| ECO A06 in 1883 play it! zukertort johann defeats black's rosenthal samuel in 63 moves | 1. Nf3 d5 2. d4 e6 3. e3 Nf6 4. c4 Be7 5. Nc3 O-O 6. Be2 c5 7. O-O Nc6 8. b3 Ne4 9. Bb2 cxd4 10. Nxe4 dxe4 11. Nxd4 f6 12. Nxc6 bxc6 13. Qc2 f5 14. c5 Qc7 15. b4 Rb8 16. Bc3 Bf6 17. Rad1 Bd7 18. Bxf6 Rxf6 19. Rd6 Rxb4 20. Qd2 Rb7 21. Ba6 Be8 22. Bxb7 Qxb7 23. Rd8 Rf8 24. Qd6 Qf7 25. Rb1 e5 26. Rbb8 f4 27. exf4 Qxf4 28. Qxf8+ Kxf8 29. Rxe8+ Kf7 30. Rf8+ Ke6 31. Rxf4 exf4 32. Rd8 |
| ECO A06 in 1883 play it! zukertort johann defeats black's mason james in 115 moves | 1. Nf3 d5 2. d4 Nf6 3. e3 Bg4 4. Be2 Bxf3 5. Bxf3 e6 6. O-O Bd6 7. c4 c6 8. Nc3 Nbd7 9. b3 Rc8 10. Bd2 Bb8 11. Re1 h5 12. cxd5 cxd5 13. e4 dxe4 14. Nxe4 Nxe4 15. Bxe4 Nf6 16. Bxb7 Bxh2+ 17. Kf1 Rb8 18. Qf3 Bd6 19. Bg5 Be7 20. Rad1 O-O 21. Bxf6 Bxf6 22. Be4 g6 23. d5 exd5 24. Rxd5 Qb6 25. Qg3 Bg7 26. Rd6 Qc5 27. Red1 Rbe8 28. Bd5 Qc2 29. Bc4 Kh7 30. R6d2 Qf5 31. Qc7 Bc3 32. Rd3 Bg7 33. Rd5 Qf6 34. Qxa7 Ra8 35. Qc5 Rxa2 36. b4 Rc2 37. Rxh5+ Kg8 38. Rh3 Rc3 39. Rxc3 Qxc3 40. b5 Bf6 41. b6 Kg7 42. b7 Rh8 43. Kg1 Be5 44. Qd5 Bh2+ 45. Kf1 Qf6 46. Qxf7+ Qxf7 47. Bxf7 Kxf7 48. g3 Bxg3 49. fxg3 Ke6 50. Kg2 Rb8 51. Rb1 Kf5 52. Kf3 Kg5 53. Rb5+ Kf6 54. Kg4 Kg7 55. Kg5 Kh7 56. Rb6 Kg7 57. Rxg6+ Kf7 58. Rb6 |
| ECO A06 in 1880 play it! zukertort johann defeats black's rosenthal samuel in 117 moves | 1. Nf3 d5 2. d4 Bf5 3. e3 e6 4. c4 Nf6 5. a3 Bd6 6. Nc3 c6 7. b4 a6 8. Bb2 Nbd7 9. Be2 Ne4 10. Nxe4 Bxe4 11. c5 Bc7 12. O-O O-O 13. Nd2 Bg6 14. a4 Nf6 15. f3 Qb8 16. f4 Ne4 17. Nxe4 Bxe4 18. Qd2 Qd8 19. b5 axb5 20. axb5 Qd7 21. b6 Rxa1 22. Rxa1 Bb8 23. Bc3 Qe7 24. Qb2 h6 25. Be1 Kh7 26. Bg3 f5 27. Bf1 Rg8 28. Qf2 Rf8 29. Be2 Rg8 30. Ra8 Rf8 31. Ra3 Rg8 32. h4 Qf7 33. Ra1 Qe7 34. h5 Qf7 35. Bh4 Re8 36. Qg3 Rg8 37. Ra8 Re8 38. Kf2 Kg8 39. Qg6 Qxg6 40. hxg6 Kf8 41. g3 Rc8 42. Ke1 Ke8 43. Kd2 Bg2 44. Kc3 Bh3 45. Ba6 Kd7 46. Bxb7 Re8 47. Kb4 Bg4 48. Ka5 Bh5 49. Ba6 Bxg6 50. Ra7+ Bxa7 51. bxa7 Kc7 52. Be7 Ra8 53. Bd6+ Kd8 54. Kb6 Be8 55. Bb7 Rxa7 56. Kxa7 g5 57. Kb6 g4 58. Bxc6 Bf7 59. Bb5 |
