The Horse/Knight, Rook, King, and Pawn (Thai names Ma, Rua, Khun, and Bia respectively) move as they do in western chess. The Queen (Met) and Nobleman (Khon) move accordingly:
The pawns promote on the 3rd from the last rank (the starting rank of the enemy pawns). Once promoted the pieces are flipped over to indicate promotion and may move 1 square diagonally as the Queen does.
The similar Cambodian game Ouk is played with the same pieces and the same starting array as Makruk. However, it stills allows two special movement rules that have fallen out of use in Makruk: