[Event "Leiden op-A 10th"]
[Site "Leiden"]
[Date "2016.07.17"]
[Round "3"]
[White "Piket, Joop J"]
[Black "Schmidt Schaeffer, Sebastian"]
[Result "0-1"]
[ECO "A95"]
[WhiteElo "2116"]
[BlackElo "2384"]
[PlyCount "52"]
[EventDate "2016.07.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 173 Extra"]
[Source "ChessBase"]
[SourceDate "2016.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2016.08.29"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. c4 d5 6. Nc3 0-0 7. Ne5 c6 8. 0-0 Nbd7 9. Nxd7 Bxd7 10. Qb3 b5 11. cxb5 cxb5 12. a3 Qb6 13. Rd1 h6 14. e3 a5 15. Bd2 b4 16. axb4 axb4 17. Rxa8 Rxa8 18. Nxd5 Nxd5 19. Bxd5 Ra5 20. Bf3 Ba4 21. Qd3 Bxd1 22. Bxd1 Ra1 23. Be1 Qc6 24. Kf1 Qc1 25. Ke2 Qxb2+ 26. Kf3 Qb1 0-1

[Event "Leiden op-A 10th"]
[Site "Leiden"]
[Date "2016.07.15"]
[Round "1"]
[White "Piket, Joop J"]
[Black "Pavlovic, Milos"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2116"]
[BlackElo "2475"]
[PlyCount "92"]
[EventDate "2016.07.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 173 Extra"]
[Source "ChessBase"]
[SourceDate "2016.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2016.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 e6 3. e4 h6 4. Bxf6 Qxf6 5. Nf3 d6 6. c3 Nd7 7. Nbd2 Qd8 8. Bd3 Be7 9. Qe2 c5 10. 0-0 0-0 11. a4 Qc7 12. b4 b6 13. Ba6 Nf6 14. Bxc8 Rfxc8 15. bxc5 bxc5 16. Qa6 Rab8 17. Rab1 d5 18. Ne5 cxd4 19. Rxb8 Rxb8 20. cxd4 dxe4 21. Nc6 Rb6 22. Qc8+ Qxc8 23. Nxe7+ Kf8 24. Nxc8 Rb4 25. Nd6 Rxd4 26. N6c4 Nd5 27. Rc1 Ke7 28. Nb3 Rd3 29. Nc5 Rc3 30. Rxc3 Nxc3 31. Kf1 f5 32. Ke1 Nd5 33. Kd2 g5 34. Nb3 Kf6 35. Nd4 Ne7 36. a5 e5 37. Nb5 Nc6 38. g4 fxg4 39. Ke3 Kf5 40. Nc7 h5 41. a6 g3 42. fxg3 Kg4 43. Ne6 Nb4 44. Nxe5+ Kf5 45. Nxg5 Kxe5 46. Nxe4 Nxa6 1/2-1/2

[Event "Vlissingen HZ op 12th"]
[Site "Vlissingen"]
[Date "2008.08.09"]
[Round "9"]
[White "Piket, Joop J"]
[Black "Bodicker, Rob"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2186"]
[BlackElo "2066"]
[PlyCount "5"]
[EventDate "2008.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. Bxf6 1/2-1/2

[Event "Vlissingen HZ op 12th"]
[Site "Vlissingen"]
[Date "2008.08.08"]
[Round "8"]
[White "De Jong, Migchiel"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "B08"]
[WhiteElo "2324"]
[BlackElo "2186"]
[PlyCount "49"]
[EventDate "2008.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 c6 6. 0-0 0-0 7. Re1 Qc7 8. Bf4 Nh5 9. Bg5 e5 10. Qd2 a6 11. a4 Bg4 12. Be3 f5 13. exf5 gxf5 14. dxe5 dxe5 15. Bc4+ Kh8 16. Ng5 Qe7 17. Ne6 f4 18. Bc5 Qd7 19. Qxd7 Nxd7 20. Bxf8 Bxe6 21. Bxg7+ Nxg7 22. Rad1 Bf5 23. Ne4 Ne8 24. Ng5 Ng7 25. Be6 1-0

[Event "Vlissingen HZ op 12th"]
[Site "Vlissingen"]
[Date "2008.08.07"]
[Round "7"]
[White "Piket, Joop J"]
[Black "Bezemer, Arno J"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2186"]
[BlackElo "2324"]
[PlyCount "51"]
[EventDate "2008.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. h4 d5 4. Nd2 c5 5. Nxe4 dxe4 6. dxc5 Qa5+ 7. c3 Qxc5 8. Qa4+ Qc6 9. Qxc6+ Nxc6 10. 0-0-0 e5 11. f3 Be6 12. Kb1 Bc5 13. fxe4 f6 14. Bc1 0-0 15. e3 a6 16. Be2 b5 17. Nf3 Rab8 18. b4 Be7 19. a3 Na7 20. h5 Nc8 21. Nh4 Nd6 22. Bd3 Rfc8 23. Bb2 Bg4 24. Rd2 Rd8 25. Kc2 Bxh5 26. Nf5 1/2-1/2

[Event "Vlissingen HZ op 12th"]
[Site "Vlissingen"]
[Date "2008.08.06"]
[Round "6"]
[White "Van Westerop, Sebastiaan"]
[Black "Piket, Joop J"]
[Result "0-1"]
[ECO "A16"]
[WhiteElo "1952"]
[BlackElo "2186"]
[PlyCount "52"]
[EventDate "2008.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. Nf3 g6 2. c4 Bg7 3. Nc3 Nf6 4. e3 d6 5. Be2 e5 6. d3 0-0 7. a3 a5 8. Rb1 Nbd7 9. e4 Nc5 10. Be3 Ng4 11. Bg5 f6 12. Bh4 a4 13. Nd2 h5 14. h3 Nh6 15. f3 Bd7 16. Bf2 f5 17. Bxc5 dxc5 18. 0-0 f4 19. Qe1 Bf6 20. Qf2 b6 21. Kh1 Bh4 22. Qg1 Bg3 23. Rfd1 Qh4 24. Bf1 g5 25. Nd5 g4 26. Ne7+ Qxe7 0-1

[Event "Vlissingen HZ op 12th"]
[Site "Vlissingen"]
[Date "2008.08.05"]
[Round "5"]
[White "Piket, Joop J"]
[Black "Lukas, Manfred"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2186"]
[BlackElo "2059"]
[PlyCount "57"]
[EventDate "2008.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 c5 3. d5 Qb6 4. Nc3 Qxb2 5. Bd2 Qb6 6. e4 d6 7. f4 Qd8 8. Bc4 Nbd7 9. a4 Nb6 10. Bb5+ Bd7 11. Be2 e6 12. a5 Nc8 13. dxe6 Bxe6 14. Nf3 h6 15. f5 Bd7 16. Bc4 Be7 17. 0-0 b5 18. Nxb5 Nxe4 19. Bxh6 0-0 20. Qd5 Rb8 21. Qxe4 Bxb5 22. Bxg7 Kxg7 23. Qg4+ Kh8 24. Nd4 cxd4 25. Ra3 Bg5 26. Rh3+ Kg7 27. f6+ Qxf6 28. Rxf6 Kxf6 29. Rf3+ 1-0

[Event "Vlissingen HZ op 12th"]
[Site "Vlissingen"]
[Date "2008.08.04"]
[Round "4"]
[White "Verhoef, Harry"]
[Black "Piket, Joop J"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "1940"]
[BlackElo "2186"]
[PlyCount "104"]
[EventDate "2008.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. h3 Bg7 5. Nf3 0-0 6. Be3 c6 7. a4 Qa5 8. Bd3 e5 9. dxe5 dxe5 10. 0-0 h6 11. Qe2 Nh5 12. Qd2 Kh7 13. Rfb1 Be6 14. b4 Qc7 15. a5 Nd7 16. a6 b5 17. Qe1 Nf4 18. Bf1 Nb6 19. Nd2 Rad8 20. Kh2 Rd4 21. g3 Nh5 22. Nd1 Rd7 23. Nb2 f5 24. Bc5 Rff7 25. Ra3 Rxd2 26. Qxd2 fxe4 27. c4 bxc4 28. g4 Nf4 29. Bxb6 Qxb6 30. Bxc4 Bd5 31. Kg3 Bf8 32. Na4 Qd8 33. Nc5 Qg5 34. Qc2 Nh5+ 35. Kg2 e3+ 36. Bxd5 Rxf2+ 37. Qxf2 exf2 38. Ne6 Nf4+ 39. Nxf4 exf4 40. Bxc6 Qe5 41. Kxf2 Bxb4 42. Rab3 Qc5+ 43. Kf1 Qc4+ 44. Kf2 Bc5+ 45. Kf3 Kg7 46. Bb7 Kf6 47. h4 g5 48. hxg5+ hxg5 49. Bc8 Qd5+ 50. Ke2 f3+ 51. Kf1 Qc4+ 52. Ke1 Qe2# 0-1

[Event "Vlissingen HZ op 12th"]
[Site "Vlissingen"]
[Date "2008.08.03"]
[Round "3"]
[White "Piket, Joop J"]
[Black "Admiraal, Miguoel"]
[Result "1/2-1/2"]
[ECO "D03"]
[WhiteElo "2186"]
[BlackElo "1944"]
[PlyCount "23"]
[EventDate "2008.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 Nd7 3. Nf3 Ngf6 4. e3 e6 5. Bd3 Be7 6. c3 0-0 7. Nbd2 c5 8. Qb1 Re8 9. Ne5 Nf8 10. f4 N6d7 11. Bxe7 Qxe7 12. 0-0 1/2-1/2

[Event "Vlissingen HZ op 12th"]
[Site "Vlissingen"]
[Date "2008.08.02"]
[Round "1"]
[White "Piket, Joop J"]
[Black "Kuiper, Willem"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2186"]
[BlackElo "1788"]
[PlyCount "107"]
[EventDate "2008.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 Be6 3. Nc3 f5 4. e3 Nf6 5. Nge2 h6 6. Nf4 Bf7 7. Bxf6 exf6 8. Qd3 Qd7 9. h4 c6 10. h5 Bd6 11. Nce2 Na6 12. c3 Qe7 13. Qxf5 Qe4 14. Qxe4+ dxe4 15. g3 0-0 16. Bh3 Rfe8 17. Bf5 Rad8 18. b4 Nc7 19. Bg6 Ne6 20. Nxe6 Rxe6 21. Bf5 Re7 22. Rh4 Rde8 23. Kd2 Bc4 24. a4 b6 25. Rb1 a6 26. Bg6 Bf7 27. Bxf7+ Kxf7 28. c4 a5 29. bxa5 bxa5 30. c5 Bc7 31. Nc3 f5 32. Rhh1 Rd7 33. Rb7 Red8 34. Kc2 Rc8 35. Rhb1 Kf6 36. R1b6 Bxb6 37. Rxd7 Bd8 38. Nd1 g6 39. Rd6+ Kg5 40. Rxg6+ Kxh5 41. Rg8 Rb8 42. Nb2 Bc7 43. Rg7 Bd8 44. Rd7 Kg4 45. Rd6 Kf3 46. Nd1 Bg5 47. Rxc6 Rb4 48. Rb6 Rxa4 49. Nc3 Ra1 50. c6 Bd8 51. Rb8 Bc7 52. Rb7 Bd8 53. Rf7 Kxf2 54. d5 1-0

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.11"]
[Round "9"]
[White "Piket, Joop J"]
[Black "Van Haastert, Edwin"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2216"]
[BlackElo "2408"]
[PlyCount "23"]
[EventDate "2007.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 e6 3. e4 h6 4. Bxf6 Qxf6 5. Nf3 d5 6. Nbd2 Qd8 7. c3 c5 8. Bb5+ Bd7 9. Bxd7+ Nxd7 10. exd5 exd5 11. 0-0 Be7 12. Qb3 1/2-1/2

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.10"]
[Round "8"]
[White "Roggeveen, Pieter"]
[Black "Piket, Joop J"]
[Result "0-1"]
[ECO "E74"]
[WhiteElo "2077"]
[BlackElo "2216"]
[PlyCount "52"]
[EventDate "2007.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Be2 0-0 6. Bg5 c5 7. d5 h6 8. Bf4 a6 9. a4 Qa5 10. Bd2 Qc7 11. h4 e5 12. g4 Ne8 13. h5 f5 14. g5 f4 15. gxh6 Bxh6 16. hxg6 Bg7 17. Bh5 Nf6 18. Qf3 Bh8 19. Qg2 Nxh5 20. Rxh5 Nd7 21. f3 Nf6 22. Rh1 Bd7 23. Nge2 Qb6 24. Nc1 Bg4 25. Rxh8+ Kxh8 26. Qg1 Qxb2 0-1

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.09"]
[Round "7"]
[White "Piket, Joop J"]
[Black "Afek, Yochanan"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "2216"]
[BlackElo "2350"]
[PlyCount "84"]
[EventDate "2007.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 e6 3. e4 h6 4. Bxf6 Qxf6 5. Nf3 d6 6. c3 Nd7 7. Nbd2 g6 8. Bd3 Bg7 9. Qe2 a6 10. a4 0-0 11. h4 e5 12. dxe5 dxe5 13. Nc4 h5 14. Ne3 Nc5 15. Bc4 c6 16. Ng5 a5 17. g4 hxg4 18. Nxg4 Qf4 19. Rg1 Kh8 20. f3 Be6 21. Bxe6 fxe6 22. Qc4 b6 23. b4 axb4 24. cxb4 Nxa4 25. Qxc6 Rfd8 26. Qxe6 Nc5 27. Nf7+ Kh7 28. Ng5+ Qxg5 29. hxg5 Rxa1+ 30. Kf2 Nxe6 31. Rxa1 Nxg5 32. Ra7 Kg8 33. Re7 Rf8 34. Rb7 Rxf3+ 35. Ke2 Rf4 36. Ne3 Nxe4 37. Rxb6 Nc3+ 38. Kd2 Ne4+ 39. Kd3 g5 40. Nd5 Rh4 41. Ne7+ Kh7 42. Ng6 Nf2+ 0-1

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.08"]
[Round "6"]
[White "Leenhouts, Koen"]
[Black "Piket, Joop J"]
[Result "1/2-1/2"]
[ECO "B09"]
[WhiteElo "2395"]
[BlackElo "2216"]
[PlyCount "34"]
[EventDate "2007.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. a3 0-0 6. Nf3 c5 7. dxc5 dxc5 8. Qxd8 Rxd8 9. e5 Nd5 10. Nxd5 Rxd5 11. Bc4 Rd8 12. Ng5 e6 13. Be3 b6 14. Kf2 Bb7 15. Be2 h6 16. Bf3 Bxf3 17. Nxf3 Nc6 1/2-1/2