| ECO A06 in 1883 play it! zukertort johann defeats black's englisch berthol in 135 moves | 1. Nf3 d5 2. d4 e6 3. e3 c5 4. Be2 Nf6 5. O-O Nc6 6. b3 Be7 7. Bb2 O-O 8. c4 cxd4 9. exd4 b6 10. Nbd2 Bb7 11. Rc1 Rc8 12. Bd3 Ba6 13. Re1 Na5 14. Qe2 Bb4 15. a3 Bd6 16. c5 Bxd3 17. Qxd3 Bf4 18. Rc2 Nc6 19. b4 Bb8 20. b5 Ne7 21. a4 Ng6 22. cxb6 Qxb6 23. Ba3 Bd6 24. a5 Qb8 25. Bc5 Nd7 26. Rec1 Ne7 27. Nb3 Rfe8 28. g3 h6 29. Bxd6 Qxd6 30. Nc5 Nf8 31. Ne5 f6 32. Nc6 Nxc6 33. Nb7 Qb4 34. bxc6 e5 35. Rc5 exd4 36. Nd6 Re1+ 37. Rxe1 Qxe1+ 38. Kg2 Qe7 39. Nxc8 Qxc5 40. Qa6 d3 41. Qxd3 Qxa5 42. Ne7+ Kf7 43. Nxd5 Qc5 44. c7 Qc6 45. f3 Ne6 46. Qb3 Ke8 47. Qb5 Qxb5 48. c8=Q+ Kf7 49. Qxe6+ Kxe6 50. Nc7+ Ke5 51. Nxb5 a6 52. f4+ Ke4 53. Nd6+ Kd3 54. Nb7 Ke3 55. f5 Ke2 56. g4 Ke3 57. Kg3 Ke2 58. Na5 Ke3 59. Nb3 Ke2 60. h3 Ke3 61. h4 Ke2 62. Kf4 Kf2 63. g5 h5 64. gxf6 gxf6 65. Nc5 Kg2 66. Nxa6 Kh3 67. Nc5 Kxh4 68. Ne4 |
| ECO A04 in 1883 play it! zukertort johann defeats black's noa joseph by checkmate in 109 moves | 1. Nf3 e6 2. d4 Nf6 3. e3 b6 4. Be2 Bb7 5. O-O Be7 6. c4 O-O 7. Nc3 d5 8. b3 c5 9. Bb2 Nbd7 10. Nd2 Re8 11. Bf3 cxd4 12. exd4 Bb4 13. Re1 Nf8 14. a3 Be7 15. b4 Ng6 16. c5 Nf4 17. Nb3 Rc8 18. Qd2 g5 19. h4 N6h5 20. Bxh5 Nxh5 21. hxg5 Bxg5 22. Qd1 Nf4 23. b5 Kh8 24. c6 Ba8 25. Ne2 Rg8 26. Bc1 Nxg2 27. Kxg2 Bxc1+ 28. Ng3 Bf4 29. Qf3 Qd6 30. Rh1 Rg7 31. Rh3 f6 32. Rah1 Bxc6 33. bxc6 Rxc6 34. Qd3 Rcc7 35. Nd2 e5 36. Nf1 exd4 37. Qxd4 Be5 38. Qa4 Qe6 39. Qb3 Qc6 40. Kg1 Qc4 41. Qf3 Qc5 42. R1h2 Qd6 43. Rg2 Qe6 44. Nf5 Rxg2+ 45. Kxg2 Qg8+ 46. N1g3 Qf7 47. Nh6 Qe8 48. Qxd5 Rg7 49. Nf5 Rg5 50. Qb7 Qg6 51. Qc8+ Qg8 52. Qd7 Qa8+ 53. Kg1 h5 54. Rxh5+ Rxh5 55. Qg7# |
