1. d2d4  1... d7d5  2. c2c4  2... e7e6  3. g1f3  3... a7a6 This cunning little move threatens to capture on c4 followed by the protection of the pawn with ...b7-b5. White usually captures on d5, which in some ways is desirable for Black since the light-squared bishop can be developed. The big question is whether it's worth \"wasting\" a tempo with ...a6 for this, although even this move is useful in a number of situations. 4. c4d5  4... e6d5  5. b1c3  5... h7h6 [%c_effect h6;square;h6;type;Interesting;persistent;true] Another subtle pawn move with the idea of preventing the development of White's bishops. Super-GMs are above the common laws of opening play. Carlsen has played this system a few times already. 6. c1f4  6... g8f6  7. e2e3  7... f8d6  8. f4e5 [%c_effect e5;square;e5;type;Interesting;persistent;true] An interesting idea: instead of exchanging bishops, White places it on e5 and waits for Black to capture it in order to place the knight or a pawn on that square. 8... c7c6  9. f1d3  9... e8g8  10. h2h3  10... f8e8  11. e1g1  11... d6e5  12. f3e5 The most natural and conventional capture, but I should mention that taking with the pawn has interesting practical value. It has never been tried before and sharpens the game. Black needs to defend accurately. 12... c6c5  13. a2a4 [%c_effect a4;square;a4;type;Interesting;persistent;true] A good prophylactic move to prevent the move ...b7-b5. 13... c5d4  14. e3d4  14... b8c6 Black has many candidate moves and enjoys near-equality with them.