1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Ne7 8. Nh4 Bxc3 9. bxc3 Ng6 10. Nxg6 fxg6 11. Bc4+ Kh8 12. f4 Qe8 13. Qd2 Be6 14. Bb3 a5 15. fxe5 dxe5 16. Bxe6 Qxe6 17. c4 b6 18. Rf3 Nd7 19. Raf1 Rxf3 20. Rxf3 Kg8 21. Be3 Qd6 22. Qe1 Nf8 (22... Qb4) (22... Rf8) 23. Qb1 Ne6 24. Qb5 c5 25. Kf2 h6 26. Qb2 Re8 27. g3 Qc7 28. Kg2 g5 29. Rf5 Nd8 30. Bd2 Nf7 31. Bc3 Re6 32. Qa1 Qe7 33. g4 Rf6 34. Qf1 Re6 35. Qa1 Rf6 36. Qb1 Re6 37. Qb2 Kh7 38. h3 Kg8 39. Kf1 Kh7 40. Ke1 Kg8 41. Kd2 g6 42. Rf1 Rf6 43. Qa1 Rf4 44. Ke2 h5 45. Bd2 hxg4 46. hxg4 (46. Bxf4 gxf4 47. hxg4 Qh4) 46... Rxg4 47. Rf2 Rg3 (47... Rf4) 48. Qf1 Qe6 49. Be3 Qg4+ 50. Kd2 Rg1 51. Qe2 Nh6 52. Rh2 Nf7 $2 53. Bxg1 Qxg1 54. Rg2 (54. Rf2 $1) 54... Qa1 55. Qf3 $2 (55. Rf2 Qh1 56. Rf6) 55... Qh1 $8 56. Qf2 Qh3 57. Rg3 Qe6 58. Rf3 Kg7 59. Qh2 g4 60. Rf1 Ng5 61. Kc3 Nf3 62. Qg3 Qd7 63. Rxf3 Qd4+ 64. Kd2 gxf3 65. Qxf3 Qd6 66. Qg4 Qf6 1/2-1/2

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Opening: Four Knights (C49)
Player profiles: Korchnoi, Vallejo-Pons

Novelty of stem-game: 13. Qd2

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Ne7  8. Nh4 Bxc3  9. bxc3 Ng6  10. Nxg6 fxg6  11. Bc4 Kh8  12. f4 Qe8

page 1 of 1; 2 games    Game   Result Moves Year Event/Locale Opening 1. Adams vs Korchnoi   ½-½ 39 1996 It (cat.17) C49 Four Knights 2. Vallejo-Pons vs Korchnoi   ½-½ 66 2004 Korchnoi Vs. Vallejo C49 Four Knights

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1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Ne7  8. Nh4 Bxc3  9. bxc3

page 1 of 1; 3 games    Game   Result Moves Year Event/Locale Opening 1. Duras vs Leonhardt   0-1 61 1907 Karlsbad C49 Four Knights 2. K Moll vs Teichmann 0-1 42 1907 Berlin C49 Four Knights 3. Y Shaposhnikov vs Korchnoi   0-1 35 1958 Tashkent C49 Four Knights

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1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Ne7  8. Nh4

page 1 of 2; games 1-25 of 42  Game   Result Moves Year Event/Locale Opening 1. H Wolf vs Janowski   ½-½ 72 1906 15th DSB Kongress (Nuremberg) C49 Four Knights 2. Tarrasch vs Janowski 1-0 30 1907 Ostend (Championship) C49 Four Knights 3. Schlechter vs Janowski   1-0 51 1907 Ostend (Championship) C49 Four Knights 4. K Treybal vs K Moll 1-0 21 1907 Berlin C49 Four Knights 5. J Perlis vs Salwe   1-0 26 1909 St Petersburg C49 Four Knights 6. Capablanca vs C Portela 1-0 26 1911 Buenos Aires casual C49 Four Knights 7. Capablanca vs Loman 1-0 17 1911 London C49 Four Knights 8. Schlechter vs Duras 1-0 43 1911 San Sebastian C49 Four Knights 9. E Tennenwurzel vs M Smith   0-1 31 1911 New York Masters C49 Four Knights 10. Spielmann vs L Forgacs   1-0 28 1912 San Sebastian C49 Four Knights 11. E Cohn vs P F Johner   1-0 23 1912 Bad Pistyan C49 Four Knights 12. E Cohn vs Yates   ½-½ 47 1912 Bad Pistyan C49 Four Knights 13. Opocensky vs J Hrdina 1-0 19 1913 **Rd--()-, Prague C49 Four Knights 14. Spielmann vs J Perlis   1-0 34 1913 Vienna C49 Four Knights 15. Lasker vs J Feuerstein ½-½ 33 1917 HUN tour sim C49 Four Knights 16. W Schlage vs Ahues   0-1 40 1921 21. DSB Kongress C49 Four Knights 17. P Krueger vs G Schories   0-1 49 1921 21. DSB Kongress C49 Four Knights 18. Tarrasch vs Yates   1-0 72 1922 Hastings C49 Four Knights 19. Tarrasch vs Yates 0-1 40 1923 Karlsbad C49 Four Knights 20. F Apsenieks vs Euwe 1-0 35 1924 Paris C49 Four Knights 21. F Bohatirchuk vs Yates   ½-½ 66 1925 Moscow C49 Four Knights 22. Tylor vs Lasker 0-1 45 1936 Nottingham C49 Four Knights 23. A Lundqvist vs V Borsony   1-0 37 1956 2nd World Correspondence Chess Championship C49 Four Knights 24. Bagirov vs Korchnoi   ½-½ 24 1963 USSR Championship C49 Four Knights 25. J Marcus vs Timman   0-1 43 1964 Rotterdam C49 Four Knights  page 1 of 2; games 1-25 of 42

