1. g1f3  1... d7d5  2. e2e3  2... g8f6  3. c2c4  3... e7e6  4. b1c3  4... f8d6  5. d2d4  5... b7b6  6. c4d5 I don't like this move very much, as Black's development is easier after this exchange. 6... e6d5  7. f1d3 