in the correspondence game against Syracuse during move 52, it is possible to continue, yet the game does not let me.
Please have a look.
Thank you very much in advance.
Update: to continue to field 6
Nevermind, problem solved.
@Raskarr In that game black had to observe "Turkish strike" (Coup Turc) rule which doesn't allow to capture white checker 22 twice!
Yes, thank you and sorry, I did not encounter this problem before or I forgot about it. Won't happen again =)