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1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Ne7

page 1 of 2; games 1-25 of 32  Game   Result Moves Year Event/Locale Opening 1. Csank vs J Bauer   1-0 80 1890 Kolisch Memorial C49 Four Knights 2. Schiffers vs Steinitz   ½-½ 35 1896 Nuremberg C49 Four Knights 3. Alapin vs Janowski   ½-½ 51 1897 Berlin C49 Four Knights 4. Schiffers vs H Suechting   ½-½ 32 1897 Berlin C49 Four Knights 5. G Marco vs Maroczy   ½-½ 35 1898 Vienna C49 Four Knights 6. G H Koehler vs Marshall   1-0 42 1898 ch Manhattan CC C49 Four Knights 7. Schiffers vs Halprin   1-0 59 1898 Vienna C49 Four Knights 8. Janowski vs Showalter   1-0 62 1898 Janowski vs. Showalter Match 1 C49 Four Knights 9. J Corzo vs Capablanca 0-1 68 1901 Capablanca - Corzo C49 Four Knights 10. Schiffers vs Janowski   0-1 59 1901 RUS-ch02 C49 Four Knights 11. H Shoosmith vs Salwe   ½-½ 48 1907 Ostende-B C49 Four Knights 12. H Wolf vs P F Johner   ½-½ 26 1907 Karlsbad C49 Four Knights 13. Leonhardt vs Teichmann   ½-½ 34 1907 Karlsbad C49 Four Knights 14. Salwe vs Rubinstein 0-1 99 1908 Prague C49 Four Knights 15. Prokes vs Janowski   0-1 63 1908 Prague C49 Four Knights 16. Schlechter vs Janowski   ½-½ 61 1908 Prague C49 Four Knights 17. F Treybal vs Teichmann   0-1 45 1908 Prague C49 Four Knights 18. Von Bardeleben vs H Wolf   1-0 38 1908 16th DSB Kongress, Duesseldorf C49 Four Knights 19. Tartakower vs Spielmann   0-1 43 1910 Vienna C49 Four Knights 20. L Forgacs vs Leonhardt   ½-½ 35 1910 Hamburg C49 Four Knights 21. Tarrasch vs Spielmann 0-1 32 1910 Hamburg C49 Four Knights 22. L Forgacs vs Salwe   ½-½ 31 1910 Hamburg C49 Four Knights 23. Yates vs Spielmann   0-1 31 1910 Hamburg C49 Four Knights 24. S Rozental vs Ahues   0-1 25 1910 Hamburg Hauptturnier-A C49 Four Knights 25. Maroczy vs Yates   1-0 66 1922 London C49 Four Knights  page 1 of 2; games 1-25 of 32

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1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5

