An opening system that leads to positional play and a technical position that appeals to both players. By the way, Carlsen and Artemiev have a very similar style of play.
1. g1f3  1... g8f6  2. g2g3  2... g7g6  3. f1g2  3... f8g7  4. e1g1  4... e8g8  5. c2c4  5... c7c6  6. b2b3  6... f6e4  7. d2d4  7... d7d5 