Last Sunday morning over drawn-out breakfast, when I should have been doing something helpful before church, I managed to pull this off. My favourite game so far, I think. The relative size of the attacking forces in the endgame (which was reached very quickly indeed) shows that it's not all about strength of numbers but about targeted, focused power.
Computer vs. J
1. P76 P84
2. R68 P85
3. B77 P34
4. P66 P64
5. S38 G(6)52
6. P65 Bx77
7. Nx77 Px65
8. B’55 B’44
9. Bx44 Px44
10. B’15 B’42
11. B26 B33
12. S88 P86
13. Px86 Rx86
14. G78 P64
15. Rx64 P45
16. R69 Rx76
17. R65 R66
18. Rx66 Bx66
19. R’86 Bx57+ (a very high-cost strategy to get a horse right in front of the enemy king)
20. Rx81+ R’89
21. N’69 K42
22. B15 N33
23. P’79 +B66
24. Rx71 S32
25. S’98 P’68 (I have to give up the rook, but now Black’s generals are all in the wrong corner…)
26. Sx89 Px69+
27. Kx69 N’57
28. K59 Nx49+
29. Sx49 P14
30. B26 G’39 (a tiny attack, but surprisingly effective)
31. N’66 G(5)51
32. R’72 P’62
33. Rx73+ K31 (‘an early king escape is worth 8 moves’ – shogi proverb)
34. Bx53+ K22
35. P’67 Gx49
36. Kx49 S’48
37. K38 S39+
38. K28 +B48
39. K18 +Bx47
40. G’28 P15 (the humble, heroic pawn decides the game…)
41. P’52 P16
42. Px51+ Gx29
43. +Px41 Gx28
44. Kx28 G’29
45. K18 Px17+
46. +Bx17 Gx19 (even the return of the cavalry cannot save my silicon friend)
47. Kx19 Lx17=
48. P’18 Lx18+
49. Kx18 P’17
50. K28 N’16
51. Kx17 B’39
52. Kx16 +B25 checkmate