[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.26"] [Round "1"] [White "Hartman, Brian"] [Black "Vranesic, Zvonko"] [Result "0-1"] [WhiteElo "2377"] [BlackElo "2306"] [ECO "B16"] [EventDate "1980.12.26"] [PlyCount "142"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. Be2 Bf5 7. Nf3 Qc7 8. Be3 Nd7 9. O-O e6 10. c4 O-O-O 11. d5 Nb6 12. Nd4 Be4 13. f3 Bg6 14. f4 Be4 15. Rc1 Kb8 16. d6 Qc8 17. Bf3 Bxf3 18. Qxf3 c5 19. Nb5 a6 20. b4 Nd7 21. bxc5 Nxc5 22. Qf2 b6 23. Rb1 Qc6 24. Nd4 Qxd6 25. Qf3 Rc8 26. Rfd1 Qc7 27. Kh1 Qb7 28. Qf1 Ka8 29. Nb3 Be7 30. Rd2 Qc6 31. Rdb2 Na4 32. Rc2 Rhd8 33. Qf2 Nc5 34. Nd4 Qe4 35. Rxb6 Rb8 36. Rxb8+ Rxb8 37. h3 Rb1+ 38. Kh2 Nd3 39. Qf3 Qxf3 40. Nxf3 Rb2 41. Rc3 Nc5 42. Nd4 Kb7 43. Nb3 Ne4 44. Rd3 Kc6 45. Na5+ Kc7 46. Rb3 Rxb3 47. Nxb3 Bb4 48. Kg1 Kd6 49. Kf1 f5 50. a4 a5 51. Bb6 Nc3 52. Bxa5 Bxa5 53. Nxa5 Nxa4 54. Nb3 Nb2 55. c5+ Kd5 56. Ke2 Na4 57. g4 Nxc5 58. Nd2 fxg4 59. hxg4 Kd4 60. Kf3 Kd3 61. Nf1 Nb3 62. g5 Nd4+ 63. Kg4 Nf5 64. Nh2 Ke4 65. Nf3 h5+ 66. gxh6 Nxh6+ 67. Kg3 Nf5+ 68. Kg4 Ne3+ 69. Kg3 Nf1+ 70. Kf2 Kxf4 71. Nd4 Ng3 0-1

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.26"] [Round "1"] [White "Kaminker, Harry"] [Black "Murray, Peter"] [Result "0-1"] [WhiteElo "2245"] [BlackElo "2298"] [ECO "E99"] [EventDate "1980.12.26"] [PlyCount "77"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Nd3 f5 11. Bd2 Nf6 12. f3 f4 13. c5 g5 14. Rc1 Ng6 15. Nb5 Rf7 16. Qc2 Ne8 17. Nf2 h5 18. h3 Nh4 19. cxd6 cxd6 20. Nxa7 Bd7 21. Nc6 Qf6 22. Qb3 Rc8 23. Na5 Rb8 24. Bb5 Qd8 25. Bxd7 Qxd7 26. Rc3 Nf6 27. Rfc1 Qd8 28. Nc4 b5 29. Na5 b4 30. Nc6 bxc3 31. Qxc3 Qb6 32. Nxb8 Qxb8 33. Qc8+ Rf8 34. Qxb8 Rxb8 35. b4 Ra8 36. Rc2 Nd7 37. b5 Nc5 38. Bb4 Bf8 39. Bxc5 0-1

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.26"] [Round "1"] [White "MacPhail, John"] [Black "Dzera, Victor"] [Result "0-1"] [WhiteElo "2242"] [BlackElo "2200"] [ECO "B00"] [EventDate "1980.12.26"] [PlyCount "38"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. e4 Nc6 2. d4 d5 3. Nc3 Nf6 4. e5 Ne4 5. Nxe4 dxe4 6. Be3 f6 7. Bb5 Bd7 8. c4 Nb4 9. exf6 exf6 10. Qg4 c6 11. Qxe4+ Kf7 12. Ba4 Qa5 13. Bb3 Bf5 14. Qf3 Nc2+ 15. Ke2 Nxa1 16. Bd2 Nxb3 17. axb3 Re8+ 18. Kd1 Qa1+ 19. Bc1 Qb1 0-1

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.26"] [Round "1"] [White "Nurmi, Peter"] [Black "Boyd, Stephen"] [Result "1/2-1/2"] [WhiteElo "2296"] [BlackElo "2259"] [ECO "B33"] [EventDate "1980.12.26"] [PlyCount "71"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 d6 7. Bf4 e5 8. Bg5 a6 9. Na3 b5 10. Nd5 Be7 11. Bxf6 Bxf6 12. c3 O-O 13. Nc2 Be6 14. a4 bxa4 15. Rxa4 a5 16. Bc4 Bg5 17. O-O Kh8 18. b4 Ne7 19. Qd3 f5 20. Nxe7 fxe4 21. Qxe4 Rf4 22. Qxa8 Qxa8 23. Bxe6 Bxe7 24. Rxa5 Qc6 25. Ne3 Bd8 26. Ra3 Rf8 27. Bd5 Qb5 28. Bc4 Qb7 29. Bd5 Qb5 30. Ra8 g6 31. Bc4 Qc6 32. Rfa1 Kg7 33. R8a7+ Kh8 34. Ra8 Kg7 35. R8a7+ Kh8 36. Ra8 1/2-1/2

