| ECO A07 in 1978 play it! knudsen john c defeats black's ej hebert in 51 moves | 1. Nf3 d5 2. g3 c6 3. Bg2 Nf6 4. O-O g6 5. d3 Bg7 6. Nbd2 O-O 7. e4 Nbd7 8. e5 Ng4 9. d4 c5 10. c3 b6 11. h3 Nh6 12. Qe2 e6 13. Nh2 f6 14. Ndf3 Bb7 15. Bxh6 Bxh6 16. Ng4 Kg7 17. Nxh6 Kxh6 18. Qe3+ Kg7 19. Rfe1 h6 20. Rad1 f5 21. Nh2 c4 22. b3 Rc8 23. f4 b5 24. Rb1 a6 25. a4 Rc7 26. axb5 |
| ECO A07 in 1978 play it! knudsen john c defeats black's belfi r in 37 moves | 1. Nf3 d5 2. g3 Nf6 3. Bg2 c5 4. O-O Nc6 5. d3 e5 6. Nbd2 Be7 7. e4 Bf5 8. exf5 h6 9. Re1 O-O 10. h3 Qb6 11. Nxe5 Bd6 12. Ndf3 Bxe5 13. Nxe5 Nxe5 14. Rxe5 d4 15. g4 Nd7 16. Re7 Nf6 17. Rxb7 Qd6 18. c3 Nd5 19. g5 |
| ECO A05 in 1973 play it! knudsen john c defeats black's schmidt g in 49 moves | 1. Nf3 Nf6 2. g3 d5 3. Bg2 Bg4 4. O-O e6 5. d3 Bc5 6. Nbd2 Nbd7 7. h3 Bxf3 8. Nxf3 Qe7 9. c3 O-O-O 10. b4 Bd6 11. a4 Ne5 12. Qb3 h6 13. Ba3 Nfd7 14. Nd4 c5 15. Nb5 cxb4 16. Nxd6+ Qxd6 17. Bxb4 Qb6 18. Rfb1 g5 19. a5 Qb5 20. c4 dxc4 21. dxc4 Qa6 22. Bd6 b6 23. axb6 Qxb6 24. Qxb6 Nxb6 25. Bxe5 |
| ECO A04 in 1973 play it! knudsen john c defeats black's powers g in 29 moves | 1. Nf3 b5 2. g3 Bb7 3. Bg2 e5 4. O-O d6 5. d3 Qf6 6. Nbd2 a5 7. b3 Qe6 8. Bb2 Ra7 9. d4 e4 10. Ng5 e3 11. Nxe6 Bxg2 12. Kxg2 exd2 13. Nf4 Nf6 14. Qxd2 Ne4 15. Qe3 |
| ECO A04 in 1979 play it! knudsen john c defeats black's van uden j in 67 moves | 1. Nf3 Nc6 2. e4 e5 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 f5 6. d3 Nf6 7. Nxe5 Be7 8. Qf3 Nd4 9. Qg3 Nxb5 10. Qxg7 Rf8 11. Bh6 d6 12. Ng6 hxg6 13. Qxf8+ Kd7 14. Qf7 Ng8 15. Qe6+ Kc6 16. Qc4+ Kd7 17. Qxb5+ c6 18. Qb3 Nxh6 19. Qe6+ Kc7 20. Qxe7+ Qxe7 21. Rxe7+ Bd7 22. Nc3 Ng8 23. Re2 Rf8 24. Rae1 f4 25. f3 g5 26. Ne4 g4 27. Ng5 g3 28. hxg3 fxg3 29. Ne6+ Bxe6 30. Rxe6 a6 31. Rg6 b5 32. Rxg3 b4 33. Rg7+ Kb6 34. f4 |
| ECO A04 in 1973 play it! knudsen john c defeats black's johns in 73 moves | 1. Nf3 d6 2. b3 Nf6 3. Bb2 g6 4. e3 Bg7 5. c4 Bg4 6. h3 Bxf3 7. Qxf3 Nc6 8. d4 O-O 9. Bd3 Nb4 10. Qe2 e5 11. a3 Nxd3+ 12. Qxd3 Re8 13. O-O c5 14. d5 e4 15. Qc2 b5 16. Nd2 bxc4 17. bxc4 Qe7 18. Rab1 Rab8 19. Nb3 Nd7 20. Bxg7 Kxg7 21. Na5 Rxb1 22. Rxb1 Rb8 23. Nc6 Rxb1+ 24. Qxb1 Qf6 25. Kh2 Ne5 26. Qxe4 Qxf2 27. Nxe5 dxe5 28. Qxe5+ Qf6 29. Qxf6+ Kxf6 30. Kg3 h5 31. Kf4 g5+ 32. Ke4 a5 33. a4 Ke7 34. Kf5 f6 35. e4 h4 36. Kg6 g4 37. hxg4 |
