1. e2e4  1... c7c5  2. g1f3  2... e7e6  3. b2b3 A nice side-line to avoid the heavy theory. 3... b7b6 This is considered to be one of the most plausible replies for Black. The reason: White does not seem to have a convenient way to defend his e4-pawn after the coming Bc8-b7 development. 4. c1b2  4... c8b7  5. b1c3 More or less forced, but now the knight blocks his own bishop. 5... g8f6  6. e4e5  6... f6e4  7. c3e4  7... b7e4 