"]
[ECO "C07"]
[BlackElo "2186"]
[PlyCount "74"]
[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 e6 2. d4 d5 3. Nd2 c5 4. c3 cxd4 5. cxd4 dxe4 6. Nxe4 Bb4+ 7. Nc3 Nf6 8. a3 Bxc3+ 9. bxc3 e5 10. Nf3 e4 11. Bb5+ Bd7 12. Bxd7+ Nbxd7 13. Ng5 0-0 14. 0-0 h6 15. Nh3 Rc8 16. Qb3 Nb6 17. Nf4 Qc7 18. Bd2 Nc4 19. Bc1 Na5 20. Qc2 Qc4 21. Be3 b6 22. Ne2 Nd5 23. Rab1 Qd3 24. Rbc1 Nc4 25. Rfd1 Qxc2 26. Rxc2 Ndxe3 27. fxe3 Nxe3 28. Rdc1 Nxc2 29. Rxc2 f5 30. g3 g5 31. Kf2 f4 32. gxf4 gxf4 33. a4 Rc4 34. h4 Rf7 35. d5 Rxa4 36. c4 Ra1 37. Ng1 e3+ 0-1

[Event "NED PRO-J email"]
[Site "ICCF email"]
[Date "2013.11.11"]
[Round "?"]
[White "Koopman, Jan"]
[Black "Hettinga, Kasper"]
[Result "0-1"]
[ECO "C39"]
[PlyCount "26"]
[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. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Nxg4 Nxe4 7. Qe2 Qe7 8. d3 Ng3 9. Qxe7+ Bxe7 10. Rh2 d5 11. Nf2 0-0 12. Bxf4 Re8 13. Bxg3 Bb4+ 0-1

[Event "NED PRO-J email"]
[Site "ICCF email"]
[Date "2013.11.11"]
[Round "?"]
[White "Koopman, Jan"]
[Black "Hof, Eric Van 'T"]
[Result "0-1"]
[ECO "B21"]
[PlyCount "62"]
[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 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 e6 7. 0-0 Nf6 8. Qe2 Be7 9. Rd1 e5 10. Bg5 0-0 11. Nb5 Ne8 12. h4 Bg4 13. Qd3 Bxg5 14. hxg5 Bxf3 15. Qxf3 a6 16. Nc3 Qxg5 17. Ne2 Rc8 18. Bb3 h5 19. Ng3 g6 20. Ne2 Kg7 21. a3 h4 22. Qh3 Nf6 23. Rxd6 Nd4 24. Nxd4 Rc1+ 25. Rxc1 Qxc1+ 26. Kh2 Qf4+ 27. Kg1 Qc1+ 28. Kh2 exd4 29. Rxd4 Qxb2 30. Rc4 b5 31. f4 bxc4 0-1

[Event "NED PRO-J email"]
[Site "ICCF email"]
[Date "2013.11.11"]
[Round "?"]
[White "Koopman, Jan"]
[Black "Massy, Giel"]
[Result "0-1"]
[ECO "B21"]
[BlackElo "2276"]
[PlyCount "82"]
[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 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 Nf6 7. 0-0 e6 8. Qe2 a6 9. Rd1 Qc7 10. Bf4 Be7 11. e5 Nh5 12. exd6 Nxf4 13. dxc7 Nxe2+ 14. Nxe2 Bd7 15. Rd2 Rc8 16. Rad1 Rxc7 17. Bb3 Bf6 18. g4 Na5 19. g5 Nxb3 20. axb3 Be7 21. Nc3 Bc6 22. Rd3 Bxf3 23. Rxf3 Bxg5 24. Ne4 Be7 25. Nd6+ Bxd6 26. Rxd6 Ke7 27. Rfd3 h5 28. R6d4 Rh6 29. Kg2 Rg6+ 30. Kf3 Rg4 31. Rxg4 hxg4+ 32. Kxg4 Rc2 33. Kg3 Rxb2 34. Kg2 g6 35. h4 a5 36. Kg3 e5 37. Kf3 b5 38. Kg2 a4 39. bxa4 bxa4 40. Ra3 Rb4 41. Ra2 Rxh4 0-1

[Event "NED PRO-J email"]
[Site "ICCF email"]
[Date "2013.11.11"]
[Round "?"]
[White "Massy, Giel"]
[Black "Koopman, Jan"]
[Result "1-0"]
[ECO "B02"]
[WhiteElo "2276"]
[PlyCount "63"]
[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 Nf6 2. Nc3 d5 3. exd5 Nxd5 4. Bc4 e6 5. Nf3 Be7 6. 0-0 0-0 7. d4 Nxc3 8. bxc3 Nc6 9. Qe2 Re8 10. Bd3 e5 11. Nxe5 Nxe5 12. dxe5 Bc5 13. Rb1 Rb8 14. Qe4 g6 15. Re1 Bf5 16. Qc4 Bxd3 17. cxd3 Bb6 18. d4 c6 19. Bf4 Qd5 20. Qxd5 cxd5 21. Bd2 Kg7 22. Rb5 Rbd8 23. a4 Rb8 24. Reb1 Re7 25. Rxd5 h5 26. Bg5 Rc7 27. a5 Bxa5 28. Rxa5 Rxc3 29. d5 Rbc8 30. d6 f6 31. Bxf6+ Kh6 32. h4 1-0

