Woohoo!

Rock on! After what is possibly the shoddiest endgame ever, I have managed to beat the Sigma Chess program with the following game:
1. e4 Nc6
2. d3 Nf6
3. Nc3 d5
4. d4 Bg4
5. f3 Nxe4
6. Nxe4 Bf5
7. Nc3 e5
8. dxe5 Qh4+
9. g3 Qh5
10. g4 Qh4+
11. Ke2 Bb4
12. gxf5 Qc4+
13. Qd3 Nd4+
14. Kd1 Nxf5
15. Qxc4 dxc4
16. Bxc4 Rd8+
17. Ke2 Nd4+
18. Kf2 Bxc3
19. bxc3 Nxc2
20.Rb1 Rd1
21. Kg2 Ne1+
22. Kf2 Nc2
23. Ke2 Re1+
24. Kd2 a5
25. Kxc2 O-O
26. e6 h6
27. exf7+ Rxf7
28. Rxb7 a4
29. Bxf7+ Kxf7
30. Rxc7+ Kf6
31. Bd2 Rf1
32. Rc6+ Kf5
33. Rc5+ Kf6
34. Rc6+ Kf5
35. c4 g5
36. c5 a3
37. Rd6 Ra1
38. Bc3 Rxa2+
39. Kd3 g4
40. fxg4+ Kxg4
41. Rg6+ Kh5
42. Rf6 Rg2
43. Rf5+ Kg6
44. Rf6+ Kh5
45. Nh3 a2
46. Bd4 Rd2+
47. Ke4 Re2+
48. Kd5 Re5+
49. Bxe5 Kg4
50. Ra1 Kxh3
51. Rxa2 Kg4
52. Ra3 Kg5
53. c6 Kh5
54. c7 Kg5
55. c8=Q Kh4
56. Qc4+ Kg5
57. Qf4+ Kh5
58. Rh3# 1-0

That probably could have ended 10 moves earlier...
Anyway, this may not seem like much, but given it's got the best of me for the past 80 tries (and I'm not that bad), this is a bit of a personal victory.

Next up: Deep Blue!

*cutscene: Ed getting his ass whipped in 10 moves* How'd that happen?

I should probably get back to working on my dissertation...

Addendum:
HOHOHO AND AGAIN!
1. e3 Nf6
2. d4 b6
3. b3 Bb7
4. Ba3 e6
5. b4 Be7
6. b5 Bxg2
7. Bxg2 Nc6
8. bxc6 Bxa3
9. Nxa3 d5
10. e4 dxe4
11. Nb5 O-O
12. f3 a6
13. Nc3 Qd6
14. Rb1 e3
15. Ne4 Nxe4
16. fxe4 Qxc6
17. d5 exd5
18. exd5 Qg6
19. Qf3 Qxc2
20. Rd1 Qxa2
21. Qe2 Qa5+
22. Kf1 Rfe8
23. Nf3 Qc3
24. Qd3 e2+
25. Kf2 Qc5+
26. Qd4 Qxd5
27. Qxd5 c6
28. Qxc6 Rac8
29. Qxb6 Rc1
30. Rxc1 h6
31. Qc6 Kh7
32. Qxe8 Kg6
33. Qe4+ f5
34. Qe6+ Kh5
35. Qxf5+ g5
36. Qf7+ Kg4
37. Qg6 e1=Q+
38. Nxe1 Kh4
39. Nf3+ Kg4
40. Qxh6 Kf5
41. Qxg5+ Ke4
42. Rcd1 a5
43. Qe5# 1-0

In just over 6 minutes this time, and using a transpositional opening (variant on Kasparov's 1994 opening move). Worked out okay, although once again, a bit of sloppiness here and there.