C50 - C59

------------------------------------ C50 ------------------------------------

C50 King's pawn game

1.e2e4 e7e5 g1f3 b8c6 f1c4

   C50 Blackburne shilling gambit

   1.e2e4 e7e5 g1f3 b8c6 f1c4 c6d4 f3e5 d8g5 e5f7 g5g2 h1f1 g2e4 c4e2 d4f3

   C50 Rousseau gambit

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f7f5

   C50 Hungarian defence

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8e7

      C50 Hungarian defence: Tartakower variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8e7 d2d4 e5d4 c2c3 g8f6 e4e5 f6e4

   C50 Giuoco Piano

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5

      C50 Giuoco Piano: four knights variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b1c3 g8f6

      C50 Giuoco Piano: Jerome gambit

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c4f7

      C50 Giuoco Pianissimo

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3

         C50 Giuoco Pianissimo: Dubois variation

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 f7f5 f3g5 f5f4

         C50 Giuoco Pianissimo

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 g8f6

            C50 Giuoco Pianissimo: Italian four knights variation

            1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 g8f6 b1c3

               C50 Giuoco Pianissimo: Canal variation

               1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 d2d3 g8f6 b1c3 d7d6 c1g5

------------------------------------ C51 ------------------------------------

C51 Evans gambit declined

1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4

   C51 Evans gambit declined, Lange variation

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 g8h6

      C51 Evans gambit declined, Pavlov variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 g8h6 d2d4 d7d6

        c1h6 d6e5 h6g7 h8g8 c4f7 e8f7 g7e5 d8g5 b1d2

   C51 Evans gambit declined, Hirschbach variation

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 d8g5

      C51 Evans gambit declined, Vasquez variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 d8g5 c4f7 e8e7

        d1h5

      C51 Evans gambit declined, Hicken variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 b4b5 c6a5 f3e5 d8g5 d1f3 g5e5

        f3f7 e8d8 c1b2

   C51 Evans gambit declined, 5.a4

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 a2a4

      C51 Evans gambit declined, Showalter variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 a2a4 a7a6 b1c3

   C51 Evans gambit declined, Cordel variation

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b6 c1b2

   C51 Evans counter-gambit

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 d7d5

   C51 Evans gambit

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4

      C51 Evans gambit: normal variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4 e1g1 d7d6

        c3d4 c5b6

         C51 Evans gambit: Ulvestad variation

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4

           e1g1 d7d6 c3d4 c5b6 d4d5 c6a5 c1b2

            C51 Evans gambit: Paulsen variation

            1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4

              e1g1 d7d6 c3d4 c5b6 d4d5 c6a5 c1b2 g8e7

         C51 Evans gambit: Morphy attack

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4

           e1g1 d7d6 c3d4 c5b6 b1c3

            C51 Evans gambit: Goering attack

            1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4

              e1g1 d7d6 c3d4 c5b6 b1c3 c6a5 c1g5

               C51 Evans gambit: Steinitz variation

               1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4

                 e1g1 d7d6 c3d4 c5b6 b1c3 c6a5 c1g5 f7f6 g5e3

            C51 Evans gambit

            1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4

              e1g1 d7d6 c3d4 c5b6 b1c3 c8g4

               C51 Evans gambit: Fraser attack

               1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4

                 e1g1 d7d6 c3d4 c5b6 b1c3 c8g4 d1a4

                  C51 Evans gambit: Fraser-Mortimer attack

                  1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4c5 d2d4 e5d4

                    e1g1 d7d6 c3d4 c5b6 b1c3 c8g4 d1a4 g4d7 a4b3 c6a5 c4f7 e8f8

                    b3c2

      C51 Evans gambit: Stone-Ware variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4d6

      C51 Evans gambit: Mayet defence

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4f8

      C51 Evans gambit: 5...Be7

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4e7

         C51 Evans gambit: Cordel variation

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4e7 d2d4 c6a5

------------------------------------ C52 ------------------------------------

C52 Evans gambit

1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5

   C52 Evans gambit: compromised defence

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d4c3

      C52 Evans gambit: compromised defence, Paulsen variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d4c3

        d1b3 d8f6 e4e5 f6g6 b1c3 g8e7 c1a3

      C52 Evans gambit: compromised defence, Potter variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 e5d4 e1g1 d4c3

        d1b3 d8f6 e4e5 f6g6 b1c3 g8e7 f1d1

   C52 Evans gambit: Leonhardt variation

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 b7b5

   C52 Evans gambit

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 d7d6

      C52 Evans gambit: Tartakower attack

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 d7d6 d1b3

         C52 Evans gambit: Levenfish variation

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 d7d6

           d1b3 d8d7 d4e5 d6e5 e1g1 a5b6 c1a3 c6a5 f3e5

      C52 Evans gambit: Sokolsky variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 d2d4 d7d6 c1g5

