| ECO B23 in 1996 play it! knudsen john c defeats black's schalk in 117 moves | 1. e4 c5 2. Nc3 e6 3. g3 Nf6 4. Bg2 d5 5. e5 Nfd7 6. f4 Nc6 7. Nf3 Be7 8. O-O a6 9. Kh1 O-O 10. d4 cxd4 11. Nxd4 Nxd4 12. Qxd4 Qb6 13. Qxb6 Nxb6 14. b3 Bc5 15. Bb2 Bd7 16. a4 Bc6 17. a5 Nd7 18. Na4 Bb4 19. Ba3 Bxa3 20. Rxa3 Rac8 21. Rf2 Rc7 22. Rd2 Bb5 23. c4 dxc4 24. bxc4 Rxc4 25. Nc3 Rc7 26. Nxb5 axb5 27. h3 Rc1+ 28. Kh2 Nc5 29. Raa2 b4 30. Rdc2 b3 31. Rxc1 bxa2 32. Ra1 Rb8 33. Rxa2 Kf8 34. Rb2 Ra8 35. Rb5 Rc8 36. Bxb7 Nxb7 37. Rxb7 Ra8 38. Rb5 Ke8 39. Kg2 Kd8 40. Rc5 Kd7 41. Kf3 Ra6 42. Ke4 Ra8 43. Kd4 Rb8 44. Kc4 Rb1 45. Rb5 Rc1+ 46. Kb4 Rb1+ 47. Kc5 Rc1+ 48. Kb6 Rc6+ 49. Ka7 Rc7+ 50. Rb7 Kc8 51. Rxc7+ Kxc7 52. a6 f5 53. g4 fxg4 54. hxg4 h6 55. f5 exf5 56. gxf5 h5 57. f6 gxf6 58. exf6 Kd7 59. Kb8 |
| ECO B77 in 1979 play it! knudsen john c defeats black's williams d in 69 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Nxd4 10. Bxd4 Be6 11. Bb3 Qa5 12. O-O-O b5 13. Nd5 Qxd2+ 14. Rxd2 Bxd5 15. Bxd5 Nxd5 16. Bxg7 Kxg7 17. Rxd5 a6 18. Rhd1 Rfc8 19. c3 Kf6 20. Kc2 Ke6 21. Kb3 f5 22. R1d4 h5 23. a4 Rc5 24. axb5 Rxb5+ 25. Rxb5 axb5 26. Rd5 Ra5 27. Kb4 Ra2 28. Rd2 fxe4 29. fxe4 Ke5 30. Re2 Ra4+ 31. Kxb5 Rxe4 32. Rxe4+ Kxe4 33. Kc6 Ke5 34. b4 d5 35. b5 |
| ECO B78 in 1992 play it! knudsen john c defeats black's sulzbach s in 107 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 10. O-O-O Rc8 11. Bb3 Ne5 12. Kb1 Nc4 13. Bxc4 Rxc4 14. h4 h5 15. Bh6 Qc7 16. Bxg7 Kxg7 17. Nd5 Nxd5 18. exd5 Qc5 19. Nb3 Qc7 20. g4 Rh8 21. Rdg1 hxg4 22. h5 Rh6 23. hxg6 Rxg6 24. Qh2 Kf8 25. Qh8+ Rg8 26. Qh6+ Ke8 27. Qh7 Rf8 28. fxg4 Rxg4 29. Rxg4 Bxg4 30. Rg1 Qc4 31. Qg7 Bf5 32. Nd4 Qxd5 33. b3 f6 34. Re1 Be4 35. Qg4 f5 36. Qg6+ Kd7 37. Qg1 Rg8 38. Qe3 e5 39. Ne2 Rc8 40. Nc3 Qc6 41. Kb2 Bg2 42. Rd1 Qf3 43. Qxe5 Rc6 44. Qg7+ Kd8 45. Qg8+ Kd7 46. Rd3 Qg4 47. Qf7+ Kc8 48. Qe8+ Kc7 49. Qe7+ Kc8 50. Nb5 Kb8 51. Qd8+ Rc8 52. Qxd6+ Ka8 53. Nc7+ Rxc7 54. Qd8+ |
