| ECO D02 in 1973 play it! oppedal david defeats black's hutton b in 43 moves | 1. d4 d5 2. Nf3 Nc6 3. Bf4 Nf6 4. c4 Bg4 5. e3 e6 6. Nc3 Ne4 7. Bd3 Bb4 8. Rc1 Qf6 9. Bxc7 O-O 10. O-O Ng5 11. Be2 h5 12. cxd5 Bxc3 13. dxc6 Nh3+ 14. Kh1 Rac8 15. Be5 Qg6 16. cxb7 f6 17. bxc8=Q fxe5 18. Qxc3 e4 19. gxh3 Bxf3+ 20. Bxf3 Rxf3 21. Qxf3 exf3 22. Rg1 |
| ECO D09 in 1972 play it! oppedal david defeats black's shonburn l in 49 moves | 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Be6 6. Nbd2 Qd7 7. Bg2 O-O-O 8. a3 Be7 9. O-O Bh3 10. Qa4 Kb8 11. b4 b6 12. Bxh3 Qxh3 13. Qxc6 h5 14. Ne4 Qf5 15. Neg5 Rh6 16. Qe4 Qd7 17. Nxf7 h4 18. Bxh6 Rf8 19. Bxg7 hxg3 20. Bxf8 gxh2+ 21. Kh1 Bxf8 22. e6 Qe7 23. Nxd4 Qf6 24. Nc6+ Kc8 25. Ncd8 |
| ECO D02 in 1973 play it! oppedal david defeats black's lowe s by checkmate in 49 moves | 1. d4 d5 2. Nf3 Nc6 3. c4 Bg4 4. e3 e6 5. Be2 Bb4+ 6. Nbd2 Nf6 7. O-O Bxd2 8. Bxd2 O-O 9. Rc1 Ne4 10. Re1 f5 11. Qb3 Bxf3 12. Qxb7 Nxd2 13. gxf3 Qd6 14. cxd5 Qxd5 15. Qxc6 Nxf3+ 16. Bxf3 Qxc6 17. Rxc6 Rab8 18. b3 Kf7 19. Rxc7+ Kg6 20. Kh1 Rfd8 21. Rg1+ Kf6 22. Rgxg7 Rf8 23. Rxh7 Rb6 24. h4 Ra6 25. Rh6# |
| ECO D02 in 1973 play it! oppedal david defeats black's lowenstein d in 57 moves | 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bd3 Bb7 9. Rd1 Nbd7 10. Nc3 Qc7 11. e4 cxd4 12. Nxd4 Bc5 13. Nf3 O-O 14. Bg5 Ng4 15. Bh4 Nde5 16. Bg3 Rad8 17. Rac1 h5 18. Nxe5 Nxe5 19. Qxh5 Bxf2+ 20. Kxf2 Nxd3+ 21. Rxd3 Qb6+ 22. Ke2 b4 23. Bf2 Qc6 24. Rh3 Qc4+ 25. Ke1 f6 26. Ne2 Qxe4 27. Qh8+ Kf7 28. Rc7+ Ke8 29. Qxf8+ |
| ECO D31 in 1991 play it! oppedal david defeats black's haines william c in 105 moves | 1. d4 d5 2. c4 e6 3. Nc3 f5 4. Bf4 c6 5. e3 Nf6 6. Nf3 Be7 7. h3 O-O 8. Bd3 Ne4 9. Qc2 Nd7 10. O-O-O Qa5 11. Kb1 Ndf6 12. Ne5 Nxc3+ 13. bxc3 Ne4 14. Bxe4 fxe4 15. h4 Qd8 16. Qe2 Qe8 17. h5 b6 18. Qg4 c5 19. Rh3 Rf5 20. Rdh1 cxd4 21. Rg3 Bf6 22. cxd4 Qf8 23. Qd1 Ba6 24. Nd7 Qb4+ 25. Qb3 Qxc4 26. Nxf6+ Rxf6 27. Be5 Rf7 28. Qxc4 Bxc4 29. Rh4 Bd3+ 30. Ka1 Rd8 31. Rhg4 Rdd7 32. Rg5 Kf8 33. f4 exf3 34. gxf3 h6 35. R5g4 Bf5 36. Rh4 Bh7 37. Rh1 Rf5 38. Rc1 Rd8 39. Rc7 Rxh5 40. Rgxg7 Rxe5 41. dxe5 Bf5 42. Rxa7 Rc8 43. Rgc7 Rd8 44. Rd7 Rc8 45. Rac7 Ra8 46. Kb2 h5 47. Rf7+ Kg8 48. Rf6 Ra4 49. Kb3 b5 50. Rb7 Bd3 51. a3 d4 52. exd4 Rxd4 53. Kc3 |
