[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.15"]
[Round "1"]
[White "Biyiasas, Peter"]
[Black "Browne, Walter Shawn"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2540"]
[ECO "A30"]
[EventDate "1980.01.15"]
[PlyCount "48"]

1. c4 c5 2. Nf3 Nf6 3. Nc3 b6 4. g3 Bb7 5. Bg2 g6 6. b3 d5 7. cxd5 Bg7 8. Rb1 Nxd5 9. Nxd5 Bxd5 10. Bb2 Bxb2 11. Rxb2 Nc6 12. O-O e5 13. d3 O-O 14. Qd2 Re8 15. Qh6 f6 16. h4 Rc8 17. Rc1 Bxf3 18. Bxf3 Nd4 19. Bg2 Rc7 20. Qd2 Kg7 21. Qc3 Ree7 22. Rd2 h5 23. Qb2 Red7 24. Rcd1 Rd6 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.15"]
[Round "1"]
[White "Boehm, Hans"]
[Black "Sigurjonsson, Gudmundur"]
[Result "1-0"]
[WhiteElo "2410"]
[BlackElo "2475"]
[ECO "E32"]
[EventDate "1980.01.15"]
[PlyCount "77"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. Bg5 d6 6. e3 e5 7. Nge2 Re8 8. O-O-O Bxc3 9. Nxc3 h6 10. Bh4 exd4 11. exd4 c6 12. f3 Nbd7 13. g4 Qa5 14. Rg1 Nh7 15. Bd3 Ndf8 16. f4 f6 17. Kb1 Be6 18. d5 cxd5 19. cxd5 Bf7 20. g5 fxg5 21. fxg5 hxg5 22. Bxg5 Bh5 23. Bh6 Re7 24. Rdf1 Rae8 25. Qf2 Rf7 26. Qg3 Rxf1+ 27. Rxf1 Re7 28. Qxd6 Rf7 29. Rxf7 Bxf7 30. Qg3 g6 31. Qe5 Ne6 32. a3 Qc7 33. Qxc7 Nxc7 34. d6 Ne6 35. Nd5 Nhf8 36. Nf6+ Kh8 37. d7 Nh7 38. Nxh7 Kxh7 39. Bg5 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.15"]
[Round "1"]
[White "Byrne, Robert"]
[Black "Alburt, Lev"]
[Result "1-0"]
[WhiteElo "2530"]
[BlackElo "2515"]
[ECO "B05"]
[EventDate "1980.01.15"]
[PlyCount "149"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 e6 6. O-O Be7 7. c4 Nb6 8. Be3 O-O 9. Nc3 d5 10. c5 Bxf3 11. gxf3 Nc8 12. f4 Nc6 13. b4 a6 14. a3 g6 15. Bd3 Kh8 16. Kh1 Rg8 17. Rg1 Bf8 18. Qf3 N8e7 19. Rg3 Bg7 20. Rag1 Rf8 21. Rh3 f5 22. Qg3 Rf7 23. Nb1 Bf8 24. Nd2 Rg7 25. Nf3 Ng8 26. Ng5 Qe8 27. Qh4 h6 28. Rhg3 Nd8 29. Nf3 b5 30. Qh3 Be7 31. Be2 c6 32. Qg2 a5 33. Rxg6 Rxg6 34. Qxg6 Qxg6 35. Rxg6 axb4 36. axb4 Ra2 37. Bd2 Kh7 38. Rg1 Bf8 39. Rb1 Ne7 40. Bd1 Ng6 41. Bb3 Ra3 42. Kg2 Be7 43. Kg3 Nf7 44. h4 Ra8 45. h5 Nf8 46. Nh2 Bd8 47. Nf1 Bc7 48. Kh3 Nd7 49. Ng3 Nf8 50. Be3 Kh8 51. Rb2 Ra3 52. Bc2 Nd8 53. Nxf5 exf5 54. Bxf5 Nde6 55. Kg4 Kg7 56. Bb1 Nd7 57. Ra2 Rxa2 58. Bxa2 Bd8 59. Bb1 Nf6+ 60. exf6+ Bxf6 61. Bf5 Nxd4 62. Bd7 Kf8 63. Bxd4 Bxd4 64. Bxc6 Bc3 65. Bxb5 Bxb4 66. c6 Bd6 67. Ba4 Ke7 68. Bb3 d4 69. Bc2 Kd8 70. Kf3 Kc7 71. Ba4 Kb6 72. f5 Be5 73. Ke4 Bf6 74. Kd5 d3 75. Kd6 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.15"]
[Round "1"]
[White "Kortschnoj, Viktor"]
[Black "Sunye Neto, Jaime"]
[Result "1/2-1/2"]
[WhiteElo "2695"]
[BlackElo "2415"]
[ECO "A30"]
[EventDate "1980.01.15"]
[PlyCount "138"]

1. c4 Nf6 2. Nc3 c5 3. Nf3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. d4 Ne4 8. d5 Nxc3 9. bxc3 Bf6 10. Qd3 O-O 11. Rb1 e5 12. e4 d6 13. Be3 Na6 14. Nd2 Qe8 15. Qc2 Nc7 16. f4 Ba6 17. a4 Rb8 18. Ra1 Qe7 19. Rfe1 Bc8 20. Bf2 a6 21. Nf3 Bg4 22. fxe5 Bxe5 23. Nxe5 Qxe5 24. Be3 g5 25. Qd2 f6 26. Rf1 a5 27. Qd3 Rbe8 28. Bd2 Kg7 29. Rae1 Bd7 30. Qb1 Na8 31. Qd1 Rb8 32. Qc2 Qe8 33. Ra1 Qg6 34. Qd1 Rbe8 35. Bf3 Re5 36. g4 Rfe8 37. Be1 Rxe4 38. Bxe4 Rxe4 39. Bg3 Bxg4 40. Qb1 f5 41. Re1 Be2 42. Qxe4 fxe4 43. Rxe2 h5 44. Rae1 Nc7 45. Rxe4 h4 46. Re7+ Kf8 47. Bf2 Na6 48. Ra7 Qh5 49. h3 g4 50. Rf1 Kg8 51. Rxa6 g3 52. Rxb6 Qg6 53. Bxc5 Qc2 54. Bf2 gxf2+ 55. Rxf2 Qxc3 56. Rxd6 Qe1+ 57. Kg2 Qe4+ 58. Kf1 Qxc4+ 59. Kg1 Qxa4 60. Rg6+ Kh7 61. Rg4 Qd1+ 62. Kh2 Qxd5 63. Rxh4+ Kg6 64. Rg2+ Kf6 65. Rf4+ Ke7 66. Re2+ Kd6 67. h4 Qd1 68. Rfe4 a4 69. Re8 Kd7 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.15"]
[Round "1"]
[White "Ree, Hans"]
[Black "Kovacevic, Vlatko"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2510"]
[ECO "D38"]
[EventDate "1980.01.15"]
[PlyCount "38"]

1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Nf3 Bb4 5. Bg5 h6 6. Bxf6 Qxf6 7. cxd5 exd5 8. Qb3 c5 9. a3 cxd4 10. axb4 dxc3 11. Qxc3 Qxc3+ 12. bxc3 Nd7 13. e3 Nb6 14. Bd3 Ke7 15. Nd4 Bd7 16. Kd2 Rhc8 17. Ra5 Kd6 18. Rha1 a6 19. R5a3 g6 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.15"]
[Round "1"]
[White "Seirawan, Yasser"]
[Black "Van der Wiel, John"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2465"]
[ECO "A34"]
[EventDate "1980.01.15"]
[PlyCount "91"]

1. c4 Nf6 2. Nc3 c5 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc7 6. d3 e5 7. Nf3 Nc6 8. Nd2 Bd7 9. O-O Be7 10. Nc4 f6 11. f4 b5 12. Ne3 exf4 13. gxf4 Rb8 14. Ned5 Nxd5 15. Nxd5 Bd6 16. Be3 Ne7 17. b4 Nxd5 18. Bxd5 Qe7 19. Rf3 Bg4 20. Rg3 h5 21. Qd2 Kf8 22. h3 Bf5 23. bxc5 Bxc5 24. Rc1 Ba3 25. Rc6 h4 26. Rf3 Rd8 27. Bb3 Rh6 28. Qa5 Rg6+ 29. Kf2 Rg3 30. Rc7 Rxf3+ 31. Kxf3 Bd7 32. Qxa7 Bd6 33. Bc5 Bxc5 34. Qxc5 Qxc5 35. Rxc5 Bxh3 36. Rh5 f5 37. Rxh4 Bg4+ 38. Kf2 Ke7 39. Rh1 Kd6 40. e4 Ke7 41. Ke3 fxe4 42. dxe4 Be6 43. Rg1 Bxb3 44. axb3 Kf7 45. Rg5 Rb8 46. b4 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.15"]
[Round "1"]
[White "Timman, Jan"]
[Black "Ligterink, Gert"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2455"]
[ECO "E57"]
[EventDate "1980.01.15"]
[PlyCount "114"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nc6 8. a3 cxd4 9. exd4 Bxc3 10. bxc3 dxc4 11. Bxc4 Qa5 12. Bb2 e5 13. Re1 e4 14. Nd2 Bg4 15. Be2 Bf5 16. Nc4 Qc7 17. Ne3 Bg6 18. c4 Rad8 19. Qd2 Ne5 20. d5 Rfe8 21. Red1 Nfd7 22. d6 Qc6 23. Qb4 Nc5 24. Bd4 Ned3 25. Bxd3 Nxd3 26. Qc3 f6 27. c5 b6 28. cxb6 Qxd6 29. Bc5 Qc6 30. bxa7 Rc8 31. Bb4 Qxc3 32. Bxc3 Rxc3 33. Nd5 Rc5 34. Nb6 Ra5 35. a8=Q Rexa8 36. Nxa8 Rxa8 37. Rdb1 f5 38. g3 f4 39. gxf4 Nxf4 40. Rb7 Rf8 41. Rb2 Nd3 42. Rc2 Bf5 43. a4 Rf6 44. h4 Rg6+ 45. Kf1 Nf4 46. Rca2 Be6 47. Ra3 Bc4+ 48. Ke1 Nd3+ 49. Kd2 Nxf2 50. Ke3 Rf6 51. a5 Ba6 52. R1a2 Rf3+ 53. Kd4 Rxa3 54. Rxa3 Kf7 55. Rb3 Ng4 56. Kxe4 Kg6 57. Rb6+ Nf6+ 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.16"]
[Round "2"]
[White "Browne, Walter Shawn"]
[Black "Timman, Jan"]
[Result "1-0"]
[WhiteElo "2540"]
[BlackElo "2600"]
[ECO "E66"]
[EventDate "1980.01.15"]
[PlyCount "79"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d6 6. Nc3 Nc6 7. O-O a6 8. d5 Na5 9. Nd2 c5 10. Qc2 Rb8 11. b3 b5 12. Bb2 Bh6 13. f4 bxc4 14. bxc4 e5 15. dxe6 Bxe6 16. Nd5 Bxd5 17. cxd5 Ng4 18. Nb3 Nxb3 19. axb3 Qb6 20. Qc3 c4+ 21. Kh1 f6 22. Bh3 Nf2+ 23. Rxf2 Qxf2 24. Be6+ Kh8 25. Qxc4 Qb6 26. Bd4 Qxb3 27. Qxb3 Rxb3 28. Rxa6 g5 29. fxg5 Bxg5 30. Rxd6 h5 31. Rc6 h4 32. d6 Rb1+ 33. Kg2 Rd1 34. e3 hxg3 35. hxg3 Rxd4 36. exd4 f5 37. Bxf5 Rxf5 38. Rc5 Rxc5 39. dxc5 Kg7 40. c6 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.16"]
[Round "2"]
[White "Kovacevic, Vlatko"]
[Black "Byrne, Robert"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2530"]
[ECO "D02"]
[EventDate "1980.01.15"]
[PlyCount "83"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 Bf5 4. e3 c6 5. c4 e6 6. Nc3 Nbd7 7. Qb3 Qb6 8. c5 Qxb3 9. axb3 a6 10. b4 Rc8 11. h3 Be7 12. Nd2 O-O 13. g4 Bg6 14. Nb3 Ra8 15. Na5 Ra7 16. f3 Rc8 17. Kd2 b6 18. Bxa6 Rxa6 19. Nxc6 Rxc6 20. Rxa6 Rc8 21. Rha1 bxc5 22. Ra8 Rf8 23. bxc5 Nxc5 24. Rxf8+ Kxf8 25. Ra8+ Ne8 26. dxc5 Bxc5 27. Rc8 Be7 28. e4 dxe4 29. Nxe4 f6 30. Bd6 f5 31. Bxe7+ Kxe7 32. Nc5 Kd6 33. b4 Nc7 34. Rxc7 Kxc7 35. Nxe6+ Kd6 36. Nxg7 fxg4 37. hxg4 Kd5 38. Ke3 Kc4 39. f4 Kxb4 40. f5 Bf7 41. Ne6 h6 42. Nd8 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.16"]
[Round "2"]
[White "Ligterink, Gert"]
[Black "Boehm, Hans"]
[Result "1-0"]
[WhiteElo "2455"]
[BlackElo "2410"]
[ECO "C63"]
[EventDate "1980.01.15"]
[PlyCount "123"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 fxe4 5. Nxe4 d5 6. Ng3 Bg4 7. h3 Bxf3 8. Qxf3 Nf6 9. O-O Bd6 10. Nh5 e4 11. Nxf6+ Qxf6 12. Qxf6 gxf6 13. d3 O-O-O 14. dxe4 dxe4 15. Be3 a6 16. Bxc6 bxc6 17. f3 exf3 18. Rxf3 Be5 19. c3 Rd3 20. Raf1 Rhd8 21. Bh6 c5 22. Rxd3 Rxd3 23. Bg7 Rd6 24. g4 Re6 25. Rf5 Rb6 26. g5 Rxb2 27. gxf6 Bxc3 28. Bh8 Bxf6 29. Bxf6 Rxa2 30. Rxc5 Kd7 31. Rh5 a5 32. Rxh7+ Ke6 33. Bh8 c5 34. Rh5 Rc2 35. Re5+ Kd6 36. Re3 a4 37. Ra3 Rc4 38. Kf2 Rh4 39. Bf6 Rf4+ 40. Rf3 Rb4 41. h4 Ke6 42. Kg3 c4 43. h5 a3 44. h6 Rb7 45. Bg7 a2 46. Kh4 Rb4 47. Kg5 Rb1 48. Ra3 Rg1+ 49. Kf4 Kf7 50. Rxa2 Kg6 51. Rc2 Rf1+ 52. Ke3 Re1+ 53. Kd4 Rd1+ 54. Kxc4 Rd8 55. Rc3 Rd7 56. Rd3 Rc7+ 57. Kd4 Rc8 58. Ke4 Re8+ 59. Kf4 Ra8 60. Rd6+ Kh7 61. Kf5 Ra7 62. Be5 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.16"]
[Round "2"]
[White "Seirawan, Yasser"]
[Black "Kortschnoj, Viktor"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2695"]
[ECO "A18"]
[EventDate "1980.01.15"]
[PlyCount "77"]

