ILLEGAL: n b8-c6 on turn 2:
There was no n on b8. The piece on b8 is a a.
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For diagnostic purposes, here is the full movelist:
1. P b2-b3 
1... p d7-d6 
2. P a2-a4 
2... n b8-c6 
3. P d2-d3 
3... s c8-c5 // Check.
4. P c2-c3 
4... s c5-a1 
5. R b1-a1 
5... a e8-f6 
6. DH c1-b2 
6... p g7-g6 
7. N f1-d2 
7... c a8-b6 
8. N d2-e4 
8... a f6-g7 
9. R a1-b1 
9... p e7-e5 
10. A d1-e3 
10... c b6-d7 
11. P b3-b4 
11... p a7-a6 
12. DH b2-b3 
12... dh d8-e7 
13. P b4-b5 
13... p a6-b5 
14. P a4-b5 
14... n c6-d8 
15. P h2-h4 
15... dh e7-e6 
16. P c3-c4 
16... a g7-f5 
17. A e3-d2 
17... p f7-f6 
18. N e4-g3 
18... a f5-d4 
19. A d2-h6 //Check!
19... k f8-e7 
20. A h6-d2 
20... n d8-f7 
21. P e2-e3 
21... a d4-c5 
22. K e1-e2 
22... r g8-a8 
23. N g3-e4 
23... a c5-b6 
24. N e4-c3 
24... p c7-c6 
25. A d2-f3 
25... c d7-c7 
26. DH b3-b4 
26... a b6-d7 
27. A f3-d2 
27... k e7-e8 
28. P f2-f3 
28... p d6-d5 
29. P b5-c6 
29... p b7-c6 
30. P c4-d5 
30... dh e6-d6 
31. P d5-c6 
31... dh d6-c6 
32. S g1-g3 //g1-e1-g3
32... a d7-f5 
33. S g3-c1 
33... dh c6-c5 
34. P g2-g4 
34... a f5-e7 
35. DH b4-b5 //Check!
35... dh c5-b5 
36. R b1-b5 
36... a e7-a3 
37. S c1-b3 
// http://play.chessvariants.org/pbmlogs/ratings.php?gamewcp=Cetran+Chess+2,
37... q h8-f8 
38. P h4-h5 
38... p g6-g5 
39. A d2-e4 
39... n f7-d8 
40. R b5-b6 
40... a a3-c5 
41. S b3-b2 //Check! (b2-b5-e8)
41... k e8-d7 
42. A e4-f5 //Check!
42... n d8-e6 
43. S b2-c4 
43... r a8-a7 
44. A f5-h7 
44... q f8-f7 
45. A h7-f5 
45... c c7-c8 
46. C h1-b1 
46... r a7-c7 
47. N c3-d5 
47... a c5-d3 // Check.
48. K e2-d3 
48... r c7-c4 
49. R b6-b7 //Check!
49... k d7-e8 
50. R b7-b8 
50... n e6-d8 
51. N d5-f6 //Check!
51... q f7-f6 
52. R b8-c8 
52... q f6-f5 // Check.
53. P g4-f5 
53... r c4-c8 
54. K d3-e4 
54... n d8-f7 
55. C b1-b6 
55... r c8-d8 
56. C b6-e6 //Check!
56... k e8-d7 
57. C e6-g7 
57... k d7-e7 
58. C g7-g6 //Check!
58... k e7-d7 
59. P f5-f6 
59... k d7-e6 
60. C g6-e7 //Check!
60... k e6-f6 
61. C e7-g6;won //Checkmate!
In case there is a bug in the code, the settings file can be edited at /play/pbm/play.php?game=Cetran+Chess+2&settings=asymmetric&submit=Edit