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

1. d4 Nf6 2. Nf3 e6 3. Bf4 c5 3... Be7 4. e3= 4. c3 Nc6 5. e3 b6 5... Qb6 6. Qb3 Qxb3 7. axb3+/= 6. Bd3 Be7 7. O-O O-O 8. Qc2 Bb7 9. Nbd2 d5 10. Bg5 h6 11. Bxf6 Bxf6 Black has the pair of bishops 12. Qd1 12. Rfe1 Rc8 13. Qa4 Qd6= 12... cxd4 12... e5 13. dxe5 Nxe5 14. Nxe5 Bxe5 15. f4= 13. exd4+/= Rc8 14. Re1 Qd6 15. Rc1 Rc7 16. Nf1 Rfc8 17. Qd2 a6 Controls b5 17... e5 18. dxe5 Nxe5 19. Nd4 Nxd3 20. Qxd3= 18. Ng3 18. Ne3 h5+/= 18... Na5 19. Bb1 19. Qe3 Nc4 20. Bxc4 Rxc4= 19... Nc4= Black threatens to win material: Nc4xd2 20. Qd3 20. Qe2 b5= 20... g6=/+ Prevents intrusion on f5+h5 21. Re2 21. Qe2 b5=/+ 21... Qf8 21... >= b5!?-/+ 22. h4= Qg7 23. h5 g5 24. Rce1 b5 25. Nf5 White threatens to win material: Nf5xg7 25... Qf8 26. Ne3 White has a mate threat 26... Qg7 27. Nf5 27. Nxc4 dxc4 28. Qe3 g4+/= 27... Qf8 27... Qh8 28. Ng3= 28. Ne3 28. Qc2 a5+/= (28... exf5? is a blank shot 29. Qxf5 Qd8 30. Re8+ Qxe8 31. Rxe8+ Rxe8 32. Qxf6+-) 28... Qg7 Twofold repetition 29. Ng4 Nd6? 29... >= Be7= and Black could well hope to play on 30. Qh7+!+- forging ahead of the opponent 30... Kf8 30... Qxh7 Deflection from f6 31. Nxf6+ A double attack 31. Qxh6 Qxh6 32. Nxh6 Bg7 32... >= Be7+- 33. Nxf7?? throwing away the advantage >= 33. Ng4+- White has a promising position 33... Nxf7= 34. Rxe6 g4? 34... >= b4 and Black can hope to survive 35. Bg6 bxc3 36. bxc3 Kg8+/= (36... Rxc3? 37. Nxg5 Bxd4 38. Nxf7+- (38. Bxf7 Rg3 39. Nf3 Bc3 40. fxg3 Bxe1 41. Rxe1 Kxf7+-) ) 35. Nh4+- Ng5 35... Kg8 36. Ng6 Bf8+- 36. Ng6+ Kf7 37. Re7+ Kg8?? the pressure is too much, Black crumbles 37... Kf6 38. R7e5 Bh6+- 38. Bf5 Ne4 38... Bc6 what else? 39. Bxg4 b4+- 39. Bxc8 Rxe7 39... Rxc8 praying for a miracle 40. Rxb7 Rd8 41. Ne7+ Kf8+- 40. Nxe7+ Kf7 41. Bxb7 1-0 [Fritz 9 (5s)]