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.26"] [Round "1"] [White "Ross, Dave"] [Black "Rohanchuk, Edward"] [Result "1/2-1/2"] [WhiteElo "2133"] [BlackElo "1779"] [ECO "A18"] [EventDate "1980.12.26"] [PlyCount "136"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 Nfd7 5. d4 dxc4 6. Bxc4 c5 7. Nf3 Nc6 8. O-O cxd4 9. Nxd4 Ndxe5 10. Bb5 Bd7 11. Re1 Bc5 12. Nb3 Bb4 13. Qh5 Ng6 14. Bg5 Qc7 15. Nd5 Qd6 16. Rad1 Bxe1 17. Nf6+ gxf6 18. Rxd6 fxg5 19. Qd1 a6 20. Bf1 Bb4 21. Rxd7 Rd8 22. Rxd8+ Nxd8 23. Qd4 Be7 24. Nc5 Bxc5 25. Qxc5 h6 26. Qd6 Ne7 27. b4 f6 28. Bd3 Rg8 29. Bc4 Kf7 30. g3 h5 31. a4 f5 32. Qd7 Kf6 33. Be2 g4 34. Qd4+ Kf7 35. Qd7 Kf6 36. Bf1 Nec6 37. b5 axb5 38. axb5 Ne5 39. Qc8 Nf3+ 40. Kg2 h4 41. gxh4 Nxh4+ 42. Kh1 e5 43. Bc4 Rh8 44. Bd5 Nf3 45. Bxf3 gxf3 46. Qc3 Rh3 47. Qc7 Rh8 48. Qc8 Kg5 49. Kg1 e4 50. Qd7 Kg6 51. Qd6+ Kg5 52. h4+ Kh5 53. Qf6 Rg8+ 54. Kf1 Kg4 55. Ke1 f4 56. Kd2 e3+ 57. fxe3 fxe3+ 58. Kxe3 Re8+ 59. Kf2 Re2+ 60. Kf1 Ne6 61. h5 Ng5 62. Qg6 Kh4 63. Qh6 Rb2 64. Qg6 Re2 65. Qh6 Rb2 66. b6 Re2 67. Qf8 Kxh5 68. Qh8+ Kg6 1/2-1/2

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.27"] [Round "2"] [White "Dzera, Victor"] [Black "Kaminker, Harry"] [Result "1/2-1/2"] [WhiteElo "2200"] [BlackElo "2245"] [ECO "C54"] [EventDate "1980.12.26"] [PlyCount "72"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 Bb6 6. b4 d6 7. a4 a6 8. Na3 h6 9. h3 Ne7 10. Qb3 O-O 11. g4 d5 12. exd5 e4 13. dxe4 Nxe4 14. Ra2 Qd6 15. Rg1 Qf6 16. Nd4 Ng6 17. Be3 Nf4 18. Bf1 Bd7 19. a5 Ba7 20. b5 axb5 21. Naxb5 Bxb5 22. Bxb5 Nxd5 23. Qxd5 Nxc3 24. g5 hxg5 25. Qxg5 Bxd4 26. Bxd4 Qxd4 27. Rd2 Qe4+ 28. Be2 g6 29. f3 Qe6 30. h4 b6 31. a6 Rxa6 32. Kf2 Ra5 33. Qh6 Qf6 34. Bc4 Ne4+ 35. Ke2 Nc3+ 36. Kf2 Ne4+ 1/2-1/2

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.27"] [Round "2"] [White "Murray, Peter"] [Black "Nurmi, Peter"] [Result "0-1"] [WhiteElo "2298"] [BlackElo "2296"] [ECO "A22"] [EventDate "1980.12.26"] [PlyCount "74"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Bg2 O-O 5. e4 Bxc3 6. bxc3 c6 7. Ne2 d5 8. cxd5 cxd5 9. exd5 Nxd5 10. O-O Nc6 11. h3 Be6 12. d4 exd4 13. cxd4 Qd7 14. Kh2 Rac8 15. Qd2 Rfd8 16. Rb1 b6 17. Rd1 Na5 18. g4 f5 19. g5 Rc7 20. Qd3 Rdc8 21. Bd2 Nc4 22. Bf4 Nd6 23. Be5 Rc4 24. Qg3 Ne4 25. Bxe4 fxe4 26. Rbc1 Rc2 27. Re1 e3 28. Rxc2 Rxc2 29. g6 hxg6 30. Qf3 Bxh3 31. Rg1 exf2 32. Rxg6 f1=Q 33. Rxg7+ Qxg7 34. Qxd5+ Qff7 35. Qd8+ Kh7 36. Qh4+ Qh6 37. Qe4+ Bf5+ 0-1

