D47: Semi-Slav: Meran System

1. d4 d5 2. c4 2. Bf4 Nf6= 2... c6 2... e6 3. Nf3= 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 Black threatens to win material: b5xc4 8. Be2 Bb7 9. O-O Be7 10. e4 b4 11. e5 White wins space 11... bxc3 12. exf6 Bxf6 13. bxc3 c5 14. dxc5 14. Rb1 Bd5 15. c4 Be4+/= 14... Nxc5= Black king safety dropped. 15. Bb5+ Kf8 16. Qxd8+ Rxd8 17. Ba3 White pins: Ba3xc5 17... Rc8 18. Nd4 Be7 19. Rfd1 19. Rab1 Bd5= 19... a6 19... Ne4!? 20. Bb4 Bxb4 21. cxb4 Ke7=/+ 20. Bf1= Na4 Black threatens to win material: Na4xc3 21. Rab1 White threatens to win material: Rb1xb7 21... Be4 Black threatens to win material: Be4xb1 22. Rb3 Bxa3 22... Nxc3? would be great except for 23. Rc1 Bxa3 24. Rxa3+- 23. Rxa3 Nc5 23... Nxc3? fails because of 24. Rc1 Ke7 25. Rcxc3 Rxc3 26. Rxc3+- 24. Nb3 Attacks the isolani on a6 24... Ke7 Black king safety dropped 25. Rd4 Bg6 26. c4 26. Nxc5 Rxc5 27. Bxa6 Ra8+/= 26... Rc6 26... >= Nxb3!? should be examined more closely 27. axb3 Rhd8 28. Rxd8 Rxd8= 27. Nxc5+/- Rxc5 28. Rxa6 Rb8 29. Rd1 Rb2 30. Ra7+ Kf6 31. Ra1 Rf5 32. f3 Re5 33. Ra3 Rc2 33... Bc2!?+/- 34. Rb3 Ra5 35. a4 Ke7 36. Rb5 Ra7 37. a5 Kd6 38. a6 Kc7 38... Kc6 39. g3+/- 39. c5 Rc3 40. Raa5 Rc1 40... Bd3 41. Bxd3 Rxd3 42. Rb2+/- 41. Rb3+- Kc6 42. Rb6+ Kc7 43. Kf2 Rc2+ 44. Ke3 Rxc5?? shortens the misery for Black. >= 44... e5+- 45. Rb7+! A double attack 45. Rb7+ Rxb7 46. Rxc5+ Kb6 47. axb7 Kxb7 48. Bd3+- 45. Rxc5+?! is a useless try 45... Kxb6 46. Rc8 Re7+/= 1-0 [Fritz 9 (5s)]