[Event "IBCA EU-ch blind 01st"]
[Site "Benasque"]
[Date "1995.07.14"]
[Round "9"]
[White "Van Duuren, Louis"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "B47"]
[PlyCount "36"]
[EventDate "1995.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nc6 7. 0-0 Nge7 8. Be3 Nxd4 9. Qxd4 Nc6 10. Qb6 Qxb6 11. Bxb6 Bb4 12. Na4 0-0 13. Bc5 Bxc5 14. Nxc5 Nd4 15. Bd3 d6 16. Na4 b5 17. Nb6 Rb8 18. Nxc8 Rfxc8 1/2-1/2

[Event "IBCA EU-ch blind 01st"]
[Site "Benasque"]
[Date "1995.07.13"]
[Round "8"]
[White "Boerefijn, Martinus"]
[Black "Bringulis, Guntis"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "69"]
[EventDate "1995.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. b4 Qxb4 5. Rb1 Qd6 6. Nf3 c6 7. Be2 Nf6 8. a4 b6 9. 0-0 e6 10. Ne1 Bb7 11. d3 Qc7 12. Ne4 Nxe4 13. dxe4 Bd6 14. f4 0-0 15. Nd3 Rd8 16. Qe1 c5 17. e5 Be7 18. Qg3 Nc6 19. c3 Ba6 20. Bb2 Rd7 21. Rbc1 c4 22. Ne1 Rd2 23. Rc2 Rad8 24. Bc1 Bc5+ 25. Kh1 R2d7 26. Nf3 Ne7 27. Qh3 Nf5 28. Nd2 Ne3 29. Rb2 Nxf1 30. Nxf1 Ba3 31. Rb1 Bxc1 32. Rxc1 Qc5 33. Bf3 Qa3 34. Re1 Qxc3 35. Qh4 0-1

[Event "IBCA EU-ch blind 01st"]
[Site "Benasque"]
[Date "1995.07.12"]
[Round "7"]
[White "Mora Manez, Julio"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "B80"]
[WhiteElo "2180"]
[PlyCount "85"]
[EventDate "1995.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. b3 Nc6 4. Bb2 a6 5. c4 d6 6. d4 cxd4 7. Nxd4 Bd7 8. g3 Nf6 9. Bg2 Be7 10. 0-0 0-0 11. Nc3 Rb8 12. Nce2 Qc7 13. Rc1 Ne8 14. Qd2 Nf6 15. h3 Qc8 16. Kh2 Nxd4 17. Nxd4 Qc5 18. Rfd1 Qc7 19. f4 Rbd8 20. Qe2 Bc8 21. Nf3 Nd7 22. h4 Rfe8 23. Bh3 Nf8 24. Rf1 f6 25. h5 e5 26. f5 h6 27. Nh4 Nh7 28. Rfd1 Bd7 29. c5 Bb5 30. Qe1 dxc5 31. a4 Bc6 32. Bf1 b5 33. Ng6 Ng5 34. Bg2 Qb7 35. axb5 Bxb5 36. Ba3 Bc6 37. Rxd8 Bxd8 38. Bxc5 Bxe4 39. Bxe4 Qxe4 40. Qxe4 Nxe4 41. Be3 Nd6 42. Rc6 Nxf5 43. Bc5 1/2-1/2

[Event "IBCA EU-ch blind 01st"]
[Site "Benasque"]
[Date "1995.07.11"]
[Round "6"]
[White "Durban Piera, Joan"]
[Black "Boerefijn, Martinus"]
[Result "1-0"]
[ECO "B39"]
[WhiteElo "2255"]
[PlyCount "49"]
[EventDate "1995.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 8. Qxg4 Nxd4 9. Qd1 Ne6 10. Bd3 d6 11. 0-0 0-0 12. Rc1 Bd7 13. b4 b6 14. Bb1 Bc6 15. f4 Nc7 16. f5 Ne8 17. Qg4 Bb7 18. Rf3 Rc8 19. Nd5 Bxd5 20. exd5 Nf6 21. Qh4 e6 22. dxe6 fxe6 23. fxg6 h5 24. Bg5 Qe7 25. Rcf1 1-0

[Event "IBCA EU-ch blind 01st"]
[Site "Benasque"]
[Date "1995.07.10"]
[Round "5"]
[White "Boerefijn, Martinus"]
[Black "Rosikhin, Igor"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "42"]
[EventDate "1995.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 g6 4. e3 Bg7 5. c3 0-0 6. h3 c5 7. Bd3 Nc6 8. 0-0 Qb6 9. Qc1 c4 10. Bc2 Na5 11. Nbd2 Bf5 12. Re1 Rfc8 13. e4 dxe4 14. Nxe4 Nd5 15. Bd2 Qc7 16. Ng3 Bxc2 17. Qxc2 b5 18. Qe4 e6 19. Ne2 Nc6 20. Nf4 Nce7 21. Nxe6 Qb6 1-0

[Event "IBCA EU-ch blind 01st"]
[Site "Benasque"]
[Date "1995.07.09"]
[Round "4"]
[White "Boerefijn, Martinus"]
[Black "Burdio Gracia, Delfin"]
[Result "1/2-1/2"]
[ECO "B21"]
[BlackElo "2160"]
[PlyCount "74"]
[EventDate "1995.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 e6 7. 0-0 Be7 8. Qe2 Nf6 9. Rd1 e5 10. h3 0-0 11. b4 a6 12. a4 Qc7 13. Ba3 Be6 14. Bxe6 fxe6 15. Rac1 Qb6 16. Qc4 Nd8 17. Qb3 Nh5 18. Rc2 Nf4 19. Kh2 Kh8 20. a5 Qa7 21. b5 axb5 22. Bxd6 Bxd6 23. Rxd6 Nc6 24. Qxb5 Nd4 25. Nxd4 exd4 26. Nd1 d3 27. Ra2 Qb8 28. e5 Qe8 29. Qxe8 Rfxe8 30. Rb6 Ng6 31. Rxb7 Nxe5 32. a6 h6 33. a7 Rec8 34. Ne3 Nc6 35. Rd7 Kh7 36. Rxd3 Rxa7 37. Rxa7 Nxa7 1/2-1/2

[Event "IBCA EU-ch blind 01st"]
[Site "Benasque"]
[Date "1995.07.07"]
[Round "2"]
[White "Boerefijn, Martinus"]
[Black "Zoltek, Tadeusz"]
[Result "0-1"]
[ECO "B22"]
[BlackElo "2260"]
[PlyCount "70"]
[EventDate "1995.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. Qxd4 e6 6. Nf3 Nc6 7. Qe4 Be7 8. Bd3 f5 9. Qe2 0-0 10. Nbd2 Nf4 11. Qf1 Qc7 12. Nc4 Nxd3+ 13. Qxd3 b5 14. Nd6 Nxe5 15. Nxe5 Bxd6 16. Nf3 Bb7 17. h3 a6 18. Bd2 Be4 19. Qe2 Bf4 20. Rg1 Bxf3 21. Qxf3 Bxd2+ 22. Kxd2 b4 23. cxb4 Rac8 24. Qb3 Qf4+ 25. Ke2 Qe4+ 26. Kf1 Rc2 27. Re1 Qc6 28. g3 Rc8 29. a3 Rd2 30. Rg2 Qc2 31. Qf3 Qxb2 32. Kg1 Rc1 33. Rxc1 Qxc1+ 34. Kh2 Rd1 35. g4 f4 0-1

[Event "IBCA-ol blind 08th fin-B"]
[Site "Zalaegerszeg"]
[Date "1988.04.29"]
[Round "6.1"]
[White "Boerefijn, Martinus"]
[Black "Lilley, Graham"]
[Result "0-1"]
[ECO "B08"]
[BlackElo "2055"]
[PlyCount "74"]
[EventDate "1988.04.24"]
[EventType "team-tourn"]
[EventRounds "6"]
[EventCountry "HUN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "England"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ENG"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 c6 5. Be2 b5 6. a3 Bg7 7. h3 Bb7 8. 0-0 0-0 9. Be3 Nbd7 10. Qd2 Qc7 11. Nh4 a6 12. f4 c5 13. Bf3 cxd4 14. Bxd4 e5 15. Bf2 Nc5 16. Rfe1 Rad8 17. f5 d5 18. exd5 e4 19. Bg4 Nxd5 20. Nxd5 Rxd5 21. Qc1 Na4 22. Rb1 Rfd8 23. Be3 Qg3 24. Bf2 Qe5 25. Nf3 Qc7 26. Nh2 Rd2 27. fxg6 hxg6 28. Re2 Qd6 29. Bh4 Bxb2 30. Qf1 Rxe2 31. Bxe2 Bd4+ 32. Kh1 Nc3 33. Rb3 Rd7 34. Ng4 f5 35. Nf2 Qf4 36. g3 e3+ 37. Kh2 Qxf2+ 0-1

[Event "IBCA-ol blind 08th fin-B"]
[Site "Zalaegerszeg"]
[Date "1988.04.28"]
[Round "5.1"]
[White "Pasteiner, Johann"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1980"]
[PlyCount "72"]
[EventDate "1988.04.24"]
[EventType "team-tourn"]
[EventRounds "6"]
[EventCountry "HUN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Austria"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "AUT"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 Nc6 3. c3 Nf6 4. e5 Nd5 5. d4 cxd4 6. cxd4 d6 7. Bc4 e6 8. 0-0 Nb6 9. Bb3 d5 10. Nc3 Be7 11. a3 0-0 12. Bc2 f5 13. exf6 Bxf6 14. Qd3 g6 15. Bh6 Re8 16. Rfe1 Nc4 17. b3 Nd6 18. Qd2 Nf7 19. Bf4 a6 20. Rad1 Bd7 21. Na4 b6 22. Nc3 Rc8 23. Re2 b5 24. Na2 Qa5 25. b4 Qd8 26. Nc1 a5 27. Nb3 axb4 28. axb4 Ra8 29. Nc5 Ra2 30. Qc3 Qc8 31. Qb3 Ra7 32. Qb1 Kg7 33. h4 Qd8 34. g3 Bc8 35. Re3 Rae7 36. Kg2 e5 1/2-1/2

[Event "IBCA-ol blind 08th fin-B"]
[Site "Zalaegerszeg"]
[Date "1988.04.27"]
[Round "4.1"]
[White "Boerefijn, Martinus"]
[Black "Eros, Pal"]
[Result "1/2-1/2"]
[ECO "B38"]
[BlackElo "2105"]
[PlyCount "35"]
[EventDate "1988.04.24"]
[EventType "team-tourn"]
[EventRounds "6"]
[EventCountry "HUN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Hungary"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "HUN"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 0-0 8. Be2 d6 9. Rc1 Bd7 10. 0-0 Nxd4 11. Bxd4 Bc6 12. f3 Qa5 13. a3 Rac8 14. Nd5 Nxd5 15. exd5 Ba4 16. Qd3 Bxd4+ 17. Qxd4 Qc5 18. Qxc5 1/2-1/2

[Event "IBCA-ol blind 08th fin-B"]
[Site "Zalaegerszeg"]
[Date "1988.04.26"]
[Round "3.1"]
[White "McElroy, Ernest"]
[Black "Boerefijn, Martinus"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "1930"]
[PlyCount "61"]
[EventDate "1988.04.24"]
[EventType "team-tourn"]
[EventRounds "6"]
[EventCountry "HUN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Ireland"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "IRL"]
[BlackTeamCountry "NED"]

1. d4 d5 2. Nf3 e6 3. e3 f5 4. Nbd2 Nd7 5. Ne5 Ngf6 6. Bd3 c6 7. Ndf3 Bd6 8. Nxd7 Nxd7 9. b3 0-0 10. Bb2 Bb4+ 11. c3 Bd6 12. Qc2 Qe7 13. c4 Nf6 14. 0-0 Bd7 15. Ne5 Rac8 16. f3 Be8 17. cxd5 cxd5 18. Qxc8 Bc6 19. Nxc6 Qf7 20. Ne7+ Qxe7 21. Qc2 f4 22. e4 dxe4 23. Bxe4 g5 24. Rae1 Nh5 25. Bd5 Rf6 26. Qc8+ Kg7 27. Re2 g4 28. Rfe1 gxf3 29. Rxe6 f2+ 30. Kxf2 Rxe6 31. Qxe6 1-0