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.07"]
[Round "5"]
[White "Piket, Joop J"]
[Black "Sparreboom, Willem"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "2216"]
[BlackElo "1984"]
[PlyCount "87"]
[EventDate "2007.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 Nd7 3. Nf3 Ngf6 4. e3 e6 5. c4 Be7 6. Nc3 a6 7. c5 b6 8. b4 Bb7 9. a3 h6 10. Bf4 Ne4 11. Nxe4 dxe4 12. Nd2 bxc5 13. bxc5 e5 14. Bxe5 Nxe5 15. dxe5 0-0 16. Qc2 Qd5 17. Rc1 Rad8 18. Qc3 Bxc5 19. Bc4 Qxd2+ 20. Qxd2 Rxd2 21. Kxd2 Bxa3 22. Rb1 Rd8+ 23. Kc3 Bd5 24. Rhd1 c6 25. Ra1 Be7 26. Rxa6 Kf8 27. Bxd5 cxd5 28. Ra5 f6 29. Raxd5 Rc8+ 30. Kd2 Kf7 31. exf6 Bxf6 32. Rc1 Ra8 33. g3 Kg6 34. Rc4 Re8 35. h4 Kf7 36. Rf5 g5 37. hxg5 hxg5 38. Rc6 Re6 39. Rxe6 Kxe6 40. g4 Bd8 41. Kc2 Be7 42. Kb3 Bd8 43. Kc4 Be7 44. Kd4 1-0

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.06"]
[Round "4"]
[White "Avontuur, Theo"]
[Black "Piket, Joop J"]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "2022"]
[BlackElo "2216"]
[PlyCount "90"]
[EventDate "2007.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Nge2 0-0 7. Ng3 a6 8. Bd3 Ne8 9. h4 g6 10. h5 Bg5 11. Bd2 h6 12. Bxg5 Qxg5 13. Qd2 Qxd2+ 14. Kxd2 Kg7 15. Raf1 Rh8 16. f4 exf4 17. Rxf4 Nd7 18. a3 Ne5 19. Nce2 Bg4 20. Rf2 Nf6 21. Nf4 Rhe8 22. hxg6 fxg6 23. Rhf1 Nfd7 24. Nfe2 Re7 25. b3 b5 26. Rb1 h5 27. a4 Nxd3 28. Kxd3 Ne5+ 29. Kc3 Rb7 30. Nf4 bxc4 31. Rfb2 Rab8 32. Nf1 g5 33. Nh3 Bxh3 34. gxh3 Rxb3+ 35. Rxb3 Rxb3+ 36. Rxb3 cxb3 37. Kxb3 h4 38. Ne3 g4 39. Nf5+ Kf6 40. hxg4 Kg5 41. Kc3 Kxg4 42. Kd2 h3 43. Ne3+ Kf3 44. Nf1 Kf2 45. Nh2 Kg2 0-1

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.05"]
[Round "3"]
[White "Piket, Joop J"]
[Black "Hubregtse, Sjoerd"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2216"]
[PlyCount "53"]
[EventDate "2007.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 e6 3. e4 Be7 4. Nd2 d6 5. Ngf3 Nc6 6. c3 0-0 7. Bd3 e5 8. h3 Nd7 9. Be3 Nb6 10. d5 Nb8 11. a4 a5 12. g4 N8d7 13. b4 c6 14. dxc6 bxc6 15. Qb3 d5 16. bxa5 Rxa5 17. exd5 Nxd5 18. Bb1 Nxe3 19. fxe3 Nf6 20. 0-0 Rd5 21. Qc2 g6 22. Ba2 Rd7 23. Ne4 Qb6 24. Rae1 Nxe4 25. Qxe4 Bd6 26. Nxe5 Re7 27. Qxc6 1-0

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.04"]
[Round "1"]
[White "Piket, Joop J"]
[Black "Van Gemert, Rogier"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2216"]
[BlackElo "1752"]
[PlyCount "130"]
[EventDate "2007.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. Bxf6 gxf6 4. e3 Bf5 5. Ne2 Nd7 6. Ng3 Bg6 7. h4 h6 8. h5 Bh7 9. c4 c6 10. Nc3 e6 11. cxd5 cxd5 12. Qb3 Bd6 13. f4 Rg8 14. Kf2 Rc8 15. Rc1 Ke7 16. Be2 Qb6 17. Nb5 a6 18. Nxd6 Qxd6 19. a3 Qb6 20. Qa2 Rc6 21. b4 Rgc8 22. Rc5 Nxc5 23. bxc5 Qa5 24. f5 b6 25. cxb6 Qxb6 26. Rb1 Qc7 27. Qb2 exf5 28. Bd3 f4 29. Bxh7 fxg3+ 30. Kf3 f5 31. Bxf5 Rf6 32. Qb4+ Qd6 33. Qxd6+ Kxd6 34. Kf4 Rc6 35. Rb7 Rc7 36. Rb8 Rc3 37. Rd8+ Ke7 38. Rd7+ Ke8 39. Rxd5 Rxa3 40. Re5+ Kf8 41. Kxg3 a5 42. Kf4 Ra2 43. g4 a4 44. Ra5 a3 45. Ke5 Rb6 46. d5 Ra1 47. d6 f6+ 48. Kxf6 Rxd6+ 49. Be6 Rf1+ 50. Ke5 Rd3 51. e4 Rc3 52. Ra7 Rf2 53. g5 Rc5+ 54. Bd5 hxg5 55. Rxa3 Kg7 56. Ra6 Rh2 57. Rg6+ Kh7 58. Rxg5 Kh6 59. Rg8 Rxh5+ 60. Kf6 Kh7 61. Rg7+ Kh6 62. Rd7 Rh2 63. e5 Rd2 64. Ke6 Kg6 65. Rd8 Ra5 1/2-1/2

[Event "Leiden Noteboom Memorial 67th"]
[Site "Leiden"]
[Date "2007.02.16"]
[Round "1"]
[White "Burg, Twan"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2298"]
[BlackElo "2207"]
[PlyCount "49"]
[EventDate "2007.02.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 116 Extra"]
[Source "ChessBase"]
[SourceDate "2007.03.07"]
[SourceVersion "1"]
[SourceVersionDate "2007.03.07"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nc3 c6 4. f4 d5 5. Nf3 Bg4 6. Be3 e6 7. h3 Bxf3 8. Qxf3 Qa5 9. exd5 Bb4 10. dxe6 Bxc3+ 11. bxc3 Qxc3+ 12. Kf2 Qxc2+ 13. Be2 fxe6 14. Rab1 Qxa2 15. Rxb7 Qd5 16. Qg3 Nf6 17. Bf3 Qd6 18. h4 Nbd7 19. h5 gxh5 20. Qg5 0-0-0 21. Rhb1 Nd5 22. Be2 Qa3 23. R1b3 Qa2 24. Qg7 Rhg8 25. Rb8+ 1-0

[Event "Corus reserve op"]
[Site "Wijk aan Zee"]
[Date "2001.01.26"]
[Round "9"]
[White "Popov, Luben"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "A56"]
[WhiteElo "2347"]
[BlackElo "2228"]
[PlyCount "159"]
[EventDate "2001.01.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 080 Extra"]
[Source "ChessBase"]
[SourceDate "2001.03.08"]
[SourceVersion "1"]
[SourceVersionDate "2001.03.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Nf3 0-0 7. g3 Ne8 8. Bg2 Na6 9. 0-0 Nac7 10. Ne1 a6 11. a4 b6 12. Nd3 Rb8 13. f4 Bf6 14. fxe5 Bxe5 15. Nxe5 dxe5 16. a5 b5 17. Be3 bxc4 18. Bxc5 Nd6 19. Na4 Rb5 20. Bb6 Qe7 21. Qd2 Na8 22. Nc3 Rb3 23. Bc5 Qc7 24. Be3 Bd7 25. Bf3 Rfb8 26. Ra2 R3b7 27. Bd1 Bh3 28. Re1 Rb4 29. Qf2 Bd7 30. Bc5 f6 31. Bxb4 Rxb4 32. g4 h6 33. h4 Nf7 34. Kg2 Qb8 35. Bf3 Nc7 36. Rc1 Ne8 37. Nd1 Ned6 38. Ne3 Qb5 39. Qc2 Qc5 40. Qd2 Nb5 41. Nc2 Rb3 42. Na1 Rxf3 43. Kxf3 Nd4+ 44. Kg3 Qc8 45. Nc2 Nb3 46. Qe1 Nxc1 47. Qxc1 Nd6 48. Ne3 Nxe4+ 49. Kf3 Nd6 50. Qg1 Qb7 51. Qg2 e4+ 52. Kg3 Qb3 53. Ra3 Qb8 54. Qf2 h5 55. gxh5 Nb5+ 56. Qf4 Qxf4+ 57. Kxf4 Nxa3 58. bxa3 c3 59. Kxe4 f5+ 60. Kd3 f4 61. Nd1 c2 62. Kxc2 Ba4+ 63. Kd2 Bb3 64. Nc3 Bc4 65. Ke1 Kf7 66. Kf2 Kf6 67. d6 Be6 68. Ne4+ Ke5 69. Nc5 Kxd6 70. Nxa6 Bf7 71. Nb4 Bxh5 72. Nd3 Kc6 73. Nxf4 Bf7 74. Kg3 Kb5 75. Kg4 Kxa5 76. Kg5 Ka4 77. Nh5 Kxa3 78. Nxg7 Kb4 79. Kf6 Bg8 80. h5 1-0

[Event "Corus reserve op"]
[Site "Wijk aan Zee"]
[Date "2001.01.25"]
[Round "8"]
[White "Piket, Joop J"]
[Black "Wiersma, Eelke"]
[Result "1/2-1/2"]
[ECO "A58"]
[WhiteElo "2228"]
[BlackElo "2404"]
[PlyCount "44"]
[EventDate "2001.01.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 080 Extra"]
[Source "ChessBase"]
[SourceDate "2001.03.08"]
[SourceVersion "1"]
[SourceVersionDate "2001.03.08"]
[SourceQuality "1"]

1. d4 c5 2. d5 g6 3. c4 b5 4. cxb5 a6 5. bxa6 Nf6 6. Nc3 Bxa6 7. g3 d6 8. Bg2 Bg7 9. Nf3 Nbd7 10. 0-0 Nb6 11. Re1 0-0 12. e4 Nfd7 13. Bf1 Qc8 14. Bxa6 Qxa6 15. Qe2 Rfb8 16. Qxa6 Rxa6 17. Re2 Nc4 18. Nd1 Rb4 19. a3 Nce5 20. Nxe5 Nxe5 21. Kg2 Kf8 22. Bd2 Rb3 1/2-1/2

[Event "Corus reserve op"]
[Site "Wijk aan Zee"]
[Date "2001.01.23"]
[Round "7"]
[White "Termeulen, Albert"]
[Black "Piket, Joop J"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2214"]
[BlackElo "2228"]
[PlyCount "66"]
[EventDate "2001.01.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 080 Extra"]
[Source "ChessBase"]
[SourceDate "2001.03.08"]
[SourceVersion "1"]
[SourceVersionDate "2001.03.08"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nc3 c6 4. Be3 Bg7 5. Qd2 b5 6. Bd3 a6 7. h3 Nd7 8. a4 Bb7 9. Nf3 b4 10. Ne2 c5 11. 0-0 Qc7 12. c3 c4 13. Bb1 b3 14. Ng3 e5 15. Qe2 a5 16. dxe5 dxe5 17. Nd2 Rc8 18. f4 exf4 19. Bxf4 Be5 20. Bxe5 Nxe5 21. Rf2 Qc5 22. Ngf1 Nf6 23. Ne3 Nh5 24. Nd5 0-0 25. Nf3 Nxf3+ 26. Qxf3 Bxd5 27. exd5 Rce8 28. Bf5 Re3 29. Qg4 Rfe8 30. Kh2 Qd6+ 31. Kg1 Ng3 32. Rf4 Qxf4 33. Qxf4 Ne2+ 0-1

[Event "Corus reserve op"]
[Site "Wijk aan Zee"]
[Date "2001.01.22"]
[Round "6"]
[White "Piket, Joop J"]
[Black "De Blecourt, Sandra"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2228"]
[BlackElo "2059"]
[PlyCount "91"]
[EventDate "2001.01.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 080 Extra"]
[Source "ChessBase"]
[SourceDate "2001.03.08"]
[SourceVersion "1"]
[SourceVersionDate "2001.03.08"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 Nf6 3. Bxf6 exf6 4. e3 Be6 5. Bd3 c5 6. c3 Nc6 7. Ne2 Qb6 8. Nd2 c4 9. Bc2 Qxb2 10. Rb1 Qxa2 11. Rxb7 Qa6 12. Qb1 Bd6 13. 0-0 f5 14. Rb2 g6 15. Ra2 Qc8 16. Qb5 Rb8 17. Qa6 Qc7 18. Ba4 Bd7 19. Bxc6 Bxc6 20. Qxa7 Bxh2+ 21. Kh1 Qxa7 22. Rxa7 Bd6 23. Nf3 Rb2 24. Nf4 0-0 25. Ne5 Bxe5 26. dxe5 Re8 27. Rc7 Ba8 28. Ra1 Reb8 29. Kh2 R2b6 30. Kg3 Bb7 31. Ra7 h6 32. e6 fxe6 33. Nxg6 Rb3 34. Nf4 Rxc3 35. Nxe6 Rb3 36. Nd4 Rb6 37. Nxf5 c3 38. Rxc3 Rg6+ 39. Kf4 Rxg2 40. Nxh6+ Kf8 41. Ng4 Rg1 42. Ne5 Kg8 43. Nd7 Rc8 44. Rxc8+ Bxc8 45. Ra8 Rc1 46. Nb6 1-0

[Event "Corus reserve op"]
[Site "Wijk aan Zee"]
[Date "2001.01.21"]
[Round "5"]
[White "Afek, Yochanan"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2360"]
[BlackElo "2228"]
[PlyCount "79"]
[EventDate "2001.01.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 080 Extra"]
[Source "ChessBase"]
[SourceDate "2001.03.08"]
[SourceVersion "1"]
[SourceVersionDate "2001.03.08"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. c3 Bg7 4. f4 c6 5. Nf3 d5 6. e5 h5 7. Bd3 Nh6 8. Be3 Bg4 9. Nbd2 e6 10. h3 Bxf3 11. Nxf3 h4 12. 0-0 Nf5 13. Bf2 Bf8 14. b3 Be7 15. c4 Kf8 16. Qc2 Kg7 17. Rac1 Ba3 18. Rb1 Be7 19. c5 Nd7 20. b4 a6 21. a4 b5 22. cxb6 Qxb6 23. Rfc1 Rac8 24. Qd2 Rb8 25. a5 Qb7 26. Qe2 Ra8 27. Rb3 Qc7 28. Bxa6 Rhb8 29. Rcb1 Ra7 30. Bd3 Rab7 31. Bxf5 exf5 32. Qe1 c5 33. b5 c4 34. b6 Qc6 35. Re3 Nf8 36. Bxh4 Ne6 37. Bxe7 Rxe7 38. Qh4 Ra7 39. Qf6+ Kg8 40. Ng5 1-0

