ILLEGAL: N g1-f3 on turn 1:
There was no N on g1. The piece on g1 is a R.
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For diagnostic purposes, here is the full movelist:
||||| // jeju,
||||| //
||||| // Do you have space now for a KRC?
||||| //
||||| // Cheers,
||||| // Jose
1. N g1-f3 
1... n c10-d8 
2. h3-e3 
2... p g7-f7 
3. c1-d3 
3... c b8-e8 
4. c4-d4 
4... n d8-e6 
5. R b1-c1 
5... n e6-d4 
6. P e4-d4 
6... r b10-b3 
7. F d1-d2 
7... n g10-f8 
8. d3-c5 
8... pass 
9. c5-d3;d2-c3 
9... r b3-b6 
10. E a1-b4 
10... E b4-a1 // Illegal move
11. g4-f4 
11... n f8-h7 
12. h1-g1 
12... r h10-g10 
13. R g1-g10 
13... f f10-g10 
14. E i1-g4 
14... r b6-i6 
15. i4-h4 
15... e a10-d8 
16. E a1-c4 
16... p a7-a6 
17. P f4-f5 
17... e d8-f5 
18. R c1-b1 
18... f d10-c9 
19. R b1-b10 
19... pass 
20. b10-b1; f3-g5 
20... n h7-g5 // NxN
21. P h4-h5 
21... n g5-h7 
22. R b1-b5 
22... r i6-e6 
23. F f1-f2 // move based on assumption that f2 protects e3...
23... p f7-f6 
24. P h5-g5 
24... n h7-g5 
25. P d4-e4 
25... r e6-e4 
26. F f2-g3 
26... r e4-e3 // check!
27. G e2-f2 
27... r e3-g3 
28. G f2-g3 
28... G-f2; r-g3 // illegal move
29. F c3-d2 
29... G f2-e2; C-e3; F-f2; r g3-e4; F d2-c3 
30. F f2-f3 
30... r e4-e6 
31. F f3-f4 
31... e f5-c3 
32. f4-g5 
32... r e6-e3 // check!
33. e2-d2 
33... e9-d9 
34. F g5-f6 
34... e3-d3; won
In case there is a bug in the code, the settings file can be edited at /play/pbm/play.php?game=Korean+Random+Chess&settings=set1&submit=Edit