[Event "IBCA-ol blind 08th fin-B"]
[Site "Zalaegerszeg"]
[Date "1988.04.25"]
[Round "2.1"]
[White "Boerefijn, Martinus"]
[Black "Sabanes Taure, Victor"]
[Result "1/2-1/2"]
[ECO "B07"]
[BlackElo "2150"]
[PlyCount "51"]
[EventDate "1988.04.24"]
[EventType "team-tourn"]
[EventRounds "6"]
[EventCountry "HUN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Spain"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ESP"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. Be3 c6 6. a4 Qa5 7. Qd2 b5 8. f3 b4 9. Nd1 0-0 10. g4 e5 11. h4 h5 12. g5 Nfd7 13. f4 exd4 14. Bxd4 Bxd4 15. Qxd4 Qc5 16. Qd2 Re8 17. Nf2 Ba6 18. Rh3 Rxe4 19. Kf1 Bxe2+ 20. Nxe2 Re8 21. Rd3 d5 22. c3 Na6 23. Rc1 Qb6 24. Rf3 bxc3 25. Qxc3 c5 26. Ng3 1/2-1/2

[Event "IBCA-ol blind 08th fin-B"]
[Site "Zalaegerszeg"]
[Date "1988.04.24"]
[Round "1.1"]
[White "Alon, Levi"]
[Black "Boerefijn, Martinus"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "1865"]
[PlyCount "71"]
[EventDate "1988.04.24"]
[EventType "team-tourn"]
[EventRounds "6"]
[EventCountry "HUN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Israel"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "ISR"]
[BlackTeamCountry "NED"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 h6 6. Bh4 Nbd7 7. e3 0-0 8. Rc1 c6 9. cxd5 exd5 10. Bd3 Ne4 11. Bxe7 Qxe7 12. 0-0 Ndf6 13. Ne5 Nd6 14. f3 Nd7 15. e4 Nxe5 16. dxe5 Qxe5 17. exd5 c5 18. Kh1 b6 19. Re1 Qf6 20. Ne4 Nxe4 21. Bxe4 Qd6 22. Bc2 Bb7 23. Qd3 g6 24. Re6 Qf4 25. Rce1 Qg5 26. f4 Qg4 27. h3 Qh5 28. R6e5 Qh4 29. f5 c4 30. Qc3 Rad8 31. fxg6 Rxd5 32. gxf7+ Rxf7 33. Re8+ Rf8 34. Rxf8+ Kxf8 35. Qh8+ Kf7 36. Qe8+ 1-0

[Event "IBCA-ol blind 08th prel-D"]
[Site "Zalaegerszeg"]
[Date "1988.04.22"]
[Round "5.1"]
[White "Magnusson, Jorgen"]
[Black "Boerefijn, Martinus"]
[Result "1-0"]
[ECO "A21"]
[WhiteElo "2255"]
[PlyCount "23"]
[EventDate "1988.04.18"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "HUN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Sweden"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "NED"]

1. c4 e5 2. Nc3 f5 3. d4 exd4 4. Qxd4 Nc6 5. Qe3+ Be7 6. Nd5 Nh6 7. Qg3 d6 8. Bxh6 gxh6 9. Qg7 Rf8 10. Qxh7 Be6 11. Qxh6 Qd7 12. Qxe6 1-0

[Event "IBCA-ol blind 08th prel-D"]
[Site "Zalaegerszeg"]
[Date "1988.04.21"]
[Round "4.1"]
[White "Boerefijn, Martinus"]
[Black "Zier, Ludwig"]
[Result "0-1"]
[ECO "B03"]
[BlackElo "2240"]
[PlyCount "64"]
[EventDate "1988.04.18"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "HUN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "German Fed Rep"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "GER"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Nc3 Be7 7. Bd3 Nc6 8. Be3 Bf6 9. Nge2 Bg4 10. h3 Bh5 11. g4 Bg6 12. Bxg6 hxg6 13. b3 Qd7 14. Ng3 0-0-0 15. Qd2 Rde8 16. Kf1 Kb8 17. Kg2 Bh4 18. a4 Rhf8 19. a5 Nc8 20. Rhb1 f5 21. gxf5 gxf5 22. b4 f4 23. Bxf4 Qf7 24. Nd5 g5 25. Be3 Qf3+ 26. Kh2 g4 27. b5 gxh3 28. Rg1 N6e7 29. Nxe7 Nxe7 30. c5 Nd5 31. Rae1 Nxe3 32. fxe3 Rg8 0-1

[Event "IBCA-ol blind 08th prel-D"]
[Site "Zalaegerszeg"]
[Date "1988.04.19"]
[Round "2.1"]
[White "Hatziapostolidis, Efstalotis"]
[Black "Boerefijn, Martinus"]
[Result "1-0"]
[ECO "A21"]
[PlyCount "59"]
[EventDate "1988.04.18"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "HUN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Greece"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "GRE"]
[BlackTeamCountry "NED"]

1. c4 e5 2. Nc3 f5 3. g3 Nf6 4. Bg2 d6 5. d3 Be7 6. Nf3 0-0 7. 0-0 c6 8. c5 Qc7 9. cxd6 Bxd6 10. Bd2 Qe7 11. Rb1 Kh8 12. b4 e4 13. dxe4 fxe4 14. Ng5 Bf5 15. e3 h6 16. Nh3 Bxb4 17. Qb3 Na6 18. Nf4 Rfd8 19. Rfd1 g5 20. Bh3 Bxh3 21. Ng6+ Kg7 22. Nxe7 Rd7 23. Nxc6 bxc6 24. Nxe4 Nd5 25. Bxb4 Naxb4 26. Qc4 a5 27. a3 Na6 28. Qxc6 Nac7 29. Nc5 Rdd8 30. e4 1-0

[Event "IBCA-ol blind 08th prel-D"]
[Site "Zalaegerszeg"]
[Date "1988.04.18"]
[Round "1.1"]
[White "Boerefijn, Martinus"]
[Black "Dobierzin, Olaf"]
[Result "1/2-1/2"]
[ECO "A04"]
[BlackElo "2075"]
[PlyCount "96"]
[EventDate "1988.04.18"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "HUN"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "German Dem Rep"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "DDR"]

1. e4 c5 2. Nf3 Nc6 3. d3 g6 4. g3 Bg7 5. Bg2 d6 6. 0-0 e6 7. c3 Nge7 8. Nbd2 0-0 9. a4 b6 10. Re1 Bb7 11. Nf1 Qd7 12. h4 d5 13. e5 d4 14. c4 Nb4 15. N1h2 h5 16. Qe2 Bc6 17. b3 Qb7 18. Bh3 Rac8 19. Ba3 Na6 20. Ng5 Nf5 21. Rad1 Nb8 22. Bc1 Nd7 23. Bf4 a6 24. Nf1 Nxe5 25. Bxe5 f6 26. Bxf6 Bxf6 27. Ne4 Bg7 28. Nfd2 Qc7 29. Bg2 Nh6 30. Bh3 e5 31. Ng5 Nf5 32. Nde4 Bd7 33. Bg2 Ne7 34. Qd2 Bh6 35. Qc2 Bg4 36. Rb1 Nc6 37. Rf1 Nb4 38. Qd2 Qe7 39. Rbc1 Bf5 40. Kh1 Qd7 41. Kh2 Kg7 42. Rcd1 Nc6 43. Qe2 Nd8 44. Ra1 a5 45. Rac1 Nf7 46. Nh3 Nd6 47. Nhg5 Bxg5 48. Nxg5 Rc7 1/2-1/2

[Event "IBCA Wch blind 06th"]
[Site "Moscow"]
[Date "1986.??.??"]
[Round "9"]
[White "Bhimani, Ratilal Zinabhai"]
[Black "Boerefijn, Martinus"]
[Result "0-1"]
[ECO "B21"]
[PlyCount "134"]
[EventDate "1986.10.06"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URS"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. f4 e6 3. Nf3 Nf6 4. e5 Nd5 5. d3 d6 6. c4 Nb6 7. Nc3 Nc6 8. Be2 Nd7 9. exd6 Bxd6 10. d4 cxd4 11. Nxd4 Nxd4 12. Qxd4 Nf6 13. c5 Be7 14. Be3 0-0 15. 0-0 Qxd4 16. Bxd4 Rd8 17. Rfd1 Rxd4 18. Rxd4 Bxc5 19. Rad1 Bd7 20. Kf1 Bxd4 21. Rxd4 Bc6 22. Kf2 Kf8 23. b4 a6 24. Rc4 Nd5 25. Nxd5 exd5 26. Rc5 Ke7 27. Bf3 Kd6 28. Ke3 Re8+ 29. Kd4 Re1 30. Rc2 h6 31. Rd2 Rb1 32. Kc3 Rc1+ 33. Kb3 Rc4 34. g3 Rc1 35. Bd1 Rc4 36. Bh5 g6 37. Bf3 Rc1 38. Kb2 Re1 39. a4 Re3 40. Bg2 b6 41. b5 axb5 42. axb5 Bb7 43. Rf2 Kc5 44. Bf1 d4 45. Rc2+ Rc3 46. Rxc3+ dxc3+ 47. Kxc3 Bd5 48. Bd3 Be6 49. Bc2 Bd7 50. Bb1 Bxb5 51. f5 g5 52. Ba2 f6 53. Bb3 Bc6 54. Kd3 Bd5 55. Bc2 b5 56. Ke3 b4 57. Bb1 Kc4 58. h4 Kc3 59. hxg5 hxg5 60. Be4 Bxe4 61. Kxe4 b3 62. Kd5 b2 63. Ke6 b1Q 64. Kxf6 Qb8 65. Kxg5 Qxg3+ 66. Kf6 Kd4 67. Ke6 Qe5+ 0-1

[Event "IBCA Wch blind 06th"]
[Site "Moscow"]
[Date "1986.??.??"]
[Round "11"]
[White "Bibas, David"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "B35"]
[PlyCount "48"]
[EventDate "1986.10.06"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URS"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 Qa5 8. 0-0 0-0 9. Bb3 d6 10. h3 Bd7 11. f4 Nxd4 12. Bxd4 Bc6 13. Qd3 Rad8 14. Rae1 e5 15. Be3 d5 16. fxe5 Nxe4 17. Bd4 Nc5 18. Bxc5 Qxc5+ 19. Kh1 Rfe8 20. Qf3 Rd7 21. Qf4 Qe7 22. Qd2 Qc5 23. Qf4 Qe7 24. Qd2 Qc5 1/2-1/2

[Event "corr"]
[Site "corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Boerefijn, Martinus"]
[Black "Bestman, Aren"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "61"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. Be3 c6 6. f4 Qc7 7. Nf3 Nbd7 8. Qd2 Ng4 9. Bg1 e5 10. h3 Ngf6 11. g4 exd4 12. Nxd4 Nc5 13. Bf3 Be6 14. g5 Nfd7 15. 0-0-0 0-0-0 16. b4 Na6 17. Ncb5 Qb8 18. Nxa7+ Qxa7 19. Nxc6 Qa8 20. Na7+ Kb8 21. b5 Ndc5 22. b6 Na4 23. e5 Bxa2 24. Qa5 N6c5 25. Bxc5 Nxc5 26. Qxa2 Rhf8 27. Rd5 h6 28. exd6 Nd7 29. Qc4 Rc8 30. Qc7+ Rxc7 31. dxc7# 1-0

[Event "IBCA Wch blind 06th"]
[Site "Moscow"]
[Date "1986.??.??"]
[Round "3"]
[White "Boerefijn, Martinus"]
[Black "Dobierzin, Olaf"]
[Result "1/2-1/2"]
[ECO "D03"]
[PlyCount "135"]
[EventDate "1986.10.06"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URS"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 d5 5. e3 0-0 6. Bd3 Nbd7 7. 0-0 h6 8. Bxf6 Bxf6 9. c3 c6 10. e4 dxe4 11. Nxe4 Bg7 12. Qc2 Qc7 13. Ned2 e5 14. dxe5 Nxe5 15. Nxe5 Bxe5 16. Nf3 Bf6 17. Rfe1 Bg4 18. Re3 Rad8 19. h3 Bc8 20. Rae1 Kg7 21. Ne5 Bg5 22. R3e2 Rfe8 23. Nf3 Rxe2 24. Qxe2 Bf6 25. Qc2 c5 26. Be4 Qa5 27. a3 Qb6 28. Bd3 Be6 29. Qe2 Bd5 30. Nh2 h5 31. Nf1 Qd6 32. Bc2 Qc6 33. Ne3 Re8 34. Qd1 Be6 35. Nf1 Rd8 36. Qe2 Rd6 37. Rd1 Rxd1 38. Qxd1 Bg5 39. Qe2 Bd5 40. Ne3 Qe6 41. Bd3 Bc6 42. Bc4 Qe5 43. Bd3 Qf4 44. Nf1 b6 45. Ne3 h4 46. Nf1 Bd8 47. Ne3 Bc7 48. Nf1 Qg5 49. Be4 Qe5 50. Bd3 Qxe2 51. Bxe2 Bf4 52. Ne3 f5 53. Bf3 Bxf3 54. gxf3 Kf7 55. Kf1 Ke6 56. Ke2 b5 57. Kd3 g5 58. Ke2 a5 59. Ke1 a4 60. Ke2 Be5 61. Ke1 b4 62. Kd2 bxc3+ 63. bxc3 Bg7 64. Kd3 Bf6 65. Kd2 Be5 66. Kd3 Bf4 67. Kd2 Be5 68. Kd3 1/2-1/2