1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Bd3 cxd4 10. cxd4 Bb4+ 11. Kf1 Nc6 12. Bb2 Bc5 13. Bc2 O-O 14. Qd3 Rd8 15. Rd1 Kf8 16. Qe4 Bd6 17. h4 Qf5 18. Qe2 Qa5 19. Bb3 Ne7 20. h5 b6 21. Qe4 Ba6 22. d5 exd5 23. Qh7 f6 24. Kg1 Bxc4 25. Rh4 Bxb3 26. axb3 Kf7 27. Rg4 Rg8 28. Re1 d4 29. Rxd4 Be5 30. Rd7 Qxe1+ 31. Nxe1 Bxb2 32. Nd3 Ba3 33. Nf4 Rgd8 34. Qg6+ Kg8 35. Qd3 Rxd7 36. Qxd7 Rc8 37. Kh2 Kf7 38. Ng6 Ra8 39. Nxe7 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.16"]
[Round "2"]
[White "Sigurjonsson, Gudmundur"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2475"]
[BlackElo "2520"]
[ECO "E01"]
[EventDate "1980.01.15"]
[PlyCount "49"]

1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 e6 5. O-O cxd4 6. Nxd4 Bc5 7. Nb3 Bb6 8. c4 Nge7 9. cxd5 Nxd5 10. Na3 O-O 11. Nc4 Bc7 12. Bd2 Qe7 13. Rc1 Rd8 14. Qc2 Bd7 15. Qb1 Be8 16. a3 Rac8 17. Rfd1 Ne5 18. Nxe5 Bxe5 19. e4 Nb6 20. Rxc8 Nxc8 21. Bb4 Rxd1+ 22. Qxd1 Qd7 23. Qxd7 Bxd7 24. Nc5 Bc6 25. Nd3 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.16"]
[Round "2"]
[White "Sunye Neto, Jaime"]
[Black "Biyiasas, Peter"]
[Result "1/2-1/2"]
[WhiteElo "2415"]
[BlackElo "2485"]
[ECO "E93"]
[EventDate "1980.01.15"]
[PlyCount "109"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 Nbd7 7. Be3 e5 8. d5 Ng4 9. Bg5 f6 10. Bh4 Nh6 11. Nd2 Nf7 12. b4 Bh6 13. f3 Be3 14. Nb3 Bg5 15. Bf2 a6 16. Bd3 Re8 17. O-O Nf8 18. Qc2 Qd7 19. c5 f5 20. Na5 fxe4 21. fxe4 Qe7 22. Kh1 h5 23. Bg1 Nh7 24. a4 Rf8 25. b5 axb5 26. axb5 Qe8 27. c6 b6 28. Nc4 Rxa1 29. Rxa1 h4 30. Ra8 h3 31. Na4 hxg2+ 32. Qxg2 Bh3 33. Rxe8 Bxg2+ 34. Kxg2 Rxe8 35. Ncxb6 cxb6 36. Nxb6 Bd8 37. Nd7 Re7 38. b6 Rxd7 39. cxd7 Nf6 40. Bb5 Nxe4 41. b7 Bc7 42. Bb6 Nc5 43. Bxc7 Nxb7 44. Bc6 Nbd8 45. Ba5 Kg7 46. Kf3 Kf6 47. Bd2 Ng5+ 48. Kg4 Nh7 49. Bb5 Nf7 50. Bd3 Kg7 51. Bb5 Nf6+ 52. Kf3 Kf8 53. Bd3 Kg7 54. Bb5 Kf8 55. Bd3 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.16"]
[Round "2"]
[White "Van der Wiel, John"]
[Black "Alburt, Lev"]
[Result "0-1"]
[WhiteElo "2465"]
[BlackElo "2515"]
[ECO "B04"]
[EventDate "1980.01.15"]
[PlyCount "108"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Nb6 5. Nc3 Bf5 6. Bd3 Qd7 7. O-O d5 8. a4 Bxd3 9. Qxd3 e6 10. a5 Nc8 11. Ne2 a6 12. b3 Nc6 13. Nf4 g6 14. c3 N8e7 15. h3 Bg7 16. Nh2 h5 17. Nf3 Nf5 18. g3 Bf8 19. Ng2 Be7 20. Bg5 Bxg5 21. Nxg5 Qe7 22. f4 Na7 23. g4 hxg4 24. hxg4 Nh6 25. Ne3 O-O-O 26. Ra2 f5 27. exf6 Qxf6 28. Rh2 Nf7 29. Nxf7 Rxh2 30. Kxh2 Qxf7 31. Ng2 Nb5 32. Rf3 Nd6 33. Rh3 Ne4 34. Rh6 g5 35. fxg5 Qg7 36. Rxe6 Nxg5 37. Re5 Rf8 38. Rf5 Rh8+ 39. Kg1 Qh7 40. Kf2 Ne4+ 41. Ke2 Qh1 42. Qf3 Nxc3+ 43. Kd2 Ne4+ 44. Ke2 Qh6 45. g5 Qd6 46. Nf4 Qb4 47. Qe3 Qb5+ 48. Kf3 Qf1+ 49. Kg4 Nf2+ 50. Kg3 Qg1+ 51. Kf3 Qg4+ 52. Kxf2 Qxf5 53. Qe6+ Qxe6 54. Nxe6 Rg8 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.17"]
[Round "3"]
[White "Alburt, Lev"]
[Black "Kovacevic, Vlatko"]
[Result "1/2-1/2"]
[WhiteElo "2515"]
[BlackElo "2510"]
[ECO "A10"]
[EventDate "1980.01.15"]
[PlyCount "56"]

1. c4 f5 2. Nc3 Nf6 3. Nf3 g6 4. d3 d6 5. e4 Bg7 6. exf5 Bxf5 7. d4 O-O 8. Bd3 Bg4 9. Be2 c6 10. d5 Na6 11. h3 Bd7 12. Nd4 cxd5 13. cxd5 Nc5 14. Bf3 a5 15. O-O Qb6 16. Re1 Rfe8 17. Rb1 Rac8 18. Be3 Qa6 19. Be2 Qa8 20. Bf3 Qa6 21. Nb3 Nxb3 22. Qxb3 a4 23. Qd1 a3 24. Be2 Qa8 25. Bd4 Bf5 26. Bd3 Bxd3 27. Qxd3 axb2 28. Rxb2 Qa6 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.17"]
[Round "3"]
[White "Biyiasas, Peter"]
[Black "Seirawan, Yasser"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2510"]
[ECO "C00"]
[EventDate "1980.01.15"]
[PlyCount "76"]

1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 b6 5. e5 Nfd7 6. g3 Nc6 7. d4 Be7 8. Nb3 a5 9. Be3 Ncb8 10. c3 O-O 11. h4 Ba6 12. Nc1 c5 13. Nd3 Nc6 14. a3 Re8 15. Nf4 Nf8 16. Bxa6 Rxa6 17. Kf1 Qd7 18. Kg2 f6 19. exf6 gxf6 20. h5 Bd6 21. Rh4 Re7 22. Qd3 c4 23. Qd2 Rg7 24. Rah1 Ne7 25. Ne2 Nf5 26. R4h3 Qf7 27. Bf4 b5 28. Bxd6 Nxd6 29. Nf4 Ne4 30. Qe3 b4 31. Rh4 Nd6 32. Qc1 Nf5 33. R4h3 bxa3 34. bxa3 Rb6 35. h6 Rg4 36. Nh2 Rg5 37. Nf3 Rg4 38. Nh2 Rg5 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.17"]
[Round "3"]
[White "Boehm, Hans"]
[Black "Browne, Walter Shawn"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2540"]
[ECO "E39"]
[EventDate "1980.01.15"]
[PlyCount "119"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. a3 Bxc5 7. Nf3 Nc6 8. Bg5 Nd4 9. Nxd4 Bxd4 10. e3 Qa5 11. exd4 Qxg5 12. g3 d5 13. f4 Qh6 14. c5 Bd7 15. b4 Ne4 16. Nxe4 dxe4 17. b5 f5 18. Be2 a6 19. bxa6 bxa6 20. O-O Qf6 21. Rfd1 Rfd8 22. Rab1 Bb5 23. Bxb5 axb5 24. Qc3 Ra4 25. Rb4 Rda8 26. Rxb5 Rxa3 27. Rb8+ Rxb8 28. Qxa3 Qd8 29. c6 Rc8 30. Qc3 Qd6 31. Rc1 Rc7 32. Kf2 Kf7 33. Ke3 h6 34. Qb3 Kg6 35. Qc4 Qd5 36. Qa4 Qd6 37. Rc5 Kf6 38. Qa8 Kf7 39. Qa6 Kf6 40. Qc4 g5 41. fxg5+ hxg5 42. Kf2 f4 43. d5 Qe5 44. dxe6 Qb2+ 45. Kf1 f3 46. Qc3+ Qxc3 47. Rxc3 Kxe6 48. h4 gxh4 49. gxh4 Ke5 50. Kf2 Kd6 51. h5 Ke7 52. Ke3 Kf6 53. Rc1 Kg7 54. Kxe4 f2 55. Kd5 Re7 56. Rf1 Re2 57. c7 Rc2 58. Kd6 Rd2+ 59. Ke7 Re2+ 60. Kd7 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.17"]
[Round "3"]
[White "Byrne, Robert"]
[Black "Sigurjonsson, Gudmundur"]
[Result "1/2-1/2"]
[WhiteElo "2530"]
[BlackElo "2475"]
[ECO "B84"]
[EventDate "1980.01.15"]
[PlyCount "55"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. f4 Be7 8. O-O O-O 9. Bf3 Qc7 10. Kh1 Nc6 11. a4 Bd7 12. g4 Nxd4 13. Qxd4 Bc6 14. g5 Nd7 15. Nd5 Bxd5 16. exd5 e5 17. Qe4 f5 18. gxf6 Bxf6 19. Bg4 Nc5 20. Qg2 exf4 21. Ra3 a5 22. Rxf4 Be5 23. Rxf8+ Rxf8 24. Rf3 Qe7 25. b3 Rxf3 26. Bxf3 Qh4 27. Bd2 b6 28. Qe2 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.17"]
[Round "3"]
[White "Kortschnoj, Viktor"]
[Black "Van der Wiel, John"]
[Result "1/2-1/2"]
[WhiteElo "2695"]
[BlackElo "2465"]
[ECO "A12"]
[EventDate "1980.01.15"]
[PlyCount "120"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. O-O Bg4 5. c4 e6 6. b3 Nbd7 7. Bb2 Bd6 8. d3 O-O 9. Nbd2 e5 10. h3 Bh5 11. Nh4 Re8 12. Ndf3 Bg6 13. Nxg6 hxg6 14. a3 Qe7 15. Nd2 Rad8 16. cxd5 cxd5 17. b4 e4 18. dxe4 dxe4 19. Nc4 Ne5 20. Nxd6 Rxd6 21. Qb3 b5 22. Rad1 Nc4 23. Rxd6 Qxd6 24. Rd1 Qe6 25. e3 Rc8 26. Bd4 Nd7 27. a4 a6 28. axb5 axb5 29. Qb1 f5 30. Qa2 Nde5 31. Bxe5 Qxe5 32. Qa6 Qe8 33. Bf1 Kh7 34. Rd5 Ra8 35. Qxb5 Qxb5 36. Rxb5 Nd2 37. Ra5 Rc8 38. Be2 Rc1+ 39. Kg2 Re1 40. Ra2 Rxe2 41. h4 g5 42. hxg5 Kg6 43. b5 Kxg5 44. b6 Re1 45. Rxd2 Rb1 46. Rd6 Rb2 47. Rd7 Rxb6 48. Rxg7+ Kf6 49. Rh7 Rb8 50. Rh6+ Ke5 51. Rh5 Kf6 52. Rh1 Ra8 53. Rh6+ Ke5 54. Rb6 Rc8 55. Rb2 Ra8 56. Kf1 Ra1+ 57. Ke2 Ra8 58. Kd2 Rd8+ 59. Kc1 Rh8 60. Ra2 Rc8+ 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.17"]
[Round "3"]
[White "Ree, Hans"]
[Black "Ligterink, Gert"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2455"]
[ECO "E32"]
[EventDate "1980.01.15"]
[PlyCount "59"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 b6 7. Bg5 Bb7 8. e3 d6 9. f3 Nbd7 10. Bd3 c5 11. Ne2 h6 12. Bh4 Qc7 13. O-O Rac8 14. Rac1 cxd4 15. Nxd4 d5 16. Qd2 dxc4 17. Bxc4 Qb8 18. Bg3 Ne5 19. Nxe6 fxe6 20. Bxe6+ Kh8 21. Bxc8 Bxc8 22. Qc3 Nfd7 23. Rfd1 Re8 24. Rd5 Kh7 25. e4 b5 26. Qc7 Qxc7 27. Rxc7 Nc4 28. Rxb5 a6 29. Rb4 Nce5 30. Bxe5 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.17"]
[Round "3"]
[White "Timman, Jan"]
[Black "Sunye Neto, Jaime"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2415"]
[ECO "B97"]
[EventDate "1980.01.15"]
[PlyCount "138"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2 9. Rb1 Qa3 10. f5 Nc6 11. fxe6 fxe6 12. Nxc6 bxc6 13. e5 Nd5 14. Nxd5 cxd5 15. Be2 dxe5 16. O-O Ra7 17. c4 Qc5+ 18. Kh1 d4 19. Bh5+ g6 20. Bd1 Be7 21. Ba4+ Kd8 22. Rf7 h6 23. Bxh6 e4 24. h3 e5 25. Bg5 e3 26. Bxe3 Rh5 27. Rg7 Rb7 28. Re1 Qb4 29. Qd1 Qd6 30. Bd2 Kc7 31. Bc2 d3 32. Ba5+ Kb8 33. Qxd3 Qxd3 34. Bxd3 Bb4 35. Bxb4 Rxg7 36. Bd6+ Ka8 37. c5 Bb7 38. Kh2 Rg8 39. g4 Rh7 40. Rxe5 Rf7 41. Bc4 Rf2+ 42. Kg3 Rf3+ 43. Kh4 g5+ 44. Rxg5 Rxh3+ 45. Kxh3 Rxg5 46. Kh4 Rg7 47. Be6 Be4 48. Kg3 Rg6 49. Bc8 Ka7 50. Kf4 Bd5 51. a3 Rg8 52. Bd7 Kb7 53. Ke5 Bf3 54. Kf4 Bd5 55. g5 Rg7 56. Bf5 Kc6 57. g6 Rb7 58. Ke5 Rb2 59. Bd3 Rb3 60. Bxa6 Re3+ 61. Kf6 Rxa3 62. Bc8 Ra1 63. Bf5 Rf1 64. g7 Rxf5+ 65. Kxf5 Bg8 66. Ke5 Ba2 67. Kd4 Bg8 68. Kc3 Kb5 69. Bf8 Ba2 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.19"]
[Round "4"]
[White "Browne, Walter Shawn"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2540"]
[BlackElo "2520"]
[ECO "D67"]
[EventDate "1980.01.15"]
[PlyCount "67"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. bxc3 b6 13. e4 Bb7 14. Re1 c5 15. d5 exd5 16. Bxd5 Bxd5 17. exd5 Qd6 18. Qa4 Nf6 19. c4 a6 20. Qc6 Qxc6 21. dxc6 Rfc8 22. Ne5 Ne8 23. Rb1 f6 24. Nd7 Rxc6 25. Rxb6 Rd6 26. Rb7 Rd8 27. Nxc5 Rc6 28. Rd7 Rxd7 29. Nxd7 Kf7 30. c5 Nc7 31. Kf1 a5 32. Re3 Ne6 33. Ra3 Ke8 34. Rd3 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.19"]
[Round "4"]
[White "Kortschnoj, Viktor"]
[Black "Biyiasas, Peter"]
[Result "1-0"]
[WhiteElo "2695"]
[BlackElo "2485"]
[ECO "E81"]
[EventDate "1980.01.15"]
[PlyCount "85"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Bg5 O-O 5. Qd2 d6 6. e4 Nbd7 7. f3 e5 8. d5 h6 9. Be3 Nh7 10. O-O-O h5 11. Bd3 Ndf6 12. Nge2 Qe7 13. b4 a5 14. a3 axb4 15. axb4 Ne8 16. Kb2 f5 17. Ra1 Rxa1 18. Rxa1 f4 19. Bf2 Qg5 20. Rg1 h4 21. h3 Qh5 22. Nc1 Ng5 23. Be2 Bf6 24. Nb3 Rf7 25. Ra1 b6 26. Ra8 Bd7 27. c5 bxc5 28. bxc5 Rf8 29. c6 Bxh3 30. gxh3 Nxh3 31. Qe1 Nxf2 32. Qxf2 h3 33. Qh2 Kf7 34. Ra1 Rh8 35. Rh1 Ng7 36. Nd2 Qg5 37. Bf1 Rh4 38. Bxh3 Qh6 39. Qg2 Ke7 40. Nd1 Rh5 41. Kc2 Qh8 42. Qf1 Qa8 43. Nc3 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.19"]
[Round "4"]
[White "Ligterink, Gert"]
[Black "Byrne, Robert"]
[Result "0-1"]
[WhiteElo "2455"]
[BlackElo "2530"]
[ECO "E17"]
[EventDate "1980.01.15"]
[PlyCount "78"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. d5 exd5 8. Nd4 Bc6 9. cxd5 Bxd5 10. Bxd5 Nxd5 11. e4 Nb4 12. Nc3 N8c6 13. Nf5 Bf6 14. a3 Na6 15. Nd5 Nc5 16. Re1 Re8 17. Bf4 d6 18. b4 Bxa1 19. Qxa1 Ne6 20. Bh6 f6 21. Nxg7 Nxg7 22. Nxf6+ Kf7 23. Bxg7 Ne5 24. Rc1 Re6 25. Nh5 c5 26. f4 Nd3 27. Rd1 Rxe4 28. Rxd3 Qe7 29. Rd1 Re8 30. bxc5 bxc5 31. Qa2+ c4 32. Bc3 d5 33. Qd2 d4 34. Bxd4 Rd8 35. Qc3 Rdxd4 36. Rxd4 Qc5 37. Qxc4+ Qxc4 38. Rxc4 Rxc4 39. g4 Ra4 {Time} 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.19"]
[Round "4"]
[White "Seirawan, Yasser"]
[Black "Timman, Jan"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2600"]
[ECO "A18"]
[EventDate "1980.01.15"]
[PlyCount "82"]

