[Event "GRONINGEN"] [Site "GRONINGEN"] [Round "0"] [White "Tartakower"] [Black "Botvinnik"] [Result "0-1"] [ECO "C01"] [Opening "French: Exchange, 4.Nf3 Bd6"] {Breaking the symmetry by advancing the c-pawn} 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Bd6 5. c4 Nf6 (5... dxc4 { Isolating White's d-pawn but White's pieces could become active}) 6. c5 Be7 7. Bd3 b6 8. cxb6 (8. b4 a5 $1) 8... axb6 9. O-O O-O {In itself the advance of the c-pawn constitutes a weakening of White's pawn structure. White's d-pawn is vulnerable, but Black's c-pawn is no less so} 10. Nc3 (10. Bg5 { More solid, now the pin on f3 is annoying}) 10... Bg4 11. h3 Bh5 12. g4 { An energetic weakening of the Kingside} (12. Be2 Ne4 $36 (12... c6 13. -- Bd6 14. -- Nbd7 15. -- Re8)) 12... Bg6 13. Ne5 Bxd3 14. Qxd3 c6 15. Bg5 $2 Nxg4 $1 16. Nxc6 (16. Bxe7 Nxe5 17. Bxd8 Nxd3 18. Bxb6 Nxb2) (16. hxg4 Bxg5 17. Kg2) 16... Nxc6 17. Bxe7 Nxe7 18. hxg4 f5 19. Rae1 {A temporary sacrifice by Which White saves himself from being immediately overrun on theKingside} 19... fxg4 20. Re5 Rf3 21. Qb5 Ng6 $1 (21... -- 22. Rxe7 Qxe7 23. Qxd5+) 22. Rxd5 (22. Qxd5+ Qxd5 23. Rxd5 Nf4 24. Rb5 Rf8 25. Rxb6 g3 26. fxg3 Nh3+) 22... Qf6 23. Rg5 Rf8 24. Ne4 Qf4 25. Qd5+ Kh8 26. Rh5 Rh3 (26... h6 27. Qe6 Re3 $1 28. Qxg6 Rxe4 29. Rh4 Rxd4 30. Qxb6 Rd2) (26... g3 27. Ng5 gxf2+ 28. Kh1 $14) 27. Rxh3 gxh3 28. Ng3 Nh4 29. Qe4 Nf3+ 30. Kh1 Qxe4 31. Nxe4 Rf4 32. Rc1 h6 33. Rc3 g5 34. d5 g4 35. Re3 Rf5 36. Nc3 Rf6 37. Re6 Kg7 38. Rxf6 Kxf6 39. d6 Ke6 40. Nd5 Kxd6 41. Nxb6 h5 42. Nc4+ Kd5 43. Ne3+ Ke4 44. a4 Kd3 45. Nd5 Ke2 46. Nf4+ Kxf2 47. Nxh3+ Kf1 48. Nf4 g3 49. Ng2 Kf2 50. a5 h4 51. Nf4 Kf1 52. Ng2 h3 53. Ne3+ Kf2 54. Ng4+ Ke2 0-1