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.27"] [Round "2"] [White "Rohanchuk, Edward"] [Black "Boyd, Stephen"] [Result "0-1"] [WhiteElo "1779"] [BlackElo "2259"] [ECO "A56"] [EventDate "1980.12.26"] [PlyCount "88"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. d4 Nf6 2. c4 c5 3. dxc5 Na6 4. Nc3 Nxc5 5. Qc2 g6 6. Nf3 Bg7 7. e4 d6 8. Be2 O-O 9. O-O Bd7 10. Re1 a6 11. Be3 Rc8 12. Bxc5 Rxc5 13. e5 dxe5 14. b4 Bf5 15. Qb3 Rc8 16. Nxe5 Ne4 17. Rad1 Qc7 18. Nxe4 Bxe5 19. Ng3 Be6 20. Qe3 Rfe8 21. Qf3 h5 22. a3 Bg4 23. Qe3 Bf4 24. Qe4 Bxe2 25. Qxe2 Qxc4 26. Qxc4 Rxc4 27. Rd7 Rc7 28. Rxc7 Bxc7 29. Ne4 Rc8 30. g3 Bb6 31. Re2 Bd4 32. Kg2 Kg7 33. f4 Rc7 34. Kf3 e6 35. Rd2 Bf6 36. Nc5 Be7 37. Rd7 Rxd7 38. Nxd7 f6 39. Ke4 Kf7 40. Kd4 Ke8 41. Nc5 Bxc5+ 42. Kxc5 Kd7 43. Kb6 Kc8 44. a4 Kb8 0-1

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.27"] [Round "2"] [White "Ross, Dave"] [Black "Hartman, Brian"] [Result "1-0"] [WhiteElo "2133"] [BlackElo "2377"] [ECO "C91"] [EventDate "1980.12.26"] [PlyCount "105"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d4 d6 9. c3 Bg4 10. d5 Na5 11. Bc2 c6 12. h3 Bh5 13. dxc6 Qc7 14. Nbd2 Rfe8 15. Nf1 Rac8 16. Ng3 Bg6 17. Nh4 Nxc6 18. Nhf5 Bf8 19. Bg5 Nd7 20. Qg4 Kh8 21. Rad1 Nc5 22. Ne3 f6 23. Nd5 Qb7 24. Bc1 Ne7 25. Ne3 Bf7 26. b3 b4 27. c4 Nc6 28. Ne2 Ne6 29. Bb2 Qa7 30. Nf5 Red8 31. Bc1 a5 32. Be3 Nc5 33. Nxd6 Bxd6 34. Rxd6 Nb8 35. Red1 Re8 36. Ng3 Qc7 37. Nf5 Bg6 38. R1d5 Nb7 39. Rb6 Bxf5 40. Qxf5 Rcd8 41. Re6 Nc6 42. Rxe8+ Rxe8 43. Qd7 Qc8 44. Bb6 Kg8 45. Bd1 Ne7 46. Bg4 Qa8 47. Bh5 Ng6 48. c5 Re7 49. Qc6 Qb8 50. Rd7 Kf7 51. Qd5+ Ke8 52. c6 Qc8 53. Qg8# 1-0