[Event "Corus reserve op"]
[Site "Wijk aan Zee"]
[Date "2001.01.20"]
[Round "4"]
[White "Piket, Joop J"]
[Black "Breedveld, Andre"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2228"]
[BlackElo "2119"]
[PlyCount "130"]
[EventDate "2001.01.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 080 Extra"]
[Source "ChessBase"]
[SourceDate "2001.03.08"]
[SourceVersion "1"]
[SourceVersionDate "2001.03.08"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 h6 3. Bh4 c6 4. c3 Bf5 5. Nd2 Nd7 6. Ngf3 Ngf6 7. e3 e6 8. Bg3 Be7 9. h3 a5 10. Be2 a4 11. b4 b5 12. a3 0-0 13. 0-0 Rc8 14. Bh2 Ne8 15. Ne1 Bf6 16. g4 Bh7 17. f4 Nd6 18. Nef3 Ne4 19. Nxe4 Bxe4 20. Nd2 Bh7 21. Qe1 Be7 22. Bg3 f5 23. Kh2 Nf6 24. Bf3 Ne4 25. Nxe4 fxe4 26. Bg2 Bg6 27. Qe2 Qe8 28. Rh1 Bf7 29. Kg1 g5 30. fxg5 hxg5 31. h4 gxh4 32. Bf4 Kg7 33. g5 Bh5 34. Qe1 Kg6 35. Qxh4 Rh8 36. Be5 Bxg5 37. Bxe4+ dxe4 38. Qxe4+ Kh6 39. Bxh8 Qxh8 40. Ra2 Qg8 41. Rg2 Rf8 42. Rh3 Rf5 43. Rxh5+ Kxh5 44. Qg4+ Kh6 45. Qh3+ Kg6 46. e4 Rf4 47. Qg3 Kf7 48. Qxg5 Qxg5 49. Rxg5 Rxe4 50. Rc5 Re1+ 51. Kf2 Ra1 52. Rxc6 Rxa3 53. Ke3 Ra1 54. Kd3 Rd1+ 55. Kc2 Rh1 56. Rc5 Rh2+ 57. Kb1 Rh1+ 58. Kb2 Rh2+ 59. Ka3 Rh3 60. Rxb5 Rxc3+ 61. Kxa4 Rd3 62. Rb7+ Ke8 63. Kb5 Rxd4 64. Kc6 Rc4+ 65. Kd6 Rd4+ 1/2-1/2

[Event "Corus reserve op"]
[Site "Wijk aan Zee"]
[Date "2001.01.18"]
[Round "3"]
[White "Perez Garcia, Hebert"]
[Black "Piket, Joop J"]
[Result "1/2-1/2"]
[ECO "B26"]
[WhiteElo "2205"]
[BlackElo "2228"]
[PlyCount "18"]
[EventDate "2001.01.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 080 Extra"]
[Source "ChessBase"]
[SourceDate "2001.03.08"]
[SourceVersion "1"]
[SourceVersionDate "2001.03.08"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e6 7. Qd2 Nge7 8. Bh6 0-0 9. h4 f5 1/2-1/2

[Event "Corus reserve op"]
[Site "Wijk aan Zee"]
[Date "2001.01.17"]
[Round "2"]
[White "Piket, Joop J"]
[Black "De Haas, Piet"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2228"]
[PlyCount "72"]
[EventDate "2001.01.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 080 Extra"]
[Source "ChessBase"]
[SourceDate "2001.03.08"]
[SourceVersion "1"]
[SourceVersionDate "2001.03.08"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 c5 4. d5 Qb6 5. Nd2 Nxd2 6. Bxd2 e6 7. e4 d6 8. Bc3 e5 9. a4 Be7 10. f4 exf4 11. a5 Bh4+ 12. Kd2 Qd8 13. Bxg7 Rg8 14. Bc3 Nd7 15. Nf3 Bf6 16. Bb5 Rxg2+ 17. Kc1 Bxc3 18. bxc3 a6 19. Qf1 Rg6 20. Bxd7+ Bxd7 21. e5 Bg4 22. exd6 Qxd6 23. Qe1+ Kf8 24. Ne5 Rg7 25. Nc4 Qf6 26. Nb6 Re8 27. Qd2 Kg8 28. Ra4 Re2 29. Qxf4 Qxf4+ 30. Rxf4 Bh3 31. Rf3 Bg2 32. d6 Bxh1 33. d7 Rg1+ 34. Kb2 Rd1 35. Rg3+ Kf8 36. Rg1 Red2 0-1

[Event "Corus reserve op"]
[Site "Wijk aan Zee"]
[Date "2001.01.16"]
[Round "1"]
[White "Cmilyte, Viktorija"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "A56"]
[WhiteElo "2433"]
[BlackElo "2228"]
[PlyCount "37"]
[EventDate "2001.01.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 080 Extra"]
[Source "ChessBase"]
[SourceDate "2001.03.08"]
[SourceVersion "1"]
[SourceVersionDate "2001.03.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Nge2 Nh5 7. Ng3 Nxg3 8. hxg3 a6 9. Be3 Bg5 10. f4 exf4 11. gxf4 Bh4+ 12. Kd2 Bf6 13. e5 dxe5 14. fxe5 Bxe5 15. Qh5 Bxc3+ 16. bxc3 Nd7 17. Re1 Kf8 18. Bd3 b6 19. Bh6 1-0

[Event "Amsterdam blindfold sim"]
[Site "Amsterdam"]
[Date "1999.09.05"]
[Round "?"]
[White "Shirov, Alexei"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2734"]
[BlackElo "2235"]
[PlyCount "59"]
[EventDate "1999.09.05"]
[EventType "simul"]
[EventRounds "1"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nc3 c6 4. f4 d5 5. Nf3 Bg7 6. e5 Bg4 7. h3 Bxf3 8. Qxf3 e6 9. Be3 h5 10. g3 Nd7 11. 0-0-0 b5 12. g4 Qa5 13. Kb1 Ne7 14. Bd3 b4 15. Ne2 c5 16. dxc5 Nc6 17. Ng3 h4 18. Ne4 dxe4 19. Bxe4 Ncxe5 20. fxe5 Nxe5 21. Bc6+ Kf8 22. Qe4 f5 23. gxf5 gxf5 24. Rhf1 Rd8 25. Rd6 Bf6 26. Rxf5 exf5 27. Rxf6+ Nf7 28. Rxf7+ Kxf7 29. Qe5 Kf8 30. Qxh8+ 1-0

[Event "Donner Memorial op"]
[Site "Amsterdam"]
[Date "1996.??.??"]
[Round "1"]
[White "Dao, Thien Hai"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "A56"]
[WhiteElo "2535"]
[BlackElo "2235"]
[PlyCount "63"]
[EventDate "1996.08.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 0-0 7. Bg2 Na6 8. Nge2 Nc7 9. a4 b6 10. 0-0 Nh5 11. f4 g6 12. Be3 Bg4 13. f5 Bg5 14. Bf2 a6 15. Qc2 Bxe2 16. Qxe2 f6 17. Be1 Rb8 18. Nd1 b5 19. Nf2 bxc4 20. Bc3 Rf7 21. Ng4 Qf8 22. Qxc4 Qg7 23. Rab1 Kh8 24. Bf3 Rg8 25. Kh1 Ra8 26. b4 cxb4 27. Bxb4 Ne8 28. Ba5 Qf8 29. Be2 gxf5 30. exf5 Qg8 31. Rb3 Neg7 32. Rb6 1-0

[Event "Donner Memorial op"]
[Site "Amsterdam"]
[Date "1995.??.??"]
[Round "4"]
[White "Blees, Albert"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "B32"]
[WhiteElo "2420"]
[BlackElo "2245"]
[PlyCount "52"]
[EventDate "1995.08.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qe7 8. Qd1 Nf6 9. Nc3 h6 10. Bc4 b5 11. Nd5 Nxd5 12. Bxd5 0-0 13. 0-0 Bb7 14. f4 Na5 15. Bxb7 Nxb7 16. f5 Qf6 17. Be3 Rac8 18. a4 Rc4 19. axb5 axb5 20. Qxd7 Qc6 21. Qxc6 Rxc6 22. c3 f6 23. Rfd1 Rf7 24. Ra8+ Rf8 25. Ra7 Rf7 26. Rd5 Kh7 1-0

[Event "Donner Memorial op"]
[Site "Amsterdam"]
[Date "1995.??.??"]
[Round "5"]
[White "Piket, Joop J"]
[Black "Stefansson, Hannes"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "2245"]
[BlackElo "2520"]
[PlyCount "36"]
[EventDate "1995.08.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 e6 3. e4 h6 4. Bxf6 Qxf6 5. Nf3 d6 6. h4 e5 7. c3 Be7 8. Nbd2 0-0 9. dxe5 dxe5 10. h5 a5 11. Nc4 Nd7 12. Ne3 c6 13. Nh4 Nc5 14. Qc2 Qf4 15. Nhf5 Bg5 16. Bd3 Rd8 17. Rd1 Rxd3 18. Rxd3 Qxe4 0-1

[Event "Leiden op"]
[Site "Leiden"]
[Date "1992.02.29"]
[Round "3"]
[White "Piket, Joop J"]
[Black "Cifuentes Parada, Roberto"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "2245"]
[BlackElo "2509"]
[PlyCount "72"]
[EventDate "1992.02.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d6 2. c4 e5 3. dxe5 dxe5 4. Qxd8+ Kxd8 5. Nc3 Be6 6. e4 Nd7 7. Nf3 f6 8. a3 a5 9. Be3 a4 10. Be2 Bc5 11. Bxc5 Nxc5 12. Rd1+ Kc8 13. 0-0 Ne7 14. Ne1 Nc6 15. Nc2 Na5 16. Ne3 c6 17. f4 exf4 18. Rxf4 Kc7 19. Bg4 Rae8 20. Bxe6 Rxe6 21. Nf5 g5 22. Rff1 Nxc4 23. Rd4 Nxb2 24. Ng7 Re7 25. Nh5 Rd8 26. Rxd8 Kxd8 27. Nxf6 Rf7 28. e5 Nc4 29. Rd1+ Ke7 30. Ng8+ Ke6 31. Nh6 Rd7 32. Rf1 Rd3 33. Rf6+ Kd7 34. Rf7+ Ke8 35. Ne2 Rd1+ 36. Kf2 Ne4+ 0-1

[Event "NED-ch47 sf"]
[Site "Enschede"]
[Date "1991.11.24"]
[Round "9"]
[White "Piket, Joop J"]
[Black "Vrenegoor, Taco"]
[Result "1/2-1/2"]
[ECO "D03"]
[WhiteElo "2260"]
[PlyCount "26"]
[EventDate "1991.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 Nf6 3. Bg5 d5 4. e3 Be7 5. Nbd2 b6 6. c3 Bb7 7. Bd3 Nbd7 8. Qb1 c5 9. 0-0 h6 10. Bh4 0-0 11. Re1 Rc8 12. a4 a6 13. e4 dxe4 1/2-1/2

[Event "NED-ch47 sf"]
[Site "Enschede"]
[Date "1991.11.23"]
[Round "8"]
[White "Wiersma, Eelke"]
[Black "Piket, Joop J"]
[Result "1/2-1/2"]
[ECO "B06"]
[BlackElo "2260"]
[PlyCount "82"]
[EventDate "1991.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nc3 c6 4. Be3 Bg7 5. Qd2 b5 6. f3 a6 7. a4 b4 8. Nd1 a5 9. Bd3 Nd7 10. Ne2 h5 11. 0-0 Qc7 12. f4 e6 13. f5 exf5 14. exf5 gxf5 15. Bxf5 Ne7 16. Bd3 h4 17. Nf2 Nf6 18. c3 h3 19. g3 c5 20. Ne4 Nxe4 21. Bxe4 Bb7 22. Bxb7 Qxb7 23. Rf3 0-0-0 24. Qd3 Rd7 25. dxc5 dxc5 26. Qb5 Nd5 27. Bxc5 Nc7 28. Qxa5 Rhd8 29. Nd4 Ne6 30. Rc1 Bh6 31. Re1 Nf4 32. Bb6 Rd5 33. Bxd8 Rxa5 34. Bxa5 Qd5 35. Re8+ Kb7 36. Re7+ Ka6 37. Bxb4 Ne6 38. Nf5 Qd1+ 39. Rf1 Qd2 40. Rf2 Qc1+ 41. Rf1 Qxb2 1/2-1/2

[Event "NED-ch47 sf"]
[Site "Enschede"]
[Date "1991.11.22"]
[Round "7"]
[White "Perez Garcia, Hebert"]
[Black "Piket, Joop J"]
[Result "1/2-1/2"]
[ECO "D79"]
[WhiteElo "2240"]
[BlackElo "2260"]
[PlyCount "15"]
[EventDate "1991.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d5 6. c4 c6 7. cxd5 cxd5 8. Ne5 1/2-1/2

[Event "NED-ch47 sf"]
[Site "Enschede"]
[Date "1991.11.10"]
[Round "6"]
[White "Piket, Joop J"]
[Black "Van de Oudeweetering, Arthur"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2260"]
[BlackElo "2360"]
[PlyCount "31"]
[EventDate "1991.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 h6 3. Bh4 c6 4. c3 Qb6 5. Qc1 Bf5 6. Nd2 Nd7 7. e3 e5 8. Bg3 exd4 9. exd4 Ngf6 10. Be2 Be7 11. Ngf3 0-0 12. 0-0 c5 13. a4 a5 14. Re1 Ne4 15. Bb5 Ndf6 16. Nb3 1/2-1/2

[Event "NED-ch47 sf"]
[Site "Enschede"]
[Date "1991.11.09"]
[Round "5"]
[White "Piket, Joop J"]
[Black "Strothotte, Sjonnie"]
[Result "1/2-1/2"]
[ECO "E70"]
[WhiteElo "2260"]
[PlyCount "90"]
[EventDate "1991.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d6 2. c4 g6 3. Nc3 Nf6 4. e4 Bg7 5. Bg5 0-0 6. f4 c6 7. Qd2 Na6 8. Nf3 Nc7 9. d5 cxd5 10. cxd5 Nd7 11. Nd4 a5 12. Be2 Nc5 13. f5 Bd7 14. 0-0 b5 15. Bf3 b4 16. Nce2 Bb5 17. Nxb5 Nxb5 18. Kh1 Ra7 19. Be3 Rc7 20. fxg6 hxg6 21. Nf4 Qd7 22. Rad1 Na4 23. Rb1 Rfc8 24. Qd1 Nxb2 25. Rxb2 Bxb2 26. Bg4 Qe8 27. h4 Rc1 28. Bxc1 Rxc1 29. Qd3 Rxf1+ 30. Qxf1 Bf6 31. h5 g5 32. Nh3 Kg7 33. Be2 Nc3 34. Bd3 Qa4 35. h6+ Kxh6 36. e5 Bxe5 37. Qf5 Qd1+ 38. Ng1 Qh5+ 39. Nh3 Kg7 40. g3 Bf6 41. Kg2 Nxa2 42. Nf4 Qh6 43. Qg4 Nc1 44. Be4 Kf8 45. Qc8+ Kg7 1/2-1/2