| ECO D06 in 1970 play it! oppedal david defeats black's roach r in 95 moves | 1. d4 d5 2. c4 Nf6 3. cxd5 Nxd5 4. Nf3 e6 5. e4 Nf6 6. Nc3 Bb4 7. Bd3 Nbd7 8. O-O O-O 9. Qc2 c5 10. e5 Bxc3 11. bxc3 Nd5 12. Bg5 f6 13. Bxh7+ Kh8 14. Nh4 fxg5 15. Ng6+ Kxh7 16. Nxf8+ Kg8 17. Nxe6 Qe7 18. Qg6 Nxe5 19. dxe5 Bxe6 20. Rac1 Nf4 21. Qc2 Bc4 22. Rfe1 Nd3 23. Re4 Nxe5 24. Rce1 Bd3 25. Qxd3 Nxd3 26. Rxe7 Nxe1 27. Rxe1 Rd8 28. g3 Rd2 29. Re5 Rxa2 30. Rxc5 a5 31. Rxg5 Kf7 32. h4 Kf6 33. Rb5 Rc2 34. Rxa5 Rxc3 35. Rb5 Rc7 36. Kg2 Ke6 37. g4 Kf6 38. Kg3 g6 39. g5+ Kf7 40. Kg4 Kg7 41. h5 gxh5+ 42. Kxh5 Rf7 43. f4 Rxf4 44. Rxb7+ Rf7 45. Rxf7+ Kxf7 46. Kh6 Kg8 47. Kg6 Kf8 48. Kh7 |
| ECO D54 in 1971 play it! oppedal david defeats black's vitteli r in 97 moves | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Rc1 b6 7. cxd5 Nxd5 8. Bxe7 Qxe7 9. Nxd5 exd5 10. Qc2 Qb4+ 11. Qc3 Qxc3+ 12. Rxc3 c6 13. Bd3 Re8 14. Nf3 Bg4 15. Ne5 Bd7 16. Nxd7 Nxd7 17. Rxc6 Rac8 18. Rxc8 Rxc8 19. Kd2 Nf6 20. f3 Kf8 21. Rc1 Rxc1 22. Kxc1 Ke7 23. Kc2 Kd6 24. Kc3 a5 25. e4 dxe4 26. fxe4 Ng4 27. h3 Nf2 28. e5+ Kd5 29. Bc4+ Kc6 30. Bxf7 Nd1+ 31. Kb3 Ne3 32. g4 g5 33. Kc3 Nd1+ 34. Kd3 Nf2+ 35. Ke3 Nxh3 36. d5+ Kd7 37. d6 Nf4 38. Ke4 Ne6 39. Bxe6+ Kxe6 40. b3 b5 41. a3 b4 42. axb4 axb4 43. Kd4 h5 44. Ke3 hxg4 45. Kf2 Kd7 46. Kg3 Ke6 47. Kxg4 Kf7 48. Kxg5 Ke6 49. Kf4 |
| ECO D06 in 1971 play it! oppedal david defeats black's de woolfson in 111 moves | 1. d4 d5 2. c4 Nf6 3. cxd5 Nxd5 4. e4 Nf6 5. Nc3 e6 6. Nf3 Be7 7. Bd3 O-O 8. O-O b6 9. Qe2 Bb7 10. Bg5 Nbd7 11. Rfd1 h6 12. Bh4 Nh7 13. Bxe7 Qxe7 14. Rac1 a6 15. Bb1 Ng5 16. Nd2 Rfe8 17. Nf1 Nf6 18. f3 e5 19. d5 Nh5 20. Rd2 Qd6 21. Ne3 Nf4 22. Qd1 b5 23. Kh1 Rad8 24. Bd3 Bc8 25. Bf1 h5 26. Ne2 h4 27. Nxf4 exf4 28. Nc2 h3 29. Nd4 g6 30. Rdc2 hxg2+ 31. Bxg2 Bh3 32. Rc6 Qe5 33. Rxc7 Kg7 34. Ne2 Rh8 35. Qd4 Qxd4 36. Nxd4 Bxg2+ 37. Kxg2 Rde8 38. Ra7 Rh5 39. Rxa6 Reh8 40. Rh1 Rc8 41. Rc6 Ra8 42. a3 b4 43. axb4 Rb8 44. b5 Nxf3 45. Kxf3 Rh3+ 46. Kxf4 Rd3 47. Rc4 Kf6 48. e5+ Kg7 49. d6 Kf8 50. Ke4 Rd2 51. b4 Rb2 52. Rhc1 Rxh2 53. Rc8+ Rxc8 54. Rxc8+ Kg7 55. d7 f5+ 56. exf6+ |