| ECO A09 in 1983 play it! knudsen john c defeats black's owens j in 55 moves | 1. Nf3 d5 2. c4 Nf6 3. g3 c5 4. Bg2 e6 5. O-O Be7 6. Na3 O-O 7. d3 Nc6 8. Nc2 b6 9. Bd2 Ba6 10. b3 Rb8 11. Re1 Qc7 12. e4 dxc4 13. dxc4 Rfd8 14. Qe2 e5 15. Nh4 Nd4 16. Nxd4 cxd4 17. Nf5 Bf8 18. Bg5 Qc6 19. Qd3 h6 20. Bxf6 Qxf6 21. f4 Bb4 22. Re2 b5 23. Rf1 bxc4 24. bxc4 Rbc8 25. fxe5 Qxe5 26. Rc2 Bc3 27. Ne3 dxe3 28. Qxe3 |
| ECO A04 in 1978 play it! knudsen john c defeats black's daniels e in 87 moves | 1. Nf3 Nc6 2. d4 d5 3. c4 Nf6 4. Nc3 Be6 5. e3 Bg4 6. Qb3 Na5 7. Qb5+ c6 8. Qa4 e6 9. Bd2 Bf5 10. cxd5 exd5 11. Nxd5 Nxd5 12. Bxa5 Qxa5+ 13. Qxa5 Bb4+ 14. Qxb4 Nxb4 15. Kd2 O-O 16. a3 Nd5 17. Rc1 Rac8 18. Bd3 Bxd3 19. Kxd3 Nf6 20. Ne5 Rcd8 21. Rc5 Nd5 22. Rhc1 f6 23. Nf3 Nc7 24. e4 Ne6 25. Ra5 a6 26. g3 Ra8 27. Rh5 g6 28. Rh4 h5 29. Rd1 Rad8 30. Ke3 f5 31. exf5 Rxf5 32. Re4 Nc5 33. Re5 Rxe5+ 34. Nxe5 Nb3 35. Nxg6 b6 36. Ne7+ Kf7 37. Nxc6 Re8+ 38. Ne5+ Kg8 39. f4 a5 40. d5 Nc5 41. d6 Ne6 42. d7 Rf8 43. Rd6 Nd8 44. Rxb6 |
| ECO A04 in 1973 play it! knudsen john c defeats black's powers g in 75 moves | 1. Nf3 e6 2. b3 Bc5 3. Bb2 Nf6 4. e3 d5 5. c4 Nc6 6. d4 Bb4+ 7. Nc3 Ne4 8. Qd3 Bxc3+ 9. Bxc3 O-O 10. Nd2 f5 11. Nxe4 fxe4 12. Qc2 Qf6 13. b4 a6 14. a4 Bd7 15. b5 axb5 16. cxb5 Na5 17. Bxa5 Rxa5 18. Ra2 c6 19. b6 c5 20. dxc5 Rc8 21. Be2 Rcxc5 22. Qb3 Rc3 23. Qb4 Rc1+ 24. Kd2 Rxh1 25. Qxa5 Rxh2 26. Qa8+ Kf7 27. Qxb7 Qe7 28. Rb2 Kg6 29. Qc7 Rxg2 30. b7 d4 31. Qf4 dxe3+ 32. Qxe3 Qd6+ 33. Ke1 Bxa4 34. Qxe4+ Kf7 35. Qf3+ Ke7 36. b8=Q Rg1+ 37. Bf1 Qd1+ 38. Qxd1 |
| ECO A04 in 1978 play it! knudsen john c defeats black's pivarnik e in 33 moves | 1. Nf3 c5 2. g3 Nf6 3. Bg2 g6 4. O-O Bg7 5. d3 O-O 6. e4 Nc6 7. Nbd2 h5 8. Re1 Bh6 9. e5 Ng4 10. h3 Nxf2 11. Kxf2 b5 12. c3 d5 13. d4 cxd4 14. cxd4 b4 15. Nb3 g5 16. Nxg5 Bg7 17. Qxh5 |
| ECO A04 in 1978 play it! knudsen john c defeats black's hardin s by checkmate in 69 moves | 1. Nf3 e5 2. Nxe5 Bc5 3. d4 Bb6 4. Nc3 Qh4 5. Nf3 Qg4 6. h3 Qg6 7. e4 Nf6 8. e5 Ne4 9. Qe2 c6 10. Qxe4 Qe6 11. Bd3 d5 12. exd6 Nd7 13. O-O Nf6 14. Qxe6+ fxe6 15. Re1 O-O 16. Bg5 Nd5 17. Nxd5 cxd5 18. Be7 Rf7 19. c3 Bd7 20. Ng5 Rf4 21. Bxh7+ Kh8 22. g3 Re4 23. Bxe4 dxe4 24. Rxe4 Bd8 25. Nf7+ Kg8 26. Nxd8 Be8 27. Nxe6 Bg6 28. Rf4 Kh7 29. Nf8+ Kh6 30. Rh4+ Bh5 31. Re1 g5 32. Re6+ Kg7 33. Rxh5 Re8 34. Rxg5+ Kf7 35. Rf6# |
