A46: 1 d4 Nf6 2 Nf3 e6: Torre, London and Colle Systems

1. d4 Nf6 2. Nf3 e6 3. Bg5 Be7 4. Nbd2 d5 5. e3 Nbd7 6. Bd3 O-O 7. c3 Secures b4 7... b6 8. Qc2 h6 9. h4 9. Bh4 a5+/= 9... Bb7 9... hxg5? looks very interesting, but 10. hxg5 Re8 11. g6 fxg6 12. Bxg6+- 10. O-O-O c5 10... hxg5? is not as innocent as it looks 11. hxg5 Re8 12. Rh3+- 11. Bxf6 Bxf6 11... Nxf6 12. Ne5= 12. g4 e5 12... Be7 13. g5 h5 14. Nf1= 13. Nxe5 >= 13. dxe5!? Bxe5 14. g5+/- 13... Bxe5 14. dxe5 Nxe5 15. f3 Consolidates g4 15... Nxd3+ 16. Qxd3 Qf6 17. g5 This push gains space 17... Qg6 18. Qxg6 fxg6 Black has new doubled pawns: g6+g7 19. Rhg1 h5 20. f4 White has a new backward pawn: e3 20. Rge1 Rad8= 20... Rad8 21. Rgf1 Rfe8 Black threatens to win material: Re8xe3 22. Rde1 Re7 22... Ba6 23. Rg1=/+ 23. Nf3= Rde8 23... Re4 24. Ne5= 24. Ne5+/= White threatens to win material: Ne5xg6. Praise the knight! 24... Kh7 25. Rf2 Rd8 26. Rd2 Rde8 27. Red1 27. c4 dxc4 28. Nxc4 Be4+/- 27... c4 Black gets more space 27... b5 28. b3+/- 28. b3 cxb3 29. axb3 Rc8 30. Kb2 Rec7 31. Rc1 Re7 31... a5 32. Rd3+/- 32. Re1 Rec7 33. Rc1 >= 33. c4 dxc4 34. Nxc4+/- 1/2-1/2 [Fritz 9 (5s)]