3. -Bf5 4. f3 e6 5. Nc3 Bb4 6. h4? exf3 7. Nxf3 Nf6 8. a3 Bxc3+ 9. bxc3 Ne4 10. g4!? Bxg4 11. Qd3 Bf5 12. Qe3 O-O 13. Rg1 Re8 14. Bb2 a6 15. O-O-O c5 16. Bd3 cxd4 17. cxd4 Nd6 18. Rxg7+!! Kxg7 19. Rg1+ Kf8 20. d5! Qc7 21. Bf6 Rd8 22. Qh6+ Ke8 23. Rg8+ Kd7 24. Ne5+ Kc8 25. Bxd8 Qxd8 26. Rxd8+ Kxd8 27. Qf8+ Kc7 28. c5 Nb5 29. Bxb5 exd5 30. Qxf7+ 1-0, Jyrki Heikkinen - Rebel Decade, 1995.
4. Nc3 Nc6 5. Be3 e6
And finally we have the Diemer-Duhm Gambit on the board. By playing Bf5 or Bg4, Black would lead the opening to quite unexplored paths.
6. f3 Bb4 7. fxe4
This tempo-loss was unnecessary: 7. a3 Bxc3+ 8. bxc3 is more natural.
7. -Nxe4 8. Qd3 Bxc3+ 9. bxc3 Qh4+ 10. g3 Nxg3 11. Nf3
11. hxg3! Qxh1 12. Be2 looks strong.
11. -Qh5 12. Rg1 Nxf1 13. Qxf1 Qa5 14. Rxg7 Qxc3+ 15. Kf2 Qc2+ 16. Kg1 Qe4 17. Re1 Bd7
18. Rxf7!? Rg8+
18. -Qg6+! 19. Ng5 h6 20. Rxd7 Kxd7 21. Qf7+ Qxf7 22. Nxf7 -+.
19. Bg5! Qg4+
19. -Qg6 20. Rf6 Qg7 (20. -Qh5 21. Kh1) 21. Rfxe6+ Bxe6 22. Rxe6+ Ne7 (22. -Kd7 23. Qh3 or 22. -Kf7 23. Nh4+!) 23. Qe1.
20. Kh1 Qh5 21. Ne5 Qxg5
21. -Nxe5? 22. Re7+ Kd8 23. Rg7+.
22. Rxd7 Nxe5 23. Rxe5
Other moves are worse: 23. Rxc7 Nd7! 24. Qh3 (24. d5!?) Qg4 or 23. Rxh7 Qg6 24. Qh3 O-O-O 25. dxe5 Qe4+!!.
23. -Qg1+ 24. Qxg1 Rxg1+ 25. Kxg1 Kxd7
And White has reached a terrible endgame with one Pawn down. Fortunately, computers can still blunder in endgames. By the way, what does that 3000 mean in Chessmaster 3000? Surely it is not the ELO rating; maybe the program aims to be a chessmaster in year 3000. Anyway, the rest does not need comments, or more straight: I cannot tell where the decisive blunder is made.
26. Rh5 Rg8+ 27. Kf2 Rg7 28. a4 b6 29. Kf3 Rf7+ 30. Ke4 Kd6 31. Rh6 Rg7 32. h3 c6 33. Kf4 Rf7+ 34. Kg5 Rf5+ 35. Kg4 Ra5 36. Rxh7 Rxa4 37. h4 a5 38. h5 Rxc4 39. h6 Rxd4+ 40. Kg5 b5 41. Ra7 Rd2 42. Rxa5 Rh2 43. Kg6 e5 44. h7 c5?
At least this looks very stupid.
45. Rxb5 Rg2+ 46. Kf7 Rh2 47. Kg7 Rg2+ 48. Kf6
48. Kh8! looks better.
48. -Rf2+ 49. Kg5 Rf8 50. Rb7 e4 51. Rg7 Rh8 52. Kg6 e3 53. Rg8 Rxh7 54. Kxh7 Kd7? 55. Rg3 e2 56. Re3 c4 57. Rxe2 Kd6 58. Kg6 Kd5 59. Kf5 c3 60. Re8 Kc4 61. Ke4 c2 62. Rc8+ Kb3 63. Kd3 1-0