[Event "IBCA Wch blind 06th"]
[Site "Moscow"]
[Date "1986.??.??"]
[Round "9"]
[White "Boerefijn, Martinus"]
[Black "Hammermayer, Franz"]
[Result "1/2-1/2"]
[ECO "A46"]
[PlyCount "74"]
[EventDate "1986.10.06"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URS"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. Bg5 Nbd7 4. Nbd2 h6 5. Bh4 g5 6. Bg3 Bg7 7. h3 e5 8. dxe5 Nh5 9. Bh2 Nxe5 10. e3 Nc6 11. c3 Nf6 12. Bb5 Bd7 13. Qc2 Qe7 14. Nb3 a6 15. Bd3 Ne5 16. Be2 Nc6 17. Nbd4 Ne4 18. Bd3 Nc5 19. Bf5 Bxf5 20. Nxf5 Qf6 21. 0-0-0 Ne6 22. Kb1 0-0-0 23. N3d4 Ne7 24. Nxe7+ Qxe7 25. Nf5 Qf8 26. Rd5 Bf6 27. Rhd1 Be7 28. e4 f6 29. f3 Ng7 30. Nxg7 Qxg7 31. Qf2 Kb8 32. Bg1 b6 33. Qe2 Kb7 34. Qc4 Qf7 35. Qe2 Rhe8 36. Qc2 Bf8 37. Qe2 Re5 1/2-1/2

[Event "IBCA Wch blind 06th"]
[Site "Moscow"]
[Date "1986.??.??"]
[Round "6"]
[White "Boerefijn, Martinus"]
[Black "Lilley, Graham"]
[Result "0-1"]
[ECO "B20"]
[PlyCount "100"]
[EventDate "1986.10.06"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URS"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. f4 d6 6. Nf3 Bg7 7. c3 Nge7 8. 0-0 0-0 9. Be3 f5 10. Nbd2 Rb8 11. Qe2 b5 12. e5 Nd5 13. Bf2 Bb7 14. exd6 Qxd6 15. Nb3 Rfe8 16. Bxc5 Qc7 17. d4 Ba8 18. Nc1 e5 19. fxe5 Nxe5 20. Nxe5 Bxe5 21. Qf2 Bg7 22. Nd3 Bh6 23. Nf4 Nxf4 24. gxf4 Bxg2 25. Qxg2 Re4 26. Rae1 Rbe8 27. Rxe4 Rxe4 28. Qc2 Bxf4 29. Qb3+ Kh8 30. Qd5 Bxh2+ 31. Kh1 Rh4 32. Qa8+ Qb8 33. Qxb8+ Bxb8+ 34. Kg1 Kg8 35. Re1 Re4 36. Rxe4 fxe4 37. Kf2 h5 38. Ke3 h4 39. Kxe4 h3 40. Kf3 g5 41. d5 g4+ 42. Kf2 g3+ 43. Kg1 Kf7 44. b3 Kf6 45. c4 bxc4 46. bxc4 Ke5 47. d6 Bxd6 48. Bxa7 Ke4 49. c5 Bc7 50. c6 Kf3 0-1

[Event "IBCA Wch blind 06th"]
[Site "Moscow"]
[Date "1986.??.??"]
[Round "8"]
[White "Boerefijn, Martinus"]
[Black "Torres de Jesus, Saulo"]
[Result "0-1"]
[ECO "B21"]
[PlyCount "66"]
[EventDate "1986.10.06"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URS"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Qa5 4. Qxd4 Nc6 5. Qd1 Nf6 6. Bd3 d5 7. Nd2 g6 8. Ne2 Bg7 9. 0-0 0-0 10. Ng3 Rd8 11. Qe2 d4 12. Nb3 Qb6 13. c4 Bg4 14. f3 Be6 15. Nd2 Ne5 16. b3 Nfd7 17. Ba3 Nxd3 18. Qxd3 Ne5 19. Qb1 d3+ 20. c5 Qa5 21. Qc1 Nxf3+ 22. gxf3 Bxa1 23. Qxa1 Qxa3 24. f4 Qxc5+ 25. Rf2 Bh3 26. f5 Rac8 27. Ngf1 Qd4 28. Qd1 gxf5 29. exf5 Kh8 30. Ng3 Rg8 31. Qe1 Rc2 32. Kh1 Rxa2 33. Qxe7 Rxd2 0-1

[Event "IBCA Wch blind 06th"]
[Site "Moscow"]
[Date "1986.??.??"]
[Round "5"]
[White "Cabarkapa, Milenko"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "A92"]
[WhiteElo "2285"]
[PlyCount "70"]
[EventDate "1986.10.06"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URS"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. c4 d6 6. b3 0-0 7. Bb2 Qe8 8. Nc3 c6 9. e3 Na6 10. a3 Nc7 11. Qc2 Bd7 12. b4 Qh5 13. Ne2 Ne4 14. Nf4 Qf7 15. 0-0 g5 16. Nd3 Qh5 17. c5 d5 18. Nfe5 Be8 19. f3 Nf6 20. a4 Qh6 21. Bc1 Qg7 22. Bd2 h5 23. Kh1 Kh8 24. Rfb1 Rg8 25. Be1 Qh7 26. Qe2 a6 27. Nf2 g4 28. Nfd3 gxf3 29. Bxf3 Ng4 30. Bxg4 fxg4 31. Nf4 Bf6 32. Ned3 Bg6 33. Nxg6+ Qxg6 34. Nf4 Qf5 35. Bc3 e5 1/2-1/2

[Event "IBCA Wch blind 06th"]
[Site "Moscow"]
[Date "1986.??.??"]
[Round "4"]
[White "Fesche, Svein Tore"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "D06"]
[PlyCount "7"]
[EventDate "1986.10.06"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URS"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Nf3 1/2-1/2

[Event "IBCA Wch blind 06th"]
[Site "Moscow"]
[Date "1986.??.??"]
[Round "2"]
[White "Heinich, Manfred"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "E12"]
[PlyCount "46"]
[EventDate "1986.10.06"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URS"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 b6 2. c4 e6 3. Nf3 Bb7 4. a3 Nf6 5. Nc3 Be7 6. d5 0-0 7. e4 d6 8. Be2 e5 9. 0-0 Ne8 10. b4 Bc8 11. Qb3 Kh8 12. c5 Nd7 13. cxb6 cxb6 14. Ne1 g6 15. Nd3 Ng7 16. Bd2 f5 17. Rac1 Nf6 18. f3 Bd7 19. Rc2 Qe8 20. Nf2 fxe4 21. Nfxe4 Nxe4 22. fxe4 Rxf1+ 23. Bxf1 Nh5 1/2-1/2

[Event "IBCA Wch blind 06th"]
[Site "Moscow"]
[Date "1986.??.??"]
[Round "7"]
[White "Novak, Ivan"]
[Black "Boerefijn, Martinus"]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "2270"]
[PlyCount "63"]
[EventDate "1986.10.06"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "URS"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 e6 7. 0-0 Be7 8. Qe2 a6 9. Rd1 Qc7 10. Bf4 Nf6 11. Rac1 0-0 12. Bb3 Qb8 13. h3 Ne5 14. Nd4 Bd7 15. Bg3 Nc6 16. Nxc6 Bxc6 17. Nd5 Bxd5 18. exd5 e5 19. f4 exf4 20. Bxf4 Qd8 21. Rc3 Re8 22. Rdc1 Nd7 23. Re3 f6 24. Bc2 Ne5 25. Bxe5 fxe5 26. Qh5 h6 27. Rg3 Bg5 28. Qg6 Qf6 29. Qh7+ Kf8 30. Rf1 Bf4 31. Rg6 Be3+ 32. Kh2 1-0

[Event "IBCA blind Olympiad 07th fin-B"]
[Site "Benidorm"]
[Date "1985.05.18"]
[Round "7.1"]
[White "Magnusson, Jorgen"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "A06"]
[PlyCount "42"]
[EventDate "1985.05.12"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ESP"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Sweden (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "NED"]

1. Nf3 Nf6 2. b3 d5 3. Bb2 e6 4. e3 Be7 5. Ne5 Nbd7 6. f4 0-0 7. Nxd7 Bxd7 8. d3 c5 9. Nd2 Rc8 10. Qf3 Qa5 11. a3 b5 12. Be2 a6 13. Rd1 Qb6 14. 0-0 c4 15. Bd4 Bc5 16. Bxc5 Qxc5 17. b4 Qb6 18. d4 Rcd8 19. c3 Qb7 20. Kh1 Ne4 21. Qh5 Nxc3 1/2-1/2

[Event "IBCA blind Olympiad 07th fin-B"]
[Site "Benidorm"]
[Date "1985.05.17"]
[Round "6.1"]
[White "Boerefijn, Martinus"]
[Black "Fesche, Svein Tore"]
[Result "1/2-1/2"]
[ECO "B21"]
[PlyCount "41"]
[EventDate "1985.05.12"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ESP"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Norway (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NOR"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 Nf6 7. e5 d5 8. Nxd5 Nxd5 9. Qxd5 Qxd5 10. Bxd5 Bd7 11. Bd2 e6 12. Be4 Bc5 13. Rc1 Bb6 14. 0-0 h6 15. Bc3 0-0 16. Rfd1 Rfd8 17. Rd2 Be8 18. Rcd1 Rxd2 19. Rxd2 Rd8 20. Rxd8 Nxd8 21. Bd2 1/2-1/2

[Event "IBCA blind Olympiad 07th fin-B"]
[Site "Benidorm"]
[Date "1985.05.16"]
[Round "5.1"]
[White "Rubio Mancebon, Pedro Jose"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "D06"]
[PlyCount "60"]
[EventDate "1985.05.12"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ESP"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Spain (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "ESP"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 Bf5 3. Qb3 e5 4. cxd5 exd4 5. Qa4+ c6 6. Qxd4 Bxb1 7. Rxb1 cxd5 8. Bd2 Nc6 9. Qa4 Nf6 10. Nf3 Be7 11. g3 0-0 12. Bg2 Qb6 13. 0-0 Rfd8 14. Rfd1 Bc5 15. e3 a5 16. Bc3 Ne4 17. Bd4 Rd6 18. a3 Rad8 19. Qc2 Bxd4 20. Nxd4 Nxd4 21. Rxd4 Nf6 22. Rbd1 R6d7 23. Qd2 Qc7 24. Rc1 Qb6 25. Rd1 Qc7 26. h3 b6 27. Rc1 Qb8 28. Rd1 Qc7 29. Rc1 Qb8 30. Rd1 Qc7 1/2-1/2

[Event "IBCA blind Olympiad 07th fin-B"]
[Site "Benidorm"]
[Date "1985.05.15"]
[Round "4.1"]
[White "Boerefijn, Martinus"]
[Black "McElroy, Ernest"]
[Result "0-1"]
[ECO "B40"]
[PlyCount "60"]
[EventDate "1985.05.12"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ESP"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Ireland (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "IRL"]

1. e4 c5 2. d4 e6 3. Nf3 cxd4 4. c3 d3 5. Bxd3 Nc6 6. 0-0 d5 7. e5 g6 8. Bf4 Bg7 9. Na3 a6 10. Nc2 Nge7 11. Qe2 Qb6 12. Ne3 h5 13. Rac1 Bd7 14. c4 Nd4 15. Qd1 Nxf3+ 16. Qxf3 Bc6 17. Qe2 Qd4 18. g3 Rd8 19. Rfd1 Qb6 20. Bg5 Rd7 21. Bf6 0-0 22. g4 hxg4 23. Bxe7 Rxe7 24. Nxg4 dxc4 25. Nf6+ Bxf6 26. exf6 cxd3 27. Qxd3 Rd7 28. Qh3 Rxd1+ 29. Rxd1 Qxb2 30. Qh4 Qe5 0-1

[Event "IBCA blind Olympiad 07th fin-B"]
[Site "Benidorm"]
[Date "1985.05.14"]
[Round "3.1"]
[White "Tiefenbacher, Walter"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "B41"]
[PlyCount "47"]
[EventDate "1985.05.12"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ESP"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Austria (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "AUT"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Nc6 8. Nde2 d5 9. exd5 exd5 10. 0-0 dxc4 11. Bxc4 0-0 12. Bg5 Be7 13. h3 Qa5 14. Bf4 b5 15. Bd5 Bb7 16. Bf3 Rad8 17. Qb3 Qb6 18. Be3 Qc7 19. Bf4 Bd6 20. Bxd6 Rxd6 21. Ne4 Nxe4 22. Bxe4 Na5 23. Qc3 Qxc3 24. Nxc3 1/2-1/2

