1. d2d4  1... d7d5  2. c2c4  2... e7e6  3. b1c3  3... c7c6  4. c4d5  4... e6d5  5. d1c2 This move order prevents  the active Bc8-f5 move. 5... f8d6 But Black can pay with the same coin  and prevent the alternative activation of the white bishop. 6. g1f3  6... g8e7  7. c1g5  7... f7f6  8. g5d2  8... b8a6 