1) The throne can be used only to capture the king, not the "normal" pieces.
2) Yes, it should be considered as a draw but this site does not support a perpetual check detection yet. What you can do in such situation is to send a message to me and I will set a draw manually.
(hjem) Prøv Spillerens Ordbok hvis du vil sende en hilsen til noen på deres eget språk. Du finner den under linken "Mer om språk" like under flaggene. (pauloaguia) (Vis alle tips)