[Event "IBCA blind Olympiad 07th fin-B"]
[Site "Benidorm"]
[Date "1985.05.13"]
[Round "2.1"]
[White "Boerefijn, Martinus"]
[Black "Eros, Pal"]
[Result "1/2-1/2"]
[ECO "D01"]
[PlyCount "39"]
[EventDate "1985.05.12"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ESP"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Hungary (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "HUN"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. Nf3 e6 5. e3 Be7 6. Bd3 c5 7. 0-0 0-0 8. Re1 b6 9. e4 dxe4 10. Nxe4 Bb7 11. dxc5 Nxc5 12. Nxc5 Bxc5 13. Qe2 Qc7 14. Ne5 Be7 15. Rad1 Rad8 16. Bc4 Ne4 17. Bxe7 Qxe7 18. Bd3 Nf6 19. c4 Qc5 20. a3 1/2-1/2

[Event "IBCA blind Olympiad 07th fin-B"]
[Site "Benidorm"]
[Date "1985.05.12"]
[Round "1.1"]
[White "Kristensen, Bent Overgaard"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "B42"]
[PlyCount "37"]
[EventDate "1985.05.12"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ESP"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Denmark (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "DEN"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Bd3 d6 7. Nc3 Be7 8. 0-0 Nbd7 9. b3 Qc7 10. Bb2 0-0 11. Rc1 b6 12. Qe2 Bb7 13. Kh1 Rad8 14. f4 Rfe8 15. Nf3 Qb8 16. Nd2 h6 17. Rce1 Nh7 18. Nd1 f6 19. Nf3 1/2-1/2

[Event "IBCA blind Olympiad 07th prel-A"]
[Site "Benidorm"]
[Date "1985.05.10"]
[Round "5.1"]
[White "Krylov, Sergey"]
[Black "Boerefijn, Martinus"]
[Result "1-0"]
[ECO "C40"]
[PlyCount "53"]
[EventDate "1985.05.06"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "ESP"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Soviet Union (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "URS"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 fxe4 6. Nc3 Qg6 7. Ne3 Nf6 8. Be2 c6 9. 0-0 d5 10. f3 exf3 11. Rxf3 Bd6 12. Bd3 Qh5 13. h3 0-0 14. Bf5 Bxf5 15. Nxf5 Bc7 16. g4 Qe8 17. Re3 Qd8 18. Re7 Rf7 19. Rxf7 Kxf7 20. g5 Ne8 21. Qh5+ Kg8 22. g6 Nf6 23. gxh7+ Nxh7 24. Bh6 Nd7 25. Re1 Ndf8 26. Ne7+ Kh8 27. Qf7 1-0

[Event "IBCA blind Olympiad 07th prel-A"]
[Site "Benidorm"]
[Date "1985.05.09"]
[Round "4.1"]
[White "Boerefijn, Martinus"]
[Black "Magnusson, Jorgen"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "56"]
[EventDate "1985.05.06"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "ESP"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Sweden (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "SWE"]

1. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. Qxd4 e6 6. Nf3 Nc6 7. Qe4 d6 8. Nbd2 dxe5 9. Nxe5 Nxe5 10. Qxe5 Qf6 11. Bb5+ Bd7 12. Bxd7+ Kxd7 13. Qe2 Rc8 14. Ne4 Qf5 15. 0-0 Kc7 16. Rd1 Be7 17. c4 Nf4 18. Qe3 g5 19. Ng3 Rhd8 20. Bd2 Qc5 21. Qf3 Qe5 22. Re1 Qf6 23. Ne4 Qf5 24. Ng3 Nh3+ 25. Kf1 Qxf3 26. Ba5+ b6 27. Bxb6+ Kxb6 28. gxf3 Rxc4 0-1

[Event "IBCA blind Olympiad 07th prel-A"]
[Site "Benidorm"]
[Date "1985.05.07"]
[Round "2.1"]
[White "Pugliese, Giuseppe"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "B42"]
[PlyCount "59"]
[EventDate "1985.05.06"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "ESP"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Italy (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "ITA"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nc6 6. c3 Qc7 7. Nd2 Nf6 8. 0-0 d5 9. Re1 Bd6 10. N2f3 dxe4 11. Bxe4 Ne7 12. Bd3 Bd7 13. Qe2 h6 14. Ne5 Bxe5 15. Qxe5 Qxe5 16. Rxe5 Nc6 17. Nxc6 Bxc6 18. Re1 Rd8 19. Bc2 0-0 20. Be3 Rfe8 21. Rad1 Nd5 22. Bc1 Nf6 23. f3 Bd5 24. a3 Rc8 25. Be3 Nd7 26. Rd2 Nc5 27. Red1 Nd7 28. Kf2 Ne5 29. Be4 Nc4 30. Rc2 1/2-1/2

[Event "IBCA blind Olympiad 07th prel-A"]
[Site "Benidorm"]
[Date "1985.05.06"]
[Round "1.1"]
[White "Boerefijn, Martinus"]
[Black "Carlin, Geoffrey"]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "51"]
[EventDate "1985.05.06"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "ESP"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "England (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ENG"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Bd3 cxd4 7. cxd4 Nge7 8. Nc3 Ng6 9. 0-0 Be7 10. Be3 0-0 11. Qe2 f6 12. exf6 Bxf6 13. Rac1 Qe7 14. a3 Rac8 15. Rfe1 a6 16. b4 Qd6 17. Qd2 Be8 18. Na4 e5 19. dxe5 Ngxe5 20. Bc5 Nxf3+ 21. gxf3 Qd8 22. Bxf8 Ne5 23. Be2 Bxa4 24. Rxc8 Qxc8 25. Bd6 Bc6 26. Bxe5 1/2-1/2

[Event "IBCA blind Olympiad 06th fin-B"]
[Site "Noordwijkerhout"]
[Date "1980.08.25"]
[Round "6.1"]
[White "Boerefijn, Martinus"]
[Black "Tonteri, Ari"]
[Result "0-1"]
[ECO "B84"]
[PlyCount "56"]
[EventDate "1980.08.19"]
[EventType "team-tourn"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Finland (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "FIN"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. Be3 Nbd7 8. Nb3 b5 9. a3 Bb7 10. Bf3 Ne5 11. Qe2 Qc7 12. Bf4 Rc8 13. Nd2 Be7 14. 0-0 0-0 15. Rac1 Rfd8 16. g4 Nxf3+ 17. Qxf3 e5 18. Bg3 d5 19. exd5 Nxd5 20. Nxd5 Rxd5 21. Qe2 Bg5 22. f4 exf4 23. Rce1 Qc6 24. Bxf4 Rxd2 25. Qxd2 Qh1+ 26. Kf2 Qg2+ 27. Ke3 Bxf4+ 28. Rxf4 Re8+ 0-1

[Event "IBCA blind Olympiad 06th fin-B"]
[Site "Noordwijkerhout"]
[Date "1980.08.24"]
[Round "5.1"]
[White "Burdio Gracia, Delfin"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "64"]
[EventDate "1980.08.19"]
[EventType "team-tourn"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Spain (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "ESP"]
[BlackTeamCountry "NED"]

1. d4 d5 2. Nf3 Bf5 3. c3 c6 4. Bf4 Qb6 5. Qc1 e6 6. Nbd2 Nf6 7. e3 Nbd7 8. Be2 Be7 9. Nh4 Bg6 10. Nxg6 hxg6 11. h3 c5 12. Nf3 Ne4 13. Nd2 Ndf6 14. f3 Nxd2 15. Qxd2 cxd4 16. exd4 Nh5 17. 0-0-0 Rc8 18. Be3 Ng3 19. Rhe1 Qa5 20. Kb1 b5 21. Qc2 Nf5 22. Bd2 Qb6 23. Qd3 Nd6 24. Qe3 a5 25. Bd3 Nc4 26. Bxc4 Rxc4 27. Rc1 Kd7 28. f4 b4 29. b3 bxc3 30. Bxc3 Rhc8 31. Bb2 Rxc1+ 32. Rxc1 Rxc1+ 1/2-1/2

[Event "IBCA blind Olympiad 06th fin-B"]
[Site "Noordwijkerhout"]
[Date "1980.08.23"]
[Round "4.1"]
[White "Boerefijn, Martinus"]
[Black "Hansen, Aage"]
[Result "1-0"]
[ECO "A47"]
[PlyCount "80"]
[EventDate "1980.08.19"]
[EventType "team-tourn"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Denmark (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "DEN"]

1. d4 Nf6 2. Nf3 b6 3. Bg5 Bb7 4. e3 e6 5. Bd3 Be7 6. Nbd2 d6 7. 0-0 Nbd7 8. c3 0-0 9. Qc2 h6 10. Bh4 c5 11. e4 Rc8 12. Qd1 a6 13. a4 e5 14. Qe2 Ra8 15. Rfd1 Nh5 16. Bg3 Nxg3 17. hxg3 Bf6 18. Nc4 Qc7 19. dxe5 dxe5 20. Ne3 Rfe8 21. Nf5 Be7 22. Nh2 Nf6 23. Ng4 Kh7 24. Bc4 Nxg4 25. Qxg4 Bf6 26. Nd6 Re7 27. Nf5 Ree8 28. Nd6 Re7 29. Nf5 Ree8 30. Rd6 Rg8 31. Rad1 Rad8 32. Qh5 Bxe4 33. Bxf7 Bxf5 34. Bxg8+ Kxg8 35. Rxd8+ Bxd8 36. Qxf5 Bf6 37. Qe6+ Kh7 38. Rd7 Qb8 39. Qf7 Qc8 40. Qe6 Qf8 1-0

[Event "IBCA blind Olympiad 06th fin-B"]
[Site "Noordwijkerhout"]
[Date "1980.08.21"]
[Round "3.1"]
[White "Lilley, Graham"]
[Black "Boerefijn, Martinus"]
[Result "1-0"]
[ECO "D06"]
[PlyCount "99"]
[EventDate "1980.08.19"]
[EventType "team-tourn"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "England (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "ENG"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 Bf5 3. cxd5 Bxb1 4. Qa4+ c6 5. Rxb1 Qxd5 6. e3 Nd7 7. Nf3 Nb6 8. Qc2 Qxa2 9. Bd3 Nf6 10. 0-0 Qe6 11. e4 g6 12. Ng5 Qd7 13. e5 Nfd5 14. e6 fxe6 15. Bxg6+ Kd8 16. Bf7 Kc7 17. Nxe6+ Kb8 18. Bg5 a6 19. Rfe1 Ka7 20. Re2 Nc7 21. Nxc7 Qxc7 22. d5 Qd6 23. Qc3 Bh6 24. Re6 Qxd5 25. Bxh6 Qf5 26. Rbe1 Qxf7 27. Rxe7 Qg6 28. Rxb7+ Kxb7 29. Re7+ Nd7 30. Rxd7+ Kc8 31. Re7 Rg8 32. Qh3+ Qg4 33. Qxg4+ Rxg4 34. Rxh7 Rb8 35. Bg7 Rb5 36. g3 Rg6 37. h4 Rb7 38. Rh8+ Kd7 39. Bc3 Rb5 40. h5 Rgg5 41. h6 Rh5 42. Bg7 Kd6 43. Kg2 a5 44. g4 Rh4 45. f3 Ke6 46. Rf8 Ke7 47. Kg3 Rh1 48. Kf4 a4 49. Ra8 Rb4+ 50. Kg5 1-0

[Event "IBCA blind Olympiad 06th fin-B"]
[Site "Noordwijkerhout"]
[Date "1980.08.20"]
[Round "2.1"]
[White "Boerefijn, Martinus"]
[Black "Tiefenbacher, Walter"]
[Result "1-0"]
[ECO "A47"]
[PlyCount "79"]
[EventDate "1980.08.19"]
[EventType "team-tourn"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Austria (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "AUT"]

1. d4 Nf6 2. Nf3 b6 3. Bg5 Bb7 4. Nbd2 e6 5. e4 Be7 6. Bxf6 Bxf6 7. Bd3 c5 8. c3 d5 9. e5 Be7 10. 0-0 Nc6 11. Re1 Kf8 12. Nf1 g6 13. Ne3 Kg7 14. Nc2 Rc8 15. Nd2 Bg5 16. g3 h5 17. f4 Be7 18. Nf3 cxd4 19. Ncxd4 Nxd4 20. cxd4 Rc7 21. Qe2 Qd7 22. Rf1 Rhc8 23. h3 Rg8 24. g4 hxg4 25. hxg4 Qc8 26. Rad1 Bc6 27. Kf2 Ba4 28. b3 Bd7 29. Rg1 Kf8 30. Qd2 Bb5 31. Bb1 Ke8 32. f5 gxf5 33. gxf5 Rxg1 34. Rxg1 Kd7 35. Rg7 Qf8 36. Qh6 Rc1 37. fxe6+ Kd8 38. Qh7 Rxb1 39. Rg8 Rf1+ 40. Kg2 1-0