| ECO A13 in 1881 play it! zukertort johann defeats black's blackburne josep in 87 moves | 1. c4 e6 2. e3 Nf6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. d4 Nbd7 7. b3 Bd6 8. Bb2 O-O 9. Be2 Re8 10. O-O Nf8 11. Rc1 c6 12. b4 dxc4 13. Bxc4 Ng6 14. Bd3 Qe7 15. Ne4 Nxe4 16. Bxe4 Rac8 17. Qb3 Rf8 18. Ne5 Nxe5 19. dxe5 Bb8 20. Rfd1 Rfd8 21. Rxd8+ Qxd8 22. b5 Qe8 23. Qd1 h6 24. h3 Rd8 25. Qc2 Bc8 26. bxc6 Bc7 27. f4 a5 28. a4 Ba6 29. Ba3 b5 30. axb5 Bxb5 31. Bd6 Bb6 32. Qb3 f5 33. Bxf5 a4 34. Qxe6+ Kh8 35. Qxe8+ Rxe8 36. Kf2 g5 37. fxg5 a3 38. c7 Ba6 39. c8=Q Bxc8 40. Bxc8 a2 41. Bb7 Bc7 42. Ra1 Rb8 43. Bd5 Rb2+ 44. Kf3 |
| ECO A30 in 1881 play it! zukertort johann defeats black's schwarz j in 85 moves | 1. c4 c5 2. e3 e6 3. d4 cxd4 4. exd4 d5 5. Nc3 Nf6 6. Nf3 Nc6 7. c5 Bd7 8. a3 Ne4 9. Nxe4 dxe4 10. Ng5 f5 11. Bc4 Qf6 12. d5 exd5 13. Qxd5 Nd8 14. Be3 h6 15. Rd1 Bc6 16. Qd2 Be7 17. Nh3 Ne6 18. b4 Rd8 19. Qc1 Rxd1+ 20. Kxd1 g5 21. Re1 f4 22. b5 fxe3 23. bxc6 exf2 24. Nxf2 bxc6 25. Nxe4 Qd4+ 26. Nd2 Nxc5 27. Qb1 Qd6 28. Kc1 Rf8 29. Rd1 Rf2 30. Qh7 g4 31. Qg8+ Rf8 32. Qxg4 Nd3+ 33. Kc2 Ne5 34. Qc8+ Qd8 35. Qxd8+ Bxd8 36. Re1 Bc7 37. Nf3 Rxf3 38. gxf3 Kd7 39. Be2 Nf7 40. f4 c5 41. Bh5 Nd6 42. f5 Nc4 43. f6 |
| ECO A13 in 1887 play it! zukertort johann defeats black's taubenhaus jean in 87 moves | 1. c4 e6 2. d4 d5 3. Nc3 Nf6 4. Bf4 Bd6 5. Bg5 Be7 6. e3 b6 7. Nf3 Bb7 8. Rc1 c5 9. dxc5 bxc5 10. cxd5 exd5 11. Bb5+ Nbd7 12. O-O O-O 13. Bxd7 Qxd7 14. Ne5 Qf5 15. f4 Rfd8 16. g4 Qe6 17. f5 Qc8 18. Na4 Qc7 19. Bf4 Bd6 20. Nxc5 Bxc5 21. Nd3 Bxe3+ 22. Bxe3 Qd7 23. Nc5 Qe7 24. Bg5 Bc6 25. Qd4 Re8 26. Nd3 Rac8 27. Rfe1 Qd6 28. Bxf6 Rxe1+ 29. Rxe1 gxf6 30. Nf4 Rb8 31. a3 Re8 32. Rxe8+ Bxe8 33. Nh5 Kf8 34. Nxf6 h6 35. Nxd5 f6 36. Qxf6+ Qxf6 37. Nxf6 Bf7 38. Kf2 Ke7 39. Ne4 Bd5 40. Ke3 a5 41. Kd4 Bb3 42. h4 Bd1 43. g5 Bg4 44. Ke5 |