1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 Ne4 5. Nxe4 dxe4 6. Qg4 Bd7 7. Qxe4 Bc6 8. Qe3 Na6 9. d4 Nb4 10. Kd2 a5 11. a3 Na6 12. Kc2 Qd7 13. Nf3 Be7 14. Bd2 O-O 15. Bc3 b5 16. cxb5 Bxb5 17. Bxb5 Qxb5 18. Rhd1 Rfd8 19. Kd2 Nb4 20. Qe2 Qb7 21. axb4 axb4 22. Ke1 bxc3 23. bxc3 Qb3 24. Qd3 Rxa1 25. Rxa1 h6 26. Rb1 Qa3 27. Qc4 c5 28. Kf1 Qa8 29. h3 Rc8 30. Qb5 cxd4 31. cxd4 Qa2 32. Kg1 Bg5 33. Re1 Bf4 34. Qd7 Rb8 35. g3 Qa8 36. d5 Rd8 37. Qc6 Qxc6 38. dxc6 Bg5 39. Nxg5 hxg5 40. Kg2 Rc8 41. Rc1 f5 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.19"]
[Round "4"]
[White "Sigurjonsson, Gudmundur"]
[Black "Alburt, Lev"]
[Result "0-1"]
[WhiteElo "2475"]
[BlackElo "2515"]
[ECO "A04"]
[EventDate "1980.01.15"]
[PlyCount "112"]

1. Nf3 Nf6 2. g3 c5 3. Bg2 Nc6 4. O-O e5 5. e4 Nxe4 6. Re1 Nf6 7. Nxe5 Be7 8. c3 Nxe5 9. Rxe5 O-O 10. d4 d6 11. Re1 d5 12. Bg5 Be6 13. Nd2 cxd4 14. cxd4 h6 15. Bf4 Qb6 16. Qb3 Qxd4 17. Qxb7 Qb4 18. Qxb4 Bxb4 19. Red1 Rac8 20. Nb3 Rfd8 21. Be3 Rc7 22. Rac1 Rb7 23. Bd4 Nd7 24. a3 Bd6 25. Na5 Rb5 26. Nc6 Ra8 27. Nxa7 Rb3 28. Nc6 Nb8 29. Nxb8 Raxb8 30. Bc3 Rc8 31. Bd4 Rcb8 32. Rc6 Be7 33. Bc3 Rd8 34. Rd2 Bxa3 35. Be4 Bb4 36. Bc2 Bxc3 37. bxc3 Ra3 38. h4 Kf8 39. Rd4 Ra1+ 40. Kg2 Rb8 41. Rc7 Ra2 42. Bd1 Rbb2 43. Rf4 g6 44. h5 g5 45. Rf6 Ke8 46. g4 Kd8 47. Rcxf7 Bxf7 48. Rxf7 Rd2 49. Bf3 Rxf2+ 50. Kg3 Rf1 51. Rh7 Rg1+ 52. Kh3 Rc1 53. Rxh6 Ke7 54. Rc6 Rd2 55. h6 Rf1 56. Bg2 Rff2 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.19"]
[Round "4"]
[White "Sunye Neto, Jaime"]
[Black "Boehm, Hans"]
[Result "0-1"]
[WhiteElo "2415"]
[BlackElo "2410"]
[ECO "D11"]
[EventDate "1980.01.15"]
[PlyCount "81"]

1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. d4 Bg4 5. cxd5 Nxd5 6. Be2 e6 7. O-O Bd6 8. h3 Bh5 9. Re1 Nd7 10. e4 N5b6 11. Bg5 Qc7 12. Nc3 Bf4 13. e5 Bxf3 14. Bxf4 Bxe2 15. Qxe2 Nf8 16. Rac1 Ng6 17. Nb5 Qe7 18. Nd6+ Kf8 19. Bd2 Kg8 20. f4 Qd7 21. g4 Ne7 22. Rf1 Nbc8 23. Bb4 Nxd6 24. Bxd6 h5 25. f5 hxg4 26. Bxe7 Qxe7 27. f6 Qf8 28. Qxg4 Rd8 29. Rc2 g6 30. Rg2 Qh6 31. Rf3 Qh4 32. Rb3 Qe1+ 33. Kh2 Rd7 34. Rbg3 Kf8 35. Qf4 Ke8 36. Rd2 Kd8 37. Kg2 Kc8 38. b4 a6 39. h4 Rxh4 40. Qxh4 Qxd2+ 41. Kh3 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.19"]
[Round "4"]
[White "Van der Wiel, John"]
[Black "Kovacevic, Vlatko"]
[Result "1/2-1/2"]
[WhiteElo "2465"]
[BlackElo "2510"]
[ECO "B05"]
[EventDate "1980.01.15"]
[PlyCount "80"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 e6 6. h3 Bh5 7. O-O Be7 8. c4 Nb6 9. Be3 O-O 10. Nc3 a5 11. exd6 cxd6 12. d5 Bxf3 13. Bxf3 e5 14. Be2 Na6 15. Nb5 Nd7 16. a3 Nc7 17. Nxc7 Qxc7 18. b4 f5 19. Qc2 g6 20. Rac1 b6 21. Rfd1 Qd8 22. c5 bxc5 23. bxc5 f4 24. cxd6 fxe3 25. dxe7 exf2+ 26. Kh2 Qxe7 27. d6 Qg5 28. Bf3 Rae8 29. Qxf2 e4 30. Qa2+ Kg7 31. Bg4 Ne5 32. d7 Nxg4+ 33. hxg4 Rd8 34. Qb2+ Kh6 35. Rh1 Rf6 36. Kg3+ Kg7 37. Rcf1 Qe3+ 38. Kh4 Qb6 39. Qxb6 Rxb6 40. Rd1 Rb3 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.20"]
[Round "5"]
[White "Alburt, Lev"]
[Black "Ligterink, Gert"]
[Result "1-0"]
[WhiteElo "2515"]
[BlackElo "2455"]
[ECO "E73"]
[EventDate "1980.01.15"]
[PlyCount "71"]

1. c4 g6 2. Nc3 Bg7 3. d4 d6 4. e4 Nf6 5. Be2 O-O 6. Bg5 h6 7. Be3 e5 8. d5 Nbd7 9. h4 Nc5 10. Qc2 c6 11. b4 cxd5 12. cxd5 Ncxe4 13. Nxe4 Nxd5 14. Qd2 Nxe3 15. fxe3 Qb6 16. Nf3 Be6 17. h5 g5 18. Nfxg5 hxg5 19. h6 Bh8 20. h7+ Kg7 21. Nxg5 Kf6 22. Nxe6 fxe6 23. O-O+ Ke7 24. Rxf8 Rxf8 25. Rf1 Rf4 26. Bh5 Rxf1+ 27. Kxf1 e4 28. Kg1 Qb5 29. Bg6 Qe5 30. Qc2 Qa1+ 31. Kh2 Be5+ 32. g3 Kd8 33. Qxe4 Qxa2+ 34. Kh3 Qd5 35. Qh4+ Kd7 36. Be4 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.20"]
[Round "5"]
[White "Biyiasas, Peter"]
[Black "Van der Wiel, John"]
[Result "1-0"]
[WhiteElo "2485"]
[BlackElo "2465"]
[ECO "E92"]
[EventDate "1980.01.15"]
[PlyCount "113"]

