| ECO B22 in 1980 play it! knudsen john c defeats black's jackson j in 49 moves | 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Bc4 Nb6 6. Bb3 d6 7. Nf3 dxc3 8. Nxc3 Nc6 9. Bf4 d5 10. O-O Bg4 11. h3 Bxf3 12. gxf3 e6 13. Qe2 Be7 14. Kh1 Nd4 15. Qd3 Nxb3 16. axb3 O-O 17. Rg1 g6 18. Rg2 Bc5 19. Bg5 Qc7 20. Bf6 Nd7 21. Nb5 Qb6 22. Rag1 Nxf6 23. exf6 a6 24. Qd2 Qxb5 25. Qh6 |
| ECO B30 in 1992 play it! knudsen john c defeats black's mansor in 89 moves | 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Nf6 5. Re1 Bg4 6. h3 Bh5 7. Bxc6+ bxc6 8. d3 h6 9. Nbd2 e6 10. b3 Be7 11. Bb2 O-O 12. Nf1 Rb8 13. Ng3 Bg6 14. e5 Nd5 15. exd6 Bxd6 16. Ne4 Bxe4 17. dxe4 Nf4 18. e5 Be7 19. Re4 Qxd1+ 20. Rxd1 Rb4 21. Rxb4 cxb4 22. Rd7 Bc5 23. Bd4 Ne2+ 24. Kf1 Nxd4 25. Nxd4 Bxd4 26. Rxd4 c5 27. Rd7 a5 28. Rc7 Rd8 29. Rxc5 Rd5 30. Rxd5 exd5 31. Ke2 Kf8 32. Kd3 Ke7 33. Kd4 Ke6 34. f4 f6 35. g4 fxe5+ 36. fxe5 g5 37. Kc5 Kxe5 38. Kb5 Kd4 39. Kxa5 Kc3 40. Kb5 Kxc2 41. Kc5 Kb2 42. Kxb4 Kxa2 43. Kc5 Kxb3 44. Kxd5 Kc3 45. Ke4 |
| ECO B31 in 1992 play it! knudsen john c defeats black's wermuth r in 51 moves | 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. c3 Bg7 5. O-O e6 6. Bxc6 bxc6 7. d4 cxd4 8. cxd4 Ne7 9. Nc3 O-O 10. Bg5 f6 11. Be3 d5 12. Rc1 e5 13. dxe5 fxe5 14. exd5 cxd5 15. Qb3 Kh8 16. Bc5 Rxf3 17. gxf3 Bh3 18. Rfd1 Bh6 19. Be3 Bxe3 20. fxe3 Nf5 21. Ne4 Nh4 22. Qxd5 Nxf3+ 23. Kh1 Qh4 24. Qxa8+ Kg7 25. Rc7+ Kh6 26. Qf8+ |
| ECO B25 in 1996 play it! knudsen john c defeats black's stalker by checkmate in 97 moves | 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 Nf6 7. h3 O-O 8. Be3 Qb6 9. Rb1 Re8 10. O-O Ne5 11. f4 Ned7 12. Qd2 Qa5 13. a3 Qc7 14. g4 Nb6 15. Ng3 h5 16. g5 Nfd7 17. h4 Nf8 18. f5 Bd7 19. Rf2 Rac8 20. Rbf1 Bc6 21. Nce2 Bxb2 22. fxg6 fxg6 23. Nf4 e5 24. Nh3 Na4 25. Nf5 gxf5 26. Rxf5 Bxa3 27. Qf2 Nc3 28. Rf7 Qd8 29. Qf5 Ne2+ 30. Kh2 Rc7 31. g6 Nd4 32. Bxd4 cxd4 33. Qxh5 Bd5 34. exd5 Rce7 35. Ng5 Bc1 36. Nh7 Nd7 37. Nf6+ Nxf6 38. R1xf6 Rxf7 39. gxf7+ Kg7 40. Qg6+ Kh8 41. fxe8=Q+ Qxe8 42. Rf7 Bf4+ 43. Kh1 Qxf7 44. Qxf7 Bh6 45. Be4 Bg7 46. h5 a5 47. h6 Bxh6 48. Qg6 Bf8 49. Qh7# |