| ECO A13 in 1883 play it! zukertort johann defeats black's blackburne josep in 45 moves | 1. c4 e6 2. e3 Nf6 3. Nf3 b6 4. Be2 Bb7 5. O-O d5 6. d4 Bd6 7. Nc3 O-O 8. b3 Nbd7 9. Bb2 Qe7 10. Nb5 Ne4 11. Nxd6 cxd6 12. Nd2 Ndf6 13. f3 Nxd2 14. Qxd2 dxc4 15. Bxc4 d5 16. Bd3 Rfc8 17. Rae1 Rc7 18. e4 Rac8 19. e5 Ne8 20. f4 g6 21. Re3 f5 22. Be4 dxe4 23. d5 |
| ECO A13 in 1883 play it! zukertort johann defeats black's blackburne josep in 65 moves | 1. c4 e6 2. e3 Nf6 3. Nf3 b6 4. Be2 Bb7 5. O-O d5 6. d4 Bd6 7. Nc3 O-O 8. b3 Nbd7 9. Bb2 Qe7 10. Nb5 Ne4 11. Nxd6 cxd6 12. Nd2 Ndf6 13. f3 Nxd2 14. Qxd2 dxc4 15. Bxc4 d5 16. Bd3 Rfc8 17. Rae1 Rc7 18. e4 Rac8 19. e5 Ne8 20. f4 g6 21. Re3 f5 22. exf6 Nxf6 23. f5 Ne4 24. Bxe4 dxe4 25. fxg6 Rc2 26. gxh7+ Kh8 27. d5+ e5 28. Qb4 R8c5 29. Rf8+ Kxh7 30. Qxe4+ Kg7 31. Bxe5+ Kxf8 32. Bg7+ Kg8 33. Qxe7 |
| ECO A20 in 1880 play it! zukertort johann defeats black's rosenthal samuel in 73 moves | 1. c4 e5 2. e3 Nf6 3. Nc3 Nc6 4. Nf3 Bb4 5. d4 exd4 6. exd4 d5 7. a3 Bxc3+ 8. bxc3 O-O 9. h3 Re8+ 10. Be3 Ne7 11. Bd3 Nf5 12. Ne5 dxc4 13. Bxc4 Nd6 14. Bb3 Be6 15. O-O Nd5 16. Bd2 Ne4 17. c4 Ndc3 18. Bxc3 Nxc3 19. Qc2 Qxd4 20. Nf3 Qf6 21. Rfc1 Ne2+ 22. Qxe2 Bxh3 23. Qd2 h6 24. Qc3 Qf4 25. gxh3 Re6 26. Re1 Rg6+ 27. Kf1 Rf6 28. Re3 Qf5 29. Ke2 Qxh3 30. Rg1 Kh8 31. Bc2 Rd8 32. Qe5 Qd7 33. Rd1 Rd6 34. Rxd6 cxd6 35. Qe7 g6 36. Qf6+ Kg8 37. Re7 |
| ECO A10 in 1875 play it! zukertort johann defeats black's potter william in 54 moves | 1. c4 g6 2. d4 Bg7 3. Nf3 d6 4. e3 f5 5. Be2 c6 6. O-O Qc7 7. Nc3 e5 8. e4 Ne7 9. dxe5 dxe5 10. c5 h6 11. Bc4 Nd7 12. Qd6 Qa5 13. exf5 gxf5 14. Re1 Rf8 15. Bxh6 Rf6 16. Bxg7 Rxd6 17. cxd6 Ng6 18. Rad1 b5 19. Be6 b4 20. Bxd7+ Bxd7 21. Nxe5 O-O-O 22. Nxg6 bxc3 23. Bxc3 Qa4 24. Rd4 Qxa2 25. Rb4 Be6 26. Ne7+ Kd7 27. Rb7+ Kxd6 |
