A Game of Chess

Your kingdom, Ebonisya, ruled by the Obsidian Court and protected by Knights of Onyx, is at war with a rivaling country. Your king must stay back at home to maintain order and direct the citizens, leaving you, the queen, to front the battlefield. Your job? Infiltrate Castle Porcelain. Assassinate King Alabaster and seize control of the kingdom of Ivorium. The only thing stopping you? The Queen, Goshinitee, with her Selenites, who marches toward your husband and citizens. Can you beat her to a checkmate?