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.27"] [Round "2"] [White "Vranesic, Zvonko"] [Black "MacPhail, John"] [Result "1-0"] [WhiteElo "2306"] [BlackElo "2242"] [ECO "A33"] [EventDate "1980.12.26"] [PlyCount "159"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. Nc3 cxd4 5. Nxd4 Nc6 6. Ndb5 d6 7. Bf4 e5 8. Bg5 a6 9. Na3 Be6 10. e3 Be7 11. Be2 O-O 12. O-O Rc8 13. Rc1 Nd7 14. Bxe7 Qxe7 15. Bf3 Nf6 16. Qd2 h6 17. Rfd1 Rfd8 18. Bd5 Bxd5 19. Nxd5 Nxd5 20. cxd5 Nb8 21. Rc3 Nd7 22. Rdc1 Nb6 23. Nc4 Na4 24. R3c2 b5 25. Na5 Rxc2 26. Qxc2 Qd7 27. b3 Nb6 28. Nc6 Rc8 29. e4 f5 30. f3 fxe4 31. fxe4 Rf8 32. Qe2 Qf7 33. Nb4 Rc8 34. Rf1 Qc7 35. Nc6 Rf8 36. Rxf8+ Kxf8 37. Qf2+ Ke8 38. Qf5 Qf7 39. Qxf7+ Kxf7 40. Nb8 a5 41. Kf2 a4 42. Nc6 axb3 43. axb3 Nc8 44. Kf3 Ke8 45. Kg4 Kf7 46. Nd8+ Kg6 47. Ne6 Nb6 48. Kf3 b4 49. Nc7 Nd7 50. Na6 Kf7 51. h3 Kg6 52. Ke3 Kh5 53. Nxb4 Nc5 54. Nc6 Nxb3 55. Ne7 Nd4 56. g3 Kg5 57. Nc8 Nb5 58. Kd3 h5 59. Kc4 Na3+ 60. Kc3 Nb5+ 61. Kb4 Nd4 62. Nxd6 Kf6 63. Kc4 Ne2 64. g4 Nf4 65. gxh5 Nxh5 66. Nf5 Nf4 67. Ne3 Ke7 68. h4 Nh3 69. Nf5+ Kd7 70. Nxg7 Nf2 71. Ne6 Kd6 72. Ng5 Ng4 73. Kd3 Ke7 74. Ke2 Nf6 75. Kf3 Ne8 76. Nh3 Nd6 77. Nf2 Kf6 78. Ng4+ Kg6 79. Nxe5+ Kh5 80. Kf4 1-0

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.28"] [Round "3"] [White "Boyd, Stephen"] [Black "Murray, Peter"] [Result "1-0"] [WhiteElo "2259"] [BlackElo "2298"] [ECO "E80"] [EventDate "1980.12.26"] [PlyCount "77"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 c6 6. Be3 a6 7. Bd3 Nbd7 8. Nge2 b5 9. Qd2 bxc4 10. Bxc4 Nb6 11. Bd3 O-O 12. O-O a5 13. Rac1 Bd7 14. Rc2 Qb8 15. Nb1 Rc8 16. Na3 Be6 17. b3 Qb7 18. Rfc1 Bd7 19. Nc4 Nxc4 20. Bxc4 d5 21. Bd3 dxe4 22. fxe4 e5 23. h3 exd4 24. Bxd4 Re8 25. Qc3 Nh5 26. Bxg7 Nxg7 27. Nd4 Rad8 28. Nf3 Qc7 29. Qd2 Ne6 30. e5 c5 31. Qe3 Bc6 32. Be4 Bxe4 33. Qxe4 Qb6 34. Rf2 Rd7 35. Rcf1 Qd8 36. Qe3 Kg7 37. Nd2 Rd5 38. Rxf7+ Kg8 39. Qh6 1-0

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.28"] [Round "3"] [White "Kaminker, Harry"] [Black "Vranesic, Zvonko"] [Result "0-1"] [WhiteElo "2245"] [BlackElo "2306"] [ECO "A01"] [EventDate "1980.12.26"] [PlyCount "81"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. b3 e5 2. Bb2 Nc6 3. e3 d6 4. d4 a6 5. Nf3 g6 6. Be2 Bg7 7. c4 Nh6 8. Nc3 O-O 9. Qd2 exd4 10. exd4 Nf5 11. Nd5 Re8 12. O-O Bh6 13. Qc2 Be6 14. Rfe1 Rc8 15. Qc3 Bg7 16. Qd2 Bxd5 17. cxd5 Nce7 18. Qb4 Rb8 19. Qa5 c5 20. Qd2 Nxd5 21. dxc5 Bxb2 22. Qxb2 dxc5 23. Rad1 Qf6 24. Qc1 Nc3 25. Rd2 Nxe2+ 26. Rdxe2 Rxe2 27. Rxe2 b6 28. h3 Rd8 29. Qe1 Kg7 30. Re8 Rxe8 31. Qxe8 Qe7 32. Qc6 Qd6 33. Qb7 a5 34. h4 Nd4 35. Ng5 Ne2+ 36. Kh1 Qf6 37. Nf3 Nd4 38. Nxd4 cxd4 39. g3 Qd6 40. Qc8 h6 41. Qc2 0-1

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.28"] [Round "3"] [White "MacPhail, John"] [Black "Ross, Dave"] [Result "1/2-1/2"] [WhiteElo "2242"] [BlackElo "2133"] [ECO "C80"] [EventDate "1980.12.26"] [PlyCount "57"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 Be7 8. Nxe5 Nxe5 9. dxe5 Bb7 10. Bd5 Qc8 11. a4 O-O 12. Re1 Nc5 13. Nc3 b4 14. Bxb7 Qxb7 15. Nd5 Bd8 16. Qd4 Ne6 17. Qc4 a5 18. b3 Ra6 19. Be3 Qc6 20. Qb5 Re8 21. f4 Nf8 22. Qd3 Qb7 23. Bf2 Ng6 24. Qf3 Qc6 25. Qd3 Qb7 26. Re4 Rae6 27. Rc4 d6 28. Qf3 Kh8 29. exd6 1/2-1/2