| ECO A13 in 1882 play it! zukertort johann defeats black's hruby vincenz in 95 moves | 1. c4 e6 2. e3 Nf6 3. Nf3 d5 4. d4 b6 5. Be2 Bb7 6. O-O Be7 7. Nc3 O-O 8. Bd2 c5 9. Rc1 cxd4 10. Nxd4 Nc6 11. Nxc6 Bxc6 12. Bf3 Rc8 13. cxd5 Nxd5 14. Nxd5 Bxd5 15. Rxc8 Qxc8 16. Bxd5 exd5 17. Bc3 Rd8 18. Qa4 Qd7 19. Qa6 Bd6 20. Rd1 f6 21. g3 Be5 22. Bd4 h5 23. Qe2 Qf5 24. Bxe5 fxe5 25. e4 Qf7 26. exd5 Rxd5 27. Rxd5 Qxd5 28. Qxh5 Qd4 29. Qe2 Kf7 30. Kg2 Ke6 31. h4 Qd5+ 32. Qf3 Qxa2 33. Qg4+ Kf7 34. Qf5+ Kg8 35. Qxe5 Qb3 36. g4 Qc4 37. f3 Qc2+ 38. Kg3 Qc1 39. Qe8+ Kh7 40. Qe4+ Kg8 41. g5 Qc7+ 42. f4 Qd8 43. h5 a5 44. h6 b5 45. Qe6+ Kh7 46. Qf5+ Kg8 47. g6 Qe8 48. Qf7+ |
| ECO A02 in 1869 play it! zukertort johann defeats black's nn in 51 moves | 1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 Nh6 5. d4 Ng4 6. Bg5 f6 7. Bh4 Ne3 8. Qd3 Qe7 9. Bf2 Bf4 10. Bxe3 Bxe3 11. Nbd2 O-O 12. O-O-O Nc6 13. Kb1 Nb4 14. Qb3+ Be6 15. Nc4 Bh6 16. e4 b5 17. d5 bxc4 18. Bxc4 Rab8 19. dxe6 Nd5 20. Rxd5 Rxb3 21. Rd7 Qc5 22. Bxb3 Kh8 23. e7 Re8 24. Bf7 Qxe7 25. Bxe8 Qxe8 26. Rhd1 |
| ECO A02 in 1868 play it! zukertort johann defeats black's schmidt in 60 moves | 1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 Nh6 5. d4 Ng4 6. Bg5 f6 7. Bh4 Qe7 8. Qd3 O-O 9. e4 Re8 10. Nbd2 Bf5 11. Qb3+ Kh8 12. e5 Nc6 13. O-O-O Bb4 14. h3 Nh6 15. c3 Ba5 16. g4 Bg6 17. g5 Ng8 18. gxf6 gxf6 19. Bc4 Qd7 20. Bxg8 Rxg8 21. Bxf6+ Rg7 22. h4 h5 23. Rdg1 Qe8 24. Rxg6 Qxg6 25. Rg1 Qh6 26. Qc2 Rg8 27. Rg6 Qe3 28. Ng5 Qe1+ 29. Qd1 Qxd1+ 30. Kxd1 Rf8 |
| ECO A02 in 1869 play it! zukertort johann defeats black's nn in 49 moves | 1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 Nh6 5. d4 Ng4 6. Bg5 f6 7. Bh4 Ne3 8. Qd3 Qe7 9. Bf2 Bf4 10. Bxe3 Bxe3 11. Nbd2 O-O 12. O-O-O Nc6 13. Kb1 Nb4 14. Qb3+ Be6 15. Nc4 Bh6 16. e4 b5 17. d5 bxc4 18. Bxc4 Bf7 19. d6 Qxe4 20. Bxf7+ Rxf7 21. d7 Rd8 22. Rhe1 Qc6 23. Re8+ Rxe8 24. d8=Q g6 25. Rd7 |
