D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4

1. d4 d5 2. Nf3 Nd7 3. e3 c6 Covers b5 4. Bd3 Qc7 5. Nbd2 g6 Controls f5 6. O-O Bg7 Black is behind in development. 7. e4 dxe4 8. Nxe4 Ngf6 9. Qe2 Black has a cramped position. Black's piece can't move: c8 9... O-O 10. c3 e5 10... Nd5 11. c4 Nb4 12. Bb1+/= 11. dxe5 11. Nxf6+!? Bxf6 12. Bh6+/- 11... Nxe5 12. Bf4 White threatens to win material: Bf4xe5 12... Nh5 13. Bg3 >= 13. Bxe5!? and White can hope to live 13... Bxe5 14. Nxe5 Qxe5 15. Rfe1+/= 13... Nxg3=/+ 14. fxg3 Nxd3 15. Qxd3 Black has the pair of bishops 15... Qb6+ Black forks: g1+b2 16. Kh1 Qxb2 17. Nfg5 >= 17. Nd4!?=/+ might be a viable alternative 17... Bf5-+ 18. Rab1 18. Rfb1 Rad8 19. Qf3 Qc2-+ 18... Qxa2 19. Rxb7 Bc8?? Black threatens to win material: Bc8xb7. allows the opponent back into the game >= 19... Rad8 and Black gets the upper hand 20. Qe3 Qa6-+ 20. Rbxf7= Ba6?? ruins a very nice position >= 20... Rxf7 was much better 21. Qd8+ Rf8 22. Rxf8+ Bxf8 23. Nf6+ Kg7 24. Ne8+ Kh8 25. Qd4+ Kg8 26. Nf6+ Kg7 27. Nd7+ Kg8 28. Nf6+ Kh8 29. Ne8+ Kg8 30. Nf6+= 21. Rxg7+! the final blow 21... Kxg7 Decoy to g7 21... Kh8 cannot change what is in store for ? 22. Rxh7+ Kg8 23. Rxf8+ Rxf8 24. Nf6+ Rxf6 25. Qd8+ Rf8 26. Rh8+ Kxh8 27. Qxf8+ Qg8 28. Nf7+ Kh7 29. Qh6# 22. Qd7+ Rf7 22... Qf7 doesn't change the outcome of the game 23. Rxf7+ Kg8 24. Rxf8+ Rxf8 25. Qxh7# 23. Rxf7+ 1-0 [Fritz 9 (5s)]