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.28"] [Round "3"] [White "Nurmi, Peter"] [Black "Dzera, Victor"] [Result "0-1"] [WhiteElo "2296"] [BlackElo "2200"] [ECO "C64"] [EventDate "1980.12.26"] [PlyCount "48"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 f5 5. d4 fxe4 6. Bxc6 dxc6 7. Nfd2 Qh4 8. g3 Qh3 9. dxc5 Bg4 10. Qa4 Nf6 11. Qc4 O-O-O 12. Qf1 e3 13. fxe3 Qh6 14. Nf3 Rd5 15. h3 Rhd8 16. hxg4 Rd1+ 17. Ke2 Qxh1 18. Qxh1 Rxh1 19. Bd2 e4 20. Nd4 Nxg4 21. Be1 Rh2+ 22. Kf1 Nxe3+ 23. Kg1 Rg2+ 24. Kh1 Rd5 0-1

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.29"] [Round "4"] [White "Dzera, Victor"] [Black "Boyd, Stephen"] [Result "0-1"] [WhiteElo "2200"] [BlackElo "2259"] [ECO "A01"] [EventDate "1980.12.26"] [PlyCount "68"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. b3 e5 2. Bb2 d6 3. e4 Nf6 4. Nc3 Nc6 5. Nge2 g6 6. d4 exd4 7. Nxd4 Bg7 8. Nxc6 bxc6 9. Qd3 O-O 10. O-O-O Qe7 11. g3 c5 12. Bg2 Bb7 13. f4 Rfe8 14. Rhe1 Nd7 15. Bf3 Nb6 16. h4 a5 17. a4 c4 18. Qf1 cxb3 19. cxb3 Qe6 20. Kc2 Rab8 21. g4 Bc6 22. f5 Qe5 23. Ba1 Qc5 24. Rd3 Nd7 25. Kd2 Ne5 26. Bd1 Nxd3 27. Kxd3 Qd4+ 28. Kc2 Bxe4+ 29. Kc1 Bd3 30. Qh1 Qf4+ 31. Kb2 Qd2+ 32. Ka3 Rxe1 33. Qc6 Rxd1 34. Bb2 Qc2 0-1

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.29"] [Round "4"] [White "Rohanchuk, Edward"] [Black "Murray, Peter"] [Result "0-1"] [WhiteElo "1779"] [BlackElo "2298"] [ECO "E92"] [EventDate "1980.12.26"] [PlyCount "47"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. c4 g6 2. Nc3 Bg7 3. d4 Nf6 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5 c6 10. Nxe5 Re8 11. f4 Na6 12. O-O Nc5 13. Bf3 Ne6 14. Bxf6 Bxf6 15. Ng4 Bd4+ 16. Kh1 Nxf4 17. e5 Bxg4 18. Bxg4 Nd3 19. Ne4 Rxe5 20. Rad1 Rxe4 21. Rxd3 Rxg4 22. Re1 c5 23. Re7 Rf4 24. g3 0-1

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.29"] [Round "4"] [White "Ross, Dave"] [Black "Kaminker, Harry"] [Result "0-1"] [WhiteElo "2133"] [BlackElo "2245"] [ECO "C73"] [EventDate "1980.12.26"] [PlyCount "81"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 f6 7. Be3 Bg4 8. Nc3 Nh6 9. Bxh6 gxh6 10. Qd3 Bg7 11. O-O-O Qd7 12. h3 Be6 13. g4 h5 14. d5 Bf7 15. Kb1 Bh6 16. Nh4 Bg5 17. Nf5 h4 18. Ng7+ Kf8 19. Nf5 Bg6 20. dxc6 Qxc6 21. Qd5 Qxd5 22. Nxd5 Bxf5 23. gxf5 Ra7 24. Rd3 Ke8 25. Rc3 Kd7 26. Rd1 Rb7 27. Ra3 Rhb8 28. b3 c6 29. Nc3 Ra7 30. Ra4 Rg8 31. Rg1 Raa8 32. Rb4 Kc7 33. Rc4 Bd2 34. Rxg8 Rxg8 35. Nd5+ Kb7 36. Nxf6 Rg1+ 37. Kb2 Rh1 38. Ng4 Bc1+ 39. Kc3 Rxh3+ 40. Kb4 h5 41. Nf6 0-1