1. Nf3 g6 2. c4 Bg7 3. Nc3 d6 4. d4 Nf6 5. e4 O-O 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5 Re8 10. Nd5 Nxd5 11. cxd5 c6 12. Bc4 cxd5 13. Bxd5 h6 14. Be3 Nd7 15. Nd2 Nf6 16. Bb3 Ng4 17. Bc5 Bf8 18. Rc1 Be6 19. Ke2 Rad8 20. Bxa7 Bxb3 21. axb3 f5 22. f3 Nf6 23. Rhd1 Rd7 24. Bf2 Bb4 25. Rc4 Bxd2 26. Rxd2 Rxd2+ 27. Kxd2 fxe4 28. fxe4 b5 29. Rc6 Nxe4+ 30. Ke3 Nxf2 31. Kxf2 Kf7 32. Rc5 Kf6 33. Kf3 Rd8 34. Rxb5 Rd2 35. Rb6+ Kf5 36. g4+ Kg5 37. h4+ Kxh4 38. Rxg6 Rd3+ 39. Ke4 Rxb3 40. Kf5 Rf3+ 41. Kxe5 Rb3 42. Rxh6+ Kxg4 43. Rh2 Kg3 44. Rc2 Rb4 45. Kd5 Kf3 46. Kc5 Rb8 47. Rh2 Rc8+ 48. Kd6 Rb8 49. Kc7 Rb4 50. Kc6 Rb8 51. b3 Kg4 52. Rb2 Rb4 53. Kc5 Rf4 54. b4 Rf5+ 55. Kc6 Rf6+ 56. Kb7 Rf7+ 57. Ka6 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.20"]
[Round "5"]
[White "Boehm, Hans"]
[Black "Seirawan, Yasser"]
[Result "0-1"]
[WhiteElo "2410"]
[BlackElo "2510"]
[ECO "B19"]
[EventDate "1980.01.15"]
[PlyCount "76"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. h4 h6 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Qc7 11. c4 Ngf6 12. Bd2 e6 13. Ne4 Be7 14. O-O-O Rd8 15. Nxf6+ Nxf6 16. Qc2 O-O 17. Rh4 c5 18. Be3 a6 19. Kb1 b5 20. cxb5 axb5 21. dxc5 Rxd1+ 22. Qxd1 Bxc5 23. Qc2 Rc8 24. Bxc5 Qxc5 25. Qxc5 Rxc5 26. b4 Rd5 27. Kb2 e5 28. Kc3 Kf8 29. Nd2 Ke7 30. g3 Ke6 31. Ne4 Rd4 32. Nc5+ Kd5 33. Rxd4+ exd4+ 34. Kd3 Ng4 35. Ke2 Kc4 36. a3 Kc3 37. f3 Ne5 38. f4 Nc4 {Time} 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.20"]
[Round "5"]
[White "Byrne, Robert"]
[Black "Browne, Walter Shawn"]
[Result "1/2-1/2"]
[WhiteElo "2530"]
[BlackElo "2540"]
[ECO "B92"]
[EventDate "1980.01.15"]
[PlyCount "44"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. Bg5 Be6 10. f4 exf4 11. Bxf4 Nc6 12. Qe1 Nd7 13. Rd1 Nce5 14. Nd5 Bxd5 15. Rxd5 Nf6 16. Rd1 Qb6+ 17. Kh1 Nxe4 18. Bf3 Ng5 19. Bd5 Rae8 20. Bxe5 dxe5 21. Qxe5 Bf6 22. Qf5 Re5 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.20"]
[Round "5"]
[White "Kovacevic, Vlatko"]
[Black "Sigurjonsson, Gudmundur"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2475"]
[ECO "A48"]
[EventDate "1980.01.15"]
[PlyCount "122"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. e3 c5 5. Nbd2 b6 6. c3 d6 7. Bd3 O-O 8. O-O Ba6 9. Bxa6 Nxa6 10. a4 Qd7 11. Qe2 Qb7 12. Rfd1 Rfc8 13. Bxf6 Bxf6 14. d5 Nc7 15. e4 a5 16. Ra3 b5 17. Rb3 b4 18. c4 e5 19. h4 Rf8 20. h5 Ne8 21. Nh2 Qd7 22. Ra1 Ng7 23. hxg6 fxg6 24. Qg4 Qxg4 25. Nxg4 Nh5 26. g3 Ra7 27. Kg2 Kg7 28. Rf3 Re8 29. Rh1 Bg5 30. Nb3 Rc8 31. Rd3 Re8 32. Rdd1 Rc8 33. Rh3 Re8 34. Rdh1 Rc8 35. Kf1 Re8 36. Ke2 Rc8 37. Nh2 Re8 38. Nf3 Bd8 39. Nc1 Rf7 40. Nd3 h6 41. Nd2 Ref8 42. g4 Nf4+ 43. Nxf4 Rxf4 44. Rxh6 Rxf2+ 45. Ke1 R2f7 46. Rh7+ Kf6 47. Nf3 Rxh7 48. Rxh7 Rf7 49. Rh8 Rd7 50. Kf2 Kg7 51. Re8 Kf7 52. Re6 Be7 53. Kg3 Rd8 54. Nh4 Rg8 55. g5 Rg7 56. Kg4 Rg8 57. Nf3 Rh8 58. Nh4 Rg8 59. b3 Rg7 60. Nf3 Rh7 61. Nh4 Rg7 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.20"]
[Round "5"]
[White "Ree, Hans"]
[Black "Sunye Neto, Jaime"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2415"]
[ECO "E39"]
[EventDate "1980.01.15"]
[PlyCount "41"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. a3 Bxc5 7. Nf3 d5 8. Bg5 dxc4 9. e3 Nbd7 10. Bxc4 a6 11. Rd1 Be7 12. O-O Qe8 13. Rd2 h6 14. Bf4 b5 15. Ba2 Bb7 16. Ne5 Nxe5 17. Bxe5 Rc8 18. Bb1 Be4 19. Qd1 Bxb1 20. Qxb1 Qc6 21. Rfd1 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.20"]
[Round "5"]
[White "Timman, Jan"]
[Black "Kortschnoj, Viktor"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2695"]
[ECO "E12"]
[EventDate "1980.01.15"]
[PlyCount "77"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 c5 5. e3 d6 6. Nc3 Be7 7. Bd3 a6 8. O-O Bb7 9. b4 Nbd7 10. Bb2 O-O 11. d5 exd5 12. cxd5 b5 13. e4 Re8 14. Rb1 Rc8 15. Ba1 Ba8 16. h3 Ne5 17. bxc5 Nxd3 18. cxd6 Qxd6 19. Qxd3 Qxa3 20. Nd4 b4 21. Rb3 Qa5 22. Nce2 Bf8 23. Ng3 Nxe4 24. Nxe4 Qxd5 25. f3 a5 26. Nf5 Re6 27. Qxd5 Bxd5 28. Rd3 Bxe4 29. fxe4 f6 30. e5 fxe5 31. Rd5 a4 32. Bxe5 b3 33. Rb5 a3 34. Bxg7 Bxg7 35. Nxg7 Kxg7 36. Rxb3 Ra8 37. Ra1 a2 38. Rb2 Rea6 39. Rf2 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.22"]
[Round "6"]
[White "Biyiasas, Peter"]
[Black "Timman, Jan"]
[Result "1-0"]
[WhiteElo "2485"]
[BlackElo "2600"]
[ECO "B50"]
[EventDate "1980.01.15"]
[PlyCount "69"]

1. e4 c5 2. Nf3 d6 3. Nc3 a6 4. g3 Nc6 5. Bg2 Bg4 6. h3 Bxf3 7. Qxf3 g6 8. e5 dxe5 9. Qxc6+ bxc6 10. Bxc6+ Qd7 11. Bxd7+ Kxd7 12. Na4 Kc6 13. b3 e6 14. Bb2 f6 15. O-O-O Bd6 16. Rde1 Ne7 17. Re4 Nf5 18. Rc4 Rab8 19. Re1 Rb4 20. Ree4 Rhb8 21. Ba3 R4b5 22. c3 Bf8 23. Re2 Kd5 24. g4 Nd6 25. Rxc5+ Rxc5 26. Bxc5 Bh6 27. Kc2 Bf4 28. Be3 g5 29. d4 exd4 30. Bxf4 gxf4 31. c4+ Nxc4 32. bxc4+ Kxc4 33. Rxe6 d3+ 34. Kd2 Rb4 35. Re4+ 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.22"]
[Round "6"]
[White "Browne, Walter Shawn"]
[Black "Alburt, Lev"]
[Result "1-0"]
[WhiteElo "2540"]
[BlackElo "2515"]
[ECO "E12"]
[EventDate "1980.01.15"]
[PlyCount "151"]

1. d4 Nf6 2. Nf3 b6 3. c4 Bb7 4. Nc3 e6 5. a3 d5 6. cxd5 exd5 7. Bg5 Be7 8. Bxf6 Bxf6 9. g3 O-O 10. Bg2 Nc6 11. b4 Nxd4 12. Nxd4 c5 13. Ncb5 a6 14. Rb1 axb5 15. Nxb5 c4 16. O-O Qd7 17. a4 Bc6 18. Qc2 Bxb5 19. axb5 Qxb5 20. Qf5 Rad8 21. Rfd1 Qd7 22. Qxd7 Rxd7 23. Bxd5 Rc8 24. Rbc1 b5 25. Be4 Rxd1+ 26. Rxd1 c3 27. Bd3 Rd8 28. Rc1 Rd5 29. Kf1 Kf8 30. h4 Ke8 31. Ke1 Kd7 32. Kd1 Kc7 33. Kc2 Kb6 34. Kb3 Bd4 35. f3 h5 36. Rf1 Rd8 37. Be4 Bf6 38. Bd3 Rc8 39. Bc2 Rc4 40. Bd3 Rd4 41. Rb1 Rd8 42. Ra1 Rc8 43. Kc2 Rb8 44. Ra5 Kc7 45. Rxb5 Rxb5 46. Bxb5 Be5 47. Be8 f6 48. g4 hxg4 49. fxg4 Bg3 50. h5 Be1 51. Bg6 Kd6 52. Kb3 Kd5 53. Bd3 Ke5 54. b5 Kf4 55. Bf5 Ke3 56. b6 Kd2 57. b7 Bg3 58. Kc4 Bb8 59. Bd3 c2 60. Bxc2 Kxc2 61. e4 Kd2 62. Kd4 Bc7 63. Kd5 Kd3 64. g5 fxg5 65. e5 g4 66. e6 g3 67. e7 g2 68. e8=Q g1=Q 69. Qe4+ Kd2 70. Qb4+ Ke2 71. Qc4+ Kf2 72. Qxc7 Qg5+ 73. Qe5 Qg2+ 74. Qe4 Qg5+ 75. Kc4 Qc1+ 76. Kb3 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.22"]
[Round "6"]
[White "Kortschnoj, Viktor"]
[Black "Boehm, Hans"]
[Result "1-0"]
[WhiteElo "2695"]
[BlackElo "2410"]
[ECO "A34"]
[EventDate "1980.01.15"]
[PlyCount "81"]

1. c4 c5 2. Nf3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc6 6. Nc3 Nc7 7. d3 e5 8. O-O Be7 9. Nd2 Be6 10. Bxc6+ bxc6 11. Qa4 Qd7 12. Nc4 f6 13. Ne4 Bh3 14. Rd1 O-O 15. Na5 Nb5 16. Be3 Nd4 17. Bxd4 cxd4 18. Nxc6 Kh8 19. Rac1 Rfc8 20. Qa6 Bf8 21. b4 Rc7 22. b5 Rac8 23. f3 h5 24. Rc2 Qd5 25. Rdc1 Bd7 26. Ne7 Rxc2 27. Rxc2 Bxe7 28. Rxc8+ Bxc8 29. Qxc8+ Kh7 30. Qe8 Ba3 31. Qxh5+ Kg8 32. Qe8+ Kh7 33. Qb8 Qf7 34. Kf1 Qd7 35. g4 Qf7 36. Ng3 Qxa2 37. Qxa7 Qb1+ 38. Kg2 Bc1 39. Nh5 Bh6 40. Qf7 Kh8 41. g5 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.22"]
[Round "6"]
[White "Ligterink, Gert"]
[Black "Kovacevic, Vlatko"]
[Result "1/2-1/2"]
[WhiteElo "2455"]
[BlackElo "2510"]
[ECO "A93"]
[EventDate "1980.01.15"]
[PlyCount "75"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O Nbd7 7. Qc2 c6 8. b3 Ne4 9. Nbd2 f5 10. Bb2 Bf6 11. Ne1 b5 12. Nd3 bxc4 13. bxc4 Nxd2 14. Qxd2 Nb6 15. cxd5 Nc4 16. Qc2 cxd5 17. Bc3 Rf7 18. e3 Rc7 19. Rfc1 Rc6 20. Bb4 a5 21. Bc5 Ba6 22. Qd1 Rac8 23. Rab1 g5 24. Rb3 Bg7 25. Rcb1 h6 26. Bf1 Kh7 27. Nb2 Nxb2 28. R3xb2 Bxf1 29. Qxf1 Rxc5 30. dxc5 Bxb2 31. Rxb2 Rxc5 32. Qa6 Qc8 33. Qd6 Rc7 34. Rb6 Kg7 35. Qxe6 Qxe6 36. Rxe6 Rc2 37. a4 Ra2 38. Re5 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.22"]
[Round "6"]
[White "Seirawan, Yasser"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2520"]
[ECO "A14"]
[EventDate "1980.01.15"]
[PlyCount "51"]

1. c4 e6 2. Nf3 Nf6 3. b3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Bb2 d5 8. d3 c5 9. Nbd2 Nc6 10. e3 dxc4 11. Nxc4 b5 12. Nce5 Nxe5 13. Nxe5 Bxg2 14. Kxg2 Rc8 15. Rc1 Nd7 16. Nf3 Bf6 17. Bxf6 Nxf6 18. Qd2 Qb6 19. e4 Nd7 20. d4 Nf6 21. e5 Nd5 22. dxc5 Rxc5 23. Rxc5 Qxc5 24. Rc1 Qb6 25. Qd4 Qa6 26. a4 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.22"]
[Round "6"]
[White "Sunye Neto, Jaime"]
[Black "Byrne, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2415"]
[BlackElo "2530"]
[ECO "E18"]
[EventDate "1980.01.15"]
[PlyCount "80"]

1. c4 e6 2. Nf3 Nf6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. Nc3 O-O 7. d4 d5 8. Ne5 Na6 9. Be3 c5 10. Rc1 Rb8 11. cxd5 exd5 12. Qa4 Qe8 13. Qxe8 Rfxe8 14. Nb5 Nb4 15. a3 Nc6 16. Nxc6 Bxc6 17. Nc7 Rec8 18. Na6 Ra8 19. dxc5 Bb7 20. Nb4 bxc5 21. Nd3 c4 22. Ne5 Ne4 23. Bxe4 dxe4 24. Nxc4 Ba6 25. b3 Rab8 26. Bxa7 Rxb3 27. Nd2 Rxa3 28. Be3 Rxc1 29. Rxc1 f5 30. Kf1 Ra2 31. Ke1 Kf7 32. Rb1 Bf6 33. h4 h6 34. f3 exf3 35. exf3 Be5 36. Kf2 Bd4 37. Rd1 Bc3 38. Ke1 Bb7 39. Rc1 Be5 40. f4 Ra1 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.22"]
[Round "6"]
[White "Van der Wiel, John"]
[Black "Sigurjonsson, Gudmundur"]
[Result "1-0"]
[WhiteElo "2465"]
[BlackElo "2475"]
[ECO "B82"]
[EventDate "1980.01.15"]
[PlyCount "77"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Nbd7 7. Nf3 e6 8. Bd3 Be7 9. O-O O-O 10. Qe1 Nc5 11. Be3 Nxd3 12. cxd3 b5 13. Qg3 b4 14. Ne2 Bb7 15. Ned4 Rc8 16. Qh3 Nd7 17. Rf2 Nc5 18. Rd1 a5 19. g4 Ba6 20. Rfd2 a4 21. Ne1 g6 22. Rg2 e5 23. Ndf3 exf4 24. Bxf4 d5 25. e5 d4 26. Qh6 Ne6 27. Rg3 Nxf4 28. Qxf4 f6 29. Qh6 Qd5 30. Nh4 Rf7 31. Nxg6 hxg6 32. exf6 Rxf6 33. Rh3 Qe5 34. Ng2 Rc2 35. Qh8+ Kf7 36. Rh7+ Ke6 37. Nf4+ Qxf4 38. Re1+ Kd5 39. Qa8+ {Time} 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.23"]
[Round "7"]
[White "Alburt, Lev"]
[Black "Sunye Neto, Jaime"]
[Result "1/2-1/2"]
[WhiteElo "2515"]
[BlackElo "2415"]
[ECO "B44"]
[EventDate "1980.01.15"]
[PlyCount "72"]

