Index of DDG Variations

1.e4 e6 2.d4 d5 3.c4

Accepted main

3... dxe4 4.Nc3

  A) 4... Nf6 5.f3 Bb4 (Kmoch Variation)
                       6.a3
                       6.Qa4+
                       6.Qb3
                       6. Various

              5... c5 (Keres Variation)
              5... exf3 (Exchange Variation)
              5... Nc6
              5... e3
              5... Various

              5.Bg5
              5.a3 (Duhm Variation)
              5.Nge2
              5.Be3 (Alapin Variation)
              5. Various

  B) 4... Bb4 5.Qa4+
              5.Qb3
              5.Be3
              5.Ne2
              5.f3
              5.Bd2
              5. Various

  C) 4... f5  5.f3
              5.Be2
              5.Bf4
              5. Various

Accepted miscellaneous

3... dxe4 4.Nc3 Nc6
          4...  e5 (Pietilš Variation)
          4...  c5 (QGD, Tarrasch Defence, Marshall Gambit)
          4...  Be7 (QGD, Charousek Variation)
          4...  Various

          4.Be3 Nf6 5.Nd2 (Alapin-Diemer-Duhm)

          4.f3 f5

          4. Various

Declined

3... c5 (QGD, Tarrasch Defence)
3... c6 (Semi-Slav, Marshall Gambit)
3... Nf6
3... dxc4 (Queen's Gambit Accepted)

Jyrki Heikkinen