| ECO B54 in 1992 play it! knudsen john c defeats black's schafer h in 83 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Bd7 6. Be2 g6 7. Be3 Bg7 8. Qd2 Nxd4 9. Bxd4 Nf6 10. f3 Bc6 11. O-O-O Qa5 12. Kb1 b5 13. Nxb5 Qd8 14. Nxa7 Bd7 15. Nb5 O-O 16. b3 Qb8 17. a4 Qb7 18. Bc4 Be6 19. Bxe6 fxe6 20. Rhe1 e5 21. Bb2 Rfc8 22. Nc3 Kf8 23. Nd5 Qc6 24. Nxf6 Bxf6 25. Re2 Kg7 26. f4 Qc7 27. g4 exf4 28. Bxf6+ Kxf6 29. Qxf4+ Kg7 30. Qd2 Rcb8 31. Qd4+ Kg8 32. Qd5+ Kg7 33. Rf1 Rxa4 34. Rf7+ Kh8 35. Ref2 Raa8 36. Qd4+ e5 37. Qd2 Qc6 38. Qh6 Rxb3+ 39. cxb3 Qxe4+ 40. Rc2 Qh1+ 41. Qc1 Qe4 42. Qf1 |
| ECO B22 in 1980 play it! knudsen john c defeats black's lawson k in 75 moves | 1. e4 c5 2. c3 d6 3. d4 cxd4 4. cxd4 Nf6 5. Nc3 g6 6. Nf3 Bg7 7. Bb5+ Bd7 8. Bxd7+ Nbxd7 9. O-O O-O 10. h3 Rc8 11. Be3 Nb6 12. Nd2 e5 13. d5 Nh5 14. Rc1 f5 15. exf5 Nf6 16. fxg6 hxg6 17. Qb3 Nfd7 18. Nce4 Nf6 19. Bxb6 axb6 20. Rxc8 Qxc8 21. Nxd6 Qc7 22. N6e4 Qd8 23. d6+ Kh8 24. Rd1 Nd7 25. Qe6 Qe8 26. Qxe8 Rxe8 27. Rc1 Bf8 28. b4 Re6 29. Rc8 Kg7 30. Rc7 Bxd6 31. Rxd7+ Be7 32. Rxb7 Kh6 33. a3 g5 34. Nc4 Bd8 35. Rd7 Bf6 36. Nxf6 Rxf6 37. Rd6 Rxd6 38. Nxd6 |
| ECO B22 in 1973 play it! knudsen john c defeats black's troxell in 65 moves | 1. e4 c5 2. c3 e5 3. Nf3 d6 4. d4 cxd4 5. cxd4 Qc7 6. Nc3 Nf6 7. Be3 a6 8. Be2 Bg4 9. O-O Nbd7 10. Rc1 Qd8 11. Qb3 Bxf3 12. Bxf3 b5 13. Rfd1 Be7 14. Ne2 O-O 15. Ng3 Rc8 16. Qd3 Rxc1 17. Rxc1 Qa8 18. Nf5 Re8 19. d5 g6 20. Nxe7+ Rxe7 21. Bg5 Nc5 22. Qc2 Kg7 23. b4 h6 24. Bxf6+ Kxf6 25. bxc5 Rc7 26. c6 Qa7 27. Bg4 h5 28. Bd7 Ke7 29. Qd2 Qb8 30. Qg5+ Kf8 31. Qf6 Kg8 32. Qxd6 Rxc6 33. Qxb8+ |
| ECO B52 in 1992 play it! knudsen john c defeats black's sutzbach s in 65 moves | 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. c3 g6 7. d4 cxd4 8. cxd4 Bg7 9. Nc3 Nf6 10. Be3 Ng4 11. Qd2 Nxe3 12. Qxe3 O-O 13. Rfd1 Rfd8 14. Rac1 Rac8 15. d5 Ne5 16. Nxe5 Bxe5 17. f4 Bxc3 18. bxc3 Qa4 19. e5 dxe5 20. fxe5 Qxa2 21. e6 f6 22. c4 Rxc4 23. Rxc4 Qxc4 24. d6 Qc2 25. Rc1 Qa4 26. d7 Qa5 27. Rc8 Kg7 28. Rxd8 Qxd8 29. Qxa7 Qc7 30. Qd4 Qc1+ 31. Kf2 Qc2+ 32. Ke1 Qc1+ 33. Qd1 |