[Event "NED-ch47 sf"]
[Site "Enschede"]
[Date "1991.11.08"]
[Round "4"]
[White "Van Gisbergen, Stan"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "E85"]
[WhiteElo "2295"]
[BlackElo "2260"]
[PlyCount "81"]
[EventDate "1991.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. Nge2 a6 8. Qd2 Nbd7 9. d5 Ne8 10. g3 f5 11. Bg2 Ndf6 12. 0-0 h5 13. Bg5 Qd7 14. Bh3 Qf7 15. Qc2 Nh7 16. Be3 f4 17. Bxc8 Rxc8 18. gxf4 Bh6 19. Kh1 exf4 20. Bf2 Nhf6 21. Rg1 Kh7 22. Nd4 Ng7 23. Ne6 Nxe6 24. dxe6 Qxe6 25. e5 Nd7 26. exd6 cxd6 27. Rae1 Ne5 28. c5 Rf5 29. cxd6 Qxd6 30. Qe4 Rc7 31. Bd4 Bg7 32. Rd1 Qc6 33. Bxe5 Qxe4 34. Nxe4 Rxe5 35. Rd6 Rc6 36. Rgxg6 Rxd6 37. Rxd6 Re7 38. b3 Rc7 39. Ng5+ Kg8 40. Rd8+ Bf8 41. Rxf8+ 1-0

[Event "NED-ch47 sf"]
[Site "Enschede"]
[Date "1991.11.03"]
[Round "3"]
[White "Piket, Joop J"]
[Black "Van de Plassche, Bas"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2260"]
[PlyCount "53"]
[EventDate "1991.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. Bxf6 gxf6 4. e3 Bf5 5. Bd3 Bg6 6. h4 c6 7. h5 Bxd3 8. Qxd3 Qb6 9. b3 e6 10. Ne2 Nd7 11. a4 a5 12. Nd2 f5 13. g3 Rg8 14. c4 Bb4 15. Nc3 Nf6 16. Ke2 Ke7 17. Rac1 Rac8 18. cxd5 cxd5 19. Nb5 Rc6 20. Rc2 Rgc8 21. Rhc1 Nxh5 22. Nf3 Qd8 23. Rxc6 Rxc6 24. Rxc6 bxc6 25. Ne5 Qb6 26. Na7 c5 27. Nc8+ 1-0

[Event "NED-ch47 sf"]
[Site "Enschede"]
[Date "1991.11.02"]
[Round "2"]
[White "Visser, Yge"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2370"]
[BlackElo "2260"]
[PlyCount "21"]
[EventDate "1991.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Nc6 6. Bd2 Bg4 7. d5 Nxd5 8. Nb5 Qb6 9. c4 Bxf3 10. Qxf3 Ndb4 11. c5 1-0

[Event "NED-ch47 sf"]
[Site "Enschede"]
[Date "1991.11.01"]
[Round "1"]
[White "Zagema, Wieb"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2370"]
[BlackElo "2260"]
[PlyCount "67"]
[EventDate "1991.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Bc4 Nf6 5. a3 Nc6 6. d3 Bg4 7. f3 Bh5 8. Nge2 Ne5 9. b4 Qb6 10. Na4 Qc6 11. b5 Qd7 12. Nc5 Qf5 13. Ng3 Nxf3+ 14. Qxf3 Qxc5 15. Qxb7 Qe5+ 16. Kd2 Rd8 17. Qc6+ Rd7 18. b6 g6 19. c3 Qf4+ 20. Kc2 Qf2+ 21. Kb3 Qxb6+ 22. Bb5 Qxc6 23. Bxc6 Bg4 24. Be3 a6 25. Bd4 Bg7 26. Ne4 0-0 27. Nxf6+ Bxf6 28. Bxd7 Bxd7 29. Rab1 Bf5 30. Kc2 Rd8 31. Rhd1 h5 32. Rb7 Rc8 33. Rdb1 c5 34. Rb8 1-0

[Event "Ostend op"]
[Site "Ostend"]
[Date "1991.??.??"]
[Round "5"]
[White "Hansen, Carsten"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "E61"]
[WhiteElo "2290"]
[BlackElo "2260"]
[PlyCount "113"]
[EventDate "1991.09.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "CBM 026 Extra"]
[Source "ChessBase"]
[SourceDate "1992.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1992.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. Bg5 d6 6. e3 h6 7. Bh4 b6 8. Be2 Bb7 9. 0-0 Nbd7 10. Qc2 Qe8 11. Nd2 e5 12. d5 Nh7 13. f3 a6 14. Rab1 Bc8 15. b4 f5 16. e4 g5 17. Bf2 f4 18. Nb3 h5 19. c5 bxc5 20. bxc5 Qg6 21. cxd6 cxd6 22. Na5 Bf6 23. Na4 g4 24. Qc6 g3 25. Qxa8 gxf2+ 26. Rxf2 Bh4 27. Nc6 Nc5 28. Nxc5 Bh3 29. Qxf8+ Nxf8 30. Bf1 dxc5 31. Rfb2 Bd7 32. Bxa6 c4 33. Bxc4 Qd6 34. Bb5 Qa3 35. Rc2 Qe3+ 36. Kh1 Bd8 37. a4 Bxc6 38. dxc6 Bc7 39. a5 Nh7 40. a6 Nf6 41. Ra2 Qa7 42. Bf1 Ne8 43. Rb7 Qd4 44. Rab2 Bd6 45. Rb1 Bc5 46. Be2 h4 47. h3 Qa4 48. Rb8 Kf7 49. Rxe8 Qxc6 50. Reb8 Qa4 51. R8b7+ Kf6 52. Bb5 Qd4 53. Rd7 Qf2 54. Rdd1 Ba7 55. Rd6+ Ke7 56. Rh6 Qc2 57. Bd3 1-0

[Event "Ostend op"]
[Site "Ostend"]
[Date "1991.??.??"]
[Round "4"]
[White "Piket, Joop J"]
[Black "Motwani, Paul"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "2260"]
[BlackElo "2440"]
[PlyCount "96"]
[EventDate "1991.09.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "CBM 026 Extra"]
[Source "ChessBase"]
[SourceDate "1992.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1992.03.01"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 c5 3. e3 Nf6 4. Be2 b6 5. 0-0 Bb7 6. b3 Be7 7. Bb2 cxd4 8. exd4 0-0 9. Ne5 d6 10. Bf3 Qc7 11. Bxb7 Qxb7 12. Qf3 Qxf3 13. Nxf3 Rc8 14. c4 Nc6 15. Nc3 Nb4 16. Rfd1 d5 17. cxd5 Nfxd5 18. Nxd5 Nxd5 19. Ne1 h5 20. g3 g5 21. Rac1 g4 22. Rxc8+ Rxc8 23. Rc1 Rxc1 24. Bxc1 Nc3 25. Nd3 Nxa2 26. Bd2 Bf6 27. Kg2 Bxd4 28. Nf4 Nc3 29. Nxh5 Ne4 30. Be1 Nc5 31. b4 Nd3 32. Kf1 b5 33. Ke2 Nxe1 34. Kxe1 Be5 35. Kd2 Kh7 36. Ke3 Kg6 37. Nf4+ Kf5 38. Ne2 a6 39. Nd4+ Bxd4+ 40. Kxd4 e5+ 41. Kd5 f6 42. Kd6 Ke4 43. Ke6 f5 44. Kf6 Kd5 45. Kxf5 a5 46. bxa5 b4 47. a6 Kc6 48. Ke4 Kb6 0-1

[Event "NED Open-ch10 Reinbouw"]
[Site "Dieren"]
[Date "1979.08.02"]
[Round "3"]
[White "De Jong, Tom"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "59"]
[EventDate "1979.07.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. g4 h5 6. g5 Nh7 7. h4 Nc6 8. Be3 e5 9. d5 Nd4 10. Bxd4 exd4 11. Nb5 a6 12. Nxd4 c5 13. dxc6 Qb6 14. cxb7 Bxb7 15. c3 Qxb2 16. Rh3 Rb8 17. Rb1 Qxa2 18. Nc6 Bxc6 19. Rxb8+ Ke7 20. Rb6 Rc8 21. Rxa6 Qb2 22. Ra7+ Bd7 23. e5 Bxe5 24. Re3 Nf8 25. f4 Rxc3 26. fxe5 Rc1 27. exd6+ Kd8 28. Ra8+ Bc8 29. Rxc8+ Kxc8 30. Re8+ 1-0

[Event "NED Open-ch10 Reinbouw"]
[Site "Dieren"]
[Date "1979.08.01"]
[Round "2"]
[White "Huijzer, Jacques"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "41"]
[EventDate "1979.07.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 Bg7 5. Qd2 c6 6. Bh6 Bxh6 7. Qxh6 Qa5 8. 0-0-0 b5 9. e5 dxe5 10. dxe5 b4 11. exf6 bxc3 12. Bc4 e6 13. Nf3 Qb4 14. Bb3 Nd7 15. Rd4 Qf8 16. Qf4 Qc5 17. Re1 Qf5 18. Qd6 Qc5 19. Rxe6+ fxe6 20. f7+ Kd8 21. Qxc5 1-0

[Event "IBM-B"]
[Site "Amsterdam"]
[Date "1970.07.27"]
[Round "11"]
[White "Piket, Joop J"]
[Black "Tatai, Stefano"]
[Result "0-1"]
[ECO "E43"]
[PlyCount "65"]
[EventDate "1970.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 0-0 9. e4 Ne8 10. Ne2 Nc6 11. d5 Ne5 12. f4 Nxd3+ 13. Qxd3 f5 14. e5 d6 15. dxe6 Qe7 16. 0-0 Qxe6 17. Ng3 Rd8 18. Re1 Ba6 19. Qd5 Bxc4 20. Qxe6+ Bxe6 21. exd6 Rxd6 22. a4 a5 23. Bb2 g6 24. c4 Bxc4 25. Re7 Re6 26. Rxe6 Bxe6 27. Be5 Nf6 28. Nf1 Nd7 29. Bd6 Rc8 30. Re1 Kf7 31. Nd2 Rc6 32. Be5 Nxe5 33. Rxe5 0-1

[Event "IBM-B"]
[Site "Amsterdam"]
[Date "1970.07.25"]
[Round "10"]
[White "Cortlever, Nicolaas"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "80"]
[EventDate "1970.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Nf6 8. Nc3 Qe7 9. Qxe7+ Nxe7 10. Bg5 b5 11. Bd3 Bb7 12. f4 h6 13. Bh4 Ng6 14. Bxf6 gxf6 15. fxe5 fxe5 16. 0-0 d6 17. g3 Ke7 18. Rf2 Rh7 19. h4 Rg7 20. Kh2 Nf8 21. Nd1 Bc8 22. Ne3 Be6 23. a4 b4 24. a5 Nd7 25. Bc4 Nc5 26. Bd5 Rb8 27. Raf1 Rb5 28. Nf5+ Bxf5 29. Rxf5 Ne6 30. Bxe6 fxe6 31. Rf8 Rc5 32. Ra8 Rxc2+ 33. Kh3 Rc7 34. Rxa6 Rg8 35. Rb6 Ra8 36. a6 h5 37. Ra1 d5 38. exd5 exd5 39. Ra5 Rd7 40. Rb7 Ke6 1-0

[Event "IBM-B"]
[Site "Amsterdam"]
[Date "1970.07.24"]
[Round "9"]
[White "Hamann, Svend"]
[Black "Piket, Joop J"]
[Result "0-1"]
[ECO "A56"]
[PlyCount "116"]
[EventDate "1970.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Bd3 0-0 7. Nf3 Ne8 8. h3 Nd7 9. g4 Kh8 10. Qc2 Ndf6 11. a3 Bd7 12. b4 b6 13. Be3 g6 14. Nd2 Ng8 15. f4 exf4 16. Bxf4 Bh4+ 17. Kd1 Bg5 18. Bh2 Qf6 19. Rf1 Ba4 20. Nb3 Bxb3 21. Qxb3 Qd4 22. Rf3 Qg7 23. Kc2 f6 24. Raf1 Qe7 25. bxc5 bxc5 26. Bg3 Bh6 27. Rb1 Rd8 28. Ne2 Bg7 29. Nf4 Nc7 30. Qb7 Rd7 31. Qc6 Nh6 32. Ne2 Nf7 33. h4 Na8 34. Nc3 Nb6 35. a4 Rc7 36. Qb5 Nd7 37. Rff1 Nde5 38. Be2 Nh6 39. Qa6 Rd7 40. Rf4 Rfd8 41. Qb5 g5 42. Rff1 Nhxg4 43. Rh1 Nh6 44. a5 Ng6 45. h5 Nf4 46. Bxf4 gxf4 47. Bd3 Qe5 48. Rbe1 f5 49. Na4 Ng4 50. exf5 Ne3+ 51. Kd2 Qd4 52. h6 Bf6 53. Rhg1 Re7 54. Rh1 Ree8 55. Qa6 Rb8 56. Rb1 Rxb1 57. Rxb1 Rg8 58. Re1 f3 0-1

[Event "IBM-B"]
[Site "Amsterdam"]
[Date "1970.07.22"]
[Round "8"]
[White "Piket, Joop J"]
[Black "Van der Weide, Piet"]
[Result "0-1"]
[ECO "A85"]
[PlyCount "56"]
[EventDate "1970.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 f5 2. Nc3 Nf6 3. d4 d6 4. e4 fxe4 5. f3 exf3 6. Nxf3 Bg4 7. h3 Bxf3 8. Qxf3 Nc6 9. Be3 g6 10. Nd5 Bg7 11. Nf4 Qd7 12. d5 Nd8 13. Bd3 0-0 14. g4 e5 15. Nxg6 hxg6 16. Bxg6 Nh5 17. Bf5 Rxf5 18. gxf5 Nf4 19. Qe4 Bh6 20. Rg1+ Kh8 21. Bxf4 Bxf4 22. f6 Qf7 23. Qf5 Bh6 24. Rg6 Qh7 25. Ke2 Nf7 26. Rag1 Rf8 27. R1g4 Bf4 28. Rg7 Qxf5 0-1

[Event "IBM-B"]
[Site "Amsterdam"]
[Date "1970.07.21"]
[Round "7"]
[White "Bednarski, Jacek B"]
[Black "Piket, Joop J"]
[Result "1/2-1/2"]
[ECO "B76"]
[PlyCount "41"]
[EventDate "1970.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 Bd7 7. Bb3 g6 8. f3 Bg7 9. Be3 0-0 10. Qe2 Qa5 11. 0-0-0 Rfc8 12. Kb1 Ne5 13. g4 Rxc3 14. Bd2 Rac8 15. Bxc3 Rxc3 16. bxc3 Qxc3 17. Qd2 Qc5 18. Rhe1 a5 19. g5 Ne8 20. a4 Nc7 21. f4 1/2-1/2