| ECO D02 in 1973 play it! oppedal david defeats black's doppelmeyer e in 101 moves | 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 Bf5 5. Bf4 e6 6. e3 Bd6 7. Bxd6 Qxd6 8. Qb3 Qc7 9. Rc1 Nbd7 10. cxd5 cxd5 11. Be2 O-O 12. O-O Qb6 13. Qxb6 Nxb6 14. Nb5 a6 15. Nd6 Bg6 16. Nxb7 Rfb8 17. Nc5 Nbd7 18. Nxd7 Nxd7 19. b3 a5 20. Rc7 Nb6 21. Rfc1 Rc8 22. Ne5 Rxc7 23. Rxc7 Rc8 24. Rxc8+ Nxc8 25. Nxg6 hxg6 26. Kf1 Kf8 27. Ke1 Ke7 28. Kd2 Nb6 29. Kc3 Kd6 30. b4 axb4+ 31. Kxb4 Kc7 32. Bb5 f6 33. Kc5 g5 34. a4 Nc8 35. f3 Nd6 36. g4 Nb7+ 37. Kb4 Nd6 38. Bd3 Nb7 39. e4 Kb6 40. h3 Na5 41. exd5 exd5 42. Bb5 Nb7 43. Bd7 Na5 44. Be8 Ka6 45. Kc5 Nb3+ 46. Kxd5 Nd2 47. Ke6 Nxf3 48. d5 Nd4+ 49. Ke7 Kb6 50. d6 Kb7 51. Bb5 |
| ECO D02 in 1970 play it! oppedal david defeats black's martino w in 105 moves | 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bd3 c4 9. Bc2 Bb7 10. Rd1 Be7 11. e4 O-O 12. Nbd2 Nbd7 13. e5 Nd5 14. Ne4 f5 15. exf6 N5xf6 16. Nxf6+ Rxf6 17. Bxh7+ Kxh7 18. Ng5+ Kg8 19. Qh5 Rh6 20. Qf7+ Kh8 21. Nxe6 Qg8 22. Qxg8+ Rxg8 23. Bxh6 gxh6 24. g3 h5 25. f4 Nf6 26. Re1 Bb4 27. Re5 Bf3 28. Ng5 Bd5 29. a3 Bd6 30. Ree1 h4 31. Rad1 hxg3 32. hxg3 Nh5 33. Ne4 Bxf4 34. Kf2 Nxg3 35. Nf6 Rg5 36. Re7 Ne4+ 37. Nxe4 Bxe4 38. Rxe4 Rf5 39. Ke2 Bc7 40. d5 Re5 41. Kf3 Rf5+ 42. Kg4 Rf8 43. Rh1+ Kg8 44. Re7 Rf4+ 45. Kg5 Bd8 46. Kxf4 Bxe7 47. Ke5 Kf7 48. Rh7+ Ke8 49. Ke6 c3 50. Rxe7+ Kd8 51. bxc3 a5 52. d6 b4 53. d7 |
| ECO D02 in 1973 play it! oppedal david defeats black's gilbert m in 51 moves | 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Nbd7 5. Bg5 c6 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Bxf6 Nxf6 10. Bd3 Re8 11. O-O e5 12. dxe5 Rxe5 13. Nf3 Rh5 14. Rac1 Bg4 15. Nd4 dxc4 16. Bxc4 Bd6 17. g3 Rh3 18. f3 Qh5 19. fxg4 Qxg4 20. Qf5 Rxg3+ 21. Kh1 Qh4 22. Bxf7+ Kxf7 23. Qe6+ Kg6 24. Qxd6 Rxe3 25. Rg1+ Kh6 26. Nf5+ |