[Event "IBCA blind Olympiad 06th fin-B"]
[Site "Noordwijkerhout"]
[Date "1980.08.19"]
[Round "1.1"]
[White "Dimitrov, D."]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "B01"]
[PlyCount "28"]
[EventDate "1980.08.19"]
[EventType "team-tourn"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Bulgaria (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "BUL"]
[BlackTeamCountry "NED"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Nc6 6. Bb5 Bd7 7. d5 Nb4 8. Bxd7+ Nxd7 9. 0-0 Nf6 10. Bd2 Nbxd5 11. Ne4 Qb6 12. Neg5 h6 13. c4 hxg5 14. cxd5 Nxd5 1/2-1/2

[Event "IBCA blind Olympiad 06th prel-C"]
[Site "Noordwijkerhout"]
[Date "1980.08.18"]
[Round "5.1"]
[White "Platt, Yetzhak"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "D06"]
[PlyCount "87"]
[EventDate "1980.08.13"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Israel (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "ISR"]
[BlackTeamCountry "NED"]

1. d4 d5 2. Nf3 Bf5 3. c4 e6 4. Nc3 Nf6 5. Bg5 Bb4 6. Qa4+ Nc6 7. Ne5 0-0 8. Nxc6 Bxc3+ 9. bxc3 Qd7 10. Bxf6 gxf6 11. Ne7+ Qxe7 12. e3 Kh8 13. Be2 Rg8 14. 0-0 Rg7 15. Rfe1 Bh3 16. g3 c6 17. Rab1 Qc7 18. Bf1 Bf5 19. Rb2 b6 20. Qd1 Rd8 21. Bd3 Bg6 22. Bxg6 fxg6 23. Qb3 Rgd7 24. Rc2 Rc8 25. Rec1 Qd8 26. cxd5 cxd5 27. c4 dxc4 28. Rxc4 Rxc4 29. Qxc4 Qe7 30. e4 Kg7 31. d5 exd5 32. exd5 Qd6 33. Rd1 Rc7 34. Qd3 Rd7 35. h4 h5 36. Qb5 Kf7 37. Rd2 Kg7 38. Re2 Kf7 39. Rd2 Kg7 40. Kh2 Kf7 41. Qd3 Kg7 42. f4 f5 43. Qc3+ Kh7 44. Qd4 1/2-1/2

[Event "IBCA blind Olympiad 06th prel-C"]
[Site "Noordwijkerhout"]
[Date "1980.08.16"]
[Round "4.1"]
[White "Boerefijn, Martinus"]
[Black "Florian, Jaromir"]
[Result "0-1"]
[ECO "C41"]
[PlyCount "111"]
[EventDate "1980.08.13"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Czechoslovakia (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "CSR"]

1. e4 e5 2. Nf3 d6 3. d4 f6 4. Bc4 c6 5. 0-0 Nd7 6. c3 Nb6 7. Bb3 Qc7 8. Be3 g6 9. Nbd2 Nh6 10. a4 a5 11. Nc4 Nd7 12. dxe5 dxe5 13. Bxh6 Bxh6 14. Nd6+ Ke7 15. Nf7 Bg7 16. Nxh8 Bxh8 17. Qd2 Bg7 18. Rad1 Nc5 19. Bc2 Be6 20. Qe3 b6 21. Nd2 h5 22. Ra1 Rh8 23. b4 Nb7 24. Rfb1 Bh6 25. Qe1 c5 26. bxa5 Nxa5 27. Rb2 Bxd2 28. Qxd2 Nc4 29. Qc1 Nxb2 30. Qxb2 Rd8 31. Rd1 Bc4 32. h3 Rxd1+ 33. Bxd1 Qc6 34. Qc2 Qd7 35. f3 Kd8 36. Kh2 Kc7 37. Kg1 h4 38. Kf2 f5 39. exf5 Bd3 40. Qd2 gxf5 41. Ke3 c4 42. Kf2 Qg7 43. Qe3 f4 44. Qd2 Qg3+ 45. Kg1 e4 46. fxe4 Qe3+ 47. Qxe3 fxe3 48. Bh5 Kd6 49. Bg6 Ke5 50. Bf7 Kxe4 51. Bg6+ Kf4 52. Bxd3 cxd3 53. Kf1 Kg3 54. c4 d2 55. Ke2 d1Q+ 56. Kxd1 0-1

[Event "IBCA blind Olympiad 06th prel-C"]
[Site "Noordwijkerhout"]
[Date "1980.08.15"]
[Round "3.1"]
[White "Wuensche, Klaus Peter"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "D06"]
[PlyCount "46"]
[EventDate "1980.08.13"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "German Dem Rep (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "DDR"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Nf3 Nf6 5. Bg5 Bb4 6. Qb3 Nc6 7. a3 dxc4 8. Qxc4 Bxc3+ 9. Qxc3 Be4 10. Rd1 Qd5 11. Qc5 0-0-0 12. Qxd5 Rxd5 13. Bxf6 gxf6 14. e3 Rg8 15. Be2 Rf5 16. Kf1 Rd5 17. Ne1 Rgd8 18. f3 Bg6 19. Bc4 R5d6 20. Ke2 e5 21. d5 e4 22. fxe4 Bxe4 23. Nf3 Bxd5 1/2-1/2

[Event "IBCA blind Olympiad 06th prel-C"]
[Site "Noordwijkerhout"]
[Date "1980.08.14"]
[Round "2.1"]
[White "Boerefijn, Martinus"]
[Black "Keane, Michael"]
[Result "1-0"]
[ECO "C45"]
[PlyCount "63"]
[EventDate "1980.08.13"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Ireland (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "IRL"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. a4 a6 7. Nc3 Qf6 8. Qe2 Nge7 9. Nd5 Nxd5 10. exd5+ Ne7 11. a5 Ba7 12. h4 d6 13. Ra4 h6 14. Rf4 Qe5 15. Re4 Qf6 16. Rf4 Qe5 17. Re4 Qf6 18. Bd2 Bxf2+ 19. Qxf2 Qxf2+ 20. Kxf2 Bf5 21. Re1 Bxc2 22. Nd4 Bh7 23. Rh3 Kd7 24. Bc4 Rhe8 25. Rg3 Ng6 26. Bd3 h5 27. Bf5+ Kd8 28. Bg5+ f6 29. Bxf6+ gxf6 30. Rxe8+ Kxe8 31. Bxg6+ Bxg6 32. Rxg6 1-0

[Event "IBCA blind Olympiad 06th prel-C"]
[Site "Noordwijkerhout"]
[Date "1980.08.13"]
[Round "1.1"]
[White "Boerefijn, Martinus"]
[Black "Fesche, Svein Tore"]
[Result "0-1"]
[ECO "B28"]
[PlyCount "74"]
[EventDate "1980.08.13"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Norway (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NOR"]

1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Bb4 7. Bd2 0-0 8. Bd3 Bxc3 9. Bxc3 d5 10. Qe2 d4 11. Bd2 Nc6 12. Bg5 Qd6 13. 0-0 Bg4 14. f3 Bh5 15. a3 Rac8 16. Qd2 Bg6 17. Nc1 Nd7 18. Ne2 f6 19. Bh4 Nc5 20. Bf2 Ne7 21. Ng3 Nxd3 22. cxd3 Rc6 23. Rac1 Rfc8 24. Ne2 Bf7 25. Rxc6 Rxc6 26. Rc1 Bb3 27. Be1 Ng6 28. g3 Nf8 29. Kf2 Qc7 30. Rxc6 Qxc6 31. Nc1 Bf7 32. Ne2 Ne6 33. Qc1 Nc5 34. Qb1 Nb3 35. Qd1 Qc8 36. Kg2 Be6 37. Kf2 Qc6 0-1

[Event "IBCA blind Wch04"]
[Site "Bruges"]
[Date "1978.09.21"]
[Round "11"]
[White "Boerefijn, Martinus"]
[Black "Schmeisser, Andre"]
[Result "1/2-1/2"]
[ECO "C00"]
[PlyCount "35"]
[EventDate "1978.09.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 c5 5. g3 Nc6 6. Bg2 b5 7. 0-0 Bb7 8. Re1 Be7 9. exd5 exd5 10. Nf1 0-0 11. Ne3 d4 12. Nf5 Nd5 13. Nxe7+ Ncxe7 14. Ng5 Qc7 15. Nf3 Ng6 16. h4 Rae8 17. h5 Ne5 18. Nh2 1/2-1/2

[Event "IBCA blind Wch04"]
[Site "Bruges"]
[Date "1978.09.20"]
[Round "10"]
[White "Carlin, Geoffrey"]
[Black "Boerefijn, Martinus"]
[Result "0-1"]
[ECO "D12"]
[PlyCount "90"]
[EventDate "1978.09.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 Bf5 3. Nf3 e6 4. e3 c6 5. Qb3 Qb6 6. Qxb6 axb6 7. Nc3 Nf6 8. Bd2 Nbd7 9. Nh4 Bg6 10. Nxg6 hxg6 11. f3 Nh5 12. Kf2 Bd6 13. Bd3 Nhf6 14. g3 dxc4 15. Bxc4 b5 16. Bd3 Nb6 17. e4 Be7 18. b3 Ba3 19. Rab1 Bb4 20. Rb2 Ba3 21. Rc2 Be7 22. Kg2 Rd8 23. Be3 Na8 24. Rd1 Nc7 25. Bf1 0-0 26. Bf4 Na6 27. Rcd2 Bb4 28. Rd3 Ra8 29. Bc1 Bxc3 30. Rxc3 Nb4 31. a3 Na2 32. Rcd3 Nxc1 33. Rxc1 Rxa3 34. Rdc3 Rd8 35. Rd1 Ra2+ 36. Kh3 Rb2 37. g4 g5 38. Kg3 Ra8 39. Re3 Ra3 40. Rdd3 Ra1 41. Re2 Rbb1 42. Bg2 Ra3 43. Ree3 Ra2 44. h4 gxh4+ 45. Kxh4 Rxg2 0-1

[Event "IBCA blind Wch04"]
[Site "Bruges"]
[Date "1978.09.19"]
[Round "9"]
[White "Boerefijn, Martinus"]
[Black "Burdio Gracia, Delfin"]
[Result "0-1"]
[ECO "A07"]
[PlyCount "102"]
[EventDate "1978.09.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d3 g6 3. g3 Bg7 4. Bg2 d5 5. Nd2 dxe4 6. dxe4 Nf6 7. Ngf3 0-0 8. 0-0 Qc7 9. Qe2 Nbd7 10. e5 Ng4 11. e6 Nde5 12. Nxe5 Nxe5 13. f4 Bxe6 14. fxe5 Bxe5 15. Kh1 Rad8 16. Nf3 Bg7 17. Re1 Qa5 18. Bd2 Qc5 19. Be3 Qa5 20. c3 Bd5 21. Qf2 b6 22. Nd4 Bxd4 23. cxd4 Rfe8 24. Rf1 h5 25. Bxd5 Qxd5+ 26. Qf3 e5 27. dxe5 Rxe5 28. Kg2 Rxe3 29. Qxd5 Rxd5 30. Rf2 Red3 31. Raf1 Rd2 32. Kh3 Rxf2 33. Rxf2 Kg7 34. Kh4 Rd4+ 35. Kh3 f6 36. Re2 g5 37. Re7+ Kg6 38. Re2 c5 39. Kg2 Kf5 40. Kf3 h4 41. Kg2 hxg3 42. hxg3 Kg4 43. Rc2 f5 44. b3 Rd3 45. Rc4+ f4 46. gxf4 gxf4 47. Rc2 Rg3+ 48. Kf2 Rh3 49. Kg1 f3 50. Rc4+ Kg3 51. Rc2 f2+ 0-1

[Event "IBCA blind Wch04"]
[Site "Bruges"]
[Date "1978.09.18"]
[Round "8"]
[White "Boerefijn, Martinus"]
[Black "Baretic, Dragoljub"]
[Result "0-1"]
[ECO "B72"]
[BlackElo "2305"]
[PlyCount "42"]
[EventDate "1978.09.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 g6 7. Be3 Bg7 8. Qd2 Nc6 9. Bc4 0-0 10. f3 Bd7 11. g4 Qa5 12. Nde2 Ne5 13. Kf2 Nxc4 14. Qc1 Nxe3 15. Qxe3 Bc6 16. h4 Qc5 17. h5 Nd7 18. Rh3 Ne5 19. g5 f5 20. hxg6 hxg6 21. Rh4 Ng4+ 0-1

