[Event "Beverwijk"] [Site "?"] [Round "0"] [White "Donner"] [Black "Kieninger"] [Result "1-0"] [ECO "A81"] [Opening "Dutch: 2.g3 Nf6 3.Bg2 e6"] {Black exchanges dark-squared Bishops before proceedig with the attack on the c-pawn} 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nf3 Be7 5. O-O O-O 6. b3 c6 7. c4 d5 8. Ba3 Bxa3 9. Nxa3 Qe7 10. Qc1 Nbd7 {The Exchange of White's bad Bishop for Black's good King Bishop is usually a good policy for White. In particular, the fact that the King Bishop usually plays an important part in Black's Kingside attack means that White will now have more time for developing his Queenside operations} 11. Qb2 { An important move, directed against the possibility of ... Pe5 by Black} 11... Ne4 12. e3 Nd6 13. Ne5 (13. c5 Nf7 14. b4 e5) 13... Nxe5 14. dxe5 Nf7 15. f4 Bd7 16. Rac1 Rfc8 17. Rf2 Be8 18. Rfc2 (18. c5 b6 $1 19. b4 a5 $1) 18... dxc4 ( 18... -- 19. cxd5 exd5 20. Bxd5) 19. Nxc4 Rd8 20. Bf3 Rd7 21. Rd2 Rxd2 22. Qxd2 Rd8 23. Qc2 Rd7 (23... c5 {to set the Queenside majority into motion} 24. Nd6 b6 25. Nxe8 Qxe8 26. e4 g6 27. exf5 gxf5 {White has only a slight pull}) 24. Rd1 Qd8 25. Rxd7 Qxd7 26. b4 $1 {At last comes this advance, which to all intents and purposes de-molishes the Stonewall} 26... b6 27. Nd2 Nd8 (27... c5 28. bxc5 bxc5 29. Nb3) 28. Nb3 Qe7 29. Qc4 Kf8 30. Kf2 Bd7 31. Nd4 {With Black' s c-pawn under vigorous pressure White now arranges his pieces as effectively as possible for a central breakthrough with Pe4 and eventually Pg4} 31... c5 $2 {This method of raising the siege results in the loss of a pawn} 32. bxc5 Qxc5 33. Qxc5+ bxc5 34. Nb3 c4 35. Na5 c3 36. Ke2 Bb5+ 37. Kd1 Bd3 (37... Ba4+ 38. Kc1 Ke7 39. Bd1 Bb5 40. Kc2 Ba4+ 41. Nb3) 38. Kc1 Ke7 39. Nb3 g5 40. a3 g4 41. Bg2 Nf7 42. Nc5 Be2 43. Kc2 h5 44. Kxc3 Nh8 45. Bb7 Ng6 46. Bc8 Nf8 47. Kb4 Bf3 48. Ka5 Bd5 49. Ka6 Ng6 50. Kxa7 h4 51. Bb7 h3 52. a4 Nh4 53. Bxd5 exd5 54. a5 Nf3 55. a6 Nxh2 56. Kb6 Nf1 57. a7 h2 58. a8=Q h1=Q 59. Qb7+ Kf8 60. Ne6+ Ke8 61. Qc6+ Ke7 62. Qd6+ Kf7 63. Qd7+ Kg6 64. Qg7+ Kh5 65. Qh7# 1-0