1. e2e4  1... c7c6  2. d2d4  2... d7d5  3. e4d5  3... c6d5  4. f1d3  4... b8c6  5. c2c3  5... e7e6 This is historically not a very popular move. Usually, Black tries to develop the c8-bishop before playing e6. This move, however, was played by Carlsen and Caruana, among others. 6. c1f4  6... f8d6  7. f4d6  7... d8d6  8. g1f3 