| ECO A02 in 1869 play it! zukertort johann defeats black's schmidt in 44 moves | 1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 Nh6 5. d4 Ng4 6. Bg5 f6 7. Bh4 O-O 8. e4 Re8 9. Bc4+ Kf8 10. Qe2 Qe7 11. Nbd2 Bf5 12. Bd3 c5 13. c3 Nc6 14. O-O Rad8 15. e5 Qd7 16. Bxf5 Qxf5 17. Ng5 Qc8 18. Qe4 Nh6 19. Qxh7 Bxe5 20. dxe5 Rxd2 21. Qh8+ Ng8 22. exf6 gxf6 |
| ECO A00 in 1875 play it! zukertort johann defeats black's potter william in 69 moves | 1. e3 e6 2. Nf3 b6 3. d4 Bb7 4. Be2 Nf6 5. O-O Be7 6. c4 O-O 7. Nc3 d5 8. b3 Ne4 9. Nxe4 dxe4 10. Nd2 Bd6 11. f4 f5 12. Bb2 Rf6 13. Rc1 Rh6 14. Rf2 Nd7 15. Nf1 Qe7 16. g4 fxg4 17. Bxg4 Nf6 18. Rg2 c5 19. Rcc2 Rf8 20. Rcd2 Ba8 21. d5 exd5 22. cxd5 Bb7 23. Be6+ Kh8 24. Ng3 Rg6 25. f5 Rg5 26. Bxf6 Qxf6 27. Nxe4 Bxh2+ 28. Kxh2 Qe5+ 29. Ng3 Rf6 30. Qf3 Rh6+ 31. Kg1 Rh3 32. Qf4 Qxf4 33. exf4 Rgxg3 34. Rxg3 Rxg3+ 35. Kh2 |
| ECO B23 in 1882 play it! zukertort johann defeats black's paulsen louis in 71 moves | 1. e4 c5 2. Nc3 Nc6 3. Nf3 Qb6 4. g3 e6 5. Bg2 Nge7 6. O-O Nd4 7. Ne2 Nec6 8. d3 d6 9. c3 Nxf3+ 10. Bxf3 Be7 11. Qc2 O-O 12. Bg2 Bd7 13. Be3 Rac8 14. f4 f5 15. b4 fxe4 16. dxe4 Qa6 17. bxc5 dxc5 18. Rfd1 Rcd8 19. Bf1 c4 20. Rd2 e5 21. Rad1 exf4 22. gxf4 Nb8 23. Qb1 Ba4 24. Rxd8 Bxd8 25. Rd2 Nd7 26. Nd4 Ba5 27. Rg2 Nc5 28. Nf5 Ne6 29. Qe1 Kh8 30. Qg3 g6 31. Ne7 Bb6 32. f5 Bxe3+ 33. Qxe3 gxf5 34. Ng6+ Kg7 35. Nxf8+ Kxf8 36. exf5 |
| ECO B23 in 1881 play it! zukertort johann defeats black's blackburne josep in 61 moves | 1. e4 c5 2. Nc3 e6 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 Bb4 6. Nb5 Nf6 7. a3 Bxc3+ 8. Nxc3 O-O 9. Be2 d5 10. exd5 exd5 11. Bg5 Re8 12. O-O d4 13. Bxf6 Qxf6 14. Nd5 Qd6 15. Bf3 Be6 16. c4 Rad8 17. Re1 Qc5 18. Rc1 a6 19. b4 Qd6 20. g3 Ne5 21. Bg2 b5 22. c5 Qb8 23. c6 Rxd5 24. c7 Qc8 25. f4 Nc4 26. Bxd5 Bxd5 27. Rxe8+ Qxe8 28. Qxd4 Bb7 29. Qd8 Qf8 30. Re1 Nd6 31. Re7 |