| ECO B32 in 1991 play it! knudsen john c defeats black's pauk p in 87 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d6 5. Nc3 Nf6 6. Be2 g6 7. O-O Bg7 8. Be3 Bd7 9. h3 O-O 10. Qd2 a6 11. f4 Nxd4 12. Bxd4 Bc6 13. Bf3 Nd7 14. Bxg7 Kxg7 15. Qd4+ f6 16. Nd5 e5 17. Qd2 Nb6 18. b3 Nxd5 19. exd5 Bd7 20. Rae1 b5 21. fxe5 fxe5 22. Be4 Qe7 23. c4 Qh4 24. Qe2 Qg3 25. Qd3 Qxd3 26. Bxd3 Bf5 27. Bxf5 gxf5 28. c5 Kf6 29. c6 Rac8 30. g4 f4 31. Kg2 h5 32. Kf3 Rh8 33. Rh1 Rc7 34. Ke4 Rch7 35. g5+ Kxg5 36. h4+ Kf6 37. Rhg1 Ke7 38. Rg6 Rh6 39. Rg7+ Kf6 40. Rd7 R6h7 41. Rxd6+ Kf7 42. Rg1 Re8 43. Rgg6 Re7 44. Rdf6+ |
| ECO B43 in 1991 play it! knudsen john c defeats black's gaman w in 61 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Nf6 7. O-O Nc6 8. Nxc6 bxc6 9. Qe2 e5 10. Be3 Be7 11. f4 d6 12. h3 O-O 13. Rad1 exf4 14. Rxf4 Bb7 15. Rdf1 Rfe8 16. Qf2 Bc8 17. g4 Be6 18. Ne2 d5 19. Ng3 Bd6 20. exd5 Bxd5 21. Nf5 Be5 22. Nxg7 Bxf4 23. Bxf4 Qa7 24. Qxa7 Rxa7 25. Nxe8 Nxe8 26. Re1 Ng7 27. Bh6 Ne6 28. c4 Bf3 29. Kf2 Rd7 30. Bc2 Re7 31. Bf5 |
| ECO B26 in 1983 play it! knudsen john c defeats black's larimer k in 65 moves | 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e5 7. Qd2 Nf6 8. O-O-O Be6 9. Kb1 O-O 10. Nge2 Ng4 11. h3 Nxe3 12. fxe3 a6 13. Rdf1 Qc7 14. Rf2 b5 15. Nd5 Qd8 16. Rhf1 Rb8 17. c3 f6 18. g4 Ne7 19. Nxf6+ Bxf6 20. Rxf6 Rxf6 21. Rxf6 Qd7 22. Ng3 Kg7 23. Rf1 Rf8 24. Rxf8 Kxf8 25. d4 c4 26. Qf2+ Kg8 27. Qf6 a5 28. Ne2 exd4 29. exd4 Bf7 30. Qg5 Kg7 31. e5 h6 32. Qf6+ Kg8 33. Qxd6 |
| ECO B30 in 1992 play it! knudsen john c defeats black's haller p in 89 moves | 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O d6 5. c3 Nf6 6. Re1 a6 7. Bxc6+ bxc6 8. d4 cxd4 9. cxd4 Be7 10. Nc3 d5 11. e5 Nd7 12. Bf4 c5 13. Rc1 Rb8 14. Qe2 O-O 15. Nxd5 exd5 16. e6 fxe6 17. Qxe6+ Rf7 18. Qxd5 Rxb2 19. dxc5 Rb5 20. Ng5 Bxg5 