   C52 Evans gambit

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1

      C52 Evans gambit: Richardson attack

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 g8f6 d2d4 e8g8

        f3e5

      C52 Evans gambit

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6

         C52 Evans gambit: Waller attack

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6

           d2d4 e5d4 d1b3

         C52 Evans gambit: Lasker defence

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6

           d2d4 a5b6

         C52 Evans gambit: Sanders-Alapin variation

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6

           d2d4 c8d7

         C52 Evans gambit: Alapin-Steinitz variation

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 b2b4 c5b4 c2c3 b4a5 e1g1 d7d6

           d2d4 c8g4

------------------------------------ C53 ------------------------------------

C53 Giuoco Piano

1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3

   C53 Giuoco Piano: LaBourdonnais variation

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d7d6 d2d4 e5d4 c3d4 c5b6

   C53 Giuoco Piano: close variation

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7

      C53 Giuoco Piano: centre-holding variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 d2d4 c5b6

         C53 Giuoco Piano: Tarrasch variation

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 d2d4 c5b6 e1g1 g8f6

           a2a4 a7a6 f1e1 d7d6 h2h3

         C53 Giuoco Piano: Mestel variation

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 d2d4 c5b6 c1g5

         C53 Giuoco Piano: Eisinger variation

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 d8e7 d2d4 c5b6 d4d5 c6b8 d5d6

   C53 Giuoco Piano

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6

      C53 Giuoco Piano: Bird's attack

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 b2b4

      C53 Giuoco Piano

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4

         C53 Giuoco Piano: Ghulam Kassim variation

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 e4e5 f6e4

           c4d5 e4f2 e1f2 d4c3 f2g3

         C53 Giuoco Piano

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 e4e5 d7d5

            C53 Giuoco Piano: Anderssen variation

            1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 e4e5 d7d5

              c4b5 f6e4 c3d4 c5b4

------------------------------------ C54 ------------------------------------

C54 Giuoco Piano

1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4

   C54 Giuoco Piano: Krause variation

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 c1d2 f6e4

     d2b4 c6b4 c4f7 e8f7 d1b3 d7d5 f3e5 f7f6 f2f3

   C54 Giuoco Piano: Cracow variation

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 e1f1

   C54 Giuoco Piano: Greco's attack

   1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3

      C54 Giuoco Piano: Greco variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4

        e1g1 e4c3

         C54 Giuoco Piano: Bernstein variation

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4

           b1c3 f6e4 e1g1 e4c3 b2c3 b4c3 d1b3 d7d5

         C54 Giuoco Piano: Aitken variation

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4

           b1c3 f6e4 e1g1 e4c3 b2c3 b4c3 c1a3

      C54 Giuoco Piano

      1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4 b1c3 f6e4

        e1g1 b4c3

         C54 Giuoco Piano: Steinitz variation

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4

           b1c3 f6e4 e1g1 b4c3 b2c3 d7d5 c1a3

         C54 Giuoco Piano: Moeller (Therkatz) attack

         1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4

           b1c3 f6e4 e1g1 b4c3 d4d5

            C54 Giuoco Piano: Therkatz-Herzog variation

            1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4

              b1c3 f6e4 e1g1 b4c3 d4d5 c3f6 f1e1 c6e7 e1e4 d7d6 c1g5 f6g5

              f3g5 e8g8 g5h7

            C54 Giuoco Piano: Moeller, bayonet attack

            1.e2e4 e7e5 g1f3 b8c6 f1c4 f8c5 c2c3 g8f6 d2d4 e5d4 c3d4 c5b4

              b1c3 f6e4 e1g1 b4c3 d4d5 c3f6 f1e1 c6e7 e1e4 d7d6 g2g4

------------------------------------ C55 ------------------------------------

C55 Two knights defence

1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6

   C55 Giuoco piano: Rosentreter variation

   1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 e1g1 f8c5 d2d4 c5d4 f3d4 c6d4 c1g5 h7h6

     g5h4 g7g5 f2f4

   C55 Giuoco piano

   1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 e1g1 f8c5 d2d4 c5d4 f3d4 c6d4 c1g5 d7d6

      C55 Giuoco piano: Holzhausen attack

      1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 e1g1 f8c5 d2d4 c5d4 f3d4 c6d4 c1g5 d7d6

        f2f4 d8e7 f4e5 d6e5 b1c3

   C55 Two knights defence (Modern bishop's opening)