| ECO D21 in 1971 play it! oppedal david defeats black's dunlop c by checkmate in 41 moves | 1. d4 d5 2. c4 dxc4 3. Nf3 Nc6 4. e4 Bg4 5. d5 Ne5 6. Nbd2 e6 7. Be2 Nxf3+ 8. Nxf3 Qd6 9. O-O O-O-O 10. Qa4 Bxf3 11. Bxf3 a6 12. Rd1 Qe5 13. g3 h5 14. Bf4 Qf5 15. exf5 exd5 16. Bxd5 c6 17. Bxc6 Rxd1+ 18. Rxd1 Be7 19. Bd7+ Kd8 20. Qa5+ b6 21. Qxb6# |
| ECO D31 in 1971 play it! oppedal david defeats black's bales j in 65 moves | 1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 Nf6 6. Bg5 dxc4 7. a3 Ba5 8. e4 h6 9. Bxf6 Qxf6 10. Rd1 b5 11. Be2 Bb7 12. O-O Bxc3 13. Qxc3 O-O 14. b3 cxb3 15. Bxb5 Ne7 16. Rfe1 Qf4 17. Nd2 f5 18. Qxb3 fxe4 19. Qxe6+ Rf7 20. Nxe4 Bxe4 21. Rxe4 Qxf2+ 22. Kh1 Rb8 23. Rf1 Qxf1+ 24. Bxf1 Rb6 25. Qa2 Rb2 26. Qc4 Rc2 27. Qe6 Rc6 28. Qa2 Rc2 29. Qb3 Rb2 30. Qd1 Rd2 31. Qe1 Rdf2 32. Bc4 Ng6 33. Qxf2 |
| ECO A40 in 1992 play it! oppedal david defeats black's macfarland james in 77 moves | 1. d4 e6 2. c4 Nf6 3. Nf3 d5 4. Nc3 Bb4 5. Qc2 dxc4 6. e3 Qd5 7. Bd2 Bxc3 8. Bxc3 b5 9. a4 c6 10. b3 cxb3 11. Qb2 O-O 12. Nd2 Nbd7 13. Be2 bxa4 14. Rxa4 Nb6 15. Ra5 Qxg2 16. Bf3 Qg6 17. Bxc6 Rb8 18. Qxb3 Bd7 19. Bf3 Nbd5 20. Qa3 Nxc3 21. Qxc3 Rfc8 22. Rc5 Nd5 23. Qa5 h5 24. Be4 f5 25. Bf3 h4 26. Qxa7 Rxc5 27. dxc5 Qe8 28. Rg1 Ra8 29. Qb7 Ra1+ 30. Nb1 Ne7 31. Qb2 Rxb1+ 32. Qxb1 Bc6 33. Qb2 g6 34. Bxc6 Qxc6 35. Qd4 Kf7 36. Ke2 Qb5+ 37. Kd2 Nd5 38. Ra1 Nf6 39. Ra7+ |
| ECO A40 in 1991 play it! oppedal david defeats black's macfarland james in 45 moves | 1. d4 e6 2. c4 Nf6 3. Nf3 d5 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. e4 b4 10. Na4 c5 11. e5 Nd5 12. dxc5 Qa5 13. O-O h6 14. Re1 Nxc5 15. Nxc5 Bxc5 16. Qe2 Qb6 17. Bd2 Rd8 18. Rac1 O-O 19. Rxc5 Qxc5 20. Qe4 g6 21. Bxh6 Nf4 22. Qxf4 Rxd3 23. Qf6 |
| ECO A40 in 1974 play it! oppedal david defeats black's swartz in 65 moves | 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 c6 5. Nf3 Be7 6. O-O O-O 7. Nc3 d5 8. Bf4 Ne4 9. Qc2 g5 10. Bd2 g4 11. Ne5 Nxd2 12. Qxd2 Bg5 13. e3 Qe8 14. f4 Be7 15. c5 Nd7 16. Nxd7 Bxd7 17. b4 h5 18. a4 h4 19. Rf2 Rf6 20. Bf1 Rh6 21. Rb1 Kf7 22. b5 Qh8 23. Rg2 hxg3 24. hxg3 Rh1+ 25. Kf2 Qh3 26. Ke1 Rh8 27. Qf2 Qh6 28. Rb2 Qg7 29. Kd2 R8h7 30. bxc6 Bxc6 31. Kd3 R7h2 32. Rxh2 Rxh2 33. Qxh2 |