| ECO B53 in 1977 play it! knudsen john c defeats black's brzezowski b in 85 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Qa5+ 6. Nc3 Bd7 7. Bxc6 Bxc6 8. Bd2 e6 9. O-O Qc7 10. Rad1 Nf6 11. Rfe1 e5 12. Nd5 Qd8 13. Nxe5 dxe5 14. Qxe5+ Be7 15. Nc7+ Kf8 16. Bb4 Nd7 17. Bxe7+ Qxe7 18. Qxe7+ Kxe7 19. Nxa8 Rxa8 20. f4 Ke6 21. Kf2 Nf6 22. e5 Ng4+ 23. Kg3 h5 24. Rd6+ Kf5 25. e6 fxe6 26. h3 h4+ 27. Kxh4 Rh8+ 28. Kg3 Nf6 29. Re5+ Kg6 30. Rdxe6 Rh5 31. Rxh5 Kxh5 32. Re5+ Kh6 33. Kf2 Bd7 34. Ke3 Kg6 35. Kd4 Bc6 36. g4 Kf7 37. c4 g6 38. f5 g5 39. b4 Bg2 40. Re3 Ne4 41. Rxe4 Bxe4 42. Kxe4 Ke7 43. Ke5 |
| ECO B24 in 1984 play it! knudsen john c defeats black's delara a in 59 moves | 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 d6 5. d3 e5 6. Nge2 Be7 7. O-O Be6 8. f4 exf4 9. gxf4 Bg4 10. h3 Bxe2 11. Nxe2 Qd7 12. c3 O-O 13. Be3 Rad8 14. Ng3 Rfe8 15. Qe2 h6 16. Rad1 Bf8 17. Nh5 Nh7 18. f5 g6 19. fxg6 fxg6 20. Nf6+ Nxf6 21. Rxf6 Re6 22. Rdf1 Rxf6 23. Rxf6 Qg7 24. Rf1 g5 25. d4 cxd4 26. Qc4+ Kh8 27. cxd4 Rd7 28. Qe6 Rd8 29. Rf7 Nxd4 30. Qc4 |
| ECO B80 in 1979 play it! knudsen john c defeats black's molloy m in 63 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bg5 Be7 7. Qd2 Nc6 8. O-O-O Bd7 9. Be2 Qc7 10. Ndb5 Qa5 11. Bxf6 gxf6 12. Nxd6+ Bxd6 13. Qxd6 Rd8 14. a3 a6 15. Qf4 Qg5 16. Qxg5 fxg5 17. Rhe1 f6 18. Bh5+ Ke7 19. g3 h6 20. f4 Bc8 21. Nd5+ exd5 22. exd5+ Kd6 23. dxc6+ Kxc6 24. Bf3+ Kb6 25. Re7 Rdf8 26. Rd6+ Ka7 27. Rd4 a5 28. Rd5 Ka6 29. Be2+ Kb6 30. Rb5+ Kc6 31. Rxa5 b6 32. Raa7 |
| ECO B22 in 1979 play it! knudsen john c defeats black's newman e in 51 moves | 1. e4 c5 2. c3 Nc6 3. d4 cxd4 4. cxd4 d6 5. Nf3 Nf6 6. Nc3 Bg4 7. d5 Ne5 8. Nxe5 Bxd1 9. Bb5+ Nd7 10. Bxd7+ Qxd7 11. Nxd7 Kxd7 12. Kxd1 Rc8 13. Be3 a6 14. Kd2 g6 15. Rac1 b5 16. Rc2 Bg7 17. Rhc1 Bxc3+ 18. Rxc3 Rxc3 19. Rxc3 Rc8 20. Rxc8 Kxc8 21. Kc3 Kc7 22. Kb4 Kc8 23. Ka5 Kb7 24. g4 e6 25. g5 exd5 26. exd5 |