21. Bxg5 Qf8 22. Be7 Nb6 23. Qd6 Rxe7 24. Qxe7 Nd5 25. Qd6 Qxd6 26. cxd6 Bd7 27. Re5 Nf6 28. f4 Rd5 29. Rxd5 Nxd5 30. Re1 Bb5 31. g3 Kf8 32. Kf2 Nb4 33. Rd1 Ke8 34. Re1+ Kd7 35. Re7+ Kxd6 36. Rxg7 Nxa2 37. Rxh7 Nc3 38. g4 Nd5 39. Rh6+ Kc5 40. f5 Bc4 41. f6 Nf4 42. g5 a5 43. g6 Nd3+ 44. Ke3 Ne5 45. Rh5 |
| ECO B23 in 1995 play it! knudsen john c defeats black's caissa by checkmate in 105 moves | 1. e4 c5 2. Nc3 d6 3. g3 g6 4. Bg2 Bg7 5. Nge2 Nc6 6. d3 Nf6 7. O-O O-O 8. h3 Bd7 9. Be3 Qc8 10. Kh2 a5 11. Qd2 Qc7 12. f4 b6 13. Rf2 Rad8 14. Raf1 h5 15. f5 gxf5 16. exf5 Ne5 17. Ne4 Nfg4+ 18. hxg4 Nxg4+ 19. Kg1 Nxf2 20. Rxf2 e5 21. f6 Bh8 22. Bh6 Bg4 23. Qg5+ Kh7 24. Bxf8 Rxf8 25. Nxd6 Rg8 26. Be4+ Rg6 27. Bxg6+ fxg6 28. f7 Bg7 29. f8=Q Bxf8 30. Rxf8 Qxd6 31. Rf6 Qxf6 32. Qxf6 Bxe2 33. Qxb6 c4 34. dxc4 Kg7 35. Qxa5 Kf6 36. c5 Ke6 37. c6 e4 38. c7 Kd7 39. Qc5 Ba6 40. b4 e3 41. b5 Bb7 42. b6 e2 43. Kf2 e1=Q+ 44. Kxe1 Ke6 45. c8=Q+ Bxc8 46. Qxc8+ Kd5 47. b7 g5 48. b8=Q Kd4 49. Qb4+ Ke5 50. Qcc5+ Kf6 51. Qbb6+ Kf7 52. Qcc7+ Kg8 53. Qbb8# |
| ECO C40 in 1980 play it! knudsen john c defeats black's eash d by checkmate in 59 moves | 1. e4 e5 2. Nf3 Qf6 3. Bc4 Bc5 4. d3 Nc6 5. Nc3 d6 6. Bg5 Qg6 7. Nd5 Bg4 8. Qd2 Nd4 9. Nxd4 exd4 10. Nxc7+ Kd7 11. Nxa8 Nf6 12. f3 Bh5 13. O-O-O Rxa8 14. g4 Bxg4 15. fxg4 Nxg4 16. Rdf1 f6 17. Bf4 Re8 18. Bb5+ Ke7 19. Bxe8 Kxe8 20. Rhg1 Qf7 21. Rxg4 Qxa2 22. Kd1 Qxb2 23. Rxg7 Bb4 24. Qc1 Qa3 25. Qxa3 Bxa3 26. Rfg1 d5 27. Rxh7 a5 28. Rg8+ Bf8 29. Bh6 a4 30. Rxf8# |
| ECO C27 in 1980 play it! knudsen john c defeats black's mack t in 55 moves | 1. e4 e5 2. Nc3 Nf6 3. Bc4 c6 4. Nf3 d5 5. exd5 cxd5 6. Bb5+ Bd7 7. Nxe5 Qe7 8. Qe2 d4 9. Bxd7+ Nbxd7 10. Nxd7 dxc3 11. Nxf6+ gxf6 12. Qxe7+ Bxe7 13. bxc3 O-O-O 14. Bb2 Rde8 15. O-O-O f5 16. Rhe1 Rhg8 17. g3 Bd6 18. d4 f4 19. c4 fxg3 20. fxg3 Be7 21. d5 Bg5+ 22. Kb1 Be3 23. d6 Kd7 24. Bf6 Bc5 25. Re7+ Rxe7 26. dxe7+ Bd6 27. c5 Ke6 28. Rxd6+ |