page 1 of 17; games 1-25 of 409  Game   Result Moves Year Event/Locale Opening 1. H Gifford vs Mackenzie   0-1 48 1878 Paris C49 Four Knights 2. M Bier vs F Riemann   ½-½ 23 1880 WSB-13.Kongress C49 Four Knights 3. Paulsen vs V Hruby   ½-½ 31 1882 Vienna C49 Four Knights 4. Mackenzie vs Zukertort 0-1 49 1883 London C49 Four Knights 5. Englisch vs S Rosenthal   1-0 23 1883 London C49 Four Knights 6. Burn vs Mackenzie   ½-½ 28 1887 08.01 R19 GER Frankf C49 Four Knights 7. J Mason vs Burn   ½-½ 28 1889 Breslau C49 Four Knights 8. Chigorin vs Pillsbury 0-1 26 1895 St. Petersburg 1895-96 C49 Four Knights 9. Chigorin vs Pillsbury   ½-½ 32 1896 Budapest C49 Four Knights 10. Chigorin vs Pillsbury ½-½ 34 1896 Budapest C49 Four Knights 11. K Walbrodt vs H Suechting 0-1 21 1897 Berlin C49 Four Knights 12. G H Koehler vs L Schmidt   ½-½ 29 1898 New York Manhattan CC-ch C49 Four Knights 13. Lipke vs Schlechter   ½-½ 32 1898 Vienna C49 Four Knights 14. Lasker vs NN   1-0 37 1898 GBR tour sim C49 Four Knights 15. Alapin vs Schlechter 0-1 34 1898 Vienna C49 Four Knights 16. Tarrasch vs Pillsbury 1-0 46 1898 Vienna C49 Four Knights 17. Janowski vs H Caro 1-0 63 1898 Vienna C49 Four Knights 18. Janowski vs Tarrasch 1-0 54 1898 Vienna C49 Four Knights 19. D G Baird vs Pillsbury 0-1 34 1898 Vienna C49 Four Knights 20. Maroczy vs Pillsbury ½-½ 40 1899 London C49 Four Knights 21. J D Tresling vs A Van Foreest   ½-½ 31 1899 Amsterdam C49 Four Knights 22. Janowski vs G Marco ½-½ 26 1901 Monte Carlo C49 Four Knights 23. A M Levin vs H Suechting   ½-½ 29 1902 13th DSB Kongress (Hanover) C49 Four Knights 24. Teichmann vs W Napier   ½-½ 30 1902 Monte Carlo C49 Four Knights 25. E Farago vs A Hild   1-0 23 1904 DSB-14.Kongress Hauptturnier B C49 Four Knights  page 1 of 17; games 1-25 of 409

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1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6

page 1 of 8; games 1-25 of 186  Game   Result Moves Year Event/Locale Opening 1. J Mason vs Zukertort ½-½ 67 1882 Vienna C49 Four Knights 2. Max Weiss vs Zukertort 1-0 82 1882 Vienna C49 Four Knights 3. A Fritz vs K Leffmann   ½-½ 23 1883 Nuremberg C49 Four Knights 4. F Riemann vs M Lange   ½-½ 32 1883 Nuremberg C49 Four Knights 5. Paulsen vs V Hruby   ½-½ 40 1883 Nuremberg C49 Four Knights 6. Paulsen vs Harmonist 1-0 28 1887 DSB-05.Kongress C49 Four Knights 7. H Charlick vs W Crane 1-0 24 1888 AUS-ch playoff C49 Four Knights 8. Max Weiss vs Chigorin ½-½ 27 1889 USA-06.Congress New York plof-1pl C49 Four Knights 9. J W Baird vs Gossip ½-½ 21 1889 USA-06.Congress New York (32-1) C49 Four Knights 10. Tarrasch vs Schiffers   ½-½ 50 1889 Breslau C49 Four Knights 11. Von Bardeleben vs Gunsberg   ½-½ 20 1889 Breslau C49 Four Knights 12. Gossip vs Chigorin 0-1 46 1889 USA-06.Congress New York C49 Four Knights 13. Burn vs M Judd   1-0 96 1889 USA-06.Congress New York C49 Four Knights 14. J W Baird vs Burn   0-1 34 1889 USA-06.Congress New York C49 Four Knights 15. Burn vs Burille ½-½ 53 1889 USA-06.Congress New York (32-1) C49 Four Knights 16. Paulsen vs Tarrasch 0-1 33 1889 Casual game C49 Four Knights 17. J Schwarz vs G Marco 0-1 44 1890 Kolisch Memorial C49 Four Knights 18. J Schwarz vs J Bauer   0-1 55 1890 Kolisch Memorial C49 Four Knights 19. Csank vs G Marco   ½-½ 67 1890 Kolisch Memorial C49 Four Knights 20. Lasker vs M Morgan 0-1 27 1892 Philadelphia sim C49 Four Knights 21. Gossip vs Taubenhaus   0-1 40 1893 New York C49 Four Knights 22. G Marco vs Janowski 0-1 47 1894 Leipzig C49 Four Knights 23. Schlechter vs Pillsbury ½-½ 33 1896 Budapest C49 Four Knights 24. Schlechter vs H Caro   ½-½ 23 1897 Berlin C49 Four Knights 25. Schlechter vs Janowski   ½-½ 67 1897 Berlin C49 Four Knights  page 1 of 8; games 1-25 of 186

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