| ECO A40 in 1993 play it! oppedal david defeats black's macfarland james in 75 moves | 1. d4 e6 2. c4 Nf6 3. g3 d5 4. Bg2 c5 5. Nf3 cxd4 6. Nxd4 e5 7. Nf3 d4 8. O-O Nc6 9. Bg5 Be7 10. Bxf6 Bxf6 11. Nfd2 O-O 12. Qc2 Bg4 13. Ne4 Be7 14. h3 Bh5 15. g4 Bg6 16. Qb3 Na5 17. Qb5 Qc7 18. Nbd2 a6 19. Qa4 f5 20. gxf5 Bxf5 21. Rac1 Nc6 22. c5 Nd8 23. a3 Bd7 24. Qb3+ Be6 25. Qg3 Nf7 26. Nf3 Rad8 27. Rfd1 Bd5 28. Nxd4 Bxe4 29. Bxe4 Ng5 30. Nf5 Rxd1+ 31. Rxd1 Bd8 32. Bd5+ Kh8 33. Qg4 Bf6 34. b4 a5 35. h4 Nf7 36. Be6 g6 37. Rd7 Qc8 38. Rxf7 |
| ECO A40 in 1972 play it! oppedal david defeats black's markman s in 71 moves | 1. d4 e6 2. c4 b6 3. Nf3 Bb7 4. g3 d5 5. Bg2 Nd7 6. O-O Ngf6 7. Nc3 a6 8. b3 c5 9. cxd5 Nxd5 10. Bb2 N7f6 11. Rc1 Be7 12. Qc2 Nb4 13. Qb1 cxd4 14. Rfd1 Bxf3 15. Bxf3 Rc8 16. a3 Nc6 17. Ne4 Nd5 18. Qa1 f5 19. Nd2 e5 20. Bxd5 Qxd5 21. Nc4 Qd8 22. f4 exf4 23. gxf4 O-O 24. Rd3 Qd5 25. Nxb6 Qe4 26. Nxc8 Rxc8 27. Bxd4 Qxe2 28. Rg3 Rc7 29. Rxg7+ Kf8 30. Re1 Nxd4 31. Rxe2 Nxe2+ 32. Kg2 Nxf4+ 33. Kf3 Nd5 34. Rxh7 Rc3+ 35. Ke2 Kg8 36. Rxe7 |
| ECO A40 in 1971 play it! oppedal david defeats black's katz stewart in 65 moves | 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 d5 6. O-O O-O 7. Qc2 Nc6 8. Nc3 dxc4 9. Bf4 Nd5 10. Be5 Bf6 11. Rfd1 b6 12. Nb5 a6 13. Na3 b5 14. Rac1 Nce7 15. Nb1 Bb7 16. b3 Nb6 17. bxc4 Nxc4 18. Nbd2 Bd5 19. e4 fxe4 20. Nxe4 Bxe5 21. dxe5 Bxe4 22. Qxe4 Qe8 23. Ng5 Ng6 24. Qg4 Ngxe5 25. Qxe6+ Kh8 26. Bxa8 Qxa8 27. Qd5 Qa7 28. Qd4 c5 29. Qe4 g6 30. f4 Ng4 31. Qe6 Nf6 32. Rd8 Qg7 33. Nf7+ |
| ECO A81 in 1971 play it! oppedal david defeats black's roberts l in 61 moves | 1. d4 f5 2. g3 e6 3. Bg2 d5 4. Nf3 Nf6 5. O-O Be7 6. c4 c6 7. Nbd2 O-O 8. Qc2 Qe8 9. Ne5 Nbd7 10. Nd3 Bd6 11. b3 Qh5 12. Bb2 Ng4 13. Nf3 Rf6 14. h3 Nh6 15. Nfe5 g5 16. Qd2 Bxe5 17. dxe5 Rf8 18. cxd5 cxd5 19. Rac1 Nb6 20. Rc7 Rf7 21. Rfc1 Rxc7 22. Rxc7 Nf7 23. Ba3 a5 24. Bc5 Nd7 25. Qc3 b6 26. Bd4 Ba6 27. Rxd7 Rc8 28. Rc7 Rxc7 29. Qxc7 Bxd3 30. Qc8+ Kg7 31. exd3 |