| ECO A05 in 1978 play it! knudsen john c defeats black's turner j in 101 moves | 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 d5 6. Nbd2 c5 7. c4 d4 8. Nb3 Nbd7 9. e3 e5 10. Re1 Qc7 11. exd4 cxd4 12. Qe2 Re8 13. Bg5 Rb8 14. Bxf6 Bxf6 15. Nfxd4 b6 16. Nb5 Qd8 17. Nxa7 Bb7 18. Bxb7 Rxb7 19. Nb5 Re6 20. Rad1 h5 21. Qf3 Rb8 22. d4 h4 23. dxe5 Bxe5 24. N3d4 Rf6 25. Qd5 hxg3 26. hxg3 Rc8 27. b4 Kg7 28. Rxe5 Nxe5 29. Qxe5 Qf8 30. Nc7 Qxb4 31. Nd5 Qd6 32. Qxf6+ Qxf6 33. Nxf6 Kxf6 34. Rc1 Ke5 35. Ne2 Ke4 36. Kf1 Ra8 37. c5 bxc5 38. Rxc5 Rxa2 39. Nc3+ Kd4 40. Nxa2 Kxc5 41. Ke2 Kc6 42. Kd3 g5 43. Nc1 Kd5 44. Ne2 Ke5 45. Ke3 Kd5 46. f3 Ke5 47. f4+ gxf4+ 48. gxf4+ Kf6 49. Kd4 Ke6 50. Ng3 Kf6 51. Kd5 |
| ECO A06 in 1973 play it! knudsen john c defeats black's powers g in 57 moves | 1. Nf3 d5 2. b3 Bf5 3. Bb2 Nc6 4. e3 h6 5. c4 e6 6. cxd5 exd5 7. d3 Nf6 8. Nbd2 Nb4 9. e4 Qe7 10. Bxf6 gxf6 11. Be2 dxe4 12. dxe4 Bxe4 13. Nxe4 Qxe4 14. O-O Rg8 15. Re1 Qg6 16. Bd3+ Be7 17. Bxg6 Rxg6 18. Rxe7+ Kxe7 19. Qe2+ Kf8 20. Re1 Kg7 21. Nh4 Rg5 22. f4 Ra5 23. Qg4+ Kh7 24. Re7 Rf8 25. Nf5 Rg8 26. Rxf7+ Kh8 27. Qh5 Rxg2+ 28. Kxg2 Rxa2+ 29. Kh3 |
| ECO A07 in 1981 play it! knudsen john c defeats black's palmieri j in 45 moves | 1. Nf3 d5 2. g3 c6 3. Bg2 Bf5 4. O-O e6 5. d3 Nf6 6. Nbd2 Nbd7 7. Re1 h6 8. e4 Bh7 9. e5 Ng8 10. d4 Qc7 11. c3 Ne7 12. Nf1 O-O-O 13. b3 f6 14. exf6 gxf6 15. Rxe6 Ng6 16. a4 Bg8 17. Re1 f5 18. Ba3 Bxa3 19. Rxa3 f4 20. Ra2 fxg3 21. fxg3 h5 22. h4 Nf6 23. Ng5 |
| ECO A07 in 1978 play it! knudsen john c defeats black's spencer w in 35 moves | 1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. O-O Bf5 5. d3 e6 6. Nbd2 Nbd7 7. Qe1 Be7 8. e4 dxe4 9. dxe4 Bg4 10. h3 Bxf3 11. Nxf3 O-O 12. Bf4 Nc5 13. Rd1 Qb6 14. b3 Ncxe4 15. Ne5 Nc5 16. Nc4 Qa6 17. a4 Nxa4 18. Bd6 |
| ECO A07 in 1978 play it! knudsen john c defeats black's mccandless b in 55 moves | 1. Nf3 d5 2. g3 e6 3. Bg2 f6 4. O-O Nc6 5. d3 e5 6. e4 d4 7. Ne1 f5 8. f4 Nf6 9. exf5 Bxf5 10. fxe5 Bg4 11. exf6 Bxd1 12. f7+ Kd7 13. Bh3+ Kd6 14. Bf4+ Ne5 15. Na3 Kd5 16. Bg2+ Nf3+ 17. Nxf3 Bxf3 18. Bxf3+ Ke6 19. Rae1+ Kxf7 20. Bh5+ Kg8 21. Bg5 g6 22. Bxd8 Rxd8 23. Bg4 Kg7 24. Nc4 Bd6 25. Nxd6 Rxd6 26. Re7+ Kh6 27. Rxc7 Rc6 28. Rff7 |