[Event "IBCA blind Wch04"]
[Site "Bruges"]
[Date "1978.09.17"]
[Round "7"]
[White "Eros, Pal"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "B01"]
[PlyCount "62"]
[EventDate "1978.09.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Nc6 6. Bb5 Bd7 7. 0-0 0-0-0 8. Qe2 Bg4 9. Bxc6 bxc6 10. h3 Bh5 11. g4 Bg6 12. Ne5 Qb6 13. a4 e6 14. Be3 Nd5 15. a5 Qb7 16. a6 Qa8 17. Qc4 Rd6 18. Na4 f6 19. Nd3 Nxe3 20. fxe3 Bxd3 21. cxd3 h5 22. g5 Rd5 23. h4 Kd7 24. e4 Rb5 25. Nc5+ Bxc5 26. dxc5 Ke7 27. Qc3 Rf8 28. Rf2 Qc8 29. Raf1 e5 30. Rf5 Qe6 31. Qc2 Qa2 1/2-1/2

[Event "IBCA blind Wch04"]
[Site "Bruges"]
[Date "1978.09.16"]
[Round "6"]
[White "Boerefijn, Martinus"]
[Black "Rudenskij, Nikolai"]
[Result "0-1"]
[ECO "A42"]
[PlyCount "64"]
[EventDate "1978.09.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. c4 d6 4. Nc3 Nd7 5. Be3 e5 6. d5 Ne7 7. g4 0-0 8. h4 f5 9. gxf5 gxf5 10. exf5 Nxf5 11. Bg5 Nf6 12. Bd3 h6 13. Bxf6 Qxf6 14. Ne4 Qg6 15. Ng3 e4 16. h5 Qf6 17. Nxe4 Qxb2 18. Rb1 Qxa2 19. Ne2 Qa5+ 20. Qd2 Qxd2+ 21. Kxd2 b6 22. Nf4 Nd4 23. Ng6 Rf7 24. Ke3 a5 25. Rhg1 a4 26. Rg2 a3 27. Rbg1 Nf5+ 28. Kd2 a2 29. Nf6+ Rxf6 30. Bxf5 Bxf5 31. Ne7+ Kf8 32. Rxg7 a1Q 0-1

[Event "IBCA blind Wch04"]
[Site "Bruges"]
[Date "1978.09.14"]
[Round "5"]
[White "Tonteri, Ari"]
[Black "Boerefijn, Martinus"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "80"]
[EventDate "1978.09.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Nc6 6. Bb5 Bd7 7. 0-0 0-0-0 8. a3 Nxd4 9. b4 Nxf3+ 10. Qxf3 Qb6 11. Be3 Qe6 12. h3 a6 13. Bxd7+ Qxd7 14. Bf4 e6 15. Ne2 Bd6 16. Bg5 Be7 17. Qb3 Kb8 18. Nc3 Nd5 19. Bxe7 Qxe7 20. Na4 b6 21. c4 Nf4 22. Qf3 Qg5 23. Rfd1 e5 24. Nc3 f5 25. Nd5 Ng6 26. Kh2 Nh4 27. Qg3 Qxg3+ 28. Kxg3 Ng6 29. Rd2 c6 30. Rc1 cxd5 31. cxd5 Rd6 32. Rdc2 Rhd8 33. Rc7 R8d7 34. Rc8+ Kb7 35. Re8 Rc7 36. Rd1 Rc8 37. Re6 Rcd8 38. Rxd6 Rxd6 39. h4 Ne7 40. f4 e4 0-1

[Event "IBCA blind Wch04"]
[Site "Bruges"]
[Date "1978.09.13"]
[Round "4"]
[White "Atanasov, Venko G"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "B01"]
[PlyCount "30"]
[EventDate "1978.09.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Nc6 6. Bb5 Bd7 7. d5 Nb4 8. Bxd7+ Nxd7 9. Nd4 Nxd5 10. Nb3 Nxc3 11. Qxd7+ Kxd7 12. Nxa5 b6 13. Nc4 Ne4 14. Bf4 Nd6 15. 0-0-0 f6 1/2-1/2

[Event "IBCA blind Wch04"]
[Site "Bruges"]
[Date "1978.09.12"]
[Round "3"]
[White "Boerefijn, Martinus"]
[Black "Fesche, Svein Tore"]
[Result "1-0"]
[ECO "B28"]
[PlyCount "71"]
[EventDate "1978.09.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. g3 e6 4. Bg2 d5 5. exd5 exd5 6. 0-0 Nf6 7. d3 Be7 8. Nc3 Nc6 9. h3 0-0 10. Nh2 d4 11. Ne2 Nd5 12. Re1 Re8 13. Nf4 Nxf4 14. Bxf4 Be6 15. Nf3 Qd7 16. Kh2 Bf6 17. a3 Bd5 18. Qd2 h6 19. g4 g5 20. Bg3 Bg7 21. Rxe8+ Rxe8 22. Ne1 f5 23. f4 Bxg2 24. Nxg2 fxg4 25. hxg4 Qxg4 26. Re1 Rf8 27. Re4 Qh5+ 28. Kg1 Qf3 29. Qe1 a5 30. fxg5 hxg5 31. Bd6 Rf5 32. Re8+ Kh7 33. Qe6 Qf1+ 34. Kh2 Rf7 35. Qh3+ Kg6 36. Re6+ 1-0

[Event "IBCA blind Wch04"]
[Site "Bruges"]
[Date "1978.09.11"]
[Round "2"]
[White "Zeitler, Hans"]
[Black "Boerefijn, Martinus"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "39"]
[EventDate "1978.09.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Nc6 6. Bb5 Bd7 7. 0-0 e6 8. d5 exd5 9. Re1+ Ne7 10. Bxd7+ Nxd7 11. Nxd5 c6 12. Nxe7 Bxe7 13. Bf4 Nf6 14. Rxe7+ Kxe7 15. Qd6+ Ke8 16. Re1+ Qxe1+ 17. Nxe1 Rd8 18. Qc5 h6 19. Nd3 Nd5 20. Bd6 1-0

[Event "IBCA blind Wch04"]
[Site "Bruges"]
[Date "1978.09.10"]
[Round "1"]
[White "Boerefijn, Martinus"]
[Black "Vidinha, A."]
[Result "1-0"]
[ECO "A05"]
[PlyCount "57"]
[EventDate "1978.09.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d3 Nc6 4. Nbd2 g6 5. g3 Bg7 6. Bg2 e5 7. 0-0 Nf6 8. Re1 0-0 9. Nf1 Bg4 10. h3 Bxf3 11. Bxf3 Nd4 12. Bg2 Re8 13. Ne3 Qc7 14. c3 Ne6 15. Bd2 Nf8 16. Rc1 b6 17. f4 exf4 18. gxf4 Rad8 19. Qf3 N8d7 20. Ng4 Nxg4 21. hxg4 f6 22. Kf2 Nf8 23. Rh1 Qf7 24. b3 Re7 25. Bf1 Bh8 26. d4 Ne6 27. Bc4 Kf8 28. f5 gxf5 29. gxf5 1-0

[Event "IBCA blind Olympiad 05th"]
[Site "Kuortane"]
[Date "1976.08.19"]
[Round "11.3"]
[White "Garner, Michael"]
[Black "Boerefijn, Martinus"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "97"]
[EventDate "1976.08.08"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "FIN"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "United States blind"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "USA"]
[BlackTeamCountry "NED"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 d6 5. Nf3 dxe5 6. Nxe5 cxd4 7. Qxd4 Nc6 8. Bb5 Qd6 9. Nd2 Bd7 10. Bxc6 Bxc6 11. Ndc4 Qc7 12. Nxc6 bxc6 13. 0-0 e6 14. Qe5 Qxe5 15. Nxe5 Rc8 16. c4 Nf6 17. Be3 c5 18. Rfd1 Be7 19. Rd3 0-0 20. Rad1 Rc7 21. f3 Rfc8 22. Kf2 Rb7 23. R1d2 Rbc7 24. Rb3 Kf8 25. Rb5 Ke8 26. Ke2 h6 27. Rd3 g5 28. g4 Nd7 29. Nxd7 Rxd7 30. Rxd7 Kxd7 31. Rb7+ Rc7 32. Rb8 Rc8 33. Rxc8 Kxc8 34. b4 Kc7 35. bxc5 Kc6 36. Bd4 f6 37. Kd3 a6 38. Ke4 a5 39. a4 e5 40. Bc3 Kxc5 41. Bxa5 Kxc4 42. Kf5 Kd3 43. Ke6 Bc5 44. Kxf6 Ke3 45. Kxe5 Kxf3 46. Kf5 Kg2 47. Bc7 Kh3 48. a5 Kh4 49. Bb6 1-0

[Event "IBCA blind Olympiad 05th"]
[Site "Kuortane"]
[Date "1976.08.18"]
[Round "10.3"]
[White "Boerefijn, Martinus"]
[Black "Dobierzin, Olaf"]
[Result "1/2-1/2"]
[ECO "A04"]
[PlyCount "81"]
[EventDate "1976.08.08"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "FIN"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "German Dem Rep (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "DDR"]

1. e4 c5 2. Nf3 Nc6 3. d3 g6 4. g3 Bg7 5. Bg2 d6 6. 0-0 e6 7. Nbd2 Nge7 8. c3 0-0 9. Ne1 Rb8 10. f4 b5 11. Ndf3 b4 12. Bd2 Qb6 13. Kh1 a5 14. Rc1 Ba6 15. Nh4 f5 16. exf5 Nxf5 17. Nxf5 exf5 18. g4 fxg4 19. Qxg4 Bc8 20. Qh4 Bf6 21. Qf2 Ne7 22. Nf3 Bb7 23. Rg1 Nf5 24. Rce1 Bc6 25. Re6 Bd5 26. Re2 Bxa2 27. Bh3 Bg7 28. c4 d5 29. Nh4 Bd4 30. Be3 Bxe3 31. Rxe3 Nxe3 32. Qxe3 Rbe8 33. Qc1 Qf6 34. Rg4 Re2 35. f5 Qe7 36. Bf1 Re1 37. Qf4 Qe2 38. Rg1 Qh5 39. Qf2 Rb1 40. Qg2 Qxh4 41. fxg6 1/2-1/2

[Event "IBCA blind Olympiad 05th"]
[Site "Kuortane"]
[Date "1976.08.17"]
[Round "9.3"]
[White "Fritz, Bertil"]
[Black "Boerefijn, Martinus"]
[Result "0-1"]
[ECO "B43"]
[PlyCount "46"]
[EventDate "1976.08.08"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "FIN"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Sweden (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Be2 Nf6 6. Nc3 Qc7 7. 0-0 Bb4 8. Qd3 Nc6 9. Nxc6 bxc6 10. Be3 Bxc3 11. bxc3 d5 12. Bf3 0-0 13. Rfd1 Bb7 14. Bc5 Rfe8 15. Qe3 Nd7 16. g3 a5 17. c4 a4 18. Ba3 c5 19. exd5 exd5 20. Qd2 d4 21. Bxb7 Qxb7 22. Re1 Ne5 23. Qe2 Nf3+ 0-1

[Event "IBCA blind Olympiad 05th"]
[Site "Kuortane"]
[Date "1976.08.15"]
[Round "7.3"]
[White "Boerefijn, Martinus"]
[Black "Sereda, Josef"]
[Result "1/2-1/2"]
[ECO "C54"]
[PlyCount "39"]
[EventDate "1976.08.08"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "FIN"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Czechoslovakia (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "CSR"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Bg5 h6 6. Bh4 d6 7. c3 0-0 8. 0-0 Qe7 9. Nbd2 Be6 10. b4 Bb6 11. a4 a6 12. Re1 Rae8 13. Nf1 Bxc4 14. dxc4 Qe6 15. Qd3 Ne7 16. Ne3 Ng6 17. Bg3 Nh5 18. Nd5 Nhf4 19. Qd2 Rc8 20. Rad1 1/2-1/2