[Event "IBM-B"]
[Site "Amsterdam"]
[Date "1970.07.20"]
[Round "6"]
[White "Piket, Joop J"]
[Black "Prins, Lodewijk"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "68"]
[EventDate "1970.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 4. c3 h6 5. d4 Qf6 6. d5 Nb8 7. Bd3 Ne7 8. Be3 g5 9. h4 g4 10. Nfd2 h5 11. g3 Bh6 12. Nf1 Nd7 13. Nbd2 Qg6 14. Bxh6 Qxh6 15. Ne3 0-0 16. b4 a5 17. a4 c6 18. dxc6 bxc6 19. 0-0 Bb7 20. Nb3 axb4 21. cxb4 Rad8 22. b5 cxb5 23. axb5 d5 24. exd5 Nxd5 25. Nxd5 Bxd5 26. Bh7+ Qxh7 27. Qxd5 Qg7 28. Rfe1 Rfe8 29. Qc6 e4 30. Qc2 Ne5 31. Rxe4 Nf3+ 32. Kg2 Rxe4 33. Qxe4 Qxa1 34. Nxa1 Rd1 0-1

[Event "IBM-B"]
[Site "Amsterdam"]
[Date "1970.07.18"]
[Round "5"]
[White "Westerinen, Heikki MJ"]
[Black "Piket, Joop J"]
[Result "1/2-1/2"]
[ECO "B68"]
[PlyCount "80"]
[EventDate "1970.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 Be7 10. f5 Nxd4 11. Qxd4 exf5 12. Bc4 0-0 13. exf5 Bxf5 14. Rhe1 h6 15. Rxe7 Qxe7 16. Nd5 Qe4 17. Qxe4 Bxe4 18. Bxf6 Bxd5 19. Bxd5 gxf6 20. Bxb7 Ra7 21. Bf3 Rd8 22. b4 Rc7 23. a3 Kf8 24. Rd5 Ke7 25. Ra5 Rdc8 26. Be4 Rc4 27. Bd3 R4c6 28. Kb2 Rg8 29. Rh5 Rh8 30. Kb3 Ke6 31. Be4 Rc7 32. Ra5 Ra7 33. c4 Kd7 34. Kc3 Re8 35. Bd5 Re5 36. Ra4 Rh5 37. h3 Rg5 38. Kd4 Kc7 39. Bf3 Kb6 40. h4 Rf5 1/2-1/2

[Event "IBM-B"]
[Site "Amsterdam"]
[Date "1970.07.17"]
[Round "4"]
[White "Piket, Joop J"]
[Black "Adorjan, Andras"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "104"]
[EventDate "1970.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. Bc4 Qc7 6. Qe2 Nb6 7. Bb3 d3 8. Qe4 Na6 9. Bf4 Qc6 10. Nd2 Nc5 11. Qf3 Qxf3 12. Ngxf3 f6 13. 0-0 d6 14. exd6 e5 15. Be3 Bxd6 16. Rfe1 Nxb3 17. axb3 Bc7 18. Bxb6 Bxb6 19. Nc4 Bc7 20. Rad1 Bd7 21. Rxd3 0-0-0 22. Nd6+ Bxd6 23. Rxd6 Bg4 24. Rxd8+ Rxd8 25. Ra1 a6 26. h3 Bh5 27. g4 Bf7 28. b4 Rd3 29. Nh4 Rxh3 30. Nf5 Be6 31. Ne3 Rh6 32. Kg2 Rg6 33. Kf3 Rg5 34. Rh1 Rxg4 35. Rxh7 Rg5 36. Rh8+ Kc7 37. Re8 Bd7 38. Rf8 Bc6+ 39. Ke2 Kd6 40. Rf7 Ke6 41. Rc7 Rg1 42. Kd2 g5 43. c4 f5 44. b5 axb5 45. cxb5 Bf3 46. Nc4 f4 47. Na5 Rd1+ 48. Kc2 Rd7 49. Rc8 g4 50. Nc4 Bd5 51. Nb6 Be4+ 52. Kc3 Rg7 0-1

[Event "IBM-B"]
[Site "Amsterdam"]
[Date "1970.07.16"]
[Round "3"]
[White "Van Geet, Dick Daniel"]
[Black "Piket, Joop J"]
[Result "0-1"]
[ECO "A01"]
[PlyCount "80"]
[EventDate "1970.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. b3 Nf6 2. Bb2 g6 3. e4 d6 4. g3 Bg7 5. Bg2 0-0 6. Ne2 e5 7. 0-0 c5 8. Na3 Re8 9. Nc4 Nxe4 10. Bxe4 d5 11. Bg2 dxc4 12. bxc4 Nc6 13. Nc3 Be6 14. d3 Rc8 15. Rb1 b6 16. Re1 Qd7 17. Nd5 Rcd8 18. Qf3 Bxd5 19. cxd5 Nb4 20. c4 Nxa2 21. Qd1 Nb4 22. Bc3 a5 23. Rb2 Re7 24. Rbe2 Rde8 25. Qb1 f5 26. h4 h5 27. Bh3 Kh7 28. f3 Qd6 29. Kh2 Bf6 30. Bd2 Bxh4 31. gxh4 e4+ 32. f4 e3 33. Rxe3 Qxf4+ 34. Kg2 Rxe3 35. Bxe3 Rxe3 36. Rxe3 Qxe3 37. d6 Nxd3 38. d7 Nf4+ 39. Kf1 Qxh3+ 40. Kf2 Qxh4+ 0-1

[Event "IBM-B"]
[Site "Amsterdam"]
[Date "1970.07.15"]
[Round "2"]
[White "Piket, Joop J"]
[Black "Marovic, Drazen"]
[Result "1-0"]
[ECO "E70"]
[PlyCount "63"]
[EventDate "1970.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 g6 2. d4 Bg7 3. Nc3 c5 4. d5 d6 5. e4 Nf6 6. Bd3 0-0 7. Bg5 h6 8. Bh4 e5 9. dxe6 Bxe6 10. f4 Re8 11. Nf3 Bg4 12. 0-0 Qd7 13. h3 Bxf3 14. Qxf3 Nc6 15. Rae1 a6 16. Kh1 b5 17. cxb5 Nd4 18. Qd1 axb5 19. e5 dxe5 20. Bxf6 Bxf6 21. Bxb5 Qb7 22. Bxe8 Rxe8 23. Ne4 Be7 24. fxe5 Qxb2 25. Qa4 Rf8 26. Rf2 Qb7 27. Qc4 Qc6 28. Nf6+ Kg7 29. Ref1 Ne6 30. Nh7 Kxh7 31. Rxf7+ Kh8 32. Rxe7 1-0

[Event "IBM-B"]
[Site "Amsterdam"]
[Date "1970.07.14"]
[Round "1"]
[White "Timman, Jan H"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "A04"]
[PlyCount "51"]
[EventDate "1970.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. 0-0 Bg7 5. c3 e5 6. d3 Nge7 7. a3 0-0 8. b4 cxb4 9. axb4 Nxb4 10. cxb4 e4 11. dxe4 Bxa1 12. e5 Nc6 13. Qa4 Bxe5 14. b5 Bg7 15. bxc6 dxc6 16. Rd1 Qb6 17. Be3 Qb5 18. Qxb5 cxb5 19. Bc5 Re8 20. Nd4 Bxd4 21. Bxd4 b4 22. Nd2 a5 23. Ne4 Ra6 24. Nf6+ Rxf6 25. Bxf6 a4 26. Rd4 1-0

[Event "Hoogovens-B"]
[Site "Wijk aan Zee"]
[Date "1970.01.31"]
[Round "15"]
[White "Smederevac, Petar"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "E61"]
[PlyCount "85"]
[EventDate "1970.01.13"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d6 3. g3 g6 4. Bg2 Bg7 5. e3 0-0 6. Nge2 c6 7. 0-0 e5 8. d4 Qc7 9. b4 a5 10. b5 Be6 11. bxc6 bxc6 12. Qa4 Nfd7 13. d5 Nb6 14. Qd1 cxd5 15. Nxd5 Nxd5 16. cxd5 Bd7 17. Ba3 Na6 18. Qd2 Rfc8 19. Rac1 Qb6 20. Rb1 Nb4 21. Rfc1 Bf8 22. Bf1 Bf5 23. Rb3 Rc5 24. Nc3 Qb7 25. e4 Bd7 26. Ne2 Qa7 27. Rb2 f5 28. Rxc5 Qxc5 29. Bxb4 axb4 30. Rc2 Qa5 31. Bh3 Ba4 32. Rb2 fxe4 33. Be6+ Kh8 34. h4 Bb5 35. Nc1 Bc4 36. Rc2 Qb5 37. h5 Bd3 38. Rc7 Qb6 39. Rc6 Qd4 40. hxg6 e3 41. Qxd3 exf2+ 42. Kg2 f1Q+ 43. Kxf1 1-0

[Event "Hoogovens-B"]
[Site "Wijk aan Zee"]
[Date "1970.01.29"]
[Round "14"]
[White "Piket, Joop J"]
[Black "Van Geet, Dick Daniel"]
[Result "1-0"]
[ECO "A42"]
[PlyCount "67"]
[EventDate "1970.01.13"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. c4 Nc6 4. Be3 d6 5. Nc3 e5 6. d5 Nd4 7. Nge2 Nxe2 8. Bxe2 f5 9. exf5 gxf5 10. f4 Nf6 11. fxe5 dxe5 12. Bc5 Qd7 13. Bh5+ Kd8 14. d6 c6 15. Bf2 Qe6 16. Be2 Bd7 17. Bh4 Ke8 18. Qd2 Rf8 19. 0-0-0 Kf7 20. Kb1 Kg8 21. Ka1 Kh8 22. Bg5 Rg8 23. h4 a6 24. Na4 Ne4 25. Qe3 b5 26. Nb6 Rae8 27. g4 Nxg5 28. hxg5 Rd8 29. Rxh7+ Kxh7 30. Qh3+ Bh6 31. gxf5 Rg6 32. fxe6 Bxe6 33. Qh4 Rxg5 34. Rh1 1-0

[Event "Hoogovens-B"]
[Site "Wijk aan Zee"]
[Date "1970.01.28"]
[Round "13"]
[White "Hartoch, Robert G"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "E65"]
[PlyCount "79"]
[EventDate "1970.01.13"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 d6 5. d4 0-0 6. Nf3 Nbd7 7. 0-0 c5 8. d5 a6 9. a4 b6 10. e4 Rb8 11. Bf4 h6 12. Re1 Ne8 13. Qc2 Nc7 14. e5 dxe5 15. Nxe5 Nxe5 16. Bxe5 Bxe5 17. Rxe5 Ne8 18. Rae1 Rb7 19. Bf1 Nd6 20. Bd3 Kg7 21. f3 Bf5 22. g4 Bxd3 23. Qxd3 Rd7 24. Kg2 Qc7 25. Qe2 Re8 26. b3 Qb7 27. h4 Qc7 28. Kh3 Qb7 29. h5 Qc7 30. Qd3 Rg8 31. hxg6 fxg6 32. Re6 Kf7 33. Qe3 h5 34. Qg5 hxg4+ 35. fxg4 Nf5 36. gxf5 Rh8+ 37. Kg4 gxf5+ 38. Qxf5+ Ke8 39. d6 Rg8+ 40. Kh3 1-0

[Event "Hoogovens-B"]
[Site "Wijk aan Zee"]
[Date "1970.01.27"]
[Round "12"]
[White "Piket, Joop J"]
[Black "Forintos, Gyozo Victor"]
[Result "0-1"]
[ECO "B35"]
[PlyCount "102"]
[EventDate "1970.01.13"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. f3 Qb6 9. 0-0 Qxb2 10. Ncb5 Qb4 11. Qe2 Qa5 12. Qf2 d6 13. Rab1 Ne5 14. Be2 Qd8 15. h3 Ned7 16. Rfd1 a6 17. Na3 Qc7 18. c4 Nc5 19. g4 Nfd7 20. h4 Na4 21. Rdc1 Ndc5 22. Qg2 e5 23. Nb3 Ne6 24. Bf1 Bd7 25. Qd2 Bc6 26. Nc2 Qe7 27. Nb4 Rfc8 28. g5 Nf4 29. Nxc6 Rxc6 30. Qb4 b5 31. cxb5 Rxc1 32. Rxc1 axb5 33. Qxb5 h6 34. Qc6 Qd8 35. Qc7 Qxc7 36. Rxc7 Ne6 37. Rc2 hxg5 38. hxg5 Bf8 39. Bh3 Nec5 40. Nxc5 Nxc5 41. Bf1 Ne6 42. Bc4 Be7 43. Bxe6 fxe6 44. Kf2 d5 45. Ke2 Ra4 46. exd5 exd5 47. Bc1 Kf7 48. Kd3 Ke6 49. Rg2 Kf5 50. Kc3 Rh4 51. Kb3 Rh3 0-1

[Event "Hoogovens-B"]
[Site "Wijk aan Zee"]
[Date "1970.01.26"]
[Round "11"]
[White "Piket, Joop J"]
[Black "Drimer, Dolfi"]
[Result "0-1"]
[ECO "A42"]
[PlyCount "88"]
[EventDate "1970.01.13"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c6 2. d4 g6 3. c4 Bg7 4. Nc3 d6 5. Be3 Nd7 6. f3 a6 7. Bd3 e5 8. d5 Bh6 9. Bxh6 Qh4+ 10. Kf1 Qxh6 11. dxc6 bxc6 12. Bc2 Ke7 13. Qe2 Ngf6 14. Rd1 Rd8 15. Na4 Nh5 16. Qd3 g5 17. Ne2 Bb7 18. Qa3 c5 19. Kf2 Rab8 20. b3 Nf8 21. Nxc5 dxc5 22. Qxc5+ Ke8 23. Qxe5+ Ne6 24. Nd4 Qg7 25. Qxg7 Nhxg7 26. Ne2 Ke7 27. Ke3 h6 28. g3 Nh5 29. Rxd8 Rxd8 30. b4 Nf6 31. Rc1 Nd7 32. f4 gxf4+ 33. gxf4 a5 34. a3 Ra8 35. f5 Nd8 36. b5 Rc8 37. Kd4 f6 38. Nf4 Nf7 39. Nd3 Nd6 40. Nb2 Ne5 41. Bd3 Nxb5+ 42. Ke3 Nxa3 43. Rc3 Nxd3 44. Kxd3 Nxc4 0-1

