A80: Dutch Defence: Unusual White second moves

1. d4 e6 1... Nf6 2. Nf3= 2. Nf3 2. e4 d5 3. e5 Ne7+/= 2... f5 3. Nc3 Nf6 4. g3 d5 5. Bg2 Nbd7 6. O-O Bd6 7. Nb5 Ne4 8. c4 c6 8... dxc4!? 9. Qa4 O-O 10. Qxc4 Nb6+/= 9. Nxd6++/- Nxd6 10. b3 Nf6 10... dxc4 11. bxc4 Nxc4 12. Qb3+/- 11. Ne5 Qa5 12. Bf4 Nf7 13. Nxf7 Kxf7 14. f3 14. h3 Rd8+- 14... Bd7 14... c5!?+/- 15. e4+- Rhe8 16. Be5 16. e5!? Ng8+- 16... Kg8+/- 17. Qe2 Rf8 18. Bd6 White plans c5 18... Rf7 19. e5 Ne8 20. c5 20. Qe1 Qa6 21. Bb4 f4+/- 20... b6 20... f4 21. Rac1+/= 21. a3 21. f4!?+/- 21... Nxd6 22. cxd6 White has a new protected passed pawn: d6 22... Qc3 23. Qd1 Rc8 23... f4!?= might be a viable alternative 24. f4+/= c5 Black threatens to win material: c5xd4 25. Rc1 White threatens to win material: Rc1xc3 25... Qa5 Black threatens to win material: Qa5xa3 26. b4 White threatens to win material: b4xa5 26. dxc5!? bxc5 27. Bxd5 exd5 28. Qxd5+/= 26... Qxa3= 27. bxc5 bxc5 Black has a new passed pawn: a7. 28. Kh1 Bb5 Black threatens to win material: Bb5xf1 29. Rf3 Qa6 30. Ra1 White threatens to win material: Ra1xa6 30... Qc6 31. g4 >= 31. Rc3 is the best option White has 31... Qb6 32. dxc5 Rxc5 33. Rxc5 Qxc5 34. Rc1+/= 31... fxg4-/+ 32. Rc3 Rxf4 33. Rxc5 Rxd4 34. Qxd4 Qxc5 35. Qxg4 Qc1+?? letting the wind out of his own sails >= 35... Bd7 36. Qg5 Rf8-/+ 36. Rxc1+- Rxc1+ 37. Bf1 Rxf1+ 38. Kg2 Rf5 39. Qb4 a6 40. Qc5 Rxe5 41. Qc8+ Kf7 42. Qc7+ Kg6 43. d7 Rg5+ 44. Kf3 Bxd7 45. Qxd7 Rf5+ 46. Kg3 Re5 47. Qa7 Re4 48. Qxa6 Kh5 49. Qc8 g6 50. Qf8 Re3+ 51. Kf4?? throws away a nice position >= 51. Kf2 and White could have gained the advantage 51... Re4 52. Qf3+ Kh6 53. h4+- 51... d4-+ 51... d4 52. Qe7 h6-+ 0-1 [Fritz 9 (5s)]