[Event "IBCA blind Olympiad 05th"]
[Site "Kuortane"]
[Date "1976.08.13"]
[Round "6.3"]
[White "Studer, Werner"]
[Black "Boerefijn, Martinus"]
[Result "0-1"]
[ECO "B43"]
[PlyCount "76"]
[EventDate "1976.08.08"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "FIN"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Switzerland (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "SUI"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd2 Nc6 7. Nf3 Nf6 8. a3 Be7 9. g3 0-0 10. Bg2 d6 11. 0-0 Bd7 12. Re1 Rac8 13. Qe2 b5 14. b4 Rfd8 15. Rac1 Ne8 16. Qe3 Bf6 17. Ne2 g6 18. Bc3 e5 19. Bd2 Be6 20. Ng5 Bc4 21. Kh1 Qe7 22. c3 Nc7 23. Ng1 d5 24. N1f3 Ne6 25. exd5 Bxd5 26. Nh3 Ng7 27. Qe2 Nf5 28. Bg5 e4 29. Bxf6 Qxf6 30. Nd2 e3 31. fxe3 Bxg2+ 32. Qxg2 Ne5 33. Ne4 Qb6 34. Nc5 Nd3 35. Nxd3 Rxd3 36. e4 Nh6 37. Qf2 Qd6 38. Qg1 Ng4 0-1

[Event "IBCA blind Olympiad 05th"]
[Site "Kuortane"]
[Date "1976.08.12"]
[Round "5.3"]
[White "Boerefijn, Martinus"]
[Black "Larsen, Ejner"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "69"]
[EventDate "1976.08.08"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "FIN"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Denmark (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "DEN"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. c3 d6 6. cxd4 Nf6 7. Nc3 Bg4 8. Be3 0-0 9. h3 Bh5 10. g4 Bg6 11. Nd2 Kh8 12. f4 Bxe4 13. Ndxe4 Nxe4 14. Nxe4 d5 15. Bb3 dxe4 16. g5 f5 17. h4 Na5 18. h5 Nxb3 19. Qxb3 b6 20. 0-0-0 a5 21. h6 a4 22. hxg7+ Kxg7 23. Qc2 Qd5 24. Kb1 Rh8 25. Qxc7 Kf7 26. Rh6 Ke8 27. Rdh1 Qb5 28. Qc6+ Qxc6 29. Rxc6 b5 30. Rch6 Kd7 31. Rxh7 Rxh7 32. Rxh7 Rg8 33. Kc1 b4 34. Bd2 Ke6 35. d5+ 1-0

[Event "IBCA blind Olympiad 05th"]
[Site "Kuortane"]
[Date "1976.08.11"]
[Round "4.2"]
[White "Hansroul, Jacques"]
[Black "Boerefijn, Martinus"]
[Result "0-1"]
[ECO "B23"]
[PlyCount "80"]
[EventDate "1976.08.08"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "FIN"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Belgium (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nc3 e6 3. g3 d5 4. Bg2 d4 5. Nce2 e5 6. d3 Nc6 7. Nf3 Nf6 8. 0-0 g6 9. a4 Bg7 10. Nd2 0-0 11. Nc4 Ne8 12. f4 Nd6 13. Nxd6 Qxd6 14. h3 f5 15. fxe5 Bxe5 16. Bf4 fxe4 17. Bxe5 Nxe5 18. Rxf8+ Qxf8 19. Bxe4 Bxh3 20. Bxb7 Rb8 21. Bd5+ Kh8 22. Nf4 Bg4 23. Qe1 Re8 24. Qf2 g5 25. Ng2 Nf3+ 26. Bxf3 Bxf3 27. Re1 Rb8 28. b3 Rb6 29. Re5 Qf6 30. Qe1 Bh5 31. Rxc5 Re6 32. Qf2 Bf3 33. Rc8+ Kg7 34. Rc7+ Kg8 35. Nf4 Re3 36. Nd5 Qh6 37. Rc8+ Kf7 38. Rc7+ Ke8 39. Re7+ Kd8 40. Qd2 Bh1 0-1

[Event "IBCA blind Olympiad 05th"]
[Site "Kuortane"]
[Date "1976.08.10"]
[Round "3.3"]
[White "Misiejuk, Zdzislaw"]
[Black "Boerefijn, Martinus"]
[Result "1-0"]
[ECO "B41"]
[PlyCount "139"]
[EventDate "1976.08.08"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "FIN"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Poland (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Qc7 8. 0-0 Nc6 9. Be3 Ne5 10. h3 Bxc3 11. bxc3 Nxc4 12. Bg5 Nb2 13. Qd2 Nxd3 14. Qxd3 Qe5 15. Bxf6 Qxf6 16. f4 Qe7 17. f5 Qc5 18. Kh1 e5 19. Nb3 Qc7 20. Qg3 Kf8 21. Rad1 f6 22. Rd5 Kf7 23. Rfd1 b6 24. Nd4 Ra7 25. Ne2 a5 26. Qg4 Ba6 27. Ng3 Bc4 28. Rd6 Qd8 29. R1d2 b5 30. Nh5 Rg8 31. Qh4 b4 32. cxb4 axb4 33. Qf2 Rc7 34. Qb6 Re8 35. Qxb4 Re7 36. a4 Qa8 37. Ng3 Qa7 38. a5 Qe3 39. Kh2 h5 40. Qb6 Qxb6 41. axb6 Rb7 42. Nxh5 Bb5 43. Rb2 Bc6 44. Rb4 Re8 45. Rd2 Ra8 46. Ng3 Ra6 47. Rdb2 d5 48. exd5 Bxd5 49. h4 Bc6 50. Nh5 g6 51. fxg6+ Kxg6 52. Ng3 Bd5 53. Ne2 Kh5 54. Nc1 Kg6 55. Nd3 Ra5 56. Rb5 Rxb5 57. Rxb5 Bc6 58. Nc5 Rb8 59. Rb4 f5 60. b7 Kh5 61. g3 e4 62. Rb6 Bd5 63. Nd7 Rxb7 64. Nf6+ Kg6 65. Nxd5+ Rxb6 66. Nxb6 Kf6 67. Nd5+ Ke5 68. Nf4 e3 69. h5 Kf6 70. Kg2 1-0

[Event "IBCA blind Olympiad 05th"]
[Site "Kuortane"]
[Date "1976.08.09"]
[Round "2.2"]
[White "Legueltel, Daniel"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "D06"]
[PlyCount "41"]
[EventDate "1976.08.08"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "FIN"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "France (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "FRA"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Nf3 Nf6 5. e3 Nc6 6. a3 a6 7. Bd3 Bg6 8. 0-0 dxc4 9. Bxc4 Bd6 10. d5 exd5 11. Nxd5 Ne4 12. b4 Ne5 13. Be2 c6 14. Nf4 Nxf3+ 15. Bxf3 Be5 16. Ra2 Qxd1 17. Bxd1 Rd8 18. Bf3 Ng5 19. Be2 Ne4 20. Bf3 Ng5 21. Be2 1/2-1/2

[Event "IBCA blind Olympiad 05th"]
[Site "Kuortane"]
[Date "1976.08.08"]
[Round "1.3"]
[White "Boerefijn, Martinus"]
[Black "Irimia, Mihai"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "52"]
[EventDate "1976.08.08"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "FIN"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Romania (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ROU"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. f4 Qb6 6. Nf3 Bd7 7. Be2 Nge7 8. Na3 cxd4 9. cxd4 Nf5 10. Nc2 Be7 11. b3 Rc8 12. g4 Nb4 13. Na3 Nh4 14. 0-0 Nxf3+ 15. Rxf3 g6 16. Kh1 a6 17. Bb2 0-0 18. g5 Kg7 19. Rh3 Rh8 20. Bc3 h6 21. gxh6+ Rxh6 22. Rxh6 Kxh6 23. Bxb4 Qxb4 24. Nc2 Qc3 25. Ne1 Kg7 26. Qd3 Qxa1 0-1

[Event "IBCA blind Olympiad 04th fin-B"]
[Site "Pula"]
[Date "1972.04.18"]
[Round "7.3"]
[White "Sand, Peter"]
[Black "Boerefijn, Martinus"]
[Result "1-0"]
[ECO "B43"]
[PlyCount "71"]
[EventDate "1972.04.12"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "YUG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "German Fed Rep (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 Qc7 6. Bd3 b5 7. 0-0 Nf6 8. Qe2 d6 9. Bg5 Be7 10. Kh1 0-0 11. f4 Nbd7 12. Rad1 Bb7 13. Nf3 Nc5 14. e5 dxe5 15. fxe5 Nd5 16. Ne4 Nxd3 17. Rxd3 Nb4 18. Rc3 Qd8 19. Rd1 Qe8 20. Rc7 Bxg5 21. Nfxg5 Bd5 22. Qh5 Bxe4 23. Nxe4 h6 24. Rdd7 Rc8 25. Nd6 Rxc7 26. Rxc7 Qd8 27. Rxf7 Nxc2 28. Qg6 Rxf7 29. Qxf7+ Kh8 30. Qxe6 Qc7 31. h3 Nd4 32. Qg4 Qc1+ 33. Kh2 Qxb2 34. e6 Nc2 35. Nf7+ Kh7 36. Qe4+ 1-0

[Event "IBCA blind Olympiad 04th fin-B"]
[Site "Pula"]
[Date "1972.04.17"]
[Round "6.2"]
[White "Hammermayer, Franz"]
[Black "Boerefijn, Martinus"]
[Result "1-0"]
[ECO "B41"]
[PlyCount "115"]
[EventDate "1972.04.12"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "YUG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Austria (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "AUT"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Qc7 6. Nc3 Nf6 7. Nc2 d6 8. Be3 Be7 9. Be2 b6 10. f4 Bb7 11. Qd3 Nbd7 12. b4 Rc8 13. f5 exf5 14. Nd5 Bxd5 15. exd5 Ne5 16. Qxf5 Nxc4 17. 0-0 0-0 18. Qh3 Ne5 19. Nd4 b5 20. Rac1 Qd8 21. Nc6 Nxc6 22. dxc6 d5 23. Bd4 Ne4 24. Bg4 Rc7 25. Bb6 Bxb4 26. Bf5 Ng5 27. Qg3 Bd6 28. Bxc7 Bxc7 29. Qd3 Qd6 30. g3 g6 31. Bg4 h5 32. Bf3 h4 33. Qxd5 Nxf3+ 34. Qxf3 g5 35. Rc2 Qg6 36. Qf5 Qh6 37. gxh4 Qxh4 38. Rg2 f6 39. Qg6+ Kh8 40. Kh1 Bf4 41. Qf5 Rf7 42. Rff2 Rf8 43. Rf1 Qh7 44. Qxh7+ Kxh7 45. h4 Rc8 46. hxg5 fxg5 47. Rc2 b4 48. Rd1 Kg6 49. Rd7 Kf6 50. Kg2 Rc7 51. Rxc7 Bxc7 52. Rd2 Ke6 53. Kf3 a5 54. Rd7 Bf4 55. Ke4 a4 56. Rb7 Bd6 57. Rg7 Kf6 58. c7 1-0

[Event "IBCA blind Olympiad 04th fin-B"]
[Site "Pula"]
[Date "1972.04.16"]
[Round "5.3"]
[White "Kusnierz, Ryszard"]
[Black "Boerefijn, Martinus"]
[Result "0-1"]
[ECO "B41"]
[PlyCount "52"]
[EventDate "1972.04.12"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "YUG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Poland (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Qc7 6. Nc3 Nf6 7. Be3 Bb4 8. Rc1 Nxe4 9. Qg4 Nxc3 10. bxc3 Bf8 11. Bd3 Nc6 12. 0-0 d6 13. Qg3 Bd7 14. Rb1 Ne5 15. Be4 Bc6 16. Nxc6 bxc6 17. Bd4 f6 18. Rb6 d5 19. cxd5 exd5 20. Bf5 Bd6 21. Qh3 c5 22. Rfb1 cxd4 23. Rb7 Qxc3 24. Bg6+ Kd8 25. Qe6 Qc6 26. R1b6 Qc1# 0-1

[Event "IBCA blind Olympiad 04th fin-B"]
[Site "Pula"]
[Date "1972.04.15"]
[Round "4.3"]
[White "Boerefijn, Martinus"]
[Black "McElroy, Ernest"]
[Result "1-0"]
[ECO "B84"]
[PlyCount "93"]
[EventDate "1972.04.12"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "YUG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Ireland (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "IRL"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. Be3 Be7 8. Qd2 Qc7 9. a3 b5 10. f3 Nbd7 11. Nd1 Bb7 12. Nf2 Nb6 13. 0-0 0-0 14. Kh1 d5 15. e5 Nfd7 16. f4 Nc4 17. Qc1 Bc5 18. c3 Rac8 19. Nd1 Ndb6 20. Bg1 Bxd4 21. Bxd4 Na5 22. Qe3 Nd7 23. Bd3 Nb3 24. Rb1 Nxd4 25. cxd4 f5 26. Nf2 Qd8 27. Nh3 Qe7 28. Ng5 h6 29. Nf3 Rc7 30. Nd2 Rfc8 31. Nb3 Ba8 32. Qd2 Rc6 33. Qe2 Qd8 34. Qh5 Qe8 35. Qh3 Qd8 36. g4 fxg4 37. Qxg4 Qe7 38. Rf3 Kh8 39. Rg1 Rf8 40. Qg6 Rf5 41. Bxf5 exf5 42. Qxf5 Nf8 43. Nc5 Ne6 44. Nxe6 Rxe6 45. Rfg3 Rc6 46. Qg4 Rc7 47. f5 1-0