1. c4 Nf6 2. Nc3 e6 3. e4 c5 4. Nf3 Nc6 5. d4 cxd4 6. Nxd4 Bb4 7. Nxc6 bxc6 8. e5 Ne4 9. Qg4 Nxc3 10. a3 Bf8 11. bxc3 Qa5 12. Qg3 g6 13. Bf4 Bg7 14. Rc1 Ba6 15. Qe3 O-O 16. Be2 Rfd8 17. O-O d6 18. Bg5 Rd7 19. exd6 Rxd6 20. Be7 Rd7 21. Bb4 Qe5 22. Qxe5 Bxe5 23. Rfe1 Rc8 24. Rcd1 Rxd1 25. Bxd1 Bc7 26. Bc5 Bxc4 27. Bxa7 Ba5 28. Bf3 Bd5 29. Rc1 Bxf3 30. gxf3 Rd8 31. Kg2 e5 32. Bc5 Rd5 33. Bb4 Bxb4 34. cxb4 Rd3 35. Rxc6 Rxa3 36. Rc5 Rb3 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.23"]
[Round "7"]
[White "Boehm, Hans"]
[Black "Biyiasas, Peter"]
[Result "0-1"]
[WhiteElo "2410"]
[BlackElo "2485"]
[ECO "E72"]
[EventDate "1980.01.15"]
[PlyCount "122"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. g3 O-O 6. Bg2 Nc6 7. Nge2 e5 8. d5 Ne7 9. O-O Nh5 10. Be3 f5 11. f3 f4 12. Bf2 g5 13. g4 Nf6 14. h3 h5 15. Nc1 hxg4 16. hxg4 Ng6 17. Nd3 Rf7 18. c5 Bf8 19. b4 Rh7 20. Rc1 Qd7 21. Be1 Qg7 22. Kf2 Qh8 23. Rg1 Rh2 24. Kf1 Bd7 25. Bf2 Be7 26. a4 Rf8 27. c6 bxc6 28. dxc6 Be6 29. Nb5 Bd8 30. Nxa7 Nxg4 31. fxg4 f3 32. Ke1 fxg2 33. Kd2 Nf4 34. Be3 Rh3 35. Rc3 Rg3 36. Qe1 Qh3 37. Nf2 Qh2 38. b5 Nh3 39. Nxh3 Qxh3 40. b6 Rf1 41. b7 Rxe1 42. b8=Q Rgxe3 43. Qxd8+ Kf7 44. Qxc7+ Kg6 45. Rxe1 g1=Q 46. Rcxe3 Qf2+ 47. Kd3 Qhg2 48. R1e2 Qgf1 49. Kd2 Q1e1+ 50. Kc2 Qfxe2+ 51. Rxe2 Qxe2+ 52. Kc1 Qe1+ 53. Kc2 Qxe4+ 54. Kc1 Qc4+ 55. Kb2 Qb4+ 56. Kc1 Qa3+ 57. Kd2 Qb2+ 58. Kd3 e4+ 59. Kxe4 Qe2+ 60. Kd4 Qd2+ 61. Ke4 Bd5# 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.23"]
[Round "7"]
[White "Byrne, Robert"]
[Black "Seirawan, Yasser"]
[Result "1/2-1/2"]
[WhiteElo "2530"]
[BlackElo "2510"]
[ECO "B19"]
[EventDate "1980.01.15"]
[PlyCount "44"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Qc7 11. Bd2 e6 12. O-O-O Ngf6 13. Qe2 c5 14. Nf5 O-O-O 15. Ne3 Nb6 16. Ba5 Kb8 17. Kb1 cxd4 18. Nxd4 Bc5 19. Nb5 Qc6 20. Bc3 a6 21. Nd4 Qc7 22. Nf3 Ka8 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.23"]
[Round "7"]
[White "Kovacevic, Vlatko"]
[Black "Browne, Walter Shawn"]
[Result "0-1"]
[WhiteElo "2510"]
[BlackElo "2540"]
[ECO "D02"]
[EventDate "1980.01.15"]
[PlyCount "75"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 b6 4. e3 Bb7 5. Nbd2 Be7 6. h3 O-O 7. Bd3 d5 8. Ne5 Nbd7 9. Qf3 c5 10. h4 cxd4 11. exd4 Nxe5 12. dxe5 Nd7 13. Bxh7+ Kxh7 14. Qh5+ Kg8 15. Nf3 f6 16. Ng5 fxg5 17. hxg5 Bb4+ 18. c3 Rxf4 19. Qh8+ Kf7 20. g6+ Ke7 21. Qxg7+ Ke8 22. Qh8+ Rf8 23. g7 Qg5 24. cxb4 Qxg2 25. O-O-O Qg6 26. b3 Qg5+ 27. Kb2 Qxe5+ 28. Ka3 Rxh8 29. gxh8=Q+ Qxh8 30. Rxh8+ Ke7 31. Rxa8 Bxa8 32. b5 e5 33. Rh1 d4 34. Rh7+ Ke6 35. Kb4 Bf3 36. a4 Nf6 37. Rxa7 Nd5+ 38. Kc4 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.23"]
[Round "7"]
[White "Ree, Hans"]
[Black "Kortschnoj, Viktor"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2695"]
[ECO "A57"]
[EventDate "1980.01.15"]
[PlyCount "40"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3 g6 6. Nc3 Bg7 7. Nf3 d6 8. bxa6 O-O 9. Be2 Bxa6 10. O-O Qa5 11. e4 Nbd7 12. Re1 Rfb8 13. Bxa6 Qxa6 14. e5 dxe5 15. Nxe5 Nxe5 16. Rxe5 Qd6 17. Re1 Rd8 18. Bg5 Nxd5 19. Nxd5 Qxd5 20. Bxe7 Qxd1 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.23"]
[Round "7"]
[White "Sigurjonsson, Gudmundur"]
[Black "Ligterink, Gert"]
[Result "1-0"]
[WhiteElo "2475"]
[BlackElo "2455"]
[ECO "B88"]
[EventDate "1980.01.15"]
[PlyCount "81"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Bb3 Be7 8. Be3 a6 9. f4 O-O 10. Qe2 Nxd4 11. Bxd4 b5 12. O-O-O b4 13. Na4 Bb7 14. Bxf6 Bxf6 15. Nc5 Bc6 16. e5 Bxe5 17. Nxe6 fxe6 18. Bxe6+ Kh8 19. fxe5 Qg5+ 20. Qd2 Qxd2+ 21. Rxd2 dxe5 22. Re1 Rad8 23. Rxd8 Rxd8 24. Rxe5 Re8 25. Re2 Bxg2 26. Bc4 Rxe2 27. Bxe2 a5 28. Kd2 Bh3 29. Ke3 Kg8 30. Kd4 Kf7 31. Kc5 Ke6 32. c4 bxc3 33. bxc3 g6 34. c4 h5 35. Kb6 a4 36. c5 Kd5 37. c6 Kd4 38. c7 a3 39. Bf1 Be6 40. h4 Kc3 41. Kc5 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.23"]
[Round "7"]
[White "Timman, Jan"]
[Black "Van der Wiel, John"]
[Result "1-0"]
[WhiteElo "2600"]
[BlackElo "2465"]
[ECO "E14"]
[EventDate "1980.01.15"]
[PlyCount "77"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 c5 5. e3 cxd4 6. exd4 d5 7. Nc3 Be7 8. cxd5 Nxd5 9. Bb5+ Bd7 10. Bd3 Bc6 11. O-O Nd7 12. Re1 Rc8 13. Nxd5 Bxd5 14. Ba6 Ra8 15. Bf4 O-O 16. Rc1 Nb8 17. Rc8 Qxc8 18. Bxc8 Rxc8 19. Ne5 Nc6 20. Ng4 Rd8 21. Qd3 Ba2 22. Ra1 Rxd4 23. Nh6+ Kh8 24. Qc3 Bc5 25. Bd6 Bd5 26. Bxc5 bxc5 27. Nxf7+ Kg8 28. Nd6 Rg4 29. f3 Nd4 30. Kf2 Rf8 31. Re1 Rh4 32. Qxc5 Nb3 33. Qxa7 Rxh2 34. Ne4 e5 35. Qd7 Bxe4 36. Rxe4 Nd4 37. Qd5+ Kh8 38. Qxe5 Nxf3 39. Rf4 {Time} 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.24"]
[Round "8"]
[White "Biyiasas, Peter"]
[Black "Ree, Hans"]
[Result "0-1"]
[WhiteElo "2485"]
[BlackElo "2520"]
[ECO "A04"]
[EventDate "1980.01.15"]
[PlyCount "115"]

1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O Nge7 7. Nbd2 O-O 8. Re1 d6 9. c3 b6 10. d4 cxd4 11. Nxd4 Bb7 12. Nxc6 Bxc6 13. Nf3 a6 14. Nd4 Bb7 15. a4 Qc7 16. Bg5 h6 17. Bxe7 Qxe7 18. Qb3 Qc7 19. Nc2 Rfd8 20. Ne3 Rab8 21. Qc4 Qxc4 22. Nxc4 b5 23. Ne3 b4 24. cxb4 Ba8 25. Nc2 Rdc8 26. Re2 Bxb2 27. Rb1 Bc3 28. b5 Rc4 29. Rb3 Ba5 30. e5 d5 31. Ra3 axb5 32. axb5 Rxb5 33. h4 Bc6 34. Ne3 Rc1+ 35. Kh2 h5 36. Rc2 Rxc2 37. Nxc2 Rc5 38. Nd4 Bc3 39. Nxc6 Rxc6 40. f4 Be1 41. Ra1 Bf2 42. Ra2 Bd4 43. Ra4 Rc4 44. Ra2 Rc3 45. Bf1 Kg7 46. Kg2 Rc1 47. Be2 Bc3 48. g4 hxg4 49. Bxg4 Bd4 50. h5 Rg1+ 51. Kf3 g5 52. fxg5 Bxe5 53. Ra4 d4 54. Bxe6 fxe6 55. Ra7+ Kf8 56. Ra8+ Ke7 57. Ra7+ Kd6 58. Ra6+ 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.24"]
[Round "8"]
[White "Browne, Walter Shawn"]
[Black "Sigurjonsson, Gudmundur"]
[Result "1/2-1/2"]
[WhiteElo "2540"]
[BlackElo "2475"]
[ECO "D55"]
[EventDate "1980.01.15"]
[PlyCount "33"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 Nd7 8. Bd3 Qd8 9. O-O Be7 10. Rc1 O-O 11. Qe2 a6 12. a4 dxc4 13. Bxc4 b5 14. Bd3 Bb7 15. Be4 Qb6 16. Nd2 Rab8 17. Rfd1 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.24"]
[Round "8"]
[White "Kortschnoj, Viktor"]
[Black "Byrne, Robert"]
[Result "1-0"]
[WhiteElo "2695"]
[BlackElo "2530"]
[ECO "E64"]
[EventDate "1980.01.15"]
[PlyCount "90"]

1. c4 g6 2. d4 Nf6 3. Nc3 Bg7 4. g3 O-O 5. Bg2 d6 6. Nf3 c5 7. d5 Na6 8. O-O Nc7 9. a4 Rb8 10. e4 Bg4 11. h3 Bxf3 12. Bxf3 a6 13. a5 e6 14. Bf4 exd5 15. exd5 b5 16. axb6 Rxb6 17. Na4 Rb4 18. b3 Qd7 19. Kg2 Rfb8 20. Ra3 h5 21. Bd2 R4b7 22. Qc2 Nh7 23. Nc3 Bd4 24. Bd1 Re8 25. Qd3 Rbb8 26. Ra2 Re7 27. g4 hxg4 28. hxg4 f5 29. Ne2 Be5 30. f4 Bh8 31. Ng3 Rf8 32. Rh1 Bd4 33. gxf5 gxf5 34. Bc1 Rg7 35. Kf1 Rf6 36. Rg2 Kf8 37. Bc2 Rfg6 38. Rhh2 Nf6 39. Nxf5 Rxg2 40. Rxg2 Rxg2 41. Kxg2 Ba1 42. Qh3 Ng8 43. Bd2 Ne8 44. b4 cxb4 45. Bxb4 Bf6 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.24"]
[Round "8"]
[White "Seirawan, Yasser"]
[Black "Alburt, Lev"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2515"]
[ECO "A20"]
[EventDate "1980.01.15"]
[PlyCount "120"]

1. c4 c5 2. g3 e6 3. Bg2 d5 4. cxd5 exd5 5. d4 cxd4 6. Nf3 Bb4+ 7. Nbd2 Nc6 8. O-O d3 9. e3 Nf6 10. Nb3 Bf5 11. Nh4 Be4 12. a3 Bxg2 13. Kxg2 Bd6 14. Qxd3 O-O 15. Nd4 Qb6 16. Nhf3 Rfe8 17. b3 Nxd4 18. Nxd4 Be5 19. Bb2 Ne4 20. Rac1 Rad8 21. Rfe1 h5 22. Qe2 h4 23. Nf3 Bxb2 24. Qxb2 Nc5 25. Qc2 Nxb3 26. Rb1 Qf6 27. Nxh4 Na5 28. Qc7 b6 29. Qxa7 Nc4 30. Nf3 Qf5 31. Rbd1 g5 32. Qb7 Rd7 33. Qa6 Rd6 34. Qb5 Re7 35. a4 g4 36. Nh4 Qe4+ 37. Kg1 Re5 38. Rf1 Qc2 39. Rd4 Rg5 40. Qe8+ Kg7 41. Rf4 Ne5 42. Qe7 Rdg6 43. e4 Qc6 44. Nf5+ Rxf5 45. exf5 Qd6 46. f6+ Rxf6 47. Qxf6+ Qxf6 48. Rxf6 Kxf6 49. Rd1 Ke6 50. Kf1 Nc4 51. Ke2 Ke5 52. f3 f5 53. fxg4 fxg4 54. Rf1 Kd4 55. Rf4+ Kc3 56. Rxg4 d4 57. Rg8 d3+ 58. Ke1 Nd6 59. Kd1 Ne4 60. Rf8 Kd4 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.24"]
[Round "8"]
[White "Sunye Neto, Jaime"]
[Black "Kovacevic, Vlatko"]
[Result "1/2-1/2"]
[WhiteElo "2415"]
[BlackElo "2510"]
[ECO "A21"]
[EventDate "1980.01.15"]
[PlyCount "111"]