| ECO A05 in 1981 play it! knudsen john c defeats black's baker p in 33 moves | 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O d5 5. d3 O-O 6. Nbd2 c5 7. e4 dxe4 8. dxe4 Nc6 9. Re1 Bg4 10. h3 Bd7 11. Qe2 e5 12. Nc4 Qe7 13. a4 Nd4 14. Nxd4 cxd4 15. b3 b5 16. axb5 Bxb5 17. Ba3 |
| ECO A06 in 1995 play it! knudsen john c defeats black's stalker by checkmate in 123 moves | 1. Nf3 d5 2. d4 Nf6 3. Bg5 Ne4 4. Bf4 e6 5. Nbd2 Bd6 6. Bxd6 Nxd6 7. e3 O-O 8. c3 Nd7 9. Bd3 c5 10. O-O b6 11. Qe2 a6 12. Rfe1 Bb7 13. e4 c4 14. Bc2 Rc8 15. e5 Nb5 16. Nf1 Qe7 17. h3 h6 18. N3h2 Rc6 19. f4 Nc7 20. Nf3 Nb5 21. N1h2 Ra8 22. Rf1 Rf8 23. Rf2 Rd8 24. Raf1 Rf8 25. Ng4 Rb8 26. f5 Kh8 27. Nfh2 Rbc8 28. f6 gxf6 29. Nxf6 R6c7 30. Qh5 Qf8 31. Nhg4 Nxf6 32. Rxf6 Qg7 33. Nxh6 Ba8 34. Nxf7+ Kg8 35. Nh6+ Kh8 36. Nf5+ Qh7 37. Qxh7+ Rxh7 38. Nh6 Rhc7 39. Rf8+ Kg7 40. R8f6 Kh8 41. Nf7+ Rxf7 42. Rxf7 Kg8 43. Bh7+ Kh8 44. Bc2 Kg8 45. R7f6 Kh8 46. R1f4 Rc7 47. Rh4+ Kg8 48. Rg4+ Rg7 49. Rxe6 Rxg4 50. hxg4 Kf7 51. Rf6+ Ke8 52. g5 Nxd4 53. cxd4 Bb7 54. g6 Bc8 55. g7 Be6 56. Rxe6+ Kf7 57. Rg6 Kg8 58. e6 b5 59. e7 Kf7 60. g8=Q+ Kxe7 61. Qh7+ Kd8 62. Rg8# |
| ECO A04 in 1982 play it! knudsen john c defeats black's emerson m in 81 moves | 1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. O-O Bg7 5. d3 e6 6. Nbd2 Nge7 7. e4 O-O 8. c3 d5 9. Re1 d4 10. Qc2 dxc3 11. bxc3 e5 12. Nf1 b6 13. Ne3 Ba6 14. Nd5 Rc8 15. Nxe7+ Qxe7 16. Bg5 Qd7 17. Rad1 h6 18. Bc1 Rfd8 19. Bf1 b5 20. a3 Kh7 21. h4 b4 22. Kh2 Rb8 23. Bh3 Qd6 24. axb4 cxb4 25. d4 b3 26. Qb2 Na5 27. dxe5 Qxd1 28. Rxd1 Rxd1 29. Bf4 Nc4 30. Qe2 Rbd8 31. e6 fxe6 32. Bxe6 b2 33. Bxc4 Bxc4 34. Qxb2 Be6 35. Qa3 Bg4 36. Ne5 Bxe5 37. Bxe5 R1d7 38. Bd4 Bf3 39. e5 Rb8 40. e6 Re7 41. Qxe7+ |
| ECO A04 in 1984 play it! knudsen john c defeats black's spearman l by checkmate in 63 moves | 1. Nf3 Nc6 2. g3 e5 3. d3 Nf6 4. Bg2 Bc5 5. O-O h6 6. e4 d6 7. Nbd2 Bg4 8. h3 Bh5 9. Nb3 Bb6 10. c3 a5 11. a4 Qd7 12. Nbd2 d5 13. exd5 Qxd5 14. Nc4 e4 15. Nxb6 cxb6 16. dxe4 Qe6 17. Re1 Nxe4 18. g4 Rd8 19. Qe2 Bg6 20. Nh4 Bh7 21. Bxe4 Bxe4 22. Qxe4 Qxe4 23. Rxe4+ Ne7 24. Nf5 Rd7 25. Bf4 Kd8 26. Nxe7 Rxe7 27. Rd1+ Rd7 28. Rxd7+ Kxd7 29. Kf1 Kc6 30. Re7 Rf8 31. c4 g5 32. Rc7# |