1. d2d4  1... g8f6  2. c1g5 The Trompowsky. A few years back it was in the spotlight, with all the top GMs rushing to invent something new in it. Then came the London... 2... f6e4  3. g5f4  3... c7c5  4. f2f3  4... d8a5  5. c2c3  5... e4f6  6. d4d5  6... a5b6  7. f4c1 Yes, this is the main line. And no, White is not setting up the pieces for a new game. 7... e7e6  8. e2e4  8... e6d5  9. e4d5  9... f8d6  10. b1a3 Modern strategy in action. On move 10 White is finally developing his knight...on the rim. But, there is a serious reason for White to be capable of playing this way: his super center. Still, Tarrasch might have had hard time analyzing the modern games. 10... e8g8  11. g1e2  11... f8e8 Black's play, on the other hand, is pretty straightforward. [#] 12. g2g4 An active way to develop the kingside. 12... d6f8  13. a3c4 This is needed, or else White risks to see the game opened. 13... b6a6 