Now I have soap×2, weight companion stone, piece of chalk, tile B and tile C.I don't konw how to use them. I also don't know why there is Japanese in location 314. It's we Chinese calculated π exactly long long ago, not Japanese.
Thank you for your reply. I have played your game since sub1 in 2007. It's difficult for westerns to difference Chinese and Japanese. I like sub4 best.