Hallo Franz,

I was testing the emulator playing a game between Chess Challenger 10B (CB-Emu) and the real Champion Sensory Chess Challenger. As expected the Champion won easily (maybe more than 300 elo diference). Then when i check the log file i found two nonsense moves 6.a4c6 by that time there was no piece at the a4 square. And for black 11..b5f5 also there was no piece in b5 square. What could this be?

[Event "CB-Emu"]
[Date "2019.03.06"]
[White "Champion Sensory Chess Challenger"]
[Black "Fidelity Chess Challenger 10-B"]

1. e2e4 e7e5 2. g1f3 b8c6 3. f1b5 g8f6 4. e1g1 f6e4 5. d2d4 d7d6
6. a4c6 b7c6 7. d4e5 c8e6 8. b1d2 e4d2 9. c1d2 d6e5 10. f3e5 d8d5
11. d2f4 b5f5 12. d1e2 e6c4 13. c2d3 c4d3 14. g2g4 f7f6 15. e2e6 c8b7
16. e6b3 d8d3 17. a4b5 c6b5 18. f1c1 f8d6 19. f7g7 h8f8 20. h2h4 f6f5
21. g4g5 f8a8 22. h6c6 b7b8 23. c6d5 e5b2 24. d5d8 b8b7 25. d8c7 1-0