[Event "Hoogovens-B"]
[Site "Wijk aan Zee"]
[Date "1970.01.24"]
[Round "10"]
[White "Day, Lawrence A"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "E88"]
[PlyCount "165"]
[EventDate "1970.01.13"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c6 2. d4 g6 3. c4 Bg7 4. Nc3 d6 5. Be3 Nf6 6. f3 0-0 7. Qd2 e5 8. d5 cxd5 9. cxd5 Ne8 10. Bd3 a6 11. Nge2 Nd7 12. 0-0 f5 13. exf5 gxf5 14. f4 e4 15. Bc2 Ndf6 16. h3 Kh8 17. Kh2 Rg8 18. g3 Qe7 19. b4 Bd7 20. a4 Qf7 21. Rac1 Qh5 22. Kg2 Qh6 23. Bb3 Nh5 24. Nd1 Bf6 25. Kh2 Rg7 26. Rg1 Bd8 27. Bd4 Nef6 28. Rg2 Rg8 29. Ne3 Ng7 30. Kg1 Be8 31. g4 Qh4 32. g5 Nfh5 33. Nxf5 Qxh3 34. Nxg7 Nxg7 35. Rc3 Qd7 36. Rh2 Bg6 37. Rch3 e3 38. Qxe3 Re8 39. Qf3 Qf5 40. Kf2 Rc8 41. a5 Kg8 42. Rh1 Rf8 43. Bxg7 Kxg7 44. Nd4 Qf7 45. Ne6+ Kg8 46. Nxf8 Qxf8 47. Ra1 Qg7 48. Rd1 Bxg5 49. Qg4 Qb2+ 50. Kg1 Rc3 51. fxg5 Qxb3 52. Rf1 Bf7 53. Rxc3 Qxc3 54. Qf4 Qc7 55. Rc1 Qd7 56. Qc4 Qe7 57. Kf2 Kg7 58. Qd4+ Kg6 59. Re1 Qd8 60. Qe4+ Kg7 61. Re3 Qc7 62. Qf5 Qc4 63. Qf6+ Kg8 64. Qd8+ Kg7 65. Qf6+ Kg8 66. Qxd6 Qh4+ 67. Qg3 Qxb4 68. Qb8+ Kg7 69. Qe5+ Kg8 70. d6 Qh4+ 71. Rg3 Qh2+ 72. Ke3 Qh1 73. Rf3 Qe1+ 74. Kf4 Qh4+ 75. Kf5 Qc4 76. g6 hxg6+ 77. Kg5 Qc1+ 78. Rf4 Qh1 79. Rh4 Qg2+ 80. Kf6 Qf2+ 81. Qf4 Qb2+ 82. Qd4 Qb5 83. Rh8+ 1-0

[Event "Hoogovens-B"]
[Site "Wijk aan Zee"]
[Date "1970.01.23"]
[Round "9"]
[White "Piket, Joop J"]
[Black "Andersson, Ulf"]
[Result "1/2-1/2"]
[ECO "B45"]
[PlyCount "110"]
[EventDate "1970.01.13"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 cxd4 5. Nxd4 e6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 Nxd5 10. Nxd5 exd5 11. Bd3 Qe7+ 12. Qe2 Qxe2+ 13. Bxe2 Bf5 14. c3 0-0-0 15. Be3 Kb8 16. 0-0 d4 17. cxd4 Nxd4 18. Bc4 f6 19. Rad1 Nc2 20. Bf4+ Ka8 21. Bd6 a6 22. Rd2 Rhe8 23. Bb3 Rc8 24. h3 Re1 25. Rxe1 Nxe1 26. Re2 Nd3 27. Re7 Rd8 28. Bc7 Rd7 29. Re8+ Ka7 30. Bb8+ Kb6 31. g4 Nc5 32. Bc4 Bd3 33. Bg8 Bg6 34. Rc8 a5 35. b3 Bc2 36. Ba7+ Kxa7 37. Rxc5 Rd1+ 38. Kh2 Rd2 39. Rxa5+ Kb6 40. Rd5 Rxf2+ 41. Kg3 Re2 42. Rd7 g5 43. Rd6+ Kc7 44. Rxf6 Be4 45. h4 Rg2+ 46. Kh3 h5 47. hxg5 Rxg4 48. Rf7+ Kd6 49. Rg7 Ke5 50. Bf7 Bg2+ 51. Kh2 Be4 52. Kh3 Bf5 53. Kh2 Be4 54. Kh3 Bf5 55. Kh2 Be4 1/2-1/2

[Event "Hoogovens-B"]
[Site "Wijk aan Zee"]
[Date "1970.01.22"]
[Round "8"]
[White "Honfi, Karoly"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "65"]
[EventDate "1970.01.13"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 Be6 9. Nc4 b5 10. Bxf6 gxf6 11. Ne3 Bh6 12. Ncd5 Bxe3 13. Nxe3 Ne7 14. a4 b4 15. Qf3 Nc6 16. Bd3 Nd4 17. Qh5 Ke7 18. 0-0 Qg8 19. f4 exf4 20. Nd5+ Kf8 21. Qh6+ Qg7 22. Qxf4 Qg5 23. Qxd6+ Kg7 24. Qxb4 Nc6 25. Qc3 Bxd5 26. exd5 Ne5 27. Bf5 Rhd8 28. Rad1 Kh8 29. Qh3 h6 30. Rd4 Rab8 31. b3 a5 32. d6 Rb4 33. c4 1-0

[Event "Hoogovens-B"]
[Site "Wijk aan Zee"]
[Date "1970.01.20"]
[Round "7"]
[White "Piket, Joop J"]
[Black "Van Scheltinga, Theo D"]
[Result "1/2-1/2"]
[ECO "A19"]
[PlyCount "55"]
[EventDate "1970.01.13"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 Nf6 3. e4 c5 4. e5 Ng8 5. Nf3 Nc6 6. d4 cxd4 7. Nxd4 Nxe5 8. Bf4 Ng6 9. Bg3 f5 10. Bd3 Bc5 11. Ndb5 d6 12. Qa4 Bd7 13. b4 a6 14. bxc5 axb5 15. Qb3 bxc4 16. Qxc4 d5 17. Qb3 N8e7 18. Bd6 Bc6 19. 0-0 0-0 20. Rfe1 Rf6 21. f3 Rc8 22. Bg3 h5 23. Rad1 Qa5 24. Bf2 Nf4 25. Bf1 h4 26. h3 Nh5 27. Bd3 Nf4 28. Bf1 1/2-1/2

[Event "Hoogovens-B"]
[Site "Wijk aan Zee"]
[Date "1970.01.19"]
[Round "6"]
[White "Antunac, Goran"]
[Black "Piket, Joop J"]
[Result "0-1"]
[ECO "A53"]
[PlyCount "62"]
[EventDate "1970.01.13"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 d6 3. d4 c5 4. Nc3 Nbd7 5. d5 e5 6. dxe6 fxe6 7. g3 Nb6 8. Bg2 Be7 9. 0-0 0-0 10. Nd2 d5 11. Qb3 d4 12. Nce4 e5 13. Qd3 Bf5 14. Nxf6+ Rxf6 15. Be4 Qd7 16. Nf3 Bxe4 17. Qxe4 Nxc4 18. b3 Nb6 19. Nxe5 Qd5 20. Qxd5+ Nxd5 21. Bg5 Re6 22. Bxe7 Rxe5 23. Bxc5 Nc3 24. Bb4 Rxe2 25. Bxc3 dxc3 26. Rfe1 Rd2 27. Rad1 Rxa2 28. Rd7 Rd2 29. Rxb7 c2 30. Rc7 Rd1 31. Kf1 Re8 0-1

[Event "Hoogovens-B"]
[Site "Wijk aan Zee"]
[Date "1970.01.18"]
[Round "5"]
[White "Piket, Joop J"]
[Black "Medina Garcia, Antonio Angel"]
[Result "0-1"]
[ECO "C56"]
[PlyCount "87"]
[EventDate "1970.01.13"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 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. Qe1 Qxe1+ 15. Raxe1 Kd7 16. Rxe8 Rxe8 17. Rxe8 Kxe8 18. a3 Kd7 19. Kf1 Ke6 20. Ke2 Kd5 21. Kd3 b5 22. g3 a5 23. Bd2 a4 24. c3 Ne5+ 25. Nxe5 Bxe5 26. cxd4 Bxd4 27. Bc3 Bxf2 28. Bxg7 c5 29. Bc3 Bg1 30. h3 Bf2 31. g4 Bh4 32. Bg7 Bg5 33. Bc3 c4+ 34. Ke2 Ke4 35. Bg7 Bd8 36. Bc3 Bb6 37. Bg7 Bd4 38. Bxd4 Kxd4 39. Kd2 Ke4 40. Kc3 Kf4 41. Kb4 Kg3 42. Kxb5 Kxh3 43. g5 Kh4 44. Kxa4 0-1

[Event "Hoogovens-B"]
[Site "Wijk aan Zee"]
[Date "1970.01.16"]
[Round "4"]
[White "Sokolov, Vladimir"]
[Black "Piket, Joop J"]
[Result "1/2-1/2"]
[ECO "E61"]
[PlyCount "55"]
[EventDate "1970.01.13"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. e3 g6 4. Nc3 Bg7 5. Nf3 0-0 6. Be2 b6 7. 0-0 Bb7 8. d5 d6 9. e4 e5 10. Ne1 Ne8 11. f4 exf4 12. Bxf4 Nd7 13. Qd2 Ne5 14. b3 Bc8 15. Nd3 Qe7 16. Rae1 Bd7 17. Nd1 a6 18. N1f2 b5 19. Nxe5 Bxe5 20. Kh1 f6 21. Bg4 Ng7 22. Bxd7 Qxd7 23. Bxe5 fxe5 24. Qg5 Qd8 25. Qh6 Nh5 26. g3 Qd7 27. Qc1 Rf7 28. Kg2 1/2-1/2

[Event "Hoogovens-B"]
[Site "Wijk aan Zee"]
[Date "1970.01.15"]
[Round "3"]
[White "Piket, Joop J"]
[Black "Clarke, Peter Hugh"]
[Result "1/2-1/2"]
[ECO "C54"]
[PlyCount "43"]
[EventDate "1970.01.13"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. 0-0 Bb6 7. h3 Be6 8. Bb5 Bd7 9. Re1 Ne7 10. Bc4 Ng6 11. a4 a5 12. b4 0-0 13. Bb3 c6 14. Nbd2 Bc7 15. Rb1 Re8 16. Nf1 h6 17. Bc2 axb4 18. cxb4 d5 19. Ng3 Qc8 20. Nh2 Be6 21. Nh5 Nxh5 22. Qxh5 1/2-1/2

[Event "Hoogovens-B"]
[Site "Wijk aan Zee"]
[Date "1970.01.14"]
[Round "2"]
[White "Maeder, Karl Heinz"]
[Black "Piket, Joop J"]
[Result "1/2-1/2"]
[ECO "B61"]
[PlyCount "26"]
[EventDate "1970.01.13"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 Bd7 7. Qd2 Rc8 8. 0-0-0 Nxd4 9. Qxd4 Qa5 10. f4 Rxc3 11. bxc3 e5 12. Qb4 Qxb4 13. cxb4 Nxe4 1/2-1/2

[Event "Hoogovens-B"]
[Site "Wijk aan Zee"]
[Date "1970.01.13"]
[Round "1"]
[White "Piket, Joop J"]
[Black "Doda, Zbigniew"]
[Result "1/2-1/2"]
[ECO "E70"]
[PlyCount "70"]
[EventDate "1970.01.13"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 d6 5. e4 Bg7 6. Bd3 0-0 7. Bg5 a6 8. a4 e6 9. Qd2 exd5 10. exd5 Nbd7 11. f4 Qa5 12. Ra2 Re8+ 13. Nge2 Ng4 14. Ne4 Qxd2+ 15. Kxd2 Rxe4 16. Bxe4 Nf2 17. Ng3 Nxh1 18. Nxh1 Nf6 19. Bf3 Bd7 20. Nf2 h6 21. Bh4 Re8 22. Ra3 Rb8 23. a5 b5 24. axb6 Rxb6 25. b3 Kf8 26. Ne4 Nxe4+ 27. Bxe4 Ke8 28. Kc2 Bc8 29. Bd3 h5 30. Be1 Bf6 31. Ba5 Rb7 32. Bc3 Bxc3 33. Kxc3 Re7 34. Ra1 Kd8 35. Kd2 Kc7 1/2-1/2

[Event "NED-ch24"]
[Site "Leeuwarden"]
[Date "1969.04.12"]
[Round "11"]
[White "Kramer, Haije J"]
[Black "Piket, Joop J"]
[Result "1/2-1/2"]
[ECO "A48"]
[PlyCount "109"]
[EventDate "1969.03.31"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. d4 d5 5. c4 c6 6. e3 0-0 7. Be2 Bf5 8. 0-0 h6 9. Ne5 g5 10. Nc3 e6 11. Bd3 Bxd3 12. Qxd3 Nfd7 13. Nxd7 Nxd7 14. cxd5 exd5 15. Ba3 Re8 16. Ne2 Nf6 17. f3 Re6 18. Ng3 Qa5 19. Bb2 Rae8 20. Bc3 Qa3 21. Nf5 Bf8 22. g4 a5 23. Qd2 Ra8 24. Rf2 Ne8 25. h4 Nd6 26. hxg5 hxg5 27. Rh2 Nxf5 28. gxf5 Rh6 29. e4 f6 30. e5 Qe7 31. Rxh6 Bxh6 32. a4 Kg7 33. Kg2 Qd7 34. e6 Qc7 35. Rh1 Rh8 36. Bxa5 b6 37. Bc3 g4 38. Qf2 Qf4 39. fxg4 Qe4+ 40. Qf3 Qc2+ 41. Kg3 Bf4+ 42. Kxf4 Rxh1 43. Qxh1 Qxc3 44. Qd1 c5 45. dxc5 Qe5+ 46. Kf3 Qe4+ 47. Kf2 bxc5 48. Qe2 Qd4+ 49. Kf3 Kf8 50. Qe3 Qd1+ 51. Kg3 d4 52. Qf3 Qe1+ 53. Kg2 Qd2+ 54. Kf1 d3 55. Qa8+ 1/2-1/2

[Event "NED-ch24"]
[Site "Leeuwarden"]
[Date "1969.04.10"]
[Round "10"]
[White "Piket, Joop J"]
[Black "De Ruiter, Tom"]
[Result "1/2-1/2"]
[ECO "B25"]
[PlyCount "19"]
[EventDate "1969.03.31"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Nge2 e5 4. d3 g6 5. g3 Bg7 6. Bg2 d6 7. 0-0 h5 8. f4 Nge7 9. Be3 Nd4 10. Qd2 1/2-1/2

[Event "NED-ch24"]
[Site "Leeuwarden"]
[Date "1969.04.09"]
[Round "9"]
[White "Piket, Joop J"]
[Black "Timman, Jan H"]
[Result "0-1"]
[ECO "B25"]
[PlyCount "86"]
[EventDate "1969.03.31"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nc6 4. Bg2 g6 5. d3 Bg7 6. Nh3 b6 7. 0-0 Bb7 8. f4 Qd7 9. Be3 Nd4 10. Qd2 f5 11. Nd1 Nf6 12. c3 Nc6 13. Ndf2 0-0 14. exf5 gxf5 15. Ng5 h6 16. Nf3 Nd5 17. Nh4 Nxe3 18. Qxe3 Rae8 19. Rae1 Rf6 20. Bd5+ e6 21. Nxf5 Rxf5 22. Bxe6+ Rxe6 23. Qxe6+ Qf7 24. Qxf7+ Kxf7 25. Ne4 Rd5 26. Rd1 Ba6 27. Nf2 b5 28. Rfe1 b4 29. c4 Rf5 30. Ne4 Bf8 31. Rf1 Ke7 32. Rde1 Kd7 33. b3 Nd4 34. Rf2 d5 35. Nd2 Bg7 36. Nf1 dxc4 37. dxc4 Bb7 38. Ne3 Rf7 39. Rd1 Kc7 40. Nd5+ Kd6 41. a3 Bxd5 42. cxd5 bxa3 43. Ra2 Nb5 0-1

