[Event "Wch Silent"]
[Site "Amsterdam"]
[Date "1980.??.??"]
[Round "?"]
[White "Boot, Wijnand"]
[Black "Zak, Janusz"]
[Result "0-1"]
[ECO "D01"]
[PlyCount "48"]
[EventDate "1980.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Bf5 4. Nf3 Nbd7 5. e3 c6 6. Be2 h6 7. Bxf6 Nxf6 8. Ne5 e6 9. g4 Bh7 10. a3 Bd6 11. h4 Qc7 12. g5 Ne4 13. Nxe4 Bxe4 14. f3 Bxe5 15. dxe5 Bf5 16. gxh6 Qxe5 17. Qd4 Qxd4 18. exd4 Rxh6 19. Kd2 Ke7 20. Rag1 Rah8 21. Bd3 Bxd3 22. Kxd3 Kf8 23. Rg3 Rxh4 24. Rhg1 g6 0-1

[Event "Wch Silent"]
[Site "Amsterdam"]
[Date "1980.??.??"]
[Round "?"]
[White "Gelencser, Jozsef"]
[Black "Zak, Janusz"]
[Result "1/2-1/2"]
[ECO "B25"]
[PlyCount "144"]
[EventDate "1980.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 Bd7 7. Be3 Nd4 8. 0-0 Qc8 9. Qd2 Bh3 10. Bxd4 cxd4 11. Nb5 Bxg2 12. Kxg2 a6 13. Nbxd4 h5 14. h4 Nf6 15. c3 Ng4 16. f4 0-0 17. f5 Bh6 18. Nf4 e5 19. fxe6 fxe6 20. Ndxe6 Qxe6 21. Nxe6 Bxd2 22. Rxf8+ Rxf8 23. Nxf8 Kxf8 24. d4 Ke7 25. Kf3 Bh6 26. a4 Kd7 27. a5 Ne3 28. b3 Ng4 29. Ke2 Nf6 30. Kd3 Ng4 31. Rf1 Ke7 32. Rf3 Nh2 33. Rf2 Ng4 34. Rf1 Be3 35. Ke2 Bh6 36. b4 Nf6 37. Kd3 Ng4 38. Rf3 Nh2 39. Rf2 Ng4 40. Rb2 Kd7 41. b5 axb5 42. Rxb5 Kc6 43. Rb6+ Kc7 44. e5 dxe5 45. Rxg6 exd4 46. cxd4 Bf8 47. Rg5 Nf6 48. Rf5 Be7 49. Kc4 Kc6 50. Rg5 Bd8 51. Rg6 Kd7 52. Rg5 Kd6 53. g4 hxg4 54. h5 Be7 55. Kb5 Ke6 56. Rg7 Nxh5 57. Rxg4 Nf6 58. Rg5 Kd6 59. Rc5 Bd8 60. Rc8 Kd7 61. Rc5 Kd6 62. Re5 Bc7 63. Kc4 Bd8 64. Rb5 Kc7 65. Rb6 Kc8 66. Re6 Kd7 67. Re5 Kd6 68. Rf5 Kc6 69. Rg5 Kd6 70. Rg6 Kc6 71. Rh6 Kd6 72. Rg6 Kc6 1/2-1/2

[Event "Wch Silent"]
[Site "Amsterdam"]
[Date "1980.??.??"]
[Round "?"]
[White "Refayetullah, Mohammad"]
[Black "Zak, Janusz"]
[Result "1-0"]
[ECO "B30"]
[PlyCount "30"]
[EventDate "1980.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Bc4 Nc6 4. c3 Qc7 5. d4 cxd4 6. cxd4 Bb4+ 7. Bd2 Nge7 8. Bb3 Qb6 9. Bc3 d5 10. e5 Bd7 11. 0-0 0-0 12. Bc2 f5 13. exf6 gxf6 14. Qd3 Rf7 15. Rd1 Rg7 1-0

