Games of 7 20 06

I played this game against a Chessmaster 1646 player this morning. I used the Danish gambit again and it worked out well. He played what seemed to be a common answer that stuffs the intention of white and gives black a fight for the center. His knight couldn't handle the pressure on move 21 so the computer decided to sacrifice the pawn instead of jumping it a couple times to safety. This game has some significance since I played a solid endgame and black answered the gambit aggressively.

1. e4 e5
2. d4 exd4
3. c3 d5! (Black challenges the gambit and fights for the center)
4. cxd4 Bb4+
5. Bd2 Bxd2+
6. Nxd2 dxe4
7. Nxe4 Nf6
8. Bd3 Nxe4
9. Bxe4 Qe7
10. Qe2 Qb4+
11. Qd2 Na6? (Why black didnt exchange queens and blow my castling ability I dont know)
12. Qxb4 Nxb4
13. Nf3 f5
14. Bb1 Be6
15. O-O O-O
16. a3 Nc6
17. Rd1 Bb3
18. Rd3 Bd5
19. Ba2 Bxa2
20. Rxa2 Rf6
21. b4 Nxb4? (Black sacrifices his knight for a pawn instead of jumping it to d8 or c7)
22. axb4 Rc6
23. h3 Rc1+
24. Kh2 f4
25. Ne5 a6
26. d5 Re8
27. Nf3 Rd8
28. Rad2 Rb1
29. Rd4 h6
30. Rxf4 b5
31. Rfd4 Rc1
32. d6 c5
33. bxc5 Rxc5
34. d7 Kh7
35. Re2 Rc4
36. Rxc4 bxc4
37. Ne5 a5
38. Rc2 a4
39. Rxc4 a3
40. Ra4 a2
41. Rxa2 g5
42. Rc2 Kg7
43. Rc8 Rxd7
44. Nxd7 h5
45. Rc6 Kf7
46. g4 hxg4
47. hxg4 Ke8
48. Ne5 Ke7
49. Kg3 Kf8
50. f4 gxf4+
51. Kxf4 Ke8
52. Kf5 Ke7
53. Kg6 Ke8
54. Kf6 Kd8
55. Ke6 Ke8
56. Rc8 ++