[Event "NED-ch24"]
[Site "Leeuwarden"]
[Date "1969.04.08"]
[Round "8"]
[White "Zuidema, Coen"]
[Black "Piket, Joop J"]
[Result "1/2-1/2"]
[ECO "B61"]
[PlyCount "91"]
[EventDate "1969.03.31"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 Bd7 7. Qd2 Rc8 8. 0-0-0 Nxd4 9. Qxd4 Qa5 10. f4 Rxc3 11. bxc3 e5 12. Qb4 Qxb4 13. cxb4 Nxe4 14. Re1 Nxg5 15. fxg5 Be7 16. h4 h6 17. gxh6 Rxh6 18. h5 Bg5+ 19. Kb1 Bd2 20. Re4 f5 21. Rc4 Kd8 22. c3 Bg5 23. b5 Bxb5 24. Rb4 Bc6 25. Rh3 Kc7 26. c4 f4 27. Rh2 Bf6 28. Kc2 g6 29. Be2 Be8 30. Bf3 b6 31. Kd3 gxh5 32. Be4 h4 33. Rb3 Rh8 34. Bd5 Rh7 35. Be4 Rg7 36. Ke2 Bh5+ 37. Kd2 Bg4 38. Rh1 Be6 39. Re1 Kb8 40. Rc3 Rc7 41. Bd5 Bxd5 42. cxd5 Rg7 43. Re2 e4 44. Rc4 e3+ 45. Kd3 Be5 46. Rc1 1/2-1/2

[Event "NED-ch24"]
[Site "Leeuwarden"]
[Date "1969.04.07"]
[Round "7"]
[White "Piket, Joop J"]
[Black "Kuijpers, Frans"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "96"]
[EventDate "1969.03.31"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 Nc6 5. Bc4 Nb6 6. Bxf7+ Kxf7 7. dxc5 Nxe5 8. cxb6 Qxb6 9. Nf3 Nxf3+ 10. Qxf3+ Qf6 11. Qe2 e6 12. Nd2 Be7 13. 0-0 Rf8 14. f4 Kg8 15. Ne4 Qg6 16. Ng3 b6 17. Be3 Bb7 18. Bd4 Bh4 19. Qe3 Rf7 20. Rf2 Re8 21. a4 d6 22. a5 e5 23. fxe5 dxe5 24. Qe2 Rxf2 25. Bxf2 Qc6 26. Be3 bxa5 27. Rxa5 Rd8 28. Ra1 a5 29. Nf5 Bf6 30. h3 Rd3 31. Re1 Kh8 32. Qf2 a4 33. Ng3 a3 34. bxa3 Rxc3 35. Nh5 Rxa3 36. Nxf6 gxf6 37. Rc1 Qe6 38. Rc2 Ra8 39. Bc5 Rg8 40. Qh4 Rg6 41. Rd2 Qg8 42. g4 Qc8 43. Qf2 h5 44. Kh2 hxg4 45. Qh4+ Kg7 46. Rc2 Qf5 47. Rf2 g3+ 48. Qxg3 Rxg3 0-1

[Event "NED-ch24"]
[Site "Leeuwarden"]
[Date "1969.04.05"]
[Round "6"]
[White "Etmans, Maarten D"]
[Black "Piket, Joop J"]
[Result "0-1"]
[ECO "B08"]
[PlyCount "60"]
[EventDate "1969.03.31"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Be2 Nf6 5. 0-0 0-0 6. Nc3 c6 7. a4 Nbd7 8. h3 e5 9. Be3 Qe7 10. dxe5 dxe5 11. Rb1 Nc5 12. Nd2 Rd8 13. Qe1 Ne6 14. Nc4 Nd4 15. Bd1 b6 16. b4 Ba6 17. b5 cxb5 18. axb5 Bb7 19. Bg5 Qc5 20. Bxf6 Bxf6 21. Ne3 Bg5 22. Na4 Qc7 23. c3 Bxe4 24. Rb4 Bd3 25. cxd4 exd4 26. Bf3 dxe3 27. fxe3 Rab8 28. Rf2 Be7 29. Rd4 Rxd4 30. exd4 Bh4 0-1

[Event "NED-ch24"]
[Site "Leeuwarden"]
[Date "1969.04.04"]
[Round "5"]
[White "Piket, Joop J"]
[Black "Langeweg, Kick"]
[Result "1/2-1/2"]
[ECO "A19"]
[PlyCount "47"]
[EventDate "1969.03.31"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. e4 c5 4. e5 Ng8 5. Nf3 Nc6 6. d4 cxd4 7. Nxd4 Nxe5 8. Bf4 d6 9. Qd2 a6 10. 0-0-0 Be7 11. Nb3 Ng6 12. Bg3 Nh6 13. Bd3 f5 14. Kb1 0-0 15. f3 Nf7 16. Rhe1 Bd7 17. f4 Re8 18. Bf2 Nf8 19. h3 Nh6 20. Be2 Qc7 21. g4 Ng6 22. c5 d5 23. Nxd5 exd5 24. Qxd5+ 1/2-1/2

[Event "NED-ch24"]
[Site "Leeuwarden"]
[Date "1969.04.03"]
[Round "4"]
[White "Ree, Hans"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "A54"]
[PlyCount "81"]
[EventDate "1969.03.31"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d6 3. d4 e5 4. Nf3 Qe7 5. Bg5 c6 6. e4 h6 7. Bh4 Bg4 8. Be2 g5 9. Bg3 Nbd7 10. h3 Bh5 11. d5 Nc5 12. Qc2 cxd5 13. cxd5 Bg7 14. Bb5+ Ncd7 15. Nd2 0-0 16. f3 Bg6 17. Bf2 a6 18. Be2 Rac8 19. g4 h5 20. a4 Rfe8 21. a5 Nxd5 22. Nxd5 Rxc2 23. Nxe7+ Rxe7 24. Be3 hxg4 25. hxg4 f6 26. Nc4 Bf7 27. Nxd6 Rxb2 28. Rc1 Nf8 29. Nxf7 Kxf7 30. Bc5 Rc7 31. Bc4+ Kg6 32. Ba3 Rg2 33. Be2 Rd7 34. Kf1 Rd2 35. Re1 Rgxe2 36. Rxe2 Rd3 37. Bxf8 Bxf8 38. Kg2 Rb3 39. Rd1 Rb5 40. Rd7 b6 41. axb6 1-0

[Event "NED-ch24"]
[Site "Leeuwarden"]
[Date "1969.04.02"]
[Round "3"]
[White "Piket, Joop J"]
[Black "Scholl, Eddie C"]
[Result "0-1"]
[ECO "A29"]
[PlyCount "80"]
[EventDate "1969.03.31"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Bg2 0-0 5. Nf3 Nc6 6. d3 e4 7. Ng5 exd3 8. exd3 Re8+ 9. Be3 d5 10. cxd5 Bg4 11. Qd2 Bxc3 12. bxc3 Nxd5 13. Ne4 f5 14. Nc5 b6 15. c4 Nxe3 16. fxe3 Nd4 17. Nb3 f4 18. Bd5+ Qxd5 19. cxd5 Nf3+ 20. Kd1 Nxd2+ 21. Kxd2 fxe3+ 22. Kc3 Bf3 23. Rhf1 Bxd5 24. Nd4 Rad8 25. a4 c5 26. Nc2 Bf7 27. Rf3 Bg6 28. Ne1 Rd4 29. h3 Re6 30. Ra2 a6 31. Ra1 h6 32. Rf4 Red6 33. Rf3 Bxd3 34. Rxe3 Bg6 35. Ra2 b5 36. axb5 axb5 37. Ra8+ Kh7 38. Rc8 b4+ 39. Kb3 Bf7+ 40. Ka4 b3+ 0-1

[Event "NED-ch24"]
[Site "Leeuwarden"]
[Date "1969.04.01"]
[Round "2"]
[White "Van Baarle, John"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "A56"]
[PlyCount "63"]
[EventDate "1969.03.31"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Nf3 0-0 7. h3 Ne8 8. g4 Nd7 9. Bd3 g6 10. Bh6 Ng7 11. Qd2 Nf6 12. 0-0-0 Kh8 13. Rdg1 Ng8 14. h4 Nxh6 15. Qxh6 f6 16. Be2 Rf7 17. g5 Nf5 18. exf5 Bf8 19. fxg6 Bxh6 20. gxf7 Bg7 21. h5 fxg5 22. h6 Bf6 23. Ne4 Bf5 24. Nfxg5 Qe7 25. Rg3 Bxg5+ 26. Nxg5 e4 27. Bh5 Qf6 28. Bd1 Qd4 29. Rhg1 Qxc4+ 30. Bc2 e3 31. f8Q+ Rxf8 32. Nf7+ 1-0

[Event "NED-ch24"]
[Site "Leeuwarden"]
[Date "1969.03.31"]
[Round "1"]
[White "Piket, Joop J"]
[Black "Donner, Jan Hein"]
[Result "0-1"]
[ECO "E70"]
[PlyCount "80"]
[EventDate "1969.03.31"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Bg5 c5 6. d5 d6 7. f4 Qb6 8. Qd2 e6 9. Bd3 exd5 10. exd5 Na6 11. Nge2 Bd7 12. 0-0 Nb4 13. Bb1 h6 14. Bh4 Rae8 15. a3 Na6 16. h3 Nc7 17. Kh1 Re7 18. Bf2 Qa6 19. Bd3 b5 20. cxb5 Qb7 21. f5 Ncxd5 22. Nxd5 Nxd5 23. Bg3 Ne3 24. Rf3 Nxf5 25. Bxf5 Bxf5 26. Nc3 Re6 27. Bf4 h5 28. Rd1 Rfe8 29. Bh6 Bxh6 30. Qxh6 Re1+ 31. Rxe1 Rxe1+ 32. Kh2 Re5 33. a4 d5 34. Qf4 Qe7 35. a5 d4 36. Na4 Re2 37. b6 axb6 38. axb6 Be4 39. Rf2 Rxf2 40. Qxf2 Bc6 0-1

[Event "NED-chT"]
[Site "Netherlands"]
[Date "1969.??.??"]
[Round "?"]
[White "Kerkhoff, Leo"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "B10"]
[PlyCount "49"]
[EventDate "1969.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. d3 g6 3. Nd2 Bg7 4. g3 d5 5. Bg2 Nh6 6. Ngf3 0-0 7. 0-0 f5 8. exd5 cxd5 9. Nb3 Nf7 10. d4 Nd7 11. Re1 Nf6 12. Ng5 Nxg5 13. Bxg5 Ne4 14. Bf4 a5 15. f3 a4 16. fxe4 axb3 17. exd5 bxa2 18. c3 Qb6 19. Rxe7 Qxb2 20. Qe1 Ra5 21. d6 Qb5 22. Bf1 Qd5 23. Rc7 Kh8 24. Qe7 Rg8 25. Be5 1-0

[Event "NED-chT"]
[Site "Netherlands"]
[Date "1969.??.??"]
[Round "?"]
[White "Piket, Joop J"]
[Black "Boersma, Paul"]
[Result "0-1"]
[ECO "B13"]
[PlyCount "86"]
[EventDate "1969.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Ne2 e6 8. Qb3 Qd7 9. Ng3 Nh5 10. Nxh5 Bxh5 11. 0-0 0-0-0 12. Bb5 Bd6 13. Bxd6 Qxd6 14. Bxc6 Qxc6 15. Re1 Kb8 16. a4 Rc8 17. Na3 Qd7 18. a5 Bg6 19. Re3 Rc6 20. Qa4 Rhc8 21. b4 a6 22. Qb3 Qc7 23. Rc1 Be4 24. Qa4 Qf4 25. b5 Qg5 26. g3 Rxc3 27. Rcxc3 Rxc3 28. f4 Rc1+ 29. Kf2 Qh5 30. h4 Qd1 31. Qxd1 Rxd1 32. b6 Rd2+ 33. Ke1 Rxd4 34. Rc3 Ra4 35. Rc7 Rxa3 36. Rxf7 Kc8 37. Rxg7 Rxa5 38. Rc7+ Kb8 39. Re7 Rc5 40. Rxe6 a5 41. g4 a4 42. f5 Rc6 43. Re8+ Rc8 0-1

[Event "NED-chT"]
[Site "Netherlands"]
[Date "1969.??.??"]
[Round "?"]
[White "Piket, Joop J"]
[Black "Ree, Hans"]
[Result "1-0"]
[ECO "E53"]
[PlyCount "65"]
[EventDate "1969.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 d5 6. Nf3 c5 7. a3 Ba5 8. 0-0 Nbd7 9. cxd5 exd5 10. h3 Re8 11. Bd2 a6 12. Rc1 Bc7 13. Bb1 c4 14. Re1 h6 15. Qc2 b5 16. Nxd5 Nxd5 17. Qh7+ Kf8 18. e4 N7f6 19. Qh8+ Ke7 20. exd5+ Be6 21. Rxe6+ fxe6 22. Qxg7+ Kd6 23. Bf4+ Kxd5 24. Bxc7 Qe7 25. Qxe7 Rxe7 26. Be5 Rf8 27. Re1 Kc6 28. Bg3 Ref7 29. Re5 Nd5 30. Bg6 Re7 31. Be4 Ree8 32. Rh5 a5 33. Ne5+ 1-0

[Event "Hoogovens-B"]
[Site "Beverwijk"]
[Date "1965.01.24"]
[Round "11"]
[White "Crabbendam, Henrico"]
[Black "Piket, Joop J"]
[Result "0-1"]
[ECO "B59"]
[PlyCount "100"]
[EventDate "1965.01.11"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. Be3 Be6 9. Qd2 a5 10. a3 0-0 11. Rd1 h6 12. f3 Qc8 13. Nd5 Bxd5 14. exd5 a4 15. Nc1 Nb8 16. 0-0 Nbd7 17. c4 Nh7 18. Nd3 f5 19. f4 e4 20. Nf2 Bf6 21. g4 g6 22. gxf5 gxf5 23. Kh1 Nc5 24. Rg1+ Kh8 25. Rg6 Nb3 26. Qb4 Qd7 27. Rdg1 Rg8 28. Bd1 Nd4 29. c5 Rxg6 30. Rxg6 dxc5 31. Qxc5 Rc8 32. Qxd4 Bxd4 33. Bxd4+ Nf6 34. Bxf6+ Kh7 35. Rg7+ Qxg7 36. Bxg7 Kxg7 37. Bxa4 e3 38. Nd3 e2 39. Kg2 Rc4 40. Bb3 Rxf4 41. d6 Kf6 42. d7 Ke7 43. Ba4 Rf1 44. Kg3 Rd1 45. Kf2 Rxd3 46. Kxe2 Rh3 47. b3 Rxh2+ 48. Kf3 Rh4 49. Bb5 Rh3+ 50. Kf4 Rxb3 0-1