[Event "Wch Silent"]
[Site "Amsterdam"]
[Date "1980.??.??"]
[Round "?"]
[White "Sabotic, Abid"]
[Black "Zak, Janusz"]
[Result "1-0"]
[ECO "B49"]
[PlyCount "149"]
[EventDate "1980.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. a3 a6 7. Be3 Qc7 8. Be2 b5 9. 0-0 Bb7 10. f3 Be7 11. Kh1 Rc8 12. Nb3 Ne5 13. Nd2 0-0 14. f4 Nc4 15. Nxc4 bxc4 16. Bf3 Bc5 17. Bxc5 Qxc5 18. e5 Bxf3 19. Qxf3 Nd5 20. Ne4 Qc6 21. Qg3 f6 22. h3 Rb8 23. Rab1 Kh8 24. b4 cxb3 25. cxb3 Qc2 26. Rfe1 fxe5 27. fxe5 Rf4 28. Rbc1 Qb2 29. Nc5 Qxa3 30. Nxd7 Rd8 31. Nc5 Rg8 32. Nxe6 Rf5 33. Rc6 Qe7 34. Qg4 Qf7 35. Qc4 Nf4 36. Nxf4 Rxf4 37. Qxf7 Rxf7 38. Rxa6 Rb7 39. Re3 Rgb8 40. e6 Kg8 41. Ra1 Kf8 42. Rb1 Ke7 43. Rf1 Ke8 44. Rf7 Rxf7 45. exf7+ Kxf7 46. Kg1 Kf6 47. Kf2 Rb7 48. g3 Kf5 49. Kf3 h5 50. h4 Rb5 51. Kg2 Rb4 52. Rc3 Rb5 53. Rf3+ Ke5 54. Kh3 Rb4 55. Kg2 Rb5 56. Kf2 Rb4 57. Ke2 Rg4 58. Kf2 Rb4 59. Rc3 Kf5 60. Ke2 Ke5 61. Kd2 g6 62. Rf3 Rg4 63. Rd3 g5 64. hxg5 Rxg5 65. Kc3 Rg4 66. b4 h4 67. gxh4 Rxh4 68. Kb3 Rh8 69. b5 Rh4 70. Ka3 Rg4 71. b6 Ke6 72. b7 Rg8 73. Rb3 Rb8 74. Ka4 Kd7 75. Ka5 1-0

[Event "Wch Silent"]
[Site "Amsterdam"]
[Date "1980.??.??"]
[Round "?"]
[White "Stamenov, Stamen"]
[Black "Zak, Janusz"]
[Result "0-1"]
[ECO "E70"]
[PlyCount "100"]
[EventDate "1980.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 g6 5. Bg5 Bg7 6. e4 h6 7. Bxf6 Bxf6 8. Bd3 0-0 9. Nge2 Bg7 10. 0-0 Nd7 11. f4 Nf6 12. h3 e6 13. e5 dxe5 14. fxe5 Nh7 15. Qd2 Qg5 16. Qxg5 hxg5 17. Ne4 Bxe5 18. Nxc5 exd5 19. cxd5 Nf6 20. Bc4 Bf5 21. g4 Bc8 22. Nd3 Nd7 23. Nxe5 Nxe5 24. Bb3 Bd7 25. Nd4 Nd3 26. Ne6 fxe6 27. dxe6 Rxf1+ 28. Rxf1 Bc6 29. e7+ Kg7 30. Rf7+ Kh6 31. Bd5 Re8 32. Bxc6 bxc6 33. Rf6 Rxe7 34. Rxc6 Nxb2 35. Rc2 Nd3 36. Rc3 Nf4 37. Ra3 Rd7 38. Kf2 Kg7 39. Kg3 Rd3+ 40. Rxd3 Nxd3 41. Kf3 Nb4 42. a3 Nc2 43. a4 Kf6 44. Ke4 Ke6 45. Kd3 Ne1+ 46. Ke4 Ng2 47. Kd4 Kd6 48. Kc4 Nf4 49. Kb5 Kc7 50. Ka6 Kb8 0-1

[Event "Wch Silent"]
[Site "Amsterdam"]
[Date "1980.??.??"]
[Round "?"]
[White "Zak, Janusz"]
[Black "Aubert, Charles"]
[Result "1/2-1/2"]
[ECO "C06"]
[PlyCount "119"]
[EventDate "1980.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 Qb6 8. Nf3 cxd4 9. cxd4 Bb4+ 10. Bd2 Bxd2+ 11. Qxd2 Qb4 12. a3 Qxd2+ 13. Nxd2 0-0 14. 0-0 Nb6 15. Rac1 Bd7 16. f4 Rac8 17. b4 a6 18. Nb3 Na4 19. Nc5 Nxc5 20. Rxc5 Ne7 21. Rfc1 Rxc5 22. Rxc5 Nc6 23. Kf2 f6 24. Ke3 fxe5 25. fxe5 g6 26. b5 axb5 27. Bxb5 Kf7 28. a4 Ke7 29. Nc1 Rc8 30. Nd3 b6 31. Rc1 Na5 32. Rxc8 Bxc8 33. Nb4 Bd7 34. Kd3 Bxb5+ 35. axb5 Kd7 36. Nc2 Nc4 37. Ke2 Ke7 38. g4 g5 39. Kd3 Kf7 40. Ke2 Kg6 41. Kd3 h5 42. h3 hxg4 43. hxg4 Kf7 44. Ke2 Ke7 45. Kd3 Na5 46. Na3 Kd7 47. Nc2 Nb7 48. Ne1 Nd8 49. Nf3 Nf7 50. Ke3 Ke7 51. Kf2 Kd7 52. Kg3 Ke8 53. Kh3 Kf8 54. Kg3 Kg7 55. Ne1 Nd8 56. Nc2 Nb7 57. Kf3 Na5 58. Ke2 Nc4 59. Kd3 Kf7 60. Ke2 1/2-1/2