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.29"] [Round "4"] [White "Vranesic, Zvonko"] [Black "Nurmi, Peter"] [Result "1/2-1/2"] [WhiteElo "2306"] [BlackElo "2296"] [ECO "E91"] [EventDate "1980.12.26"] [PlyCount "234"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. Nf3 O-O 7. Be2 e6 8. O-O Re8 9. h3 exd5 10. exd5 Na6 11. Be3 Nc7 12. Qd2 Bf5 13. Bd3 Bxd3 14. Qxd3 Qd7 15. Rfe1 Rab8 16. a4 a6 17. a5 b5 18. axb6 Rxb6 19. Re2 Reb8 20. Bc1 h6 21. Ra3 Nce8 22. Nh2 Nc7 23. Nd1 Re8 24. Rxe8+ Qxe8 25. Nf3 Rb8 26. Bf4 Qd7 27. Rb3 Rxb3 28. Qxb3 Nfe8 29. Qc2 Na8 30. Bd2 Nb6 31. Ba5 Qa4 32. Qxa4 Nxa4 33. b3 Nb2 34. Nxb2 Bxb2 35. g4 Kf8 36. Kg2 Nf6 37. Ne1 h5 38. Nd3 Bd4 39. f3 hxg4 40. hxg4 Nd7 41. Kg3 Ke7 42. f4 Nf6 43. Kf3 Kd7 44. Nc1 Bb2 45. Ne2 Ba1 46. Ng3 Bb2 47. Bd2 Ng8 48. Ne4 Nf6 49. Ng5 Ke7 50. Be1 Ke8 51. Bg3 Ke7 52. Bh4 Ke8 53. Nh3 Kd7 54. Bxf6 Bxf6 55. Ke4 Kc7 56. Nf2 Bd4 57. Nd3 Bc3 58. Nc1 Bd2 59. Ne2 f6 60. f5 g5 61. Kd3 Be1 62. Kc2 Kd7 63. Nc1 Bf2 64. Nd3 Bd4 65. b4 cxb4 66. Nxb4 Kc7 67. Nxa6+ Kb6 68. Nb8 Kc7 69. Nc6 Bf2 70. Na5 Kb6 71. Nb3 Be3 72. Kd3 Bf4 73. Nd4 Bg3 74. Nb3 Be5 75. Nd2 Bg3 76. Ne4 Be5 77. Kc2 Kc7 78. Kb3 Ba1 79. Kb4 Bd4 80. Kb5 Kd7 81. Nd2 Kc7 82. Nb3 Be3 83. Na5 Bd4 84. Nc6 Be3 85. Ne7 Bf2 86. Ng6 Bd4 87. Nf8 Be3 88. Ka6 Bg1 89. Ne6+ Kc8 90. Kb5 Kd7 91. c5 dxc5 92. Nxc5+ Kd6 93. Ne4+ Kxd5 94. Nxf6+ Ke5 95. Nh5 Kd5 96. Nf6+ Ke5 97. Ne8 Bd4 98. Kc6 Bb2 99. Kd7 Kf4 100. f6 Ke5 101. f7 Ba3 102. Nc7 Bf8 103. Ne6 Ba3 104. Nd8 Bf8 105. Ke8 Bh6 106. Ke7 Bg7 107. Ne6 Bh6 108. f8=Q Bxf8+ 109. Kxf8 Kxe6 110. Kg7 Ke7 111. Kg6 Kf8 112. Kxg5 Kg7 113. Kh5 Kh7 114. g5 Kg7 115. g6 Kg8 116. Kg4 Kg7 117. Kg5 Kg8 1/2-1/2

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.30"] [Round "5"] [White "Boyd, Stephen"] [Black "Vranesic, Zvonko"] [Result "0-1"] [WhiteElo "2259"] [BlackElo "2306"] [ECO "B16"] [EventDate "1980.12.26"] [PlyCount "82"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. Ne2 Bf5 7. Ng3 Bg6 8. f4 e6 9. f5 Bxf5 10. Nxf5 Qa5+ 11. Bd2 Qxf5 12. Bd3 Qd5 13. Qe2 Nd7 14. Be3 h5 15. O-O Bh6 16. Bf2 Bf4 17. Be4 Qa5 18. b4 Qc7 19. h3 h4 20. Rab1 O-O-O 21. c4 f5 22. Bf3 Kb8 23. Kh1 Bg3 24. Bg1 Rhe8 25. Qe3 Nb6 26. Qb3 f6 27. b5 cxb5 28. Qxb5 Re7 29. Rfc1 Qd7 30. Qb4 Rg7 31. d5 e5 32. Qa5 Nc8 33. c5 e4 34. Bxe4 fxe4 35. c6 Qxd5 36. Qa6 b6 37. Rb5 Qd2 38. Rcb1 e3 39. a4 Be5 40. Rxb6+ Nxb6 41. Rxb6+ Ka8 0-1

