The rules of Semedo are not described well in Mandragorias by Thomas Hyde which is the primary source for Semedo. The moves of the pawn, knight and scientists are not described but presumably the pawn moves like a pawn in western chess without the double-step option on the first move, the knight might either moves like the knight in westernchess or like the Horse in Xiangqi and the scientists may be similar to the Advisor in Xiangqi. The rocket's movement is described, but poorly, but it might move like the cannon in Xiangqi. The king is described as not being able to attack, this may mean that the king cannot move and is trapped in its starting position but also that it simply cannot capture any pieces.