[Event "Wch Silent"]
[Site "Amsterdam"]
[Date "1980.??.??"]
[Round "?"]
[White "Zak, Janusz"]
[Black "Mustakersky, Necho"]
[Result "1-0"]
[ECO "C06"]
[PlyCount "61"]
[EventDate "1980.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 Qb6 8. Nf3 Be7 9. 0-0 0-0 10. Ng3 cxd4 11. cxd4 f5 12. exf6 Bxf6 13. Qc2 h6 14. Bh7+ Kh8 15. Bxh6 gxh6 16. Qg6 Ne7 17. Qxh6 Bg7 18. Qh3 Nf6 19. Ng5 e5 20. Nf5 Nxf5 21. Bxf5+ Kg8 22. dxe5 Bxf5 23. Qxf5 Bh6 24. exf6 Rxf6 25. Qxd5+ Kg7 26. Rae1 Kg6 27. Nf3 Raf8 28. Re7 Bf4 29. Qe4+ Kh5 30. h3 R8f7 31. Re8 1-0

[Event "Wch Silent"]
[Site "Amsterdam"]
[Date "1980.??.??"]
[Round "?"]
[White "Zak, Janusz"]
[Black "Pereira, Renato"]
[Result "0-1"]
[ECO "B83"]
[BlackElo "2205"]
[PlyCount "60"]
[EventDate "1980.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be3 d6 7. Be2 Be7 8. Qd2 a6 9. f4 Qc7 10. Bf3 Bd7 11. 0-0 Rc8 12. Nxc6 Bxc6 13. Rf2 0-0 14. g4 b5 15. g5 b4 16. gxf6 bxc3 17. Qxc3 Bxf6 18. Qa3 Qb7 19. Qb3 Qa8 20. Qd3 Bxb2 21. Rb1 Bb5 22. Qxd6 Rfd8 23. e5 Bc6 24. Bxc6 Rxc6 25. Qb4 Bc3 26. Qe4 Rb6 27. Bxb6 Qxe4 28. Bxd8 Bd4 29. Bh4 g5 30. Bxg5 Bxf2+ 0-1

[Event "Wch Silent"]
[Site "Amsterdam"]
[Date "1980.??.??"]
[Round "?"]
[White "Zak, Janusz"]
[Black "Schmid, Jaroslav"]
[Result "0-1"]
[ECO "B87"]
[PlyCount "89"]
[EventDate "1980.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. f3 Be7 9. Be3 Qc7 10. Qd2 0-0 11. g4 Nc6 12. g5 Nxd4 13. Qxd4 Nd7 14. 0-0-0 Nc5 15. h4 Bb7 16. h5 Rfc8 17. Kb1 Rab8 18. Qd2 b4 19. Na4 Nxa4 20. Bxa4 d5 21. g6 dxe4 22. gxf7+ Kxf7 23. fxe4 Bxe4 24. Bb3 Bxh1 25. Rxh1 Bf6 26. Bf4 Qd8 27. Qe2 Rb6 28. Rd1 Qe8 29. Qe4 Rd8 30. Rf1 Qb5 31. Re1 Qxh5 32. Bxe6+ Kf8 33. Bc1 Re8 34. Qc4 Qb5 35. Qb3 Rexe6 36. Rxe6 Rxe6 37. Qxe6 h5 38. Qd6+ Kf7 39. a3 bxa3 40. Qxa3 h4 41. Qf3 a5 42. b3 Qe5 43. c4 g5 44. Kc2 Kg6 45. Kd2 0-1

[Event "Wch Silent"]
[Site "Amsterdam"]
[Date "1980.??.??"]
[Round "?"]
[White "Zak, Janusz"]
[Black "Walther, Henrik"]
[Result "1/2-1/2"]
[ECO "B84"]
[PlyCount "84"]
[EventDate "1980.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. Be3 b5 8. Bf3 e5 9. Nb3 Bb7 10. Qd2 Qc7 11. 0-0 Nbd7 12. Rfd1 Rc8 13. Rac1 Nb6 14. Bxb6 Qxb6 15. Nd5 Nxd5 16. exd5 Be7 17. Na5 h6 18. Qb4 Rc5 19. c4 Bd8 20. Nxb7 Qxb7 21. cxb5 Qxb5 22. Qxb5+ Rxb5 23. Rc6 Rb6 24. Rdc1 Ke7 25. b3 a5 26. Rc8 Rb4 27. R1c4 Rxc4 28. bxc4 Rf8 29. c5 Kd7 30. Rc6 Bc7 31. Be2 Rb8 32. Bg4+ Kd8 33. Kf1 dxc5 34. d6 Bb6 35. Ke2 g6 36. Bf3 f5 37. Bd5 Kd7 38. Kd3 Bd8 39. Ra6 Bb6 40. Kc4 Kxd6 41. Bf7 Kc6 42. Bd5+ Kd6 1/2-1/2