[Event "IBCA blind Olympiad 04th fin-B"]
[Site "Pula"]
[Date "1972.04.14"]
[Round "3.3"]
[White "Bassa, N."]
[Black "Boerefijn, Martinus"]
[Result "0-1"]
[ECO "B48"]
[PlyCount "82"]
[EventDate "1972.04.12"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "YUG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Israel (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "ISR"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Nc6 6. a3 Qc7 7. Be3 Nf6 8. Be2 d6 9. 0-0 Be7 10. f4 Bd7 11. Qd2 Rc8 12. Rad1 0-0 13. Bd3 Ng4 14. Kh1 Nxe3 15. Qxe3 Rfd8 16. Rf3 Bf6 17. Nde2 b5 18. Rdf1 b4 19. Nd1 a5 20. g4 Rf8 21. g5 Be7 22. Qg1 Qd8 23. Rg3 Qe8 24. Nf2 Rb8 25. Ng4 Kh8 26. Rh3 e5 27. Rhf3 exf4 28. Nxf4 Bxg5 29. Nd5 Bxg4 30. Qxg4 Bh6 31. Qg2 Ne5 32. Rh3 Nxd3 33. cxd3 bxa3 34. bxa3 Qe5 35. Rhf3 f6 36. Rf5 Qb2 37. Qxb2 Rxb2 38. R5f3 Re8 39. Nc7 Rc8 40. Nd5 Rcc2 41. h3 Rh2+ 0-1

[Event "IBCA blind Olympiad 04th fin-B"]
[Site "Pula"]
[Date "1972.04.13"]
[Round "2.2"]
[White "Pokorny, Jiri"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "B23"]
[PlyCount "97"]
[EventDate "1972.04.12"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "YUG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Czechoslovakia (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "CSR"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nc3 Nc6 3. Bc4 g6 4. f4 d6 5. d3 Bg7 6. a3 Nf6 7. h3 a6 8. Nf3 Qc7 9. g4 Bd7 10. Be3 e6 11. Qd2 h5 12. g5 Ng8 13. Nd1 Nge7 14. c3 b5 15. Ba2 Qb7 16. 0-0 Rc8 17. Rc1 Nd8 18. Nf2 0-0 19. d4 c4 20. Bb1 Bc6 21. Qe2 Qd7 22. Nh4 Bb7 23. Nh1 d5 24. Ng3 dxe4 25. Bxe4 Bxe4 26. Nxe4 Nf5 27. Bd2 Nb7 28. Nf3 Qc7 29. Ne5 Kh7 30. Ng3 Nbd6 31. Nxh5 gxh5 32. Qxh5+ Kg8 33. Rf2 Ne4 34. Rg2 Nxd2 35. Ng4 Qxf4 36. Kh1 Ne4 37. Rcg1 Ne3 38. g6 fxg6 39. Qxg6 Nxg4 40. Qxe6+ Qf7 41. Qxg4 Nf6 42. Qxg7+ Qxg7 43. Rxg7+ Kh8 44. R7g6 Rc7 45. Rf1 Rcf7 46. Rf4 Kh7 47. Rg2 Nh5 48. Rh4 Kh6 49. Re4 1/2-1/2

[Event "IBCA blind Olympiad 04th fin-B"]
[Site "Pula"]
[Date "1972.04.12"]
[Round "1.3"]
[White "Boerefijn, Martinus"]
[Black "Atanasov, Venko G"]
[Result "1/2-1/2"]
[ECO "E78"]
[PlyCount "84"]
[EventDate "1972.04.12"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "YUG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Bulgaria (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "BUL"]

1. e4 g6 2. d4 Bg7 3. c4 d6 4. Nc3 Nf6 5. Be2 0-0 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Qa5 9. Nb3 Qd8 10. Be3 b6 11. Bf3 e5 12. Nb5 Ne8 13. Qd5 Nc7 14. Nxc7 Qxc7 15. Qxa8 Nc6 16. f5 Bb7 17. Qxf8+ Kxf8 18. fxg6 hxg6 19. a3 Nd4 20. Bxd4 exd4 21. Nd2 Qe7 22. 0-0 Qg5 23. Rfd1 Be5 24. g3 Qe3+ 25. Kg2 Bc8 26. a4 a5 27. Ra3 Qg5 28. Rd3 Qh6 29. Kg1 Bd7 30. b3 Qg5 31. Bg2 Kg7 32. Nf3 Qe7 33. Nxd4 f6 34. Nf3 Bg4 35. R1d2 Bxf3 36. Bxf3 Qc7 37. Rd1 Kh6 38. Bg2 Qc5+ 39. Kh1 Qf2 40. Rf1 Qc5 41. Rdf3 Kg7 42. Rd3 Qa3 1/2-1/2

[Event "IBCA blind Olympiad 04th prel-C"]
[Site "Pula"]
[Date "1972.04.09"]
[Round "4.3"]
[White "Nemes, Gyorgy"]
[Black "Boerefijn, Martinus"]
[Result "1/2-1/2"]
[ECO "B09"]
[PlyCount "70"]
[EventDate "1972.04.06"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "YUG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Hungary (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "NED"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c6 6. Bd3 0-0 7. 0-0 Nbd7 8. e5 dxe5 9. fxe5 Nd5 10. Nxd5 cxd5 11. Be3 Nb8 12. Qd2 Nc6 13. Rf2 Bg4 14. Raf1 Qb6 15. c3 Nd8 16. Kh1 f6 17. Bh6 Bd7 18. exf6 exf6 19. Ne5 Be8 20. Ng4 f5 21. Bxg7 Kxg7 22. Qh6+ Kg8 23. Ne5 Nf7 24. Nxf7 Rxf7 25. Qg5 Kh8 26. g4 Bd7 27. gxf5 gxf5 28. Bxf5 Rg8 29. Qd2 Bxf5 30. Rxf5 Rxf5 31. Rxf5 Qg6 32. Qf2 Qg4 33. Rf3 Qe4 34. h3 Rf8 35. Kg2 h5 1/2-1/2

[Event "IBCA blind Olympiad 04th prel-C"]
[Site "Pula"]
[Date "1972.04.08"]
[Round "3.3"]
[White "Boerefijn, Martinus"]
[Black "Studer, Werner"]
[Result "1-0"]
[ECO "D30"]
[PlyCount "51"]
[EventDate "1972.04.06"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "YUG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Switzerland (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "SUI"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. e3 c5 5. cxd5 exd5 6. Bd3 Bg4 7. Qa4+ Nbd7 8. Nbd2 a6 9. dxc5 Bxc5 10. b4 b5 11. Qb3 Bd6 12. Bb2 0-0 13. h3 Be6 14. Nd4 Re8 15. N2f3 Ne4 16. a3 Ne5 17. Rd1 Nxf3+ 18. gxf3 Nf6 19. Rg1 Bxh3 20. Nc6 Qd7 21. Bxf6 Bf5 22. Bxf5 Qxf5 23. Rxg7+ Kf8 24. Ba1 Qh5 25. Qxd5 Qh1+ 26. Kd2 1-0

[Event "IBCA blind Olympiad 04th prel-C"]
[Site "Pula"]
[Date "1972.04.07"]
[Round "2.3"]
[White "Irimia, Mihai"]
[Black "Boerefijn, Martinus"]
[Result "1-0"]
[ECO "E81"]
[PlyCount "60"]
[EventDate "1972.04.06"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "YUG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Romania (blind)"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "NED"]

1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. Be3 0-0 6. f3 Nbd7 7. Qd2 c5 8. d5 a6 9. g4 Qa5 10. Be2 Ne8 11. Nh3 Rb8 12. Bh6 Ndf6 13. Bxg7 Kxg7 14. Nf2 Bd7 15. 0-0 b5 16. b3 Qc7 17. f4 Qc8 18. f5 b4 19. Ncd1 Rh8 20. Qf4 h6 21. h4 Nh7 22. Nd3 g5 23. hxg5 hxg5 24. Qg3 f6 25. Ne3 Nc7 26. Kg2 Qg8 27. e5 Ne8 28. exd6 exd6 29. Nxc5 Rd8 30. Ne6+ Bxe6 1-0

[Event "IBCA blind Olympiad 04th prel-C"]
[Site "Pula"]
[Date "1972.04.06"]
[Round "1.3"]
[White "Boerefijn, Martinus"]
[Black "Kusnierz, Ryszard"]
[Result "1/2-1/2"]
[ECO "D12"]
[PlyCount "68"]
[EventDate "1972.04.06"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "YUG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Poland (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "POL"]

1. Nf3 d5 2. c4 e6 3. cxd5 exd5 4. d4 Nf6 5. Nc3 c6 6. e3 Bf5 7. Be2 Bd6 8. Nh4 Be6 9. Qc2 Qc7 10. Nf3 Bg4 11. h3 Bh5 12. Nh4 Bxe2 13. Qxe2 0-0 14. Bd2 g6 15. Rc1 Qe7 16. Nf3 Ne4 17. 0-0 Nd7 18. a3 f5 19. Na2 Nxd2 20. Nxd2 Nf6 21. Rfe1 Rfe8 22. Qd3 Ne4 23. Nc3 Qh4 24. Ncxe4 fxe4 25. Qe2 Re7 26. Qg4 Qf6 27. f4 exf3 28. Qxf3 Qxf3 29. gxf3 Rae8 30. Nf1 Bc7 31. Kf2 Rf8 32. Nd2 Rf5 33. b4 Rh5 34. Rh1 Rf7 1/2-1/2

[Event "IBCA blind Olympiad 03rd"]
[Site "Weymouth"]
[Date "1968.04.10"]
[Round "11.1"]
[White "Boerefijn, Martinus"]
[Black "Kristensen, Alfred"]
[Result "0-1"]
[ECO "C55"]
[PlyCount "58"]
[EventDate "1968.03.29"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands (blind)"]
[BlackTeam "Denmark (blind)"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "DEN"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Nxe4 5. Nxe4 d5 6. Bxd5 Qxd5 7. d3 Bg4 8. h3 Bh5 9. g4 Bg6 10. Qe2 0-0-0 11. a3 Nd4 12. Nxd4 exd4 13. Bf4 Be7 14. 0-0-0 Rhe8 15. f3 Qa2 16. Qh2 Rd7 17. Nd2 f6 18. Nb1 Bf7 19. Rhe1 Qa1 20. c3 Bb3 21. c4 Bxd1 22. Rxd1 Bd6 23. Kc2 Qa2 24. Bxd6 Rxd6 25. f4 Rb6 26. Kc1 Qb3 27. Qc2 Qxc2+ 28. Kxc2 Re2+ 29. Rd2 Rbe6 0-1

[Event "IBCA blind Olympiad 03rd"]
[Site "Weymouth"]
[Date "1968.04.09"]
[Round "10.1"]
[White "Sandrin, Albert"]
[Black "Boerefijn, Martinus"]
[Result "1-0"]
[ECO "E65"]
[PlyCount "87"]
[EventDate "1968.03.29"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "United States blind"]
[BlackTeam "Netherlands (blind)"]
[WhiteTeamCountry "USA"]
[BlackTeamCountry "NED"]

1. c4 c5 2. Nf3 g6 3. g3 Bg7 4. Bg2 Nf6 5. 0-0 0-0 6. d4 cxd4 7. Nxd4 d6 8. Nc3 Qc7 9. b3 Bd7 10. Nd5 Nxd5 11. cxd5 Qc3 12. Be3 Qc8 13. Rc1 Qd8 14. b4 Na6 15. a3 Nc7 16. Qd3 a6 17. Nb3 Ne8 18. Na5 Bc8 19. Nc4 b5 20. Nb6 Bf5 21. Qb3 Rb8 22. Rc6 Nc7 23. a4 Na8 24. a5 Rb7 25. Rfc1 Qc8 26. Nxa8 Qxa8 27. Bb6 Re8 28. e4 Bc8 29. Qe3 Kh8 30. h4 h5 31. Kh2 Kh7 32. Bh3 Bxh3 33. Kxh3 Bf6 34. f3 Rh8 35. f4 Bg7 36. R1c2 Re8 37. e5 dxe5 38. fxe5 Kg8 39. Qe4 Kh8 40. Bd4 Kg8 41. g4 hxg4+ 42. Qxg4 Rf8 43. e6 Bxd4 44. exf7+ 1-0