| ECO C34 in 1980 play it! knudsen john c defeats black's phillpott k in 99 moves | 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Qe7 5. d4 g6 6. Be2 Nd5 7. O-O Bg7 8. Nc3 Ne3 9. Bxe3 fxe3 10. Qd3 O-O 11. Qxe3 d6 12. Rad1 Re8 13. Nd5 Qd8 14. Qc3 c6 15. Nf4 Bh6 16. Nd3 Be6 17. Kh1 Na6 18. g3 Nc7 19. Nf4 Nd5 20. Nxd5 Bxd5 21. Bc4 dxe5 22. dxe5 Rxe5 23. Qxe5 Bxf3+ 24. Kg1 Qxd1 25. Rxd1 Bxd1 26. Qc7 Kh8 27. Qxb7 Rd8 28. Qxf7 Rf8 29. Qxa7 Bxc2 30. Qa3 Be4 31. Qc5 Bg7 32. Qe3 Bd5 33. Bxd5 cxd5 34. b4 d4 35. Qd3 Rd8 36. b5 Kg8 37. b6 Bh6 38. Qc4+ Kh8 39. Qc7 Be3+ 40. Kg2 Rf8 41. b7 Rf2+ 42. Kh3 Rf8 43. b8=Q Rxb8 44. Qxb8+ Kg7 45. a4 h5 46. a5 Kh6 47. a6 g5 48. Qd6+ Kg7 49. a7 h4 50. a8=Q |
| ECO C27 in 1981 play it! knudsen john c defeats black's nettnin p in 85 moves | 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. d3 Nc6 5. Nf3 h6 6. O-O d6 7. Be3 Bxe3 8. fxe3 Bg4 9. a4 O-O 10. h3 Bh5 11. g4 Nxg4 12. hxg4 Bxg4 13. Qd2 Qd7 14. Rf2 Ne7 15. Nh2 c6 16. Nxg4 Qxg4+ 17. Rg2 Qd7 18. Rf1 d5 19. exd5 cxd5 20. Bb5 Qd6 21. d4 e4 22. Qf2 f5 23. Qf4 Qxf4 24. Rxf4 Kh7 25. Be2 g5 26. Rf1 f4 27. exf4 gxf4 28. Bg4 f3 29. Rg3 Rg8 30. Kh2 Rad8 31. Nd1 Rg5 32. Be6 Rxg3 33. Kxg3 Kg6 34. Ne3 Kf6 35. Bh3 Kg5 36. c3 h5 37. Rg1 Rd6 38. Kf2+ Kh6 39. a5 b6 40. axb6 axb6 41. Ra1 Rg6 42. Ra7 Rg7 43. Rxe7 |
| ECO C68 in 1996 play it! knudsen john c defeats black's roemer in 55 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Nf6 8. f3 Bc5 9. Be3 Ba7 10. Kf2 c5 11. Nb3 c4 12. Nd4 c5 13. Ne2 Be6 14. Nf4 O-O 15. Nc3 b5 16. Rad1 Rad8 17. Ncd5 Nxd5 18. Nxd5 f5 19. Ne7+ Kh8 20. exf5 Bd7 21. Rd6 Rf6 22. Rhd1 Rxd6 23. Rxd6 Bb8 24. Rxa6 Bxh2 25. g3 Re8 26. Bxc5 h5 27. Kg2 Bxg3 28. Kxg3 |
| ECO C21 in 1996 play it! knudsen john c defeats black's eutenmuller by checkmate in 61 moves | 1. e4 e5 2. d4 d6 3. Nf3 Nc6 4. Bc4 Nf6 5. Nc3 Bg4 6. Bg5 Be7 7. Bb5 a6 8. Bxc6+ bxc6 9. dxe5 dxe5 10. Qxd8+ Rxd8 11. Nxe5 Be6 12. Nxc6 Rd7 13. O-O O-O 14. Nxe7+ Rxe7 15. e5 h6 16. exf6 Rd7 17. fxg7 Kxg7 18. Bf4 Bc4 19. Rfe1 Rc8 20. Rad1 Be6 21. Rxd7 Bxd7 22. Re7 Bf5 23. Rxc7 Re8 24. h3 Re1+ 25. Kh2 Bxc2 26. Nd5 Be4 27. Be5+ Kg6 28. Ne7+ Kg5 29. f4+ Kh5 30. g4+ Kh4 31. Bf6# |
