1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. c1f4 When we start playing chess, we are taught that we should normally develop knights before bishops. It's no surprise, then, that this move isn't popular. Normally it would be possible to transpose to well-known lines, but in a curious way the game quickly takes unique contours. 3... d7d5  4. c4d5 Another rare move. 4.e3, 4.Nf3 or 4.Nc3 would leave possible transpositions in the air. 4... f6d5 Black usually captures with the pawn in such structures, but this is a different case, as he can win a tempo by attacking the bishop. This opening looks strange, but there is a modern theory being developed here, and some high-level games have been played recently. 5. f4g3  5... c7c5  6. e2e4  6... d5f6  7. b1d2 This pawn sacrifice is the only way to fight for the initiative. 7... c5d4  8. e4e5  8... f6d5  9. g1f3  9... b8c6  10. a2a3 A useful move to avoid the knight jumps to b4 and thus be able to develop the bishop on d3. Playing with the d4-pawn down is thematic and not too scary for White. The plan is to finish development and set up a battery with Bd3-Qe2-e4, and it's quite possible that the pawn will be captured sooner or later. 10... d5e7 A new move. The idea is to get the knight to f5 and get a firmer defense for the d4-pawn. The drawback is that Black moves the knight too many times. 11. f1d3  11... e7f5  12. g3f4  12... f8e7  13. g2g4  13... f5h4  14. f3h4  14... e7h4  15. d2f3  15... h4e7  16. d1e2  16... a7a5  17. h2h4  17... h7h5 This move is the reason for Black's problems, as now White's attack on the kingside is very strong. 17...a4, 17...Bd7 or 17...Qb6 are better alternatives.