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.30"] [Round "5"] [White "MacPhail, John"] [Black "Rohanchuk, Edward"] [Result "1-0"] [WhiteElo "2242"] [BlackElo "1779"] [ECO "C95"] [EventDate "1980.12.26"] [PlyCount "69"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Nb8 10. d4 Nbd7 11. Nh4 Bb7 12. Nf5 Re8 13. Bg5 Bf8 14. f3 h6 15. Bh4 g6 16. Ne3 c6 17. Nd2 Qc8 18. Ndf1 Nh5 19. Ng4 g5 20. Bf2 Bg7 21. Nfe3 Nf4 22. Nf5 h5 23. Bxf7+ Kf8 24. Nxd6 Qb8 25. Bxe8 Qxd6 26. Bxd7 Qxd7 27. Nxe5 Qe6 28. Qb3 Qxb3 29. axb3 Bxe5 30. dxe5 Re8 31. Rad1 Rxe5 32. Rd7 Bc8 33. Rc7 Be6 34. Bd4 Nd3 35. Rd1 1-0

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.30"] [Round "5"] [White "Murray, Peter"] [Black "Dzera, Victor"] [Result "0-1"] [WhiteElo "2298"] [BlackElo "2200"] [ECO "E44"] [EventDate "1980.12.26"] [PlyCount "72"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Bb7 6. a3 Be7 7. Nf4 d5 8. cxd5 exd5 9. g3 Bd6 10. Qf3 O-O 11. Bd3 Re8 12. O-O Bf8 13. Bc2 Qd7 14. Bd2 Na6 15. Rfd1 Rad8 16. Nd3 Bd6 17. a4 c5 18. Nb5 Bb8 19. Bc3 Ne4 20. Nf4 Nb4 21. Bxe4 dxe4 22. Qh5 Nd3 23. dxc5 Bxf4 24. gxf4 Re6 25. f5 Rh6 26. Qg5 f6 27. Qg3 Qxf5 28. Rxd3 exd3 29. Nd6 Rxd6 30. Qxd6 Qg4+ 31. Qg3 Qe4 32. Qb8+ Kf7 33. Qc7+ Ke8 34. Qb8+ Kd7 35. Qd6+ Ke8 36. c6 Rg6+ 0-1

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.30"] [Round "5"] [White "Nurmi, Peter"] [Black "Ross, Dave"] [Result "1-0"] [WhiteElo "2296"] [BlackElo "2133"] [ECO "B31"] [EventDate "1980.12.26"] [PlyCount "61"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. Bxc6 dxc6 7. d3 Qe7 8. Nbd2 Nh6 9. Nc4 f6 10. a4 Be6 11. b3 O-O 12. a5 Nf7 13. Ba3 Bh6 14. d4 exd4 15. Qxd4 b6 16. Qd3 Rfd8 17. Qe2 Nd6 18. Nxd6 Qxd6 19. e5 fxe5 20. Bb2 e4 21. Qxe4 Bd5 22. Qh4 Qf8 23. Ng5 bxa5 24. c4 Bxg2 25. Ne6 g5 26. Qg3 Qf5 27. Nxd8 Rxd8 28. Kxg2 Rd2 29. Bc3 Rc2 30. Rac1 Ra2 31. Re5 1-0

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.31"] [Round "6"] [White "MacPhail, John"] [Black "Kaminker, Harry"] [Result "1-0"] [WhiteElo "2242"] [BlackElo "2245"] [ECO "B06"] [EventDate "1980.12.26"] [PlyCount "37"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. e4 c6 2. d4 g6 3. Nc3 Bg7 4. Be2 d6 5. a4 e5 6. dxe5 dxe5 7. Qxd8+ Kxd8 8. Bc4 Ke7 9. b3 Be6 10. Ba3+ Kf6 11. Rd1 Bxc4 12. bxc4 Kg5 13. Nf3+ Kh5 14. Ne2 Bf6 15. g4+ Kxg4 16. Rg1+ Kh5 17. Ng3+ Kg4 18. h3+ Kxh3 19. Nf5 1-0