| ECO C68 in 1996 play it! knudsen john c defeats black's vatter ludwig in 37 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Bc5 8. Nb3 Bb6 9. O-O Be6 10. Nc3 O-O-O 11. Na4 Ba7 12. Nac5 Bc4 13. Re1 h6 14. Be3 Nf6 15. f3 Rhg8 16. Nxb7 Bxe3+ 17. Rxe3 Rd7 18. N3a5 Rgd8 19. Nxd8 |
| ECO C21 in 2007 play it! knudsen john c defeats black's baer in 47 moves | 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 d6 5. Nxc3 Nf6 6. Qb3 Qd7 7. Nf3 a6 8. Ng5 d5 9. Nxd5 Nxd5 10. Bxd5 Qe7 11. Nxf7 c6 12. Bg5 Qb4+ 13. Bd2 Qxb3 14. Bxb3 Nd7 15. Nxh8 Ne5 16. O-O Bd7 17. f4 Bc5+ 18. Kh1 Ng6 19. Nf7 Nf8 20. f5 Bxf5 21. Rxf5 Bd4 22. Nd6+ Ke7 23. Bf4 Ne6 24. Rf7+ |
| ECO C83 in 1985 play it! knudsen john c defeats black's troester p in 85 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Nbd2 O-O 11. Qe2 Nc5 12. Nd4 Nxb3 13. N2xb3 Nxd4 14. cxd4 Qd7 15. Be3 f6 16. Rac1 fxe5 17. dxe5 c6 18. Nc5 Bxc5 19. Bxc5 Rf4 20. Bd6 a5 21. Rc5 Re4 22. Qd2 a4 23. Rfc1 Ra6 24. a3 h5 25. f3 Rc4 26. Qg5 Qf7 27. Kf2 Rxc1 28. Rxc1 Qe8 29. f4 Kh7 30. Ke3 g6 31. h3 Ra7 32. g4 Rg7 33. Kd4 hxg4 34. hxg4 Kg8 35. Rh1 Rh7 36. Rxh7 Kxh7 37. f5 gxf5 38. gxf5 Bf7 39. e6 Bxe6 40. fxe6 Qxe6 41. Qe7+ Qxe7 42. Bxe7 Kg6 43. Kc5 |
| ECO C44 in 1979 play it! knudsen john c defeats black's washington k by checkmate in 53 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 Qe7 5. Bd3 dxc3 6. Nxc3 Ne5 7. O-O Nxd3 8. Qxd3 c6 9. e5 d5 10. Bg5 Qc7 11. Rac1 Qb6 12. Rfe1 Be6 13. b3 Be7 14. Na4 Qd8 15. Bxe7 Nxe7 16. Nd4 O-O 17. Nc5 Qb6 18. Re3 Bc8 19. e6 f5 20. Nd7 Bxd7 21. exd7 Rf7 22. Rce1 Qd8 23. Ne6 Qxd7 24. Ng5 f4 25. Qxh7+ Kf8 26. Qh8+ Ng8 27. Nh7# |
| ECO C44 in 1979 play it! knudsen john c defeats black's colton b in 23 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Bc4 cxb2 6. Bxb2 d5 7. Bxd5 Be6 8. O-O Qd7 9. Qe2 Nge7 10. Rd1 O-O-O 11. Nc3 Kb8 12. Bxc6 |