| ECO B53 in 1981 play it! knudsen john c defeats black's fredrick r in 87 moves | 1. e4 c5 2. Nf3 d6 3. d4 b6 4. Bb5+ Bd7 5. Bc4 g6 6. O-O Bg7 7. Bxf7+ Kxf7 8. Ng5+ Ke8 9. Qf3 Nf6 10. e5 dxe5 11. Qxa8 Nc6 12. Qxd8+ Nxd8 13. dxe5 Ng4 14. f4 Ne6 15. Nxe6 Bxe6 16. Nc3 Rf8 17. h3 Nh6 18. Bd2 Nf5 19. Nb5 Bc4 20. Nxa7 Bxf1 21. Rxf1 Nd4 22. c3 Ne6 23. Nb5 g5 24. fxg5 Rxf1+ 25. Kxf1 Bxe5 26. Kf2 Kf7 27. Kf3 Kg6 28. h4 Kf5 29. g4+ Kg6 30. h5+ Kf7 31. Ke4 Bg3 32. Kd5 Nc7+ 33. Nxc7 Bxc7 34. Kc6 Bg3 35. Kxb6 e5 36. a4 e4 37. a5 Bf2 38. a6 e3 39. Bxe3 Bxe3 40. a7 c4+ 41. Kb7 Bxa7 42. Kxa7 Ke6 43. Kb6 Kd5 44. g6 |
| ECO B24 in 1995 play it! knudsen john c defeats black's caissa by checkmate in 71 moves | 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nge2 d6 6. O-O Nf6 7. d3 O-O 8. h3 Bd7 9. Be3 b6 10. f4 Qc7 11. Qd2 a5 12. g4 Rad8 13. Ng3 Kh8 14. Rf2 Rde8 15. Raf1 Rd8 16. f5 d5 17. exd5 Nb4 18. Nge4 gxf5 19. gxf5 Nfxd5 20. Nxd5 Nxd5 21. c3 Be5 22. Ng5 Nxe3 23. Qxe3 Bh2+ 24. Kh1 Bb5 25. f6 e6 26. Be4 Bg3 27. Rf3 Be5 28. Nxh7 Rg8 29. Qh6 Rg6 30. Bxg6 fxg6 31. Ng5+ Kg8 32. f7+ Qxf7 33. Rxf7 Bc6+ 34. Ne4 Bxc3 35. Qxg6+ Kh8 36. Rh7# |
| ECO B20 in 1973 play it! knudsen john c defeats black's dautremont in 52 moves | 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 g6 6. Bc4 Bg7 7. Qb3 e6 8. O-O Na5 9. Qa4 Nxc4 10. Qxc4 Ne7 11. Bf4 O-O 12. Nb5 a6 13. Bc7 axb5 14. Bxd8 bxc4 15. Bxe7 Re8 16. Ba3 b5 17. e5 Bb7 18. Rfe1 Red8 19. Bd6 f5 20. Nd4 Ba6 21. a4 bxa4 22. Rxa4 Rdc8 23. Rc1 Bb7 24. Rb4 Bf8 25. Rxb7 Bxd6 26. exd6 c3 |
| ECO B27 in 2007 play it! knudsen john c defeats black's lawton john in 21 moves | 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Qxd4 Nf6 5. e5 Nc6 6. Qf4 Nh5 7. Qe4 f5 8. exf6 Nxf6 9. Qa4 Bg7 10. Nc3 O-O 11. Bg5 |