1. c4 f5 2. g3 Nf6 3. Bg2 d6 4. Nc3 e5 5. d4 c6 6. e4 exd4 7. Qxd4 Na6 8. Nge2 Nb4 9. Qd2 Be6 10. exf5 Bxc4 11. O-O d5 12. b3 Ba6 13. a3 Nd3 14. Nd4 Kf7 15. Qc2 Bd6 16. Ne6 Qd7 17. Bg5 Rac8 18. Rfd1 Nc5 19. Nxc5 Bxc5 20. b4 Be7 21. b5 Bxb5 22. Nxb5 cxb5 23. Qb3 Qxf5 24. Bxf6 Qxf6 25. Rxd5 Rc3 26. Qxb5 g6 27. Rd7 Rhc8 28. Bd5+ Kf8 29. Kg2 Rc2 30. Rf1 Rb2 31. Qd3 Rcc2 32. Qf3 Qxf3+ 33. Kxf3 Rd2 34. Rxb7 Rd3+ 35. Kg2 Rxb7 36. Bxb7 Bxa3 37. Bf3 Bc5 38. Rd1 Rc3 39. Rd8+ Ke7 40. Rh8 Rc2 41. Rxh7+ Kf6 42. Kh3 Bxf2 43. Be4 Re2 44. Bb1 Rb2 45. Bd3 Bg1 46. Kg4 Rb4+ 47. Kf3 g5 48. Rh6+ Ke5 49. Rg6 Kd4 50. Bf5 Rb3+ 51. Kg2 Be3 52. h4 Rb2+ 53. Kh3 Ke5 54. Bd7 gxh4 55. Re6+ Kd4 56. gxh4 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.24"]
[Round "8"]
[White "Timman, Jan"]
[Black "Boehm, Hans"]
[Result "1-0"]
[WhiteElo "2600"]
[BlackElo "2410"]
[ECO "C63"]
[EventDate "1980.01.15"]
[PlyCount "39"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 fxe4 5. Nxe4 d5 6. Nxe5 dxe4 7. Nxc6 Qg5 8. Qe2 Nf6 9. f4 Qh4+ 10. g3 Qh3 11. Ne5+ c6 12. Bc4 Bc5 13. d3 Ng4 14. Nf7 Bf2+ 15. Kd1 e3 16. Qf3 Nh6 17. Qe4+ Kf8 18. Bxe3 Bg4+ 19. Kd2 Re8 20. Ne5 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.24"]
[Round "8"]
[White "Van der Wiel, John"]
[Black "Ligterink, Gert"]
[Result "1-0"]
[WhiteElo "2465"]
[BlackElo "2455"]
[ECO "B84"]
[EventDate "1980.01.15"]
[PlyCount "63"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 a6 7. f4 Nbd7 8. Bf3 e5 9. Nf5 Qc7 10. Ne3 exf4 11. Ned5 Nxd5 12. Nxd5 Qd8 13. Bxf4 Nb6 14. Qd4 Nxd5 15. exd5 Qf6 16. Qxf6 gxf6 17. O-O Bf5 18. c4 Kd7 19. Rac1 Rc8 20. Be3 Rg8 21. Bh5 Be4 22. g3 Ke7 23. Bf3 Bxf3 24. Rxf3 Rg4 25. Bf4 Kd7 26. Rb3 Rc7 27. Rb6 Kc8 28. b4 Rd7 29. c5 dxc5 30. bxc5 Rxd5 31. c6 Rd1+ 32. Kg2 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.26"]
[Round "9"]
[White "Alburt, Lev"]
[Black "Kortschnoj, Viktor"]
[Result "1/2-1/2"]
[WhiteElo "2515"]
[BlackElo "2695"]
[ECO "E12"]
[EventDate "1980.01.15"]
[PlyCount "46"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 c5 5. e3 a6 6. Be2 Bb7 7. O-O Be7 8. Nc3 cxd4 9. Nxd4 O-O 10. Qc2 Qc7 11. Rd1 Nc6 12. Nxc6 Bxc6 13. b3 Qb7 14. f3 b5 15. cxb5 axb5 16. a4 Rfc8 17. Qd3 b4 18. Nb1 Ne4 19. fxe4 Bxe4 20. Bf3 Bxf3 21. gxf3 Qxf3 22. Rf1 Rxc1 23. Rxc1 Bg5 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.26"]
[Round "9"]
[White "Boehm, Hans"]
[Black "Van der Wiel, John"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2465"]
[ECO "E92"]
[EventDate "1980.01.15"]
[PlyCount "92"]

1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5 Re8 10. Nd5 Nxd5 11. cxd5 c6 12. Bc4 cxd5 13. Bxd5 Na6 14. Ke2 Nc7 15. Bb3 Bd7 16. Rac1 Ne6 17. Rhd1 Bc6 18. Bd5 Bxd5 19. exd5 e4 20. dxe6 exf3+ 21. Kxf3 Rxe6 22. Rc7 Ra6 23. Rxb7 Rxa2 24. b3 Ra5 25. Be3 h5 26. h3 Rf5+ 27. Ke2 a5 28. g4 hxg4 29. hxg4 Rf6 30. Rd4 Re8 31. Kd3 Bf8 32. Rd5 Bb4 33. Rc7 Be1 34. f4 Rb8 35. Ke2 Bg3 36. Rc4 Re6 37. Rd3 Re7 38. Kf3 Be1 39. Rc1 Bb4 40. Rcd1 Reb7 41. Rd8+ Rxd8 42. Rxd8+ Kg7 43. Bd4+ f6 44. g5 Be7 45. Ra8 Kf7 46. gxf6 Bxf6 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.26"]
[Round "9"]
[White "Byrne, Robert"]
[Black "Biyiasas, Peter"]
[Result "1/2-1/2"]
[WhiteElo "2530"]
[BlackElo "2485"]
[ECO "C92"]
[EventDate "1980.01.15"]
[PlyCount "53"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Bb7 10. d4 Re8 11. Bg5 h6 12. Bh4 Bf8 13. Nbd2 g6 14. a4 Bg7 15. Bxf6 Bxf6 16. Bd5 Na5 17. Bxb7 Nxb7 18. Qe2 Qd7 19. axb5 axb5 20. Nf1 Bg7 21. dxe5 dxe5 22. Ne3 c6 23. Qc2 Nc5 24. b4 Ne6 25. g3 Rxa1 26. Rxa1 h5 27. Rd1 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.26"]
[Round "9"]
[White "Kovacevic, Vlatko"]
[Black "Seirawan, Yasser"]
[Result "0-1"]
[WhiteElo "2510"]
[BlackElo "2510"]
[ECO "B07"]
[EventDate "1980.01.15"]
[PlyCount "66"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. g4 c6 6. g5 Nfd7 7. h4 b5 8. h5 Rg8 9. hxg6 hxg6 10. Nf3 b4 11. Nb1 a5 12. a4 c5 13. d5 Nb6 14. c4 Kd7 15. Nbd2 Rh8 16. Rg1 Kc7 17. Rb1 Rh3 18. b3 Qh8 19. Nf1 N8d7 20. Bf4 Ne5 21. Nxe5 Bxe5 22. Bxe5 Qxe5 23. f3 Bd7 24. Qc2 Qd4 25. Rg2 Rh1 26. Rf2 Qh8 27. f4 Qh4 28. Rd1 f6 29. gxf6 exf6 30. e5 fxe5 31. fxe5 Rf8 32. exd6+ Kb7 33. Bd3 Re8+ 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.26"]
[Round "9"]
[White "Ligterink, Gert"]
[Black "Browne, Walter Shawn"]
[Result "0-1"]
[WhiteElo "2455"]
[BlackElo "2540"]
[ECO "E15"]
[EventDate "1980.01.15"]
[PlyCount "112"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 c6 8. O-O d5 9. Nc3 Nbd7 10. Bf4 Rc8 11. Qd3 dxc4 12. bxc4 Nd5 13. Rfd1 O-O 14. e4 Nxf4 15. gxf4 Kh8 16. e5 f5 17. exf6 Rxf6 18. Ne5 Nxe5 19. fxe5 Rg6 20. Ne4 Qf8 21. Rac1 Qf4 22. Ng3 Rf8 23. Rc2 Qh4 24. Qe3 Rh6 25. h3 Rd8 26. Qe4 Qxe4 27. Bxe4 Rh4 28. Kg2 Bc5 29. d5 cxd5 30. cxd5 exd5 31. Rxd5 Rxd5 32. Bxd5 Bd3 33. Rd2 Rd4 34. Bb3 g6 35. f3 Kg7 36. Ne2 Bxe2 37. Rxe2 a5 38. a4 Rb4 39. Bc2 Kf7 40. Kg3 Ke6 41. f4 b5 42. axb5 a4 43. Bd1 a3 44. Ra2 Rxb5 45. Bc2 Kd5 46. h4 Be7 47. h5 Rb6 48. hxg6 hxg6 49. Kg4 Kd4 50. Ba4 Rb1 51. Be8 Rg1+ 52. Kh3 Ke4 53. Bf7 Kxf4 54. Re2 Kf3 55. Bc4 Rc1 56. Ba6 Rh1+ 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.26"]
[Round "9"]
[White "Ree, Hans"]
[Black "Timman, Jan"]
[Result "0-1"]
[WhiteElo "2520"]
[BlackElo "2600"]
[ECO "E15"]
[EventDate "1980.01.15"]
[PlyCount "64"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 d5 8. cxd5 Nxd5 9. Nc3 O-O 10. Nxd5 exd5 11. O-O Nd7 12. Bf4 Re8 13. Rc1 c5 14. dxc5 Bxc5 15. Rc2 Nf6 16. Ne1 Ne4 17. Nd3 d4 18. Re1 Rc8 19. Bh3 Nc3 20. Qd2 Rc6 21. Ne5 Rf6 22. Nd3 Bb7 23. b4 Bf8 24. Bg4 Qd5 25. f3 Rc6 26. a3 f5 27. Bh3 h6 28. g4 fxg4 29. Bxg4 Rg6 30. e4 dxe3 31. Qxc3 Rxg4+ 32. Bg3 Qxf3 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.26"]
[Round "9"]
[White "Sigurjonsson, Gudmundur"]
[Black "Sunye Neto, Jaime"]
[Result "1/2-1/2"]
[WhiteElo "2475"]
[BlackElo "2415"]
[ECO "B92"]
[EventDate "1980.01.15"]
[PlyCount "67"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. Bg5 Be6 10. f4 exf4 11. Bxf4 Nc6 12. Kh1 Rc8 13. Qe1 Nd7 14. Rd1 Nde5 15. Nd5 Re8 16. c4 Bg5 17. Bg3 Bxd5 18. Rxd5 Qe7 19. a3 Rcd8 20. Qf2 Bf6 21. Rfd1 Ng6 22. Bxd6 Qxe4 23. Bd3 Qe3 24. Qxe3 Rxe3 25. Nc5 Bxb2 26. Nxb7 Rde8 27. h3 Nge5 28. a4 Nxd3 29. R5xd3 h5 30. Rxe3 Rxe3 31. Rb1 Bd4 32. Bc5 Rc3 33. Bxd4 Nxd4 34. Nd6 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.27"]
[Round "10"]
[White "Biyiasas, Peter"]
[Black "Alburt, Lev"]
[Result "0-1"]
[WhiteElo "2485"]
[BlackElo "2515"]
[ECO "A08"]
[EventDate "1980.01.15"]
[PlyCount "90"]

1. Nf3 Nf6 2. g3 c5 3. Bg2 Nc6 4. O-O d5 5. d3 e5 6. e4 Be7 7. Nc3 d4 8. Ne2 h5 9. c4 Ng4 10. h3 Nh6 11. Nh2 g5 12. f4 f6 13. f5 a6 14. Bf3 Nf7 15. Kg2 b5 16. b3 Kd7 17. Ng1 h4 18. Bh5 Nd6 19. gxh4 gxh4 20. Bg6 Bb7 21. Ng4 Qb6 22. Bd2 a5 23. Nf3 a4 24. Qc2 Ra6 25. Rab1 axb3 26. axb3 Ra3 27. Nf2 bxc4 28. bxc4 Qa7 29. Rb2 Ba8 30. Rfb1 Kc7 31. Rb3 Qa4 32. Qd1 Ra2 33. R3b2 Qxd1 34. Nxd1 Rxb2 35. Rxb2 Nb4 36. Bxb4 cxb4 37. Nf2 Nb7 38. Nd2 Nc5 39. Kf3 Bc6 40. Bf7 b3 41. Ke2 Ra8 42. Bd5 Ra2 43. Rb1 Be8 44. Ke1 Ba4 45. Bf7 b2 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.27"]
[Round "10"]
[White "Boehm, Hans"]
[Black "Ree, Hans"]
[Result "1-0"]
[WhiteElo "2410"]
[BlackElo "2520"]
[ECO "A21"]
[EventDate "1980.01.15"]
[PlyCount "113"]

1. c4 e5 2. Nc3 d6 3. d4 exd4 4. Qxd4 Nf6 5. g3 g6 6. b3 Bg7 7. Bb2 O-O 8. Bg2 Nbd7 9. Nh3 Re8 10. Qd2 Nc5 11. O-O Nfe4 12. Nxe4 Nxe4 13. Qc1 c6 14. Nf4 Bf5 15. Rd1 Qe7 16. Bxg7 Kxg7 17. f3 Nc5 18. e4 Be6 19. Qc3+ Kg8 20. Rd2 Rad8 21. Rad1 Bc8 22. h4 f6 23. b4 Ne6 24. Qe3 a6 25. Kh2 Ng7 26. c5 dxc5 27. Rxd8 Rxd8 28. Rxd8+ Qxd8 29. bxc5 Kf8 30. a3 Qd1 31. Qc3 Qd8 32. Bf1 Ne6 33. Nxe6+ Bxe6 34. Be2 a5 35. Kg2 Ke7 36. Qb2 Qd7 37. Kf2 a4 38. Qc3 Bb3 39. Qe3 Bf7 40. Qc3 Bb3 41. Qb4 Kd8 42. Ke3 Kc7 43. Qd4 Qe6 44. Kd2 Qe7 45. f4 Qe6 46. Kc3 Qe7 47. e5 fxe5 48. Qxe5+ Qxe5+ 49. fxe5 h6 50. Bc4 Bd1 51. Bd3 g5 52. hxg5 hxg5 53. Bc2 Bxc2 54. Kxc2 b5 55. cxb6+ Kxb6 56. Kd3 c5 57. Kc4 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.27"]
[Round "10"]
[White "Kortschnoj, Viktor"]
[Black "Kovacevic, Vlatko"]
[Result "1-0"]
[WhiteElo "2695"]
[BlackElo "2510"]
[ECO "E06"]
[EventDate "1980.01.15"]
[PlyCount "75"]