[Event "Hoogovens-B"]
[Site "Beverwijk"]
[Date "1965.01.23"]
[Round "10"]
[White "Piket, Joop J"]
[Black "Flesch, Janos"]
[Result "0-1"]
[ECO "E29"]
[PlyCount "36"]
[EventDate "1965.01.11"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 0-0 7. Bd3 Nc6 8. Ne2 b6 9. e4 Ne8 10. d5 Na5 11. Ng3 Ba6 12. Qe2 f6 13. Nf1 Nd6 14. Ne3 exd5 15. cxd5 Bxd3 16. Qxd3 c4 17. Qc2 Qe7 18. 0-0 Qxe4 0-1

[Event "Hoogovens-B"]
[Site "Beverwijk"]
[Date "1965.01.21"]
[Round "9"]
[White "Kieninger, Georg"]
[Black "Piket, Joop J"]
[Result "1/2-1/2"]
[ECO "B38"]
[PlyCount "94"]
[EventDate "1965.01.11"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d6 5. c4 Nf6 6. Nc3 g6 7. Be2 Bg7 8. Be3 0-0 9. 0-0 Ne5 10. f3 Bd7 11. Rc1 a6 12. Qd2 Re8 13. Rfd1 Qa5 14. h3 Rac8 15. b3 Nc6 16. Bf1 Nh5 17. Nce2 Qxd2 18. Rxd2 Nxd4 19. Nxd4 Ng3 20. Ne2 Nxf1 21. Kxf1 Bc6 22. Kf2 Bf8 23. Nf4 Bh6 24. Nd3 Bxe3+ 25. Kxe3 b6 26. e5 Red8 27. Rcd1 dxe5 28. Nxe5 Rxd2 29. Rxd2 f6 30. Nd3 Kf7 31. Nb4 a5 32. Nc2 e5 33. Na3 f5 34. Nb1 Ke7 35. Nc3 Rd8 36. Rxd8 Kxd8 37. a3 Kd7 38. h4 Kd6 39. b4 axb4 40. axb4 Kc7 41. g3 Kd6 42. f4 e4 43. Kd4 h5 44. Nd1 Bb7 45. Nc3 Bc6 46. Nd1 Ba4 47. Nc3 Bc6 1/2-1/2

[Event "Hoogovens-B"]
[Site "Beverwijk"]
[Date "1965.01.20"]
[Round "8"]
[White "Piket, Joop J"]
[Black "De Rooi, Paul"]
[Result "0-1"]
[ECO "E70"]
[PlyCount "48"]
[EventDate "1965.01.11"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 h6 6. Bh4 c5 7. d5 Qa5 8. Qd2 g5 9. Bg3 Nh5 10. h4 Nxg3 11. fxg3 Nd7 12. hxg5 hxg5 13. Rxh8+ Bxh8 14. Rc1 Nf6 15. Qxg5 Bd7 16. Bd3 0-0-0 17. Nge2 Rg8 18. Qd2 Bg7 19. a3 Rh8 20. Kf2 Ng4+ 21. Ke1 Qd8 22. b4 Rh2 23. Nd1 Qh8 24. Nf2 Rxg2 0-1

[Event "Hoogovens-B"]
[Site "Beverwijk"]
[Date "1965.01.19"]
[Round "7"]
[White "Karaklajic, Nikola"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "A67"]
[PlyCount "49"]
[EventDate "1965.01.11"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ Nfd7 9. Bd3 a6 10. a4 0-0 11. Nf3 Qc7 12. Nd2 b5 13. axb5 Nb6 14. bxa6 Bxa6 15. Bxa6 Nxa6 16. 0-0 c4 17. Nf3 Nc5 18. Rxa8 Rxa8 19. Be3 Nb3 20. e5 Ra5 21. Ng5 h6 22. Nge4 dxe5 23. fxe5 Bxe5 24. d6 Qc6 25. Qf3 1-0

[Event "Hoogovens-B"]
[Site "Beverwijk"]
[Date "1965.01.17"]
[Round "6"]
[White "Piket, Joop J"]
[Black "Van Geet, Dick Daniel"]
[Result "0-1"]
[ECO "D38"]
[PlyCount "75"]
[EventDate "1965.01.11"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. Nf3 e6 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 Nd7 8. Rc1 Bb4 9. a3 Bxc3+ 10. Rxc3 0-0 11. b4 dxc4 12. Bxc4 e5 13. Qb3 exd4 14. exd4 Nb6 15. Ne5 Nxc4 16. Qxc4 Be6 17. Qe2 Rad8 18. Qe3 Rd5 19. 0-0 Rfd8 20. Rd3 Qe7 21. Nf3 Qd6 22. h3 Rf5 23. Rc1 Bd5 24. Ne1 Qf6 25. Rd2 Rd6 26. Nd3 Qg6 27. f4 Rff6 28. Nc5 Qf5 29. Qe8+ Kh7 30. Rf1 b6 31. g4 Rg6 32. Qe7 bxc5 33. Qxd6 Qe4 34. Qxc5 Qh1+ 35. Kf2 Qg2+ 36. Ke1 Re6+ 37. Kd1 Qxf1+ 38. Kc2 0-1

[Event "Hoogovens-B"]
[Site "Beverwijk"]
[Date "1965.01.16"]
[Round "5"]
[White "Gereben, Erno"]
[Black "Piket, Joop J"]
[Result "1/2-1/2"]
[ECO "B70"]
[PlyCount "80"]
[EventDate "1965.01.11"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. Nc3 cxd4 7. Nxd4 Nc6 8. Nb3 d6 9. e4 a5 10. a4 Nb4 11. h3 Be6 12. Nd4 Bc4 13. Re1 Nd7 14. Be3 Rc8 15. Qd2 Nc5 16. Rad1 Qd7 17. Bh6 Be6 18. Nxe6 fxe6 19. Bxg7 Kxg7 20. b3 e5 21. Nb5 Ne6 22. c3 Na6 23. h4 Nec5 24. Qa2 Qe6 25. Rd5 Rf6 26. Re2 Rcf8 27. Qc2 Qg4 28. Rdd2 g5 29. hxg5 Qxg5 30. Na3 Rh6 31. Nc4 Qh5 32. Ne3 Qh2+ 33. Kf1 Rg6 34. Nf5+ Kh8 35. Re3 Ne6 36. Nxe7 Rxg3 37. Rxg3 Qxg3 38. Nf5 Qg5 39. Rd3 Nac5 40. Rg3 Qf4 1/2-1/2

[Event "Hoogovens-B"]
[Site "Beverwijk"]
[Date "1965.01.15"]
[Round "4"]
[White "Piket, Joop J"]
[Black "Mueller, Hans"]
[Result "1/2-1/2"]
[ECO "E28"]
[PlyCount "52"]
[EventDate "1965.01.11"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 0-0 10. e4 Ne8 11. 0-0 Rc8 12. d5 Ne5 13. f4 Nxd3 14. Qxd3 f5 15. Ng3 g6 16. e5 Nc7 17. d6 Na6 18. a4 Nb8 19. a5 Nc6 20. axb6 axb6 21. Be3 Na5 22. Rfb1 Ba6 23. Ra4 Rc6 24. Nf1 Qa8 25. Nd2 Rb8 26. Rb2 Rbc8 1/2-1/2

[Event "Hoogovens-B"]
[Site "Beverwijk"]
[Date "1965.01.13"]
[Round "3"]
[White "Giustolisi, Alberto Mario"]
[Black "Piket, Joop J"]
[Result "1-0"]
[ECO "B31"]
[PlyCount "118"]
[EventDate "1965.01.11"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. c3 Nf6 6. e5 Nd5 7. d4 cxd4 8. cxd4 0-0 9. Nc3 Nc7 10. Ba4 d6 11. Bxc6 bxc6 12. Re1 Bg4 13. h3 Bxf3 14. Qxf3 Ne6 15. Qg4 dxe5 16. dxe5 Qb6 17. Rb1 Rad8 18. Be3 Qa5 19. f4 c5 20. Qe2 Nd4 21. Qf2 f6 22. exf6 exf6 23. f5 Rfe8 24. fxg6 hxg6 25. Rbd1 f5 26. Bg5 Rb8 27. Qg3 Qa6 28. Kh1 Qc6 29. Bc1 Kf7 30. Qd3 c4 31. Qg3 Rh8 32. Kg1 Rbd8 33. Qf2 Rd7 34. Be3 Rhd8 35. Bg5 Rb8 36. Rd2 Rbb7 37. Red1 Ne6 38. Be3 a6 39. Nd5 Qa4 40. Qe2 Qxa2 41. g4 Rxd5 42. Rxd5 c3 43. gxf5 cxb2 44. fxe6+ Kg8 45. Rd8+ Kh7 46. Qg4 Rb5 47. Bg5 Rxg5 48. Qxg5 b1Q 49. Qh4+ Bh6 50. R8d7+ Kg8 51. Qd8+ Bf8 52. e7 Qf5 53. exf8Q+ Qxf8 54. Qb6 Qf5 55. Qd8+ Qf8 56. Qb6 Qf5 57. Rd8+ Kh7 58. R1d7+ Kh6 59. Rh8+ Kg5 1-0

[Event "Hoogovens-B"]
[Site "Beverwijk"]
[Date "1965.01.12"]
[Round "2"]
[White "Piket, Joop J"]
[Black "Kramer, Haije J"]
[Result "1-0"]
[ECO "E26"]
[PlyCount "75"]
[EventDate "1965.01.11"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 Qa5 7. Bd2 Ne4 8. Bd3 Nxd2 9. Qxd2 Nc6 10. Nf3 d6 11. 0-0 0-0 12. Qc2 h6 13. Nd2 Qc7 14. f4 Bd7 15. d5 Ne7 16. e4 e5 17. f5 f6 18. Be2 a6 19. Bh5 b5 20. Rf3 bxc4 21. Nxc4 Rab8 22. Qd2 Be8 23. Bxe8 Rfxe8 24. Rg3 Kf8 25. Qe2 Nc8 26. Qh5 Re7 27. Qg6 Rf7 28. Qh7 Ne7 29. Ne3 c4 30. Ng4 Qb6+ 31. Kf1 Qb2 32. Re1 Qd2 33. Nxf6 Qf4+ 34. Kg1 Qxg3 35. Nd7+ Ke8 36. hxg3 Kxd7 37. f6 Rg8 38. fxe7 1-0

[Event "Hoogovens-B"]
[Site "Beverwijk"]
[Date "1965.01.11"]
[Round "1"]
[White "Balashov, Yuri S"]
[Black "Piket, Joop J"]
[Result "0-1"]
[ECO "A72"]
[PlyCount "80"]
[EventDate "1965.01.11"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 0-0 9. Bg5 h6 10. Bh4 g5 11. Bg3 Nh5 12. Nd2 Nxg3 13. hxg3 Nd7 14. Nc4 Ne5 15. Nxe5 Bxe5 16. Rxh6 Kg7 17. Rh5 Rh8 18. Rxh8 Qxh8 19. Qd2 Qh1+ 20. Bf1 Qh5 21. Ne2 f5 22. f4 Bf6 23. 0-0-0 fxe4 24. fxg5 Bxg5 25. Nf4 Qh6 26. Qc3+ Qf6 27. Kc2 Bg4 28. Re1 Qxc3+ 29. bxc3 Rf8 30. Be2 Bd7 31. Rf1 Ba4+ 32. Kd2 Rf5 33. c4 b5 34. Ke3 bxc4 35. Bxc4 a6 36. Kxe4 Re5+ 37. Kd3 Bb5 38. Kc3 Re3+ 39. Kd2 Rxg3 40. Bxb5 axb5 0-1

[Event "WchT Students 11th final B"]
[Site "Krakow"]
[Date "1964.07.31"]
[Round "8.4"]
[White "Piket, Joop J"]
[Black "Aijala, Jouko"]
[Result "0-1"]
[ECO "A43"]
[PlyCount "84"]
[EventDate "1964.07.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Finland"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "FIN"]

1. d4 c5 2. d5 f5 3. c4 g6 4. Nc3 Nf6 5. e4 fxe4 6. f3 exf3 7. Nxf3 d6 8. Bd3 Nbd7 9. 0-0 Bg7 10. Qc2 0-0 11. Bg5 Ng4 12. Ne4 Nde5 13. Nxe5 Nxe5 14. Rxf8+ Qxf8 15. Rf1 Qe8 16. b3 Bd7 17. Qd2 b5 18. Be2 bxc4 19. bxc4 Rb8 20. Bh6 Rb2 21. Qxb2 Nf3+ 22. Rxf3 Bxb2 23. Rf8+ Qxf8 24. Bxf8 Kxf8 25. g4 a5 26. Kg2 a4 27. Kf3 a3 28. Bd1 h6 29. Bc2 Kf7 30. h3 Be5 31. Bb3 e6 32. Nd2 Bc3 33. Ne4 Be5 34. Nd2 Ke7 35. Bc2 Be8 36. Nb1 Bb2 37. Nd2 Kf6 38. Bb3 Ke5 39. Ne4 exd5 40. cxd5 Bf7 41. Nxc5 dxc5 42. d6 Be8 0-1

[Event "WchT Students 11th final B"]
[Site "Krakow"]
[Date "1964.07.30"]
[Round "7.4"]
[White "Marcos, Fernando"]
[Black "Piket, Joop J"]
[Result "0-1"]
[ECO "E76"]
[PlyCount "80"]
[EventDate "1964.07.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "Cuba"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "CUB"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 g6 3. Nc3 c5 4. d5 Bg7 5. e4 d6 6. f4 0-0 7. Bd3 e6 8. Nge2 exd5 9. exd5 Na6 10. 0-0 Nc7 11. a4 b6 12. f5 Ng4 13. h3 Ne5 14. fxg6 fxg6 15. Bf4 Na6 16. Bxe5 Rxf1+ 17. Qxf1 Bxe5 18. Qf3 Nb4 19. Be4 Bd7 20. Rf1 Qe7 21. b3 Bg7 22. g4 Rf8 23. Qg2 Rxf1+ 24. Qxf1 Qg5 25. Qf3 h5 26. h4 Qxh4 27. Bxg6 Qxg4+ 28. Qxg4 Bxg4 29. Kf2 Be5 30. Nd1 Kg7 31. Be4 Kf6 32. Bf3 Nd3+ 33. Ke3 Bd4+ 34. Nxd4 cxd4+ 35. Kxd3 Bxf3 36. Nf2 Ke5 37. b4 Bg2 38. a5 Bf1+ 39. Kd2 Bxc4 40. axb6 axb6 0-1

[Event "WchT Students 11th final B"]
[Site "Krakow"]
[Date "1964.07.29"]
[Round "6.4"]
[White "Piket, Joop J"]
[Black "Agnes, Corrado"]
[Result "1-0"]
[ECO "E26"]
[PlyCount "43"]
[EventDate "1964.07.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Italy"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ITA"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 Qa5 7. Qc2 Nc6 8. Bd2 d5 9. cxd5 exd5 10. c4 Qc7 11. cxd5 Nxd5 12. Qxc5 Nde7 13. Rc1 Qd8 14. Nf3 0-0 15. Bd3 Bg4 16. Ng5 Ng6 17. h3 Bd7 18. Nf3 Rc8 19. Qb5 Qb6 20. 0-0 Rce8 21. Bc3 Qd8 22. Qh5 1-0

