ILLEGAL: WP d2-e2 on turn 13:

There was no WP on d2. The piece on d2 is a CP.

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For diagnostic purposes, here is the full movelist:

1. P d2-d4 
1... p f7-f6 
2. RB e1-d2 
2... p h7-h6 
3. P g2-g4 
3... p e7-e5 
4. RB d2-b4 
4... p c7-c5 
5. P d4-c5 
5... _jg_heb d8-c5 //d8-c7-b6-c5
6. RB b4-c5 
6... mm c8-c5;A18-d8 //Check!
7. P b2-b3; A1-e1 
7... p a7-a5 
8. .QJ e1-b2 
8... p b7-b5;S18-b7 
9. P f2-f4 
9... p a5-a4 
10. MM h1-b4 
10... fo b8-e2 
11. MM b4-d8; S1-f2 
11... _jg_fi a8-a6 
12. .QJ b2-c5; T1-d2 
12... _jg_fi a6-c5;T18-c7 
13. WP d2-e2 
13... k f8-e7;B18-f8 
14. MM d8-b4 
14... se b7-b6 
15. P f4-e5 
15... p f6-f5 
16. SE f2-f4; B1-e1 
16... p f5-g4 
17. ~L g1-g4 
17... rb g8-e6;C18-c8 
18. MM b4-h1; C1-g1 
18... k e7-d8;U18-e7 
19. P h2-h3; U1-g2 
19... ra f8-f5;f4- 
20. _JG_FI f1-f5 
20... rb e6-f5 
21. RA e1-f2 
21... _jg_fi c5-e6 
22. RA f2-f4; f5- 
22... _jg_fi e6-f4 
23. _JG_LEF g1-f4; D1-f1 
23... .jp e7-e6;S17-e7;D18-f8 
24. FO d1-e4; S2-d2 
24... sd e7-f7 
25. .JP g2-f5 
25... .jp e6-h5 
26. SD d2-d4 
26... p d7-d5;E18-a8;T17-d7 
27. FO e4-d5 
27... _jg_lef c8-d5 //c8-b7-d5
28. MM h1-b4 
28... _jg_lef d5-c6 
29. P c2-c4; T2-b2 
29... se b6-a5 
30. MM b4-f2; E1-e1 
30... p b5-b4 
31. _JG_HEB b1-d3 
31... p a4-b3 
32. _JG_.NJZ e1-b3; U2-g2 
32... se a5-a4 
33. _JG_.NJZ b3-a6; won

In case there is a bug in the code, the settings file can be edited at /play/pbm/play.php?game=UC-170-13&settings=Asymmetric&submit=Edit