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.31"] [Round "6"] [White "Rohanchuk, Edward"] [Black "Dzera, Victor"] [Result "1/2-1/2"] [WhiteElo "1779"] [BlackElo "2200"] [ECO "A40"] [EventDate "1980.12.26"] [PlyCount "160"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. c4 b6 2. Nc3 Bb7 3. d4 e6 4. e3 Bb4 5. Bd2 f5 6. a3 Be7 7. Nf3 Nf6 8. b4 O-O 9. Qb3 Ne4 10. Bc1 a5 11. bxa5 Rxa5 12. Bb2 Qc8 13. Ne5 Nc6 14. Nxc6 Bxc6 15. d5 Nc5 16. Qd1 Ba4 17. Qf3 Bc2 18. g4 Bh4 19. g5 Bxg5 20. Rg1 Bf6 21. Rc1 Nd3+ 22. Bxd3 Bxd3 23. Qg3 d6 24. Kd2 Bxc4 25. Na4 Rxd5+ 26. Ke1 f4 27. Qxg7+ Bxg7 28. Rxg7+ Kh8 29. Rxc7+ e5 30. Rxc8 Rxc8 31. Nxb6 Rb8 32. Nxc4 fxe3 33. fxe3 Rc5 34. Nxd6 Rxc1+ 35. Bxc1 Kg7 36. Ne4 Kg6 37. Ke2 Kf5 38. Nd2 e4 39. a4 Rg8 40. Nf1 Ra8 41. Ng3+ Ke5 42. Bb2+ Kd5 43. Nh5 Rxa4 44. Nf6+ Ke6 45. Kd2 h6 46. Ng4 h5 47. Nf6 h4 48. Nh5 Kf5 49. h3 Ra8 50. Nf4 Rg8 51. Ba3 Rg7 52. Bc5 Rd7+ 53. Ke2 Rc7 54. Bb4 Rb7 55. Be1 Rb2+ 56. Kf1 Rb1 57. Ng2 Kg5 58. Kg1 Ra1 59. Kh2 Ra2 60. Bxh4+ Kf5 61. Bg3 Rb2 62. Bf4 Rb7 63. Ne1 Rb1 64. Bg3 Ra1 65. Bf2 Ra8 66. Nc2 Kg5 67. Nd4 Ra6 68. Kg3 Rf6 69. h4+ Kh5 70. Ne2 Rf3+ 71. Kg2 Rf7 72. Nc3 Re7 73. Kh3 Re6 74. Bg3 Rc6 75. Nxe4 Re6 76. Nc3 Rxe3 77. Nd5 Ra3 78. Nf4+ Kh6 79. Kg4 Ra4 80. h5 Rb4 1/2-1/2

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.31"] [Round "6"] [White "Ross, Dave"] [Black "Boyd, Stephen"] [Result "1/2-1/2"] [WhiteElo "2133"] [BlackElo "2259"] [ECO "A25"] [EventDate "1980.12.26"] [PlyCount "72"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. g3 g6 2. Bg2 Bg7 3. c4 e5 4. Nc3 Nc6 5. Rb1 d6 6. b4 f5 7. b5 Nd4 8. e3 Ne6 9. Nge2 Nf6 10. d4 O-O 11. O-O e4 12. Qc2 Ng5 13. Kh1 Kh8 14. Ng1 Be6 15. Nce2 d5 16. Nf4 Bf7 17. Ba3 Re8 18. h4 Ne6 19. Ngh3 Nxf4 20. Nxf4 dxc4 21. d5 Nxd5 22. Rfd1 a6 23. Bb2 Bxb2 24. Rxb2 Qd7 25. Bf1 axb5 26. Nxd5 Bxd5 27. Qc3+ Kg8 28. Rxb5 Qxb5 29. Rxd5 Qxd5 30. Bxc4 c6 31. Bxd5+ cxd5 32. Qb3 Re7 33. Qxd5+ Kg7 34. Qd4+ Kh6 35. a4 Rc8 36. Kg2 Rc6 1/2-1/2

[Event "Ontario-ch 1980-81"] [Site "Toronto CAN"] [Date "1980.12.31"] [Round "6"] [White "Vranesic, Zvonko"] [Black "Murray, Peter"] [Result "1-0"] [WhiteElo "2306"] [BlackElo "2298"] [ECO "E80"] [EventDate "1980.12.26"] [PlyCount "97"] [EventType "tourn"] [EventRounds "9"] [EventCountry "CAN"] [SourceDate "1997.11.17"] [Source "ChessBase"] 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 c6 6. Be3 a6 7. Qd2 Nbd7 8. a4 e5 9. d5 Nc5 10. Ra3 cxd5 11. cxd5 Qa5 12. Na2 Qxd2+ 13. Kxd2 b6 14. Ne2 h5 15. b4 Ncd7 16. g3 Bh6 17. h4 Bxe3+ 18. Kxe3 a5 19. Bh3 axb4 20. Nxb4 Nc5 21. Bxc8 Rxc8 22. Nc6 Rc7 23. Rb1 Rb7 24. a5 bxa5 25. Rxb7 Nxb7 26. Rb3 Nd8 27. Nxd8 a4 28. Rb5 Nd7 29. Nc6 O-O 30. Ra5 Nc5 31. Nc3 f5 32. Nxa4 f4+ 33. gxf4 exf4+ 34. Ke2 Nd7 35. Ra7 Rf7 36. Nb2 g5 37. hxg5 h4 38. g6 Rg7 39. Nd3 h3 40. Nf2 h2 41. Nh1 Nf8 42. Rxg7+ Kxg7 43. Kf2 Nxg6 44. Nd4 Kf6 45. Nf5 Ke5 46. Kg2 Nh8 47. Kxh2 Nf7 48. Nf2 Kf6 49. Kg2 1-0