   1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d3

   C55 Two knights defence

   1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4

      C55 Two knights defence, Keidanz variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e4e5 d7d5 c4b5 f6e4 f3d4 f8c5

        d4c6 c5f2 e1f1 d8h4

      C55 Two knights defence, Perreux variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 f3g5

      C55 Two knights defence

      1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1

         C55 two knights: Max Lange attack

         1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5

            C55 two knights: Max Lange attack, Berger variation

            1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 d7d5

              e5f6 d5c4 f1e1 c8e6 f3g5 d8d5 b1c3 d5f5 g2g4 f5g6 c3e4 c5b6

              f2f4 e8c8

            C55 two knights: Max Lange attack, Marshall variation

            1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 d7d5

              e5f6 d5c4 f1e1 c8e6 f3g5 d8d5 b1c3 d5f5 c3e4

               C55 two knights: Max Lange attack, Rubinstein variation

               1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 d7d5

                 e5f6 d5c4 f1e1 c8e6 f3g5 d8d5 b1c3 d5f5 c3e4 c5f8

            C55 two knights: Max Lange attack, Loman defence

            1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 d7d5

              e5f6 d5c4 f1e1 c8e6 f3g5 g7g6

            C55 two knights: Max Lange attack, Schlechter variation

            1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 d7d5

              e5f6 d5c4 f1e1 c8e6 f6g7

            C55 two knights: Max Lange attack, Steinitz variation

            1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5 f6g4

               C55 two knights: Max Lange attack, Krause variation

               1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f8c5 e4e5

                 f6g4 c2c3

------------------------------------ C56 ------------------------------------

C56 Two knights defence

1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f6e4

   C56 two knights defence: Yurdansky attack

   1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f6e4 f1e1 d7d5 c4d5 d8d5

     b1c3 d5a5 c3e4 c8e6 c1g5 h7h6 g5h4 g7g5 e4f6 e8e7 b2b4

   C56 two knights defence: Canal variation

   1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 d2d4 e5d4 e1g1 f6e4 f1e1 d7d5 b1c3

------------------------------------ C57 ------------------------------------

C57 Two knights defence

1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5

   C57 two knights defence: Wilkes Barre (Traxler) variation

   1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 f8c5

   C57 two knights defence: Ulvestad variation

   1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 b7b5

   C57 two knights defence: Fritz variation

   1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6d4

      C57 two knights defence: Fritz, Gruber variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6d4 c2c3 b7b5 c4f1 f6d5

        g5e4

   C57 two knights defence: Lolli attack

   1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 d2d4

      C57 two knights defence: Pincus variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 d2d4 f8b4

   C57 two knights defence: Fegatello attack

   1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 g5f7

      C57 two knights defence: Fegatello attack, Leonhardt variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 g5f7 e8f7 d1f3 f7e6

        b1c3 c6b4 f3e4 c7c6 a2a3 b4a6 d2d4 a6c7

      C57 two knights defence: Fegatello attack, Polerio defence

      1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 f6d5 g5f7 e8f7 d1f3 f7e6

        b1c3 c6e7

------------------------------------ C58 ------------------------------------

C58 two knights defence

1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5

   C58 two knights defence: Kieseritsky variation

   1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 d2d3

      C58 two knights defence: Yankovich variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 d2d3 h7h6 g5f3 e5e4

        d1e2 a5c4 d3c4 f8c5 f3d2

      C58 two knights defence: Maroczy variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 d2d3 h7h6 g5f3 e5e4

        d1e2 a5c4 d3c4 f8e7

   C58 Two knights defence

   1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5

      C58 two knights defence: Bogolyubov variation

      1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6

        d1f3

         C58 two knights defence: Paoli variation

         1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6

           d5c6 b7c6 d1f3 d8c7 b5d3

         C58 two knights defence: Colman variation

         1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6

           d5c6 b7c6 d1f3 a8b8

         C58 two knights defence: Blackburne variation

         1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6

           d5c6 b7c6 d1f3 c6b5

      C58 Two knights defence

      1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6

        b5e2

------------------------------------ C59 ------------------------------------

C59 Two knights defence

1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6

  b5e2 h7h6

   C59 two knights defence: Knorre variation

   1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6

     b5e2 h7h6 g5f3 e5e4 f3e5 f8d6 d2d4 d8c7 c1d2

   C59 two knights defence: Goering variation

   1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6

     b5e2 h7h6 g5f3 e5e4 f3e5 d8c7

   C59 two knights defence: Steinitz variation

   1.e2e4 e7e5 g1f3 b8c6 f1c4 g8f6 f3g5 d7d5 e4d5 c6a5 c4b5 c7c6 d5c6 b7c6

     b5e2 h7h6 g5h3