1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. d4 O-O 6. Nbd2 c6 7. O-O b5 8. c5 Ne4 9. Ne5 f6 10. Nd3 f5 11. Nf3 Bd7 12. Nfe5 Be8 13. a4 a5 14. f3 Ng5 15. g4 b4 16. Kh1 Bf6 17. Be3 Ra7 18. Rg1 Kh8 19. Qe1 Nf7 20. gxf5 exf5 21. Bh3 Nxe5 22. dxe5 Bh4 23. Qd2 Na6 24. Nf4 Nc7 25. Qd3 Qc8 26. Qd4 Qd8 27. Rad1 Bd7 28. Rxg7 Kxg7 29. e6+ Bf6 30. Rg1+ Kh8 31. exd7 Qxd7 32. Nh5 Ne8 33. Nxf6 Nxf6 34. Bh6 Rf7 35. Bf4 Qe6 36. Be5 Ra8 37. Rg5 Rg8 38. Rxf5 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.27"]
[Round "10"]
[White "Seirawan, Yasser"]
[Black "Sigurjonsson, Gudmundur"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2475"]
[ECO "A24"]
[EventDate "1980.01.15"]
[PlyCount "59"]

1. c4 e5 2. Nc3 d6 3. g3 Nf6 4. Bg2 g6 5. e4 Bg7 6. Nge2 O-O 7. O-O Nbd7 8. f4 c6 9. h3 b5 10. d3 Qb6+ 11. Kh1 Bb7 12. g4 exf4 13. Bxf4 Rfe8 14. cxb5 cxb5 15. Ng3 Nc5 16. Be3 b4 17. Nce2 Qb5 18. Bd4 Nfd7 19. Bxg7 Kxg7 20. Nf4 Rad8 21. Qd2 Ne6 22. d4 a5 23. Nfh5+ Kg8 24. d5 Ng7 25. Nxg7 Kxg7 26. Qg5 Kg8 27. Nh5 Qb6 28. Qh6 gxh5 29. Rxf7 Kxf7 30. Qxh7+ 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.27"]
[Round "10"]
[White "Sunye Neto, Jaime"]
[Black "Ligterink, Gert"]
[Result "1/2-1/2"]
[WhiteElo "2415"]
[BlackElo "2455"]
[ECO "A38"]
[EventDate "1980.01.15"]
[PlyCount "52"]

1. c4 c5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 d5 5. cxd5 Nxd5 6. Nxd5 Qxd5 7. Bg2 g6 8. O-O Bg7 9. d3 O-O 10. Be3 Bd7 11. Nd4 Qd6 12. Nxc6 Bxc6 13. Bxc6 Qxc6 14. Rc1 Qd5 15. Qa4 Rfc8 16. Rc2 b6 17. Rfc1 Re8 18. b4 cxb4 19. Qxb4 Be5 20. a4 Rad8 21. Bf4 Bxf4 22. Qxf4 e5 23. Qf6 Rd6 24. Qh4 e4 25. Rc8 Rde6 26. dxe4 Qxe4 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.27"]
[Round "10"]
[White "Timman, Jan"]
[Black "Byrne, Robert"]
[Result "1-0"]
[WhiteElo "2600"]
[BlackElo "2530"]
[ECO "C99"]
[EventDate "1980.01.15"]
[PlyCount "69"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4 Nc6 14. Nb3 a5 15. Be3 a4 16. Nbd2 Bd7 17. Rc1 Qb7 18. Qe2 Rfe8 19. Bd3 Rab8 20. a3 Bd8 21. dxe5 Nxe5 22. Bb1 Ba5 23. Bg5 Nxf3+ 24. Qxf3 Bc6 25. Bxf6 Bxd2 26. Qg3 g6 27. Qxd6 Bxc1 28. Rxc1 Bxe4 29. Qf4 Qb6 30. Ba2 Bf5 31. Bd4 Qd8 32. Rc7 Re1+ 33. Kh2 g5 34. Bxf7+ Kf8 35. Ba2 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.27"]
[Round "10"]
[White "Van der Wiel, John"]
[Black "Browne, Walter Shawn"]
[Result "0-1"]
[WhiteElo "2465"]
[BlackElo "2540"]
[ECO "B92"]
[EventDate "1980.01.15"]
[PlyCount "106"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Nbd7 7. Be2 e5 8. Nb3 b5 9. Bf3 Bb7 10. Qe2 Be7 11. a3 O-O 12. O-O Re8 13. Kh1 Rc8 14. f5 d5 15. exd5 e4 16. Nxe4 Bxd5 17. Ned2 Qc7 18. Bxd5 Nxd5 19. Qd3 N5f6 20. Nd4 Ne5 21. Qh3 Bc5 22. N2b3 Bxd4 23. Nxd4 Qc4 24. Be3 Neg4 25. Bg1 Re4 26. Rad1 Qa2 27. Rb1 Qd5 28. c3 Rce8 29. Rbd1 h5 30. Ne2 Qb3 31. Ng3 Qxd1 32. Rxd1 Re1 33. Rxe1 Rxe1 34. Nf1 Rxf1 35. Qh4 Ne4 36. g3 Nef2+ 37. Kg2 Ne3+ 38. Kf3 Nfd1+ 39. Ke4 Rxg1 40. Qxh5 Rf1 41. Qg5 f6 42. Qh5 Rxf5 43. Qe8+ Kh7 44. Qc8 Re5+ 45. Kf3 Nxb2 46. Qxa6 Nbc4 47. a4 Nd1 48. Qc8 Nd2+ 49. Kg2 Ne3+ 50. Kf2 bxa4 51. Qa6 Nd1+ 52. Kg2 Nxc3 53. Qd3+ Nde4 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.28"]
[Round "11"]
[White "Alburt, Lev"]
[Black "Timman, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2515"]
[BlackElo "2600"]
[ECO "A33"]
[EventDate "1980.01.15"]
[PlyCount "57"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. g3 Bc5 7. Nb3 Bb4 8. Bg2 d5 9. O-O dxc4 10. Qxd8+ Kxd8 11. Rd1+ Ke7 12. Nd4 Na5 13. Bg5 Rd8 14. e4 h6 15. Bf4 g5 16. Bd2 Rxd4 17. e5 Nd7 18. Nd5+ Rxd5 19. Bxb4+ Rc5 20. Rac1 Ke8 21. Bxc5 Nxc5 22. b4 Nd3 23. bxa5 Nxc1 24. Rxc1 Rb8 25. Rxc4 b6 26. axb6 axb6 27. f4 gxf4 28. gxf4 Bb7 29. Bxb7 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.28"]
[Round "11"]
[White "Browne, Walter Shawn"]
[Black "Sunye Neto, Jaime"]
[Result "1-0"]
[WhiteElo "2540"]
[BlackElo "2415"]
[ECO "E12"]
[EventDate "1980.01.15"]
[PlyCount "61"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. e3 Nd7 8. Bd3 Nxc3 9. bxc3 Bd6 10. e4 e5 11. Bg5 f6 12. Bh4 O-O 13. O-O Kh8 14. a4 Qe8 15. Re1 exd4 16. cxd4 Qh5 17. Bg3 Bxg3 18. hxg3 c5 19. d5 Ne5 20. Nxe5 Qxe5 21. Bc4 f5 22. f4 Qc3 23. Rc1 Qxg3 24. e5 Qxf4 25. e6 Qd6 26. e7 Rfe8 27. Re6 Qd7 28. d6 Bc6 29. Rc3 Be4 30. Rh3 h6 31. Rexh6+ 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.28"]
[Round "11"]
[White "Byrne, Robert"]
[Black "Boehm, Hans"]
[Result "1-0"]
[WhiteElo "2530"]
[BlackElo "2410"]
[ECO "C60"]
[EventDate "1980.01.15"]
[PlyCount "119"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. O-O a6 5. Bc4 Ng6 6. d4 exd4 7. Nxd4 Be7 8. Be3 Nxd4 9. Bxd4 O-O 10. Nc3 b5 11. Bd3 Bf6 12. Bxf6 Qxf6 13. a4 b4 14. Nd5 Qd6 15. Qd2 a5 16. Rad1 Bb7 17. Bc4 Bxd5 18. Bxd5 Rae8 19. Rfe1 Qe5 20. b3 Kh8 21. g3 f6 22. f4 Qh5 23. Bc4 Qc5+ 24. Qf2 Qxf2+ 25. Kxf2 d6 26. Rd5 Ra8 27. Rb5 Rfb8 28. Rd1 Ne7 29. Rxb8+ Rxb8 30. e5 fxe5 31. fxe5 Rd8 32. exd6 cxd6 33. Be6 g5 34. Ke3 Kg7 35. Rf1 Nc6 36. Ke4 Ne5 37. Kd5 h6 38. h4 Kg6 39. Rf2 g4 40. Rf5 h5 41. Rg5+ Kh6 42. Bf5 Rf8 43. Ke6 Ra8 44. Be4 Re8+ 45. Kd5 Rf8 46. Rf5 Re8 47. Rf6+ Kg7 48. Rxd6 Nf3 49. Bd3 Re5+ 50. Kc6 Ne1 51. Rd5 Re3 52. Rxh5 Rxg3 53. Rg5+ Kh6 54. Kb5 Nf3 55. Rg8 Nxh4 56. Kxa5 Kh5 57. Kxb4 Re3 58. a5 g3 59. a6 g2 60. a7 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.28"]
[Round "11"]
[White "Kovacevic, Vlatko"]
[Black "Biyiasas, Peter"]
[Result "0-1"]
[WhiteElo "2510"]
[BlackElo "2485"]
[ECO "A45"]
[EventDate "1980.01.15"]
[PlyCount "82"]

1. d4 Nf6 2. Bg5 g6 3. Bxf6 exf6 4. e3 Bg7 5. h4 h5 6. Nh3 d6 7. Nf4 Bh6 8. Qf3 Nd7 9. Bc4 c6 10. Nd2 f5 11. e4 Nf6 12. e5 Ne4 13. O-O-O d5 14. Bb3 a5 15. a4 Qb6 16. Nf1 Qb4 17. Ne3 Be6 18. Kb1 Bxf4 19. Qxf4 b5 20. Rd3 bxa4 21. Ba2 Rb8 22. Nd1 c5 23. Qe3 c4 24. Ra3 Nxf2 25. Rxa4 Qxa4 26. Qxf2 O-O 27. Qf4 Rb6 28. Rh3 Rfb8 29. Kc1 Qxa2 30. Ra3 Rxb2 31. Rxa2 Rxa2 32. Kd2 a4 33. Qg5 Ra1 34. Qe7 Rbb1 35. Nc3 Rb8 36. Qd6 Re8 37. Nb5 Rc8 38. Kc3 Rb1 39. Nc7 a3 40. Nxe6 a2 41. Qa6 a1=Q+ 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.28"]
[Round "11"]
[White "Ligterink, Gert"]
[Black "Seirawan, Yasser"]
[Result "1/2-1/2"]
[WhiteElo "2455"]
[BlackElo "2510"]
[ECO "B14"]
[EventDate "1980.01.15"]
[PlyCount "43"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Nf3 Be7 8. c5 Ne4 9. Bxe7 Qxe7 10. Qc1 Nxc3 11. Qxc3 e5 12. dxe5 Bg4 13. Be2 O-O 14. O-O Bxf3 15. Bxf3 d4 16. Qc4 Nxe5 17. Qxd4 Nxf3+ 18. gxf3 Rad8 19. Qe3 Qf6 20. Rad1 Qxb2 21. Rxd8 Rxd8 22. Qe7 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.28"]
[Round "11"]
[White "Ree, Hans"]
[Black "Van der Wiel, John"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2465"]
[ECO "E39"]
[EventDate "1980.01.15"]
[PlyCount "40"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. a3 Bxc5 7. Nf3 d5 8. Bg5 dxc4 9. e3 Qc7 10. Bf4 Bd6 11. Bxd6 Qxd6 12. Bxc4 Qc5 13. Bd3 Nc6 14. O-O e5 15. b4 Qe7 16. Ng5 g6 17. Nge4 Be6 18. Nxf6+ Qxf6 19. Ne4 Qe7 20. Nc5 Rfc8 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.28"]
[Round "11"]
[White "Sigurjonsson, Gudmundur"]
[Black "Kortschnoj, Viktor"]
[Result "0-1"]
[WhiteElo "2475"]
[BlackElo "2695"]
[ECO "C07"]
[EventDate "1980.01.15"]
[PlyCount "56"]

1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. dxc5 Bxc5 6. Bd3 Nc6 7. a3 Nge7 8. O-O O-O 9. b4 Ba7 10. Bb2 Ng6 11. c4 d4 12. e5 Ncxe5 13. Nxe5 Nxe5 14. Bxh7+ Kxh7 15. Qh5+ Kg8 16. Qxe5 f6 17. Qe4 e5 18. f4 f5 19. Qxe5 Re8 20. Qd5+ Qxd5 21. cxd5 Re2 22. Bc1 d3+ 23. Kh1 b5 24. Nf3 Bb7 25. Rd1 Bxd5 26. Rxd3 Bxf3 27. gxf3 Re1+ 28. Kg2 Rg1+ 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.29"]
[Round "12"]
[White "Biyiasas, Peter"]
[Black "Sigurjonsson, Gudmundur"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2475"]
[ECO "B51"]
[EventDate "1980.01.15"]
[PlyCount "74"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. Re1 a6 6. Bf1 g6 7. c3 Bg7 8. d3 Nf6 9. Bg5 O-O 10. Qd2 Bg4 11. Qf4 Qd7 12. h3 e5 13. Qe3 Be6 14. Bh6 Rae8 15. Bxg7 Kxg7 16. Nbd2 b5 17. a3 Qa7 18. b4 Nd7 19. Ng5 h6 20. Nxe6+ fxe6 21. Nb3 Qb6 22. Qd2 Rf7 23. Qe2 Ref8 24. f3 Ra8 25. Kh2 a5 26. Qd2 a4 27. Nc1 Rc8 28. Na2 d5 29. Rac1 g5 30. Rc2 Rd8 31. Rb1 dxe4 32. dxe4 c4 33. Qd6 Kf6 34. Rbb2 Ndb8 35. Qc5 Nd7 36. Qd6 Ndb8 37. Qc5 Nd7 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.29"]
[Round "12"]
[White "Boehm, Hans"]
[Black "Alburt, Lev"]
[Result "0-1"]
[WhiteElo "2410"]
[BlackElo "2515"]
[ECO "B04"]
[EventDate "1980.01.15"]
[PlyCount "54"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. c4 Nb6 6. exd6 cxd6 7. Be2 Bg7 8. O-O O-O 9. h3 Bf5 10. Nc3 Nc6 11. b3 d5 12. c5 Nd7 13. Bb2 Be4 14. Na4 Bxf3 15. Bxf3 e6 16. Qd2 b5 17. cxb6 Nxb6 18. Nc5 Qh4 19. Rfd1 Rac8 20. Na6 Rfd8 21. a4 Nd7 22. Be2 Nf6 23. Bf1 Ne4 24. Qe1 Na5 25. f3 Qxe1 26. Rxe1 Nd2 27. Rad1 Rc2 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.29"]
[Round "12"]
[White "Kortschnoj, Viktor"]
[Black "Ligterink, Gert"]
[Result "1-0"]
[WhiteElo "2695"]
[BlackElo "2455"]
[ECO "A33"]
[EventDate "1980.01.15"]
[PlyCount "81"]

1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. g3 Bc5 7. Nb3 Bb4 8. Bg2 d5 9. cxd5 Nxd5 10. Qc2 O-O 11. Bd2 Bxc3 12. Bxc3 Nxc3 13. Qxc3 Bd7 14. Nc5 Qc7 15. O-O-O Rad8 16. Nxd7 Rxd7 17. Rxd7 Qxd7 18. Rd1 Qc7 19. Bxc6 bxc6 20. Qc5 h6 21. Rd3 Rb8 22. Qd6 Rb7 23. Qxc7 Rxc7 24. Rd8+ Kh7 25. Kc2 Kg6 26. Kc3 Kf6 27. Kc4 Ke7 28. Ra8 c5 29. e4 Kd6 30. Rd8+ Kc6 31. e5 Rb7 32. Rd6+ Kc7 33. Rd2 Kc6 34. Rd6+ Kc7 35. b3 Rb4+ 36. Kxc5 Re4 37. f4 Re2 38. Ra6 Kb7 39. Ra4 Rxh2 40. Kd6 Rc2 41. Rb4+ 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.29"]
[Round "12"]
[White "Ree, Hans"]
[Black "Byrne, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2530"]
[ECO "E81"]
[EventDate "1980.01.15"]
[PlyCount "75"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 a6 6. Be3 c6 7. Bd3 O-O 8. Nge2 b5 9. Qd2 Nbd7 10. O-O e5 11. b3 exd4 12. Nxd4 Ne5 13. Be2 c5 14. Nc2 bxc4 15. bxc4 Be6 16. Nd5 Nxd5 17. exd5 Bd7 18. Bg5 f6 19. Bh4 g5 20. Bf2 f5 21. Rac1 f4 22. Ne1 g4 23. fxg4 Nxg4 24. Bxg4 Bxg4 25. Nf3 Qf6 26. Kh1 Qg6 27. Rb1 Qe4 28. Bh4 Rab8 29. Rxb8 Rxb8 30. h3 Bxf3 31. gxf3 Qxc4 32. Rg1 Kh8 33. Qg2 Be5 34. Qg5 Qc3 35. Rg2 c4 36. Qe7 Rg8 37. Rxg8+ Kxg8 38. Qd8+ 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.29"]
[Round "12"]
[White "Seirawan, Yasser"]
[Black "Browne, Walter Shawn"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2540"]
[ECO "A30"]
[EventDate "1980.01.15"]
[PlyCount "31"]

1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O g6 6. d4 cxd4 7. Nxd4 Bxg2 8. Kxg2 Bg7 9. Nc3 Qc8 10. b3 Qb7+ 11. f3 d5 12. cxd5 Nxd5 13. Nxd5 Qxd5 14. Be3 Nc6 15. Nxc6 Qxc6 16. Rc1 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.29"]
[Round "12"]
[White "Timman, Jan"]
[Black "Kovacevic, Vlatko"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2510"]
[ECO "B03"]
[EventDate "1980.01.15"]
[PlyCount "51"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Nf3 Be7 10. d5 exd5 11. cxd5 Nb4 12. Nd4 Bd7 13. Qb3 c5 14. dxc6 bxc6 15. Rd1 N6d5 16. Nxd5 Nxd5 17. Bc4 Rb8 18. Qd3 Nxe3 19. Qxe3 Qa5+ 20. Rd2 Bb4 21. Bxf7+ Ke7 22. Qg5+ Kxf7 23. O-O+ Kg8 24. Nf5 Bxf5 25. Qxf5 Qc5+ 26. Rff2 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.29"]
[Round "12"]
[White "Van der Wiel, John"]
[Black "Sunye Neto, Jaime"]
[Result "0-1"]
[WhiteElo "2465"]
[BlackElo "2415"]
[ECO "B93"]
[EventDate "1980.01.15"]
[PlyCount "100"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Nbd7 7. Bc4 e6 8. f5 d5 9. exd5 e5 10. Ne6 fxe6 11. fxe6 Nb6 12. Bb3 Bb4 13. O-O Bxc3 14. e7 Qxe7 15. d6 Bd4+ 16. Qxd4 exd4 17. dxe7 Kxe7 18. Bg5 Bd7 19. Rad1 Rhd8 20. Rxd4 Bc6 21. Rh4 h6 22. Re1+ Kf8 23. Rxh6 Bd5 24. Bxf6 gxh6 25. Rf1 Ke8 26. Bxd8 Rxd8 27. Rf6 Bxb3 28. axb3 Rd1+ 29. Kf2 Nd7 30. Re6+ Kf7 31. Rxh6 Rd2+ 32. Ke3 Rxc2 33. Rd6 Ke7 34. Rd2 Rc1 35. g4 Rg1 36. Kf4 Nc5 37. h4 Nxb3 38. Rc2 Kd6 39. h5 Nc5 40. Kf5 Rf1+ 41. Kg6 Rg1 42. Rc4 b5 43. Rb4 Ke5 44. h6 Ne6 45. Kf7 Rh1 46. Kg6 Rh4 47. Rb3 Rxg4+ 48. Kf7 Ng5+ 49. Kg6 Ne4+ 50. Kf7 Nd6+ 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.31"]
[Round "13"]
[White "Alburt, Lev"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2515"]
[BlackElo "2520"]
[ECO "D67"]
[EventDate "1980.01.15"]
[PlyCount "58"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. Ne4 e5 12. dxe5 Nxe5 13. Nxe5 Qxe5 14. Bxd5 cxd5 15. Nc3 Be6 16. O-O Rfd8 17. Rc2 d4 18. Rd2 Bg4 19. Qxg4 dxc3 20. Rxd8+ Rxd8 21. Rd1 Rxd1+ 22. Qxd1 g6 23. bxc3 Qxc3 24. g4 Qc4 25. g5 h6 26. gxh6 Kh7 27. Qa1 Qg4+ 28. Kf1 Qc4+ 29. Kg1 Qg4+ 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.31"]
[Round "13"]
[White "Browne, Walter Shawn"]
[Black "Kortschnoj, Viktor"]
[Result "1-0"]
[WhiteElo "2540"]
[BlackElo "2695"]
[ECO "A43"]
[EventDate "1980.01.15"]
[PlyCount "113"]

1. d4 Nf6 2. Nf3 c5 3. d5 b5 4. Bg5 Bb7 5. Bxf6 exf6 6. e4 a6 7. Be2 Bd6 8. a4 Qb6 9. axb5 axb5 10. Rxa8 Bxa8 11. Nc3 b4 12. Nb5 O-O 13. O-O Bb7 14. Nxd6 Qxd6 15. Bc4 Re8 16. Qd3 Na6 17. Nd2 Nc7 18. f4 Qb6 19. Kh1 d6 20. h3 Bc8 21. Nf3 h6 22. Re1 Ba6 23. Nd2 Bb7 24. Nf3 Ba6 25. Nd2 Bc8 26. Nf3 Bd7 27. Re3 Bb5 28. Nd2 Qb8 29. e5 fxe5 30. fxe5 Rxe5 31. Rxe5 Bxc4 32. Qxc4 dxe5 33. Qxc5 Ne8 34. Nc4 Nf6 35. d6 e4 36. Ne5 Qe8 37. Qd4 Kh8 38. d7 Nxd7 39. Nxd7 e3 40. Ne5 e2 41. Qe4 f6 42. Ng6+ Qxg6 43. Qxe2 h5 44. Qc4 Kh7 45. Kh2 Qf5 46. Qxb4 Qxc2 47. Qb8 f5 48. Qe5 Qf2 49. b4 h4 50. b5 g6 51. Qe7+ Kg8 52. Qe8+ Kh7 53. Qe7+ Kg8 54. Qd6 Kf7 55. b6 f4 56. Qd5+ Ke7 57. Qe5+ 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.31"]
[Round "13"]
[White "Byrne, Robert"]
[Black "Van der Wiel, John"]
[Result "1/2-1/2"]
[WhiteElo "2530"]
[BlackElo "2465"]
[ECO "B45"]
[EventDate "1980.01.15"]
[PlyCount "74"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 f5 9. Nd6+ Bxd6 10. exd6 Qb6 11. c4 Nf6 12. Be2 Ne4 13. O-O c5 14. Bh5+ Kf8 15. Bf3 Bb7 16. Bf4 Re8 17. Bxe4 Bxe4 18. Be5 h5 19. Re1 Qd8 20. Re3 h4 21. Rxe4 fxe4 22. Qg4 Rh7 23. Re1 Kg8 24. Rxe4 Rf8 25. h3 Rf5 26. Qe2 Rhh5 27. f4 Rh6 28. Qg4 g6 29. Qd1 Qa8 30. Re3 Kh7 31. Qa4 Rf7 32. Qa5 Rh5 33. Qe1 Rff5 34. Qe2 Rf8 35. Ra3 a6 36. Rf3 Qc6 37. Rb3 Rg8 1/2-1/2

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.31"]
[Round "13"]
[White "Kovacevic, Vlatko"]
[Black "Boehm, Hans"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2410"]
[ECO "D11"]
[EventDate "1980.01.15"]
[PlyCount "63"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 c6 4. e3 Bg4 5. c4 e6 6. Qb3 Qb6 7. c5 Qa5+ 8. Nc3 b6 9. Ne5 Bf5 10. a3 Be7 11. Be2 O-O 12. g4 Be4 13. f3 Bg6 14. h4 bxc5 15. h5 Qb6 16. Qxb6 axb6 17. hxg6 hxg6 18. Kd2 Rc8 19. Rh2 Kf8 20. Rh8+ Ng8 21. Bd3 Ra7 22. Rah1 c4 23. Bxg6 fxg6 24. Nxg6+ Kf7 25. Bxb8 Rxb8 26. Ne5+ Kf8 27. Nxc6 Rba8 28. Nxa7 Rxa7 29. e4 dxe4 30. fxe4 g6 31. R1h7 Rd7 32. Ke2 1-0

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.31"]
[Round "13"]
[White "Ligterink, Gert"]
[Black "Biyiasas, Peter"]
[Result "0-1"]
[WhiteElo "2455"]
[BlackElo "2485"]
[ECO "E73"]
[EventDate "1980.01.15"]
[PlyCount "88"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 Nbd7 7. Qd2 e5 8. Nf3 Qe8 9. O-O exd4 10. Nxd4 Nxe4 11. Nxe4 Qxe4 12. Nb5 Qc6 13. Rac1 Nc5 14. Bf3 Qd7 15. Rfe1 Ne6 16. Bh4 c6 17. Nxd6 Nd4 18. Qf4 Ne6 19. Qd2 Nd4 20. c5 Nxf3+ 21. gxf3 Qh3 22. Qf4 Be6 23. b3 Bd5 24. Re3 f6 25. Qg3 Qxg3+ 26. Bxg3 Bh6 27. f4 b6 28. Re7 bxc5 29. Rce1 a5 30. f5 a4 31. fxg6 hxg6 32. h4 Bd2 33. Rb1 axb3 34. axb3 Bc3 35. Bf4 Bd4 36. Rbe1 Ra2 37. Be3 f5 38. Bxd4 cxd4 39. Rd1 Rd8 40. Nb7 Ra7 41. Rxd4 Rb8 42. Rb4 Ra1+ 43. Kh2 c5 44. Rb6 f4 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.31"]
[Round "13"]
[White "Sigurjonsson, Gudmundur"]
[Black "Timman, Jan"]
[Result "0-1"]
[WhiteElo "2475"]
[BlackElo "2600"]
[ECO "B07"]
[EventDate "1980.01.15"]
[PlyCount "50"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4 Bg7 5. Qe2 Nc6 6. e5 Ng4 7. Bb5 O-O 8. Bxc6 bxc6 9. h3 Nh6 10. Nf3 c5 11. dxc5 Bb7 12. Bd2 Nf5 13. O-O-O Bxf3 14. Qxf3 Bxe5 15. h4 Qd7 16. Qh3 h5 17. Rhe1 Bg7 18. c6 Qxc6 19. g4 hxg4 20. Qxg4 Rab8 21. Rg1 Nd4 22. Rg3 Rb4 23. f4 Rxb2 24. Kxb2 Qb7+ 25. Kc1 f5 0-1

[Event "42nd Hoogovens it"]
[Site "Wijk aan Zee NED"]
[Date "1980.01.31"]
[Round "13"]
[White "Sunye Neto, Jaime"]
[Black "Seirawan, Yasser"]
[Result "1/2-1/2"]
[WhiteElo "2415"]
[BlackElo "2510"]
[ECO "D40"]
[EventDate "1980.01.15"]
[PlyCount "40"]

1. c4 c5 2. Nc3 Nf6 3. Nf3 e6 4. e3 d5 5. d4 a6 6. dxc5 Bxc5 7. a3 O-O 8. b4 Ba7 9. Bb2 dxc4 10. Bxc4 b5 11. Bb3 Bb7 12. O-O Nbd7 13. a4 bxa4 14. Nxa4 Qb8 15. Nd4 Bd5 16. Bxd5 Nxd5 17. Nc6 Qb7 18. Nxa7 Qxa7 19. Qg4 N5f6 20. Bxf6 Nxf6 1/2-1/2