| ECO B24 in 1984 play it! knudsen john c defeats black's nyman w in 55 moves | 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 g6 5. d3 Bg7 6. Nh3 e6 7. O-O Nge7 8. Be3 a6 9. f4 Qc7 10. Rb1 Bd7 11. Qd2 b6 12. Kh1 f5 13. Ng5 h6 14. Nf3 O-O-O 15. a3 Rdg8 16. d4 Na5 17. Qe2 Bc6 18. dxc5 dxc5 19. e5 Nd5 20. Nxd5 Bxd5 21. Qxa6+ Kb8 22. b3 Bb7 23. Qe2 Ka7 24. b4 cxb4 25. Rxb4 Ba6 26. Qf2 Nc4 27. Rfb1 Rb8 28. Nd4 |
| ECO B22 in 1979 play it! knudsen john c defeats black's francis j by checkmate in 55 moves | 1. e4 c5 2. c3 Nc6 3. d4 cxd4 4. cxd4 Nf6 5. Nc3 d6 6. Nf3 g6 7. Bb5 Bg7 8. d5 a6 9. Qa4 Bd7 10. dxc6 axb5 11. cxd7+ Qxd7 12. Qxa8+ Qd8 13. Qxd8+ Kxd8 14. Be3 b4 15. Nd5 Nxe4 16. Rc1 Bxb2 17. Bb6+ Kd7 18. O-O Bxc1 19. Rxc1 Ra8 20. Nd4 Nc5 21. Nxb4 Ra4 22. Rb1 Na6 23. Nxa6 bxa6 24. Rc1 Rxa2 25. h3 Rb2 26. Rc7+ Ke8 27. Rc8+ Kd7 28. Rd8# |
| ECO B25 in 1984 play it! knudsen john c defeats black's singleton m in 97 moves | 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nh3 Bd7 7. O-O Qc8 8. Nf4 Rb8 9. Be3 b5 10. Rb1 h5 11. Qd2 h4 12. Rfe1 hxg3 13. fxg3 Nf6 14. Nce2 Ng4 15. h4 Bh6 16. Nd5 Nxe3 17. Nxe3 Ne5 18. Nf4 Bxf4 19. gxf4 Ng4 20. Nxg4 Bxg4 21. Qf2 Bh3 22. Qg3 Bd7 23. e5 dxe5 24. Rxe5 Rb6 25. Rbe1 Re6 26. f5 gxf5 27. Qg7 Rf8 28. h5 Rxe5 29. Qxe5 e6 30. h6 Ke7 31. Qxf5 Rg8 32. h7 Rg7 33. h8=Q Qxh8 34. Qxc5+ Kd8 35. Qxa7 Qh5 36. Qf2 Ke8 37. Qe2 Rg4 38. Qe5 Rg5 39. Qe2 Qh3 40. Qe4 f5 41. Qa8+ Ke7 42. Re2 Qh5 43. Kf1 Rg3 44. Qa3+ Ke8 45. Qd6 Qg5 46. Qe5 Rg4 47. Qh8+ Ke7 48. Qe5 Qc1+ 49. Kf2 |
| ECO B51 in 1994 play it! knudsen john c defeats black's asaturyan sergei in 21 moves | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. Bxd7+ Bxd7 5. O-O e5 6. Nc3 Nf6 7. d3 Be7 8. Re1 O-O 9. Qe2 Re8 10. h3 Bc6 11. Be3 |
| ECO B51 in 2007 play it! knudsen john c defeats black's wright allen f in 51 moves | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. O-O Nf6 5. Re1 a6 6. Bf1 g6 7. c3 Bg7 8. d4 cxd4 9. cxd4 O-O 10. Nc3 b5 11. Bd2 Bb7 12. Bd3 Nb6 13. Qe2 e6 14. Rac1 Qd7 15. h3 Rfc8 16. a3 Nc4 17. Bg5 Rc7 18. a4 Rac8 19. axb5 axb5 20. b3 Na3 21. Nxb5 Rxc1 22. Bxc1 Nxb5 23. Bxb5 Bc6 24. Bd3 Qb7